SS WILSON ASSOCIATES
Consulting Engineers
REPORT NO. WA10-028-2
DETAILED NOISE CONTROL STUDY
EAST DON RIVER BRIDGE OF
PROPOSED YONGE SUBWAY EXTENSION
FROM FINCH TO NORTH OF HWY 7
YORK REGION
SUBMITTED TO:
McCORMICK RANKIN CORPORATION
2655 NORTH SHERIDAN WAY, SUITE 300
MISSISSAUGA, ONTARIO
L5K 2P8
PREPARED BY:
ANTHONY MARTELLA, B.A.SC., M.ENG.
SENIOR PROJECT ANALYST
AND
HELAL HOQUE
PROJECT ANALYST
APPROVED BY:
HAZEM GIDAMY, P.ENG.
PRINCIPAL
JANUARY 10, 2012
SSWA INC. 15 Wertheim Court, Suite 211, Richmond Hill, Ontario, L4B 3H7
Tel: (905) 707-5800 Fax: (905) 707-5801 e-mail: info@sswilsonassociates.com
www.sswilsonassociates.com & www.noisetraining.com
DETAILED NOISE CONTROL STUDY
EAST DON RIVER BRIDGE OF
PROPOSED YONGE SUBWAY EXTENSION
FROM FINCH TO NORTH OF HWY 7
YORK REGION
INDEX
PAGE
1.0
INTRODUCTION
1
2.0
SOUND LEVEL CRITERIA
3
3.0
FINDINGS AND RECOMMENDATIONS
5
4.0
ANALYSIS
8
TABLES
12
FIGURES
20
APPENDIX A: SAMPLE CALCULATIONS
36
APPENDIX B: RESPONSES TO DRAFT COMMENTS
66
2012-1-10 EDRB
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1.0
INTRODUCTION
1.1
The services of SS Wilson Associates were retained by McCormick Rankin
Corporation on behalf of TTC to study in more detail the noise study due to the
future subway train traffic on the East Don River Bridge component of the
Proposed Yonge Subway Extension. The study is concerned with the potential
noise impact of the subway viaduct on the nearby residential and other sensitive
uses.
The proposed East Don River Bridge is to be located along a
reconstructed stretch of the Yonge Street vertical road profile through the valley
north of Centre Street and south of Royal Orchard Boulevard.
Figure 1 illustrates the general location of the subject bridge (Key Plan) and
Figure 2 is an aerial view of the subject area.
1.2
The proposed East Don River Bridge is surrounded by the following:
o To the west by houses, forested land and a golf facility including a portion of
golf course.
o To the east by residential high rise buildings, forested land and a portion of
golf course.
1.3
The objectives of this study are to:



1.4
Predict, with more precision than in the previous (2009) noise study, the
resulting sound levels at the nearest / most exposed sensitive uses due to
movements of the subway trains on the proposed bridge (there are two
options for the type of bridge construction).
Assess the significance of the predicted sound levels at the receptors by
comparing with the predicted ambient sound levels or other relevant criteria.
Advise on the opportunities for application of measures to mitigate the noise
impacts where warranted for the identified design of the Bridge
Crossing/Subway Viaduct.
The existing Yonge Street road profile runs along the valley. The proposed twotier bridge will allow road traffic to run at an elevated level over the valley, on the
top tier, while the subway trains will run along the bottom tier. The subway
alignment will transition from an underground line to the north and south of the
bridge, through intermediate concrete tunnel sections, into the bottom tier where,
according to the designs prior to this noise study, it will be exposed from the
sides.
Figure 3 illustrates the overall Site Plan of the subject bridge and Figure 4 is an
elevation view.
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1.5
The subway sound data utilized in this study are based on actual sound
measurements undertaken by SS Wilson Associates (SSWA) for this project
including measured data of subway train movements on the existing Bloor
Viaduct and in tunnels below ground. For traffic noise on the public roadways,
the ambient sound levels are based on the use of the Ontario Ministry of
Environment’s (MOE) well established traffic noise prediction model using traffic
data provided by the Proponent.
1.6
This study represents a joint effort with the McCormick Rankin Corporation, who
provided the necessary project details.
For the full details on the project alignments and features, reference should be
made to the alignment details, sections, elevations and description of this transit
project prepared by McCormick Rankin Corporation in the conceptual design
report of 2011.
1.7
It should be noted that this study is concerned only with the noise due to normal
operation of the subway trains on the proposed bridge and not due to deviances
from the typical operating schedule or noise due to constructing the bridge.
1.8
The potential noise impacts on nearby sensitive land uses from the proposed
East Don River Bridge were studied by SS Wilson Associates in 2008 as part of
a broader noise study of the Yonge Subway Extension. The findings of that
study demonstrated that there would be significant noise impacts at receptors
nearest to the bridge due to the subway movements. The analysis of the current
study (2011) is based on the same sound level measurements of subway trains
used in the previous (2009) noise study. The current study utilizes updated
information on grades, bridge design and expected operating parameters.
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2.0
2.1
SOUND LEVEL CRITERIA
MOE/TTC Protocol For Noise And Vibration Assessment
In 1993, the Ministry of the Environment and the Toronto Transit Commission
developed several technical documents, referred to as MOE/TTC Protocols to
deal with specific transit projects.
To the best of our knowledge, this Protocol has not been updated, nor a new one
published to deal with new transit endeavors in the Province. As a matter of fact,
other 1990’s MOE/TTC Protocols were used in connection with other more
recent TTC projects which already received MOE environmental approvals.
At the time of writing this report, no update to existing protocols or new protocol
for the Yonge subway extension is known to the investigators of this acoustical
study. Therefore, the criteria of the above mentioned protocols are assumed to
be applicable to this project.
2.2
Synopsis Of The Applicable MOE/TTC Protocol/Criteria For Assessment
The following is a summary of the relevant technical criteria for noise of the
subway on the bridge:
Noise impact shall be predicted and assessed during the design of the Subway
using the following sound level criteria:

Daytime Equivalent Sound Level Criteria: The limit at a point of reception
for the predicted daytime equivalent sound levels for rail transit operating
alone (excluding contributions from the ambient) is 55 dBA or the ambient
Leq 16h, whichever is higher.

Nighttime Equivalent Sound Level Criteria: The limit at a point of reception
for the predicted nighttime equivalent sound levels for rail transit operating
alone (excluding contributions from the ambient) is 50 dBA or the ambient
Leq8h, whichever is higher.

Passby Sound Level Criteria: The limit at a point of reception for the
predicted Lpassby for a single train operating alone and excluding
contributions from other sources is 80 dBA. This limit is based on vehicles
operating on tangent track. It does not apply within 100m of special track
work and excludes wheel rail squeal.

Mitigating measures will be incorporated in the design of the Subway
when predictions show that any of the above limits are exceeded by more
than 5 dB. All mitigating measures shall ensure that the predicted sound
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levels are as close to, or lower than, the respective limits as is
technologically, economically, and administratively feasible 1 .
2.3

The protocol applies to existing and proposed residential development
having municipal approval on the date of this protocol. The protocol also
applies to existing and municipally approved proposed nursing homes,
group homes, hospitals and other such institutional land uses where
people reside. This protocol does not apply to commercial and industrial
land uses.

This protocol does not apply closer than 15m to the centerline of the
nearest track. Any such cases shall be assessed on a case by case basis.
Ambient Sound Levels
For the purpose of assessing the impact at the receptors in this project, the
following sound levels are determined:
 Existing ambient sound levels due to Yonge Street traffic without the
subway project.
 Future ambient sound levels due to Yonge Street traffic without the bridge
 Future ambient sound levels with the bridge
All future values are taken to be 10 years from the writing of this report. These
predicted ambient sound levels are given in Tables 1 to 3.
The existing ambient sound levels give an ultimate baseline as to what sound
levels the receptors are currently exposed to. However, due to traffic growth,
these levels are expected to increase even without the subway and bridge being
constructed.
Construction of the bridge can alter the future ambient sound levels due to the
new road grades and elevations involved. These future ambient levels can be
used as a baseline level to compare the impact of the subway bridge traffic
against. However, in fairness, the future ambient sound levels without the bridge
project should also be referenced in order to determine the overall impact of
adding the options of exposed subway span. This comparison has been done,
and it is found that there are negligible changes in future ambient (road vehicular
traffic) sound levels due to the construction of the bridge; these results are given
in Table 4.
1
Notes by SS Wilson Associates: The terms technically, economically and administratively feasible are in reference
to site-specific criteria results to describe several parameters related to the ability to construct noise controls, in this
case for a transit route. Firstly, “technical” difficulties may be encountered in constructing noise control structures
such as sound barriers (interference with safety, drainage concerns, not meeting the stated acoustic criteria,
excessively high sound barriers, etc). “Economic” feasibility is in reference to measures providing low cost-benefits.
“Administrative” feasibility may encompass a wide range of other general conditions making it difficult to construct
noise control structures such as sound barriers, including availability of land to construct a new structure or having to
build on environmentally sensitive lands.
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3.0
FINDINGS AND RECOMMENDATIONS
3.1
Findings
The predicted future ambient sound levels on Yonge Street are significant
enough (above the protocol criteria levels) that they can be used as the criteria,
with the exception of the nighttime Leq 8hour ambient sound level at receptor R5,
which is 49 dBA (therefore, Leq 8hour 50 dBA is used as the nighttime criterion
for that receptor as per the MOE/TTC Protocol discussed in Section 2.2 of this
report). All future ambient sound levels with the bridge construction are given in
Table 3.
The predicted sound levels at the receptors due to the subway trains crossing the
bridge are given in Table 5. When comparing the future ambient sound levels
due to road traffic along Yonge Street with the undertaking of the bridge to the
sound levels due to the subway trains crossing the bridge, it can be seen that
there are exceedances of the sound level criteria.
The impact on the receptors due to the subway trains passing over the bridge,
the predicted future ambient, applicable sound level criteria and excesses over
the criteria are summarized in Table 6.
It should be noted that the actual sound levels in any individual operating hour
will likely by higher (typically 2 dB during the daytime and 3 dB during the
nighttime). This is because the metrics of Leq16h and Leq8h are determined by
logarithmic averaging of different operating hours – these being rush hours and
regular hours for the former, and regular hours and hours of no operation
(overnight) for the latter.
3.2
Recommendations
1. The entire underside of the upper tier deck/flooring (above and facing the
subway trains) should be fitted with an acoustically absorptive ceiling that is
durable and suitable for this application. This can be done with 3 inch thick
perforated stainless steel panels with an absorptive medium inside to be
applied to the underside of the steel deck. The minimum sound absorption
rating of the panels should be NRC 0.95.
2. The transition tunnels from the bridge to underground tunnel section to the
north and south of the bridge should be acoustically lined on the interior with
sound absorbing material to a minimum distance of 2 times the largest
opening area dimension to reduce the reverberant effect of the reflected
sound waves near the opening. The details of the material and installation
details to be investigated during the detailed design stage.
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3. It is understood that crossovers will not occur on the bridge span.
4. Effective vibration isolation of the tracks along the bridge should be
implemented as shown conceptually in MRC design drawings. This can be in
the form of the concrete “double tie” system with suitable elastomeric pads in
between the ties and the bridge structure (to later design).
5. A specially designed sound barrier should be installed on each side of each
track. The current analysis suggests that the minimum height is 2 meters
above the top of rail on the west side of the bridge and full height on the east
side of the bridge. In this case there would be a 2m high barrier on the west
side of the west track, no barrier on the east side of the west track, a 2 meter
high barrier on the west side of the east track, and a full height barrier on the
east side of the east track.
Please see Figure 12 for a schematic of the minimal barrier placements.
Barriers are to be absorptive from the bottom to as high as possible by using
3 inch thick perforated stainless steel panels with absorptive media inside.
Transparent viewing panels such as laminated glazing for noise and safety,
Plexiglass or equivalent can be placed on top of the lower stainless steel
sections for daylight and viewing with a maximum percentage of 30-40% of
the barrier (the viewing transparent panels can be placed at a height
comparable to the viewing panels in the subway cars).
The drawings currently indicate a barrier height of approximately 2.3 meters
(including the guideway height) above the top of rail elevation on the west
side of the west track and east side of the east track, i.e. the outer sides of
the bridge.
Because the subway pass-by noise will be clearly audible at most
receptors in the study area, the preferred alternative is to enclose the
east and west sides of the subway bridge with steel panels or other
suitable dense material and viewing transparent panels along the entire
length of the bridge.
The recommended glass product is Durisol Paraglas Soundstop or equivalent
(the use of other forms of glass panels is also acceptable). The following
specifications are required:


Minimum surface density of 20 kg/sq.m (4 lb/sq ft.), and
Minimum sound transmission rating of STC-34.
With a fully enclosed transparent panels system, the noise, when audible, will
be heard as a low-frequency rumble due to the ability of the glass to mitigate
the higher frequencies much more than low frequencies.
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6. The subway authority should continue to implement its tracks and wheels
grinding programs with the objective of reducing noise (and vibration) on a
continuous basis.
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4.0
ANALYSIS
4.1
Predicted Ambient Sound Levels In The Study Area
The ambient sound levels due to traffic on Yonge Street based on the proposed
alignment and bridge were calculated at each of the receptors. The MOE
ORNAMENT model was used for prediction of ambient sound levels based on
knowledge of the various input parameters that affect the overall sound levels at
the various receptor locations. The input parameters are summarized as follows:
-
Distance setback from the receptor to the road.
Height of receptor (ground elevation and actual height above ground
elevation).
Type of ground cover (absorptive or reflective).
Traffic speed.
Angle of exposure from the receptor to the road segment.
Traffic volumes, traffic mix (% medium and heavy trucks).
Effect of acoustic shielding by barriers (not applicable in this study).
A sample of such calculation is included in Appendix A.
4.2
TTC Subway Noise Emission
The noise emission of the subway train passing over a bridge was based on
sound level measurements undertaken by SS Wilson Associates of subway train
pass-bys on the Bloor Viaduct as well as stock measurements of subway trains
moving on typical flat ground.
The closest example of a viaduct structure is the Bloor-Danforth subway line
where the subway runs in a steel structure suspended under the Bloor Street
East/Danforth Avenue concrete bridge crossing over the Don River.
Figure 5 illustrates an aerial view of the Bloor Viaduct and the approximate
location of the sound measurement position.
Photographs 1 and 2 illustrate the existing Bloor viaduct and Photographs 3 to 4
illustrate the noise measurements arrangements.
The measurement position was located at an approximate distance of 30m to the
closest east-bound subway path at an approximate vertical distance separation
of 4 to 5m below the subway in order to reduce the effect of vehicular traffic noise
on Bloor Street.
The measurements were taken with a Precision Sound Level Analyzer, RION
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NA-28, which was calibrated with a precision sound level calibrator, B&K 4132.
The pass-by data of several subway trains were recorded and later analyzed.
The sound level measurement procedures were primarily based on the Ministry
of Environment procedures in their Publication NPC-103 “Procedures” included in
the Model Municipal Noise Control by-Law, the recommendations of the
instrument manufactures and the best engineering practices to suit site specific
conditions. The sound level meters were checked and calibrated before, during
and following completion of the measurement sessions without any appreciable
change in the sound levels.
The weather conditions during the measurement sessions were favourable for
measurements as the local wind speed did not exceed 30 km/hr and there was
no precipitation.
The measurements were taken when the train entered and left the most westerly
50m bridge span where the noise signal was taken within such distance.
Figure 6 illustrates a summary of the measured sound levels for several subway
train pass-bys with a consistent maximum sound level (Lmax) average of 83 dBA
at 30m. The average Leq of an eastbound and westbound pass-by over the
viaduct is approximately 81 dBA at 30m average distance.
For comparison of subway trains moving in a steel structure viaduct with subway
train movements on flat ground, reference should be made to Figure 7 which
illustrates a comparison between the frequency spectra of both cases. The
results show that the steel structure is measured to produce 13 dBA higher
noise, which is considered “acoustically significant”.
It is possible that the sound emission level of a train pass-by on open concrete
structure can be 3 dB less than that of a pass-by on a steel structure such as the
Bloor Viaduct.
4.3
Acoustic Model
A 3-D computer program for multiple point and line sources and multiple
receivers was used to calculate the sound levels. The program takes into
account:




Reference sound levels and reference distances for the subway train
pass-bys, i.e. sound emission levels.
The Cartesian co-ordinates (x, y & z) of all sources and receivers.
The number of occurrences of the noise in a given time period (frequency
of train pass-bys) and the time period of each event (based on the speed,
length of train and distance travelled over the bridge).
Spherical divergence factor.
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



Additional attenuation due to sound barriers; natural or man-made types.
Additional attenuation due to ground (as modified by sources/receiver
elevations, the presence of intervening barriers and the type of ground).
The ground cover was assumed to be absorptive in the case of houses
located up the valley from the bridge, but no ground attenuation was taken
for high-rise receptors or for situations where the direct line from source to
receptor is high above the ground.
Atmospheric attenuation due to air molecular absorption.
Additional adjustment factors, where required, to account for site specific
issues.
Sample calculations are included in Appendix A.
Operational Data
The existing schedule for the Yonge Street subway line was consulted in order to
estimate the hourly volume of trains that will cross the East Don River Bridge as
well as the hours of operation. Based on the existing schedule, the following
data is pertinent to this study:




Trains will cross the bridge from approximately 6:00 a.m. to 2 a.m.
During rush hours, which occur from approximately 7 a.m. to 10 a.m. and
from approximately 4 p.m. to 7 p.m., there will be 48 trains crossing the
bridge per hour (24 in each direction). This is based on a current Yonge
Line train frequency of 2 to 3 minutes for each direction. Based on this
operating schedule, 6 of the 16 daytime hours will be “rush hours.”
During regular (off-peak) hours, there will be 26 trains crossing the bridge
per hour (13 in each direction). This is based on a current Yonge Line
train frequency of 4 to 5 minutes for each direction.
The trains are assumed to cross the bridge at a fairly constant speed of
approximately 75 km/hr.
Physical Data
The dimensions of the subway cars used in the analysis are based on the current
T-1 car dimensions.
The car body length is therefore assumed to be
approximately 23 meters, and the trains that will cross the bridge are assumed to
be 6-car consists (overall length of approximately 138 meters per train). The
dimensions are given in Figure 8.
Two options for the bridge construction were given. One option is a steel arch /
suspension cable construction and the other option is a plate girder construction.
The two bridge construction options are shown in Figures 10 and 11. Since both
cases involve a lower tier that is open along the sides, they are both
approximately the same in terms of emissions to the east and west. The position
of the bridge and elevation are given in Figures 3 and 4.
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The subway trains are assumed to be exposed on the east and west sides along
the entire span of the bridge and possibly slightly to the north and south of the
bridge in either case (approximately 150 meters total exposure). Transitions to
the underground will be through intermediate concrete enclosures to the north
and south of the bridge; the trains are therefore not exposed to the outdoors
along the transitions.
The bridge tier that the subway trains run on should be solid (i.e. not open grate
or the like, as this would allow sound to emit from the bottom).
4.4
Selected Points of Reception
In all, eight points of reception were selected around the bridge. Receptors R1
through R8 are two storey houses southwest of the bridge span. Receptors R4
and R5 are high rises to the northeast of the bridge span. R6 and Rg2 are
receptor locations to the southeast of the bridge and are a residential high rise
and golf course, respectively. Receptor Rg2 is a point on a golf course west of
the bridge span. The receptor locations can be seen in Figure 8.
Forested land to the east of the bridge span was not assessed, and as the
results show, the limiting factor on the east side of the bridge span is the impact
on the high rise towers. This is because there is a possibility of more than one
floor being exposed to the moving trains.
The golf courses were each assessed at the nearest putting green, i.e. not in the
rough even if slightly closer to the bridge.
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TABLES
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TABLE 1
PREDICTED EXISTING AMBIENT SOUND LEVELS
Receptor Code Predicted Daytime Predicted Nighttime Ambient Sound Level, Ambient Sound Level, Leq16hr, dBA Leq8hr, dBA Receptor Type R1 Single Family House, 2nd Floor 66 59 R2 Single Family House, 2nd Floor 59 52 R3 Single Family House, 2nd Floor 57 50 R4 High‐rise Residential Building* 66 59 R5 High‐rise Residential Building* 55 49 R6 High‐rise Residential Building* 69 62 Rg1 Golf Course, Putting Green 61 N/A Rg2 Golf Course, Putting Green 62 N/A *Taken at storey nearest to proposed bridge.
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TABLE 2
PREDICTED FUTURE AMBIENT SOUND LEVELS WITH NO BRIDGE
Receptor Code Predicted Daytime Predicted Nighttime Ambient Sound Level, Ambient Sound Level, Leq16hr, dBA Leq8hr, dBA Receptor Type R1 Single Family House, 2nd Floor 66 60 R2 Single Family House, 2nd Floor 59 53 R3 Single Family House, 2nd Floor 57 51 R4 High‐rise Residential Building* 66 60 R5 High‐rise Residential Building* 56 49 R6 High‐rise Residential Building* 69 63 Rg1 Golf Course, Putting Green 61 N/A Rg2 Golf Course, Putting Green 62 N/A *Taken at storey nearest to proposed bridge.
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TABLE 3
PREDICTED FUTURE AMBIENT SOUND LEVELS WITH BRIDGE
Receptor Code Predicted Daytime Predicted Nighttime Ambient Sound Level, Ambient Sound Level, Leq16hr, dBA Leq8hr, dBA Receptor Type R1 Single Family House, 2nd Floor 66 60 R2 Single Family House, 2nd Floor 59 53 R3 Single Family House, 2nd Floor 57 51 R4 High‐rise Residential Building* 66 60 R5 High‐rise Residential Building* 56 49 R6 High‐rise Residential Building* 69 63 Rg1 Golf Course, Putting Green 61 N/A Rg2 Golf Course, Putting Green 63 N/A *Taken at storey nearest to proposed bridge.
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TABLE 4
DIFFERENCES IN PREDICTED FUTURE AMBIENT SOUND LEVELS WITH BRIDGE
AND PREDICTED FUTURE AMBIENT SOUND LEVELS WITHOUT BRIDGE
Receptor Code Difference in Difference in Predicted Daytime Predicted Nighttime Ambient Sound Level, Ambient Sound Level, Leq16hr, dBA Leq8hr, dBA Receptor Type R1 Single Family House, 2nd Floor 0 0 R2 Single Family House, 2nd Floor 0 0 R3 Single Family House, 2nd Floor 0 0 R4 High‐rise Residential Building* 0 0 R5 High‐rise Residential Building* 0 0 R6 High‐rise Residential Building* 0 0 Rg1 Golf Course, Putting Green 0 N/A Rg2 Golf Course, Putting Green 1 N/A *Taken at storey nearest to proposed bridge.
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TABLE 5
PREDICTED SUBWAY BRIDGE PASSOVER SOUND LEVELS
WITHOUT NOISE MITIGATION MEASURES
Receptor Code R1 Receptor Type Single Family House, 2nd Floor nd
Predicted Subway Train Only Daytime Sound Levels, Leq 16hr, dBA Predicted Subway Train Only Night time Sound Levels, Leq 8hr, dBA 67 63 R2 Single Family House, 2 Floor 68 64 R3 Single Family House, 2nd Floor 67 63 R4 High‐rise Residential Building* 69 65 R5 High‐rise Residential Building* 69 65 R6 High‐rise Residential Building* 69 65 Rg1 Golf Course, Putting Green 72 N/A Rg2 Golf Course, Putting Green 71 N/A *Taken at storey nearest to proposed bridge.
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TABLE 6
NOISE IMPACT OF SUBWAY TRAIN PASSING OVER BRIDGE AS PREDICTED AT STUDIED RECEPTORS
Predicted Predicted Predicted Daytime Night time Future Sound Sound Daytime Level Due Level Due Ambient to to Sound Subway, Subway, Level, Leq16hr, Leq8hr, Leq16hr, dBA dBA dBA Predicted Applicable Applicable Future Daytime Nighttime Excess Nighttime Criteria Criteria (Impact) Ambient From From Daytime / Sound MOE/TTC MOE/TTC Nighttime, Level, Protocol Protocol dB Leq8hr, Leq16hr, Leq8hr, dBA dBA dBA Receptor Code Receptor Type R1 Single Family House, 2nd Floor 67 63 66 60 66 60 1/3 R2 Single Family House, 2nd Floor 68 64 59 53 59 53 9/11 R3 Single Family House, 2nd Floor 67 63 57 51 57 51 10/12 R4 High‐rise Residential Building* 69 65 66 60 66 60 3/5 R5 High‐rise Residential Building* 69 65 56 49 56 50 13/15 R6 High‐rise Residential Building* 69 65 69 63 69 63 0/2 Rg1 Golf Course, Putting Green 72 N/A 61 N/A 61 N/A 11 Rg2 Golf Course, Putting Green 71 N/A 63 N/A 63 N/A 8 *Taken at storey nearest to proposed bridge.
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TABLE 7
PREDICTED SUBWAY BRIDGE PASSOVER SOUND LEVELS
WITH SOUND ABSORPTIVE CEILING, 2 METER BARRIERS ON WEST SIDES AND
FULL HEIGHT BARRIER ON EAST SIDE
Receptor Code Receptor Type Predicted Subway Train Only Daytime Sound Levels, Leq 16hr, dBA Predicted Subway Train Only Night time Sound Levels, Leq 8hr, dBA R1 Single Family House, 2nd Floor 56 52 R2 Single Family House, 2nd Floor 56 52 55 51 R3 nd
Single Family House, 2 Floor R4 High‐rise Residential Building* <55 <50** R5 High‐rise Residential Building* <55** <50** R6 High‐rise Residential Building* <55** <50** Rg1 Golf Course, Putting Green 58 N/A Rg2 **
**
Golf Course, Putting Green <55 N/A *Taken at storey nearest to proposed bridge.
**Actual value depends on glass selection, but minimum value of STC-34 is required as a baseline.
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FIGURES
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Subject Site
FIGURE 1
KEY PLAN
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Subject Site
FIGURE 2
AERIAL PHOTOGRAPH
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FIGURE 3
PLAN VIEW OF VIADUCT
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FIGURE 4
ELEVATION VIEW OF VIADUCT
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SUBWAY LINE
VIADUCT BELOW
BLOOR ST BRIDGE
N
MEASUREMENT
LOCATION
FIGURE 5
MEASUREMENT LOCATION OF EXISTING BLOOR VIADUCT
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1/3 OCTAVE BANDS
A-WEIGHTED 1/3 OCTAVE BANDS SOUND LEVELS
100
95
95
90
90
85
85
East Bound @ 30m
West Bound @ 45m
East Bound @ 30m
West Bound @ 45m
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Log Average of All Levels
FIGURE 6
SUMMARY OF THE MEASURED LMAX SOUND LEVELS FROM BLOOR VIADUCT
26
Project No.: WA10-028-2
O.A. dBL
10 K
6.3 K
1/3 Octave Bands Centre Frequency, Hz
Log Average of All Levels
SS Wilson Associates Consulting Engineers
4K
2.5K
1.6K
1K
630
400
25
O.A. dBL
1/3 Octave Bands Centre Frequency, Hz
10 K
6.3 K
4K
2.5K
1.6K
1K
50
630
50
400
55
250
55
160
60
100
60
63
65
40
65
250
70
160
70
75
100
75
80
63
80
40
A-Weighted Sound Level, dBA
100
25
Unweighted Sound Level, dB
LINEAR/UN-WEIGHTED 1/3 OCTAVE BANDS SOUND LEVELS
1/3 OCTAVE BANDS
A-WEIGHTED 1/3 OCTAVE BANDS SOUND LEVELS
100
95
95
90
90
85
85
Subway Train in Steel Viaduct@ 30m
Subway Train on Flat Ground @ 30m
Subway Train in Steel Viaduct@ 30m
Subway Train on Flat Ground @ 30m
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
FIGURE 7
COMPARISON BETWEEN THE MEASURED Lmax SOUND LEVELS FROM SUBWAY TRAIN
MOVEMENTS IN A STEEL STRUCTURE VIADUCT WITH TRAINS MOVING ON FLAT GROUND
SS Wilson Associates Consulting Engineers
27
O.A. dBL
1/3 Octave Bands Centre Frequency, Hz
10 K
6.3 K
4K
2.5K
1.6K
1K
630
400
25
10 K
6.3 K
O.A. dBL
1/3 Octave Bands Centre Frequency, Hz
4K
2.5K
1.6K
1K
50
630
50
400
55
250
55
160
60
100
60
63
65
40
65
250
70
160
70
75
100
75
80
63
80
40
A-Weighted Sound Level, dBA
100
25
Unweighted Sound Level, dB
LINEAR/UN-WEIGHTED 1/3 OCTAVE BANDS SOUND LEVELS
Project No.: WA10-028-2
FIGURE 8
ASSUMED SUBWAY CAR DIMENSIONS
SS Wilson Associates Consulting Engineers
28
Project No.: WA10-028-2
SS Wilson Associates Consulting Engineers
Project No.: WA10-028-2
FIGURE 9
POINTS OF RECEPTION
29
FIGURE 10
BRIDGE OPTION 1
SS Wilson Associates Consulting Engineers
Project No.: WA10-028-2
30
FIGURE 11
BRIDGE OPTION 2
SS Wilson Associates Consulting Engineers
Project No.: WA10-028-2
31
EAST
WEST
MINIMUM 2M
ABOVE TOP OF
RAIL
NOTE: GUIDEWAYS STRUCTURE UPON
WHICH BARRIER IS PLACED IS
ASSUMEDTO BE SOLID ALONG THE
ENTIRE SPAN OF THE BRIDGE SUCH THAT
THERE ARE NO HOLES OR GAPS
UNDERNEATH THE BARRIER.
MINIMUM 2M
ABOVE TOP OF
RAIL
ABSORPTIVE
PANELS CAN
BE PLACED
ON INSIDE OF
GUIDEWAY
FULL HEIGHT FROM TOP OF
LOWER TIER TO UNDERSIDE
OF TOP TIER
NTS
FIGURE 12
SCHEMATIC OF MINIMUM SOUND BARRIER REQUIREMENTS
SS Wilson Associates Consulting Engineers
32
Project No.: WA10-028-2
PHOTOGRAPHS
SS Wilson Associates Consulting Engineers
33
PHOTO 1
BLOOR STREET VIADUCT
PHOTO 2
BLOOR STREET VIADUCT WITH SUBWAY TRAIN
SS Wilson Associates Consulting Engineers
34
PHOTO 3
SOUND LEVEL MEASUREMENT OF SUBWAY
TRAINS ON BLOOR STREET VIADUCT
PHOTO 4
SOUND LEVEL MEASUREMENT OF SUBWAY
TRAINS ON BLOOR STREET VIADUCT
SS Wilson Associates Consulting Engineers
35
APPENDIX A
SAMPLE CALCULATIONS
SS Wilson Associates Consulting Engineers
36
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
PRELIMINARY NOISE ASSESMENT
0
WA10-028-2
East Don River Bridge
R2-Worst Case Rush Hour-2 m barrier on north, enclosed on south with ac. absorption
DATE PREPARED : April 4, 2011
File Number :
Project Name :
Receptor Name :
170.0
5.0
377.0
265.0
3.0
G
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Model (1=none,2=CMHC,3=ISO)
Stationary Noise Type
SOURCE NAME
S-1
S-2
S-3
S-4
S-5
S-6
0
0
0
0
0
0
0
0
0
OVERALL LEVEL, Leq
Results-R2_2m.xls
General (non-impulsive) Source
Leq, dBA
Without
Mitigation
Rank No.
Leq, dBA
With
Mitigation
Rank No.
Lp, dBA
Ref.Dist
Lp @15m
64
63
62
61
59
58
0
0
0
0
0
0
0
0
0
1
2
3
4
5
6
7
7
7
7
7
7
7
7
7
52
51
50
50
48
47
0
0
0
0
0
0
0
0
0
1
2
3
4
5
6
7
7
7
7
7
7
7
7
7
83
83
83
83
83
83
0
0
0
0
0
0
0
0
0
30
30
30
30
30
30
15
15
15
15
15
15
15
15
15
89
89
89
89
89
89
0
0
0
0
0
0
0
0
0
70
dBA
58
Notes
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
dBA
1 -2
70
0 0
0 0
0 0
0 0
0 0
0 0
0
0
0
Source of Noise
Leq, dBA Without Mitigation
Results-R2_2m.xls
OVERALL LEVEL,
Leq
0 0
0
0 0
0
0 0
0
47
0
48
0
50
58
58
0
50
59
S-6
51
61
S-5
52
62
S-4
63
S-3
64
S-2
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
S-1
SOUND LEVEL, Leq dBA or Llm dBAi
PREDICTED UNATTENUATED AND ATTENUATED SOUND LEVELS
Leq, dBA With Mitigation
2 -2
R2_2m.xls
DATE PREPARED : April 4, 2011
(Analysis)-1
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
PRELIMINARY NOISE ASSESMENT
0
File Number :
Project Name :
Receptor Name :
Source Name
S-1
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Considered Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Rush Hour-2 m barrier on north, enclosed on south and acoustical absorption
S-1
Y
do not calc
Subway Train on Bridge
N
calc
Yes
Source Unattenuated Leq dBA
64 Source Attenuated Leq dBA
52
31.5
63
125
250
500
1000
2000
4000
8000
dBL
dBA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
383.0
383.0
383.0
383.0
383.0
383.0 383.0
383.0
383.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
164.5
164.5
164.5
164.5
164.5
164.5 164.5
164.5
164.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
164.9
164.9
164.9
164.9
164.9
164.9 164.9
164.9
164.9
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
71
71
71
71
71
71
71
71
71
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
71
71
71
71
71
71
71
71
71
Ok
-7.5
-7.5
-7.5
-7.5
-7.5
-7.5
-7.5
-7.5
-7.5
73.6
79.7
82.0
74.2
71.5
70.3
67.7
63.6
56.2
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
71
71
71
71
71
71
71
71
71
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
72.0
78.1
80.4
72.6
69.9
68.7
66.1
62.0
54.6
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
0.0
-0.1
-0.1
-0.2
-0.4
-1.0
-1.8
-9.1
-9.1
-9.1
-9.2
-9.2
-9.3
-9.5
-10.1
-10.9
72.0
78.1
80.4
72.5
69.8
68.5
65.7
61.0
52.8
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
3.7
3.7
3.7
3.7
3.7
3.7
3.7
3.7
3.7
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
5.7
5.7
5.7
5.7
5.7
5.7
5.7
5.7
5.7
77.7
83.8
86.1
78.3
75.5
74.2
71.4
66.7
58.5
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
48
48
48
48
48
48
48
48
48
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
62.6
68.7
71.0
63.2
60.4
59.1
56.3
51.6
43.4
23.2
42.5
54.9
54.6
57.2
59.1
57.5
52.6
42.3
92.7
83.1
92.7
83.1
85.3
75.6
83.6
74.0
83.6
73.7
89.3
79.5
74.2
64.3
1/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Ignore ISO Barrier Rule for gnd Atten? ?
Decision
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-2
........
None
None
N
N
N
N
N
N
Barrier 1
N
N
164.5
164.5
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
41.0
41.0
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
164.5
164.5
41.0
41.0
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
170.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
164.5
164.5
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
41.0
41.0
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
164.5
30.0
5.0
0.0
0.0
170.0
41.0
0.0
bright
5.0
0.0
0.0
0.0
N
N
164.5 164.5
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
41.0
41.0
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
164.5
30.0
5.0
0.0
0.0
170.0
41.0
0.0
bright
5.0
0.0
0.0
0.0
N
164.5
30.0
5.0
0.0
0.0
170.0
41.0
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
164.5
164.5
41.0
41.0
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
170.5
170.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
164.5
41.0
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.5
0.0
0.0
0.0
N
164.5
41.0
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.5
0.0
0.0
0.0
N
164.5
41.0
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.5
0.0
0.0
0.0
N
164.5
41.0
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.5
0.0
0.0
0.0
N
164.5
41.0
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
56.3
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
51.6
N
-25.0
0.0
43.4
74.2
64.3
62.2
52.3
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
62.6
68.7
71.0
63.2
60.4
59.1
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-9.0
-9.0
-9.0
-9.0
-9.0
-9.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-12.0
-12.0
-12.0
-12.0
-12.0
-12.0
50.6
56.7
59.0
51.2
48.4
47.1
11.2
30.5
42.9
42.6
45.2
47.1
64.3
dBA Source Attenuated Leq dBA
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
44.3
45.5
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
39.6
40.6
52.3
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
31.4
30.3
dBA
2/30
R2_2m.xls
DATE PREPARED : April 4, 2011
(Analysis)-3
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
PRELIMINARY NOISE ASSESMENT
0
File Number :
Project Name :
Receptor Name :
Source Name
S-2
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Rush Hour-2 m barrier on north, enclosed on south and acoustical absorption
S-2
Subway Train on Bridge
Yes
Source Unattenuated Leq dBA
63 Source Attenuated Leq dBA
51
31.5
63
125
250
500
1000
2000
4000
8000
dBL
dBA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
408.0
408.0
408.0
408.0
408.0
408.0 408.0
408.0
408.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
164.8
164.8
164.8
164.8
164.8
164.8 164.8
164.8
164.8
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
165.2
165.2
165.2
165.2
165.2
165.2 165.2
165.2
165.2
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
77
77
77
77
77
77
77
77
77
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
77
77
77
77
77
77
77
77
77
Ok
-8.2
-8.2
-8.2
-8.2
-8.2
-8.2
-8.2
-8.2
-8.2
72.9
79.0
81.3
73.5
70.8
69.6
67.0
62.9
55.5
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
77
77
77
77
77
77
77
77
77
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
70.7
76.8
79.1
71.3
68.6
67.4
64.8
60.7
53.3
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
0.0
-0.1
-0.1
-0.2
-0.5
-1.2
-2.1
-10.4
-10.4
-10.4
-10.4
-10.5
-10.6
-10.8
-11.5
-12.5
70.7
76.8
79.1
71.3
68.5
67.2
64.4
59.6
51.2
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.1
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
6.1
6.1
6.1
6.1
6.1
6.1
6.1
6.1
6.1
76.8
82.9
85.2
77.4
74.6
73.3
70.5
65.7
57.3
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
48
48
48
48
48
48
48
48
48
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
61.7
67.8
70.1
62.3
59.5
58.2
55.4
50.5
42.2
22.3
41.6
54.0
53.7
56.3
58.2
56.6
51.5
41.1
92.7
83.1
92.7
83.1
84.5
74.9
82.4
72.7
82.3
72.4
88.4
78.5
73.3
63.4
3/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Is there a sound Barrier (Y or N) ?
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-4
........
None
None
N
N
N
N
N
N
Barrier 2
N
N
164.8
164.8
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
47.2
47.2
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
164.8
164.8
47.2
47.2
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
170.8
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
164.8
164.8
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
47.2
47.2
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
164.8
30.0
5.0
0.0
0.0
170.0
47.2
0.0
bright
5.0
0.0
0.0
0.0
N
N
164.8 164.8
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
47.2
47.2
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
164.8
30.0
5.0
0.0
0.0
170.0
47.2
0.0
bright
5.0
0.0
0.0
0.0
N
164.8
30.0
5.0
0.0
0.0
170.0
47.2
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
164.8
164.8
47.2
47.2
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
170.8
170.8
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
164.8
47.2
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.8
0.0
0.0
0.0
N
164.8
47.2
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.8
0.0
0.0
0.0
N
164.8
47.2
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.8
0.0
0.0
0.0
N
164.8
47.2
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.8
0.0
0.0
0.0
N
164.8
47.2
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.8
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
55.4
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
50.5
N
-25.0
0.0
42.2
73.3
63.4
61.3
51.4
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
61.7
67.8
70.1
62.3
59.5
58.2
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-9.0
-9.0
-9.0
-9.0
-9.0
-9.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-12.0
-12.0
-12.0
-12.0
-12.0
-12.0
49.7
55.8
58.1
50.3
47.5
46.2
10.3
29.6
42.0
41.7
44.3
46.2
63.4
dBA Source Attenuated Leq dBA
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
43.4
44.6
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
38.5
39.5
51.4
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
30.2
29.1
dBA
4/30
R2_2m.xls
(Analysis)-5
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
DATE PREPARED : April 4, 2011
File Number :
Project Name :
Receptor Name :
Source Name
S-3
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
PRELIMINARY NOISE ASSESMENT
0
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Rush Hour-2 m barrier on north, enclosed on south and acoustical absorption
S-3
Subway Train on Bridge
Yes
Source Unattenuated Leq dBA
62 Source Attenuated Leq dBA
50
31.5
63
125
250
500
1000
2000
4000
8000
dBL
dBA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
433.0
433.0
433.0
433.0
433.0
433.0 433.0
433.0
433.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
165.1
165.1
165.1
165.1
165.1
165.1 165.1
165.1
165.1
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
165.5
165.5
165.5
165.5
165.5
165.5 165.5
165.5
165.5
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
90
90
90
90
90
90
90
90
90
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
90
90
90
90
90
90
90
90
90
Ok
-9.6
-9.6
-9.6
-9.6
-9.6
-9.6
-9.6
-9.6
-9.6
71.5
77.6
79.9
72.1
69.4
68.2
65.6
61.5
54.1
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
90
90
90
90
90
90
90
90
90
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
68.7
74.8
77.1
69.3
66.6
65.4
62.8
58.7
51.3
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
0.0
-0.1
-0.1
-0.3
-0.6
-1.5
-2.7
-12.4
-12.4
-12.4
-12.5
-12.5
-12.7
-13.0
-13.9
-15.1
68.7
74.8
77.1
69.2
66.5
65.1
62.2
57.2
48.6
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
6.8
6.8
6.8
6.8
6.8
6.8
6.8
6.8
6.8
75.5
81.6
83.8
76.0
73.2
71.9
69.0
64.0
55.4
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
48
48
48
48
48
48
48
48
48
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
60.4
66.4
68.7
60.9
58.1
56.8
53.9
48.9
40.3
21.0
40.2
52.6
52.3
54.9
56.8
55.1
49.9
39.2
92.7
83.1
92.7
83.1
83.2
73.5
80.3
70.7
80.3
70.3
87.1
77.1
71.9
62.0
5/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Is there a sound Barrier (Y or N) ?
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-6
........
None
None
N
N
N
N
N
N
Barrier 3
N
N
165.1
165.1
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
60.1
60.1
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
165.1
165.1
60.1
60.1
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
171.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
165.1
165.1
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
60.1
60.1
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.1
30.0
5.0
0.0
0.0
170.0
60.1
0.0
bright
5.0
0.0
0.0
0.0
N
N
165.1 165.1
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
60.1
60.1
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
165.1
30.0
5.0
0.0
0.0
170.0
60.1
0.0
bright
5.0
0.0
0.0
0.0
N
165.1
30.0
5.0
0.0
0.0
170.0
60.1
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
165.1
165.1
60.1
60.1
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
171.1
171.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.1
60.1
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.1
0.0
0.0
0.0
N
165.1
60.1
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.1
0.0
0.0
0.0
N
165.1
60.1
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.1
0.0
0.0
0.0
N
165.1
60.1
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.1
0.0
0.0
0.0
N
165.1
60.1
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
53.9
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
48.9
N
-25.0
0.0
40.3
71.9
62.0
59.9
50.0
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
60.4
66.4
68.7
60.9
58.1
56.8
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-9.0
-9.0
-9.0
-9.0
-9.0
-9.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-12.0
-12.0
-12.0
-12.0
-12.0
-12.0
48.4
54.4
56.7
48.9
46.1
44.8
9.0
28.2
40.6
40.3
42.9
44.8
62.0
dBA Source Attenuated Leq dBA
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
41.9
43.1
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
36.9
37.9
50.0
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
28.3
27.2
dBA
6/30
R2_2m.xls
(Analysis)-7
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
DATE PREPARED : April 4, 2011
File Number :
Project Name :
Receptor Name :
Source Name
S-4
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
PRELIMINARY NOISE ASSESMENT
0
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Rush Hour-2 m barrier on north, enclosed on south and acoustical absorption
S-4
Subway Train on Bridge
Yes
Source Unattenuated Leq dBA
61 Source Attenuated Leq dBA
50
31.5
63
125
250
500
1000
2000
4000
8000
dBL
dBA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
458.0
458.0
458.0
458.0
458.0
458.0 458.0
458.0
458.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
165.4
165.4
165.4
165.4
165.4
165.4 165.4
165.4
165.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
165.8
165.8
165.8
165.8
165.8
165.8 165.8
165.8
165.8
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
107
107
107
107
107
107
107
107
107
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
107
107
107
107
107
107
107
107
107
Ok
-11.1
-11.1
-11.1
-11.1
-11.1
-11.1
-11.1
-11.1
-11.1
70.0
76.1
78.4
70.6
67.9
66.7
64.1
60.0
52.6
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
107
107
107
107
107
107
107
107
107
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
66.7
72.8
75.1
67.3
64.6
63.4
60.8
56.7
49.3
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
-0.1
-0.1
-0.2
-0.4
-0.8
-1.9
-3.5
-14.4
-14.5
-14.5
-14.5
-14.6
-14.8
-15.2
-16.4
-17.9
66.7
72.7
75.0
67.2
64.4
63.0
60.0
54.7
45.8
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
74.2
80.3
82.5
74.7
71.9
70.5
67.5
62.3
53.3
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
48
48
48
48
48
48
48
48
48
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
59.1
65.2
67.4
59.6
56.8
55.4
52.4
47.1
38.2
19.7
39.0
51.3
51.0
53.6
55.4
53.6
48.1
37.1
92.7
83.1
92.7
83.1
81.7
72.0
78.3
68.6
78.2
68.2
85.8
75.7
70.6
60.6
7/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Is there a sound Barrier (Y or N) ?
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-8
........
None
None
N
N
N
N
N
N
Barrier 4
N
N
165.4
165.4
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
77.5
77.5
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
165.4
165.4
77.5
77.5
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
171.4
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
165.4
165.4
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
77.5
77.5
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.4
30.0
5.0
0.0
0.0
170.0
77.5
0.0
bright
5.0
0.0
0.0
0.0
N
N
165.4 165.4
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
77.5
77.5
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
165.4
30.0
5.0
0.0
0.0
170.0
77.5
0.0
bright
5.0
0.0
0.0
0.0
N
165.4
30.0
5.0
0.0
0.0
170.0
77.5
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
165.4
165.4
77.5
77.5
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
171.4
171.4
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.4
77.5
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.4
0.0
0.0
0.0
N
165.4
77.5
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.4
0.0
0.0
0.0
N
165.4
77.5
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.4
0.0
0.0
0.0
N
165.4
77.5
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.4
0.0
0.0
0.0
N
165.4
77.5
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.4
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
52.4
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
47.1
N
-25.0
0.0
38.2
70.6
60.6
59.6
49.6
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
59.1
65.2
67.4
59.6
56.8
55.4
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-8.0
-8.0
-8.0
-8.0
-8.0
-8.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-11.0
-11.0
-11.0
-11.0
-11.0
-11.0
48.1
54.2
56.4
48.6
45.8
44.4
8.7
28.0
40.3
40.0
42.6
44.4
60.6
dBA Source Attenuated Leq dBA
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
41.4
42.6
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
36.1
37.1
49.6
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
27.2
26.1
dBA
8/30
R2_2m.xls
(Analysis)-9
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
DATE PREPARED : April 4, 2011
File Number :
Project Name :
Receptor Name :
Source Name
S-5
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
PRELIMINARY NOISE ASSESMENT
0
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Rush Hour-2 m barrier on north, enclosed on south and acoustical absorption
S-5
Subway Train on Bridge
Yes
Source Unattenuated Leq dBA
59 Source Attenuated Leq dBA
48
31.5
63
125
250
500
1000
2000
4000
8000
dBL
dBA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
483.0
483.0
483.0
483.0
483.0
483.0 483.0
483.0
483.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
165.7
165.7
165.7
165.7
165.7
165.7 165.7
165.7
165.7
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
166.1
166.1
166.1
166.1
166.1
166.1 166.1
166.1
166.1
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
127
127
127
127
127
127
127
127
127
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
127
127
127
127
127
127
127
127
127
Ok
-12.6
-12.6
-12.6
-12.6
-12.6
-12.6
-12.6
-12.6
-12.6
68.5
74.6
76.9
69.1
66.4
65.2
62.6
58.5
51.1
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
127
127
127
127
127
127
127
127
127
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
64.8
70.9
73.2
65.4
62.7
61.5
58.9
54.8
47.4
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
-0.1
-0.1
-0.2
-0.5
-1.0
-2.4
-4.4
-16.3
-16.3
-16.3
-16.4
-16.5
-16.7
-17.2
-18.7
-20.6
64.8
70.9
73.2
65.3
62.5
61.1
58.0
52.4
43.1
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
8.3
8.3
8.3
8.3
8.3
8.3
8.3
8.3
8.3
73.1
79.2
81.5
73.6
70.8
69.4
66.3
60.7
51.4
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
48
48
48
48
48
48
48
48
48
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
58.0
64.1
66.3
58.5
55.7
54.2
51.1
45.6
36.2
18.6
37.9
50.2
49.9
52.5
54.2
52.3
46.6
35.1
92.7
83.1
92.7
83.1
80.2
70.5
76.5
66.8
76.4
66.2
84.7
74.5
69.5
59.4
9/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Is there a sound Barrier (Y or N) ?
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-10
........
None
None
N
N
N
N
N
N
Barrier 5
N
N
165.7
165.7
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
97.3
97.3
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
165.7
165.7
97.3
97.3
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
171.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
165.7
165.7
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
97.3
97.3
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.7
30.0
5.0
0.0
0.0
170.0
97.3
0.0
bright
5.0
0.0
0.0
0.0
N
N
165.7 165.7
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
97.3
97.3
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
165.7
30.0
5.0
0.0
0.0
170.0
97.3
0.0
bright
5.0
0.0
0.0
0.0
N
165.7
30.0
5.0
0.0
0.0
170.0
97.3
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
165.7
165.7
97.3
97.3
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
171.7
171.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.7
97.3
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.7
0.0
0.0
0.0
N
165.7
97.3
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.7
0.0
0.0
0.0
N
165.7
97.3
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.7
0.0
0.0
0.0
N
165.7
97.3
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.7
0.0
0.0
0.0
N
165.7
97.3
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
51.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
45.6
N
-25.0
0.0
36.2
69.5
59.4
58.5
48.4
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
58.0
64.1
66.3
58.5
55.7
54.2
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-8.0
-8.0
-8.0
-8.0
-8.0
-8.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-11.0
-11.0
-11.0
-11.0
-11.0
-11.0
47.0
53.1
55.3
47.5
44.7
43.2
7.6
26.9
39.2
38.9
41.5
43.2
59.4
dBA Source Attenuated Leq dBA
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
40.1
41.3
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
34.6
35.6
48.4
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
25.2
24.1
dBA
10/30
R2_2m.xls
(Analysis)-11
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
DATE PREPARED : April 4, 2011
File Number :
Project Name :
Receptor Name :
Source Name
S-6
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
PRELIMINARY NOISE ASSESMENT
0
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Rush Hour-2 m barrier on north, enclosed on south and acoustical absorption
S-6
Subway Train on Bridge
Yes
Source Unattenuated Leq dBA
58 Source Attenuated Leq dBA
47
31.5
63
125
250
500
1000
2000
4000
8000
dBL
dBA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
508.0
508.0
508.0
508.0
508.0
508.0 508.0
508.0
508.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
166.0
166.0
166.0
166.0
166.0
166.0 166.0
166.0
166.0
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
166.4
166.4
166.4
166.4
166.4
166.4 166.4
166.4
166.4
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
149
149
149
149
149
149
149
149
149
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
149
149
149
149
149
149
149
149
149
Ok
-13.9
-13.9
-13.9
-13.9
-13.9
-13.9
-13.9
-13.9
-13.9
67.2
73.3
75.6
67.8
65.1
63.9
61.3
57.2
49.8
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
149
149
149
149
149
149
149
149
149
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
63.3
69.4
71.7
63.9
61.2
60.0
57.4
53.3
45.9
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
-0.1
-0.2
-0.3
-0.6
-1.2
-3.0
-5.3
-17.8
-17.9
-17.9
-18.0
-18.1
-18.4
-19.0
-20.8
-23.2
63.3
69.3
71.6
63.7
60.9
59.4
56.2
50.3
40.5
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
8.6
8.6
8.6
8.6
8.6
8.6
8.6
8.6
8.6
71.9
77.9
80.2
72.3
69.5
68.0
64.8
58.9
49.1
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
48
48
48
48
48
48
48
48
48
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
56.7
62.8
65.1
57.2
54.4
52.9
49.7
43.8
34.0
17.3
36.6
49.0
48.6
51.2
52.9
50.9
44.8
32.9
92.7
83.1
92.7
83.1
78.8
69.2
74.9
65.3
74.8
64.6
83.4
73.2
68.3
58.0
11/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Is there a sound Barrier (Y or N) ?
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-12
........
None
None
N
N
N
N
N
N
Barrier 6
N
N
166.0
166.0
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
118.8
118.8
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
166.0
166.0
118.8
118.8
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
172.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
166.0
166.0
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
118.8
118.8
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
166.0
30.0
5.0
0.0
0.0
170.0
118.8
0.0
bright
5.0
0.0
0.0
0.0
N
N
166.0 166.0
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
118.8 118.8
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
166.0
30.0
5.0
0.0
0.0
170.0
118.8
0.0
bright
5.0
0.0
0.0
0.0
N
166.0
30.0
5.0
0.0
0.0
170.0
118.8
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
166.0
166.0
118.8
118.8
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
172.0
172.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
166.0
118.8
170.0
30.0
6.0
0.0
0.0
0.0
bright
172.0
0.0
0.0
0.0
N
166.0
118.8
170.0
30.0
6.0
0.0
0.0
0.0
bright
172.0
0.0
0.0
0.0
N
166.0
118.8
170.0
30.0
6.0
0.0
0.0
0.0
bright
172.0
0.0
0.0
0.0
N
166.0
118.8
170.0
30.0
6.0
0.0
0.0
0.0
bright
172.0
0.0
0.0
0.0
N
166.0
118.8
170.0
30.0
6.0
0.0
0.0
0.0
bright
172.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
49.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
43.8
N
-25.0
0.0
34.0
68.3
58.0
57.3
47.0
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
56.7
62.8
65.1
57.2
54.4
52.9
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-8.0
-8.0
-8.0
-8.0
-8.0
-8.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-11.0
-11.0
-11.0
-11.0
-11.0
-11.0
45.7
51.8
54.1
46.2
43.4
41.9
6.3
25.6
38.0
37.6
40.2
41.9
58.0
dBA Source Attenuated Leq dBA
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
38.7
39.9
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
32.8
33.8
47.0
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
23.0
21.9
dBA
12/30
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
PRELIMINARY NOISE ASSESMENT
0
WA10-028-2
East Don River Bridge
R2-Worst Case Regular Hour-2 m barrier on north, enclosed on south with ac. absorption
DATE PREPARED : April 4, 2011
File Number :
Project Name :
Receptor Name :
170.0
5.0
377.0
265.0
3.0
G
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Model (1=none,2=CMHC,3=ISO)
Stationary Noise Type
SOURCE NAME
S-1
S-2
S-3
S-4
S-5
S-6
0
0
0
0
0
0
0
0
0
OVERALL LEVEL, Leq
Results-R2_2m.xls
General (non-impulsive) Source
Leq, dBA
Without
Mitigation
Rank No.
Leq, dBA
With
Mitigation
Rank No.
Lp, dBA
Ref.Dist
Lp @15m
62
61
59
58
57
55
0
0
0
0
0
0
0
0
0
1
2
3
4
5
6
7
7
7
7
7
7
7
7
7
50
49
47
47
46
44
0
0
0
0
0
0
0
0
0
1
2
3
4
5
6
7
7
7
7
7
7
7
7
7
83
83
83
83
83
83
0
0
0
0
0
0
0
0
0
30
30
30
30
30
30
15
15
15
15
15
15
15
15
15
89
89
89
89
89
89
0
0
0
0
0
0
0
0
0
67
dBA
55
Notes
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
…………
dBA
1 -2
67
0 0
0 0
0 0
0 0
0 0
0 0
0
0
0
Source of Noise
Leq, dBA Without Mitigation
Results-R2_2m.xls
OVERALL LEVEL,
Leq
0 0
0
0 0
0
0 0
0
44
0
46
0
47
55
55
0
47
57
S-6
49
58
S-5
50
59
S-4
61
S-3
62
S-2
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
S-1
SOUND LEVEL, Leq dBA or Llm dBAi
PREDICTED UNATTENUATED AND ATTENUATED SOUND LEVELS
Leq, dBA With Mitigation
2 -2
R2_2m.xls
DATE PREPARED : April 4, 2011
(Analysis)-1
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
PRELIMINARY NOISE ASSESMENT
0
File Number :
Project Name :
Receptor Name :
Source Name
S-1
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Considered Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Regular Hour-2 m barrier on north, enclosed on south wand ac. absorption
S-1
Y
do not calc
Subway Train on Bridge
N
calc
Yes
Source Unattenuated Leq dBA
62 Source Attenuated Leq dBA
50
31.5
63
125
250
500
1000
2000
4000
8000
dBL
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
383.0
383.0
383.0
383.0
383.0
383.0 383.0
383.0
383.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
164.5
164.5
164.5
164.5
164.5
164.5 164.5
164.5
164.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
164.9
164.9
164.9
164.9
164.9
164.9 164.9
164.9
164.9
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
71
71
71
71
71
71
71
71
71
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
71
71
71
71
71
71
71
71
71
Ok
-7.5
-7.5
-7.5
-7.5
-7.5
-7.5
-7.5
-7.5
-7.5
73.6
79.7
82.0
74.2
71.5
70.3
67.7
63.6
56.2
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
71
71
71
71
71
71
71
71
71
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
-1.6
72.0
78.1
80.4
72.6
69.9
68.7
66.1
62.0
54.6
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
0.0
-0.1
-0.1
-0.2
-0.4
-1.0
-1.8
-9.1
-9.1
-9.1
-9.2
-9.2
-9.3
-9.5
-10.1
-10.9
72.0
78.1
80.4
72.5
69.8
68.5
65.7
61.0
52.8
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
3.7
3.7
3.7
3.7
3.7
3.7
3.7
3.7
3.7
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
5.7
5.7
5.7
5.7
5.7
5.7
5.7
5.7
5.7
77.7
83.8
86.1
78.3
75.5
74.2
71.4
66.7
58.5
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
26
26
26
26
26
26
26
26
26
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
60.0
66.0
68.3
60.5
57.8
56.5
53.7
48.9
40.7
20.6
39.8
52.2
51.9
54.6
56.5
54.9
49.9
39.6
dBA
92.7
83.1
92.7
83.1
85.3
75.6
83.6
74.0
83.6
73.7
89.3
79.5
71.5
61.7
1/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Ignore ISO Barrier Rule for gnd Atten? ?
Decision
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-2
........
None
None
N
N
N
N
N
N
Barrier 1
N
N
164.5
164.5
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
41.0
41.0
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
164.5
164.5
41.0
41.0
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
170.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
164.5
164.5
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
41.0
41.0
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
164.5
30.0
5.0
0.0
0.0
170.0
41.0
0.0
bright
5.0
0.0
0.0
0.0
N
N
164.5 164.5
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
41.0
41.0
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
164.5
30.0
5.0
0.0
0.0
170.0
41.0
0.0
bright
5.0
0.0
0.0
0.0
N
164.5
30.0
5.0
0.0
0.0
170.0
41.0
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
164.5
164.5
41.0
41.0
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
170.5
170.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
164.5
41.0
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.5
0.0
0.0
0.0
N
164.5
41.0
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.5
0.0
0.0
0.0
N
164.5
41.0
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.5
0.0
0.0
0.0
N
164.5
41.0
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.5
0.0
0.0
0.0
N
164.5
41.0
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
53.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
48.9
N
-25.0
0.0
40.7
71.5
61.7
59.5
49.7
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
60.0
66.0
68.3
60.5
57.8
56.5
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-9.0
-9.0
-9.0
-9.0
-9.0
-9.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-12.0
-12.0
-12.0
-12.0
-12.0
-12.0
48.0
54.0
56.3
48.5
45.8
44.5
8.6
27.8
40.2
39.9
42.6
44.5
61.7
dBA Source Attenuated Leq dBA
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
41.7
42.9
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
36.9
37.9
49.7
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
28.7
27.6
dBA
2/30
R2_2m.xls
DATE PREPARED : April 4, 2011
(Analysis)-3
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
PRELIMINARY NOISE ASSESMENT
0
File Number :
Project Name :
Receptor Name :
Source Name
S-2
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Regular Hour-2 m barrier on north, enclosed on south wand ac. absorption
S-2
Subway Train on Bridge
Yes
Source Unattenuated Leq dBA
61 Source Attenuated Leq dBA
49
31.5
63
125
250
500
1000
2000
4000
8000
dBL
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
408.0
408.0
408.0
408.0
408.0
408.0 408.0
408.0
408.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
164.8
164.8
164.8
164.8
164.8
164.8 164.8
164.8
164.8
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
165.2
165.2
165.2
165.2
165.2
165.2 165.2
165.2
165.2
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
77
77
77
77
77
77
77
77
77
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
77
77
77
77
77
77
77
77
77
Ok
-8.2
-8.2
-8.2
-8.2
-8.2
-8.2
-8.2
-8.2
-8.2
72.9
79.0
81.3
73.5
70.8
69.6
67.0
62.9
55.5
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
77
77
77
77
77
77
77
77
77
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
-2.1
70.7
76.8
79.1
71.3
68.6
67.4
64.8
60.7
53.3
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
0.0
-0.1
-0.1
-0.2
-0.5
-1.2
-2.1
-10.4
-10.4
-10.4
-10.4
-10.5
-10.6
-10.8
-11.5
-12.5
70.7
76.8
79.1
71.3
68.5
67.2
64.4
59.6
51.2
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.1
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
6.1
6.1
6.1
6.1
6.1
6.1
6.1
6.1
6.1
76.8
82.9
85.2
77.4
74.6
73.3
70.5
65.7
57.3
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
26
26
26
26
26
26
26
26
26
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
59.1
65.1
67.4
59.6
56.9
55.5
52.7
47.9
39.5
19.7
38.9
51.3
51.0
53.7
55.5
53.9
48.9
38.4
dBA
92.7
83.1
92.7
83.1
84.5
74.9
82.4
72.7
82.3
72.4
88.4
78.5
70.7
60.7
3/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Is there a sound Barrier (Y or N) ?
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-4
........
None
None
N
N
N
N
N
N
Barrier 2
N
N
164.8
164.8
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
47.2
47.2
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
164.8
164.8
47.2
47.2
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
170.8
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
164.8
164.8
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
47.2
47.2
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
164.8
30.0
5.0
0.0
0.0
170.0
47.2
0.0
bright
5.0
0.0
0.0
0.0
N
N
164.8 164.8
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
47.2
47.2
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
164.8
30.0
5.0
0.0
0.0
170.0
47.2
0.0
bright
5.0
0.0
0.0
0.0
N
164.8
30.0
5.0
0.0
0.0
170.0
47.2
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
164.8
164.8
47.2
47.2
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
170.8
170.8
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
164.8
47.2
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.8
0.0
0.0
0.0
N
164.8
47.2
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.8
0.0
0.0
0.0
N
164.8
47.2
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.8
0.0
0.0
0.0
N
164.8
47.2
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.8
0.0
0.0
0.0
N
164.8
47.2
170.0
30.0
6.0
0.0
0.0
0.0
bright
170.8
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
52.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
47.9
N
-25.0
0.0
39.5
70.7
60.7
58.7
48.7
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
59.1
65.1
67.4
59.6
56.9
55.5
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-9.0
-9.0
-9.0
-9.0
-9.0
-9.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-12.0
-12.0
-12.0
-12.0
-12.0
-12.0
47.1
53.1
55.4
47.6
44.9
43.5
7.7
26.9
39.3
39.0
41.7
43.5
60.7
dBA Source Attenuated Leq dBA
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
40.7
41.9
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
35.9
36.9
48.7
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
27.5
26.4
dBA
4/30
R2_2m.xls
(Analysis)-5
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
DATE PREPARED : April 4, 2011
File Number :
Project Name :
Receptor Name :
Source Name
S-3
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
PRELIMINARY NOISE ASSESMENT
0
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Regular Hour-2 m barrier on north, enclosed on south wand ac. absorption
S-3
Subway Train on Bridge
Yes
Source Unattenuated Leq dBA
59 Source Attenuated Leq dBA
47
31.5
63
125
250
500
1000
2000
4000
8000
dBL
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
433.0
433.0
433.0
433.0
433.0
433.0 433.0
433.0
433.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
165.1
165.1
165.1
165.1
165.1
165.1 165.1
165.1
165.1
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
165.5
165.5
165.5
165.5
165.5
165.5 165.5
165.5
165.5
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
90
90
90
90
90
90
90
90
90
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
90
90
90
90
90
90
90
90
90
Ok
-9.6
-9.6
-9.6
-9.6
-9.6
-9.6
-9.6
-9.6
-9.6
71.5
77.6
79.9
72.1
69.4
68.2
65.6
61.5
54.1
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
90
90
90
90
90
90
90
90
90
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
-2.8
68.7
74.8
77.1
69.3
66.6
65.4
62.8
58.7
51.3
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
0.0
-0.1
-0.1
-0.3
-0.6
-1.5
-2.7
-12.4
-12.4
-12.4
-12.5
-12.5
-12.7
-13.0
-13.9
-15.1
68.7
74.8
77.1
69.2
66.5
65.1
62.2
57.2
48.6
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
6.8
6.8
6.8
6.8
6.8
6.8
6.8
6.8
6.8
75.5
81.6
83.8
76.0
73.2
71.9
69.0
64.0
55.4
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
26
26
26
26
26
26
26
26
26
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
57.7
63.8
66.1
58.2
55.5
54.1
51.2
46.2
37.6
18.3
37.6
50.0
49.6
52.3
54.1
52.4
47.2
36.5
dBA
92.7
83.1
92.7
83.1
83.2
73.5
80.3
70.7
80.3
70.3
87.1
77.1
69.3
59.3
5/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Is there a sound Barrier (Y or N) ?
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-6
........
None
None
N
N
N
N
N
N
Barrier 3
N
N
165.1
165.1
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
60.1
60.1
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
165.1
165.1
60.1
60.1
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
171.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
165.1
165.1
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
60.1
60.1
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.1
30.0
5.0
0.0
0.0
170.0
60.1
0.0
bright
5.0
0.0
0.0
0.0
N
N
165.1 165.1
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
60.1
60.1
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
165.1
30.0
5.0
0.0
0.0
170.0
60.1
0.0
bright
5.0
0.0
0.0
0.0
N
165.1
30.0
5.0
0.0
0.0
170.0
60.1
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
165.1
165.1
60.1
60.1
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
171.1
171.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.1
60.1
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.1
0.0
0.0
0.0
N
165.1
60.1
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.1
0.0
0.0
0.0
N
165.1
60.1
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.1
0.0
0.0
0.0
N
165.1
60.1
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.1
0.0
0.0
0.0
N
165.1
60.1
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
51.2
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
46.2
N
-25.0
0.0
37.6
69.3
59.3
57.3
47.3
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
57.7
63.8
66.1
58.2
55.5
54.1
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-9.0
-9.0
-9.0
-9.0
-9.0
-9.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-12.0
-12.0
-12.0
-12.0
-12.0
-12.0
45.7
51.8
54.1
46.2
43.5
42.1
6.3
25.6
38.0
37.6
40.3
42.1
59.3
dBA Source Attenuated Leq dBA
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
39.2
40.4
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
34.2
35.2
47.3
0.0
-3.0
-9.0
0.0
0.0
0.0
0.0
-12.0
25.6
24.5
dBA
6/30
R2_2m.xls
(Analysis)-7
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
DATE PREPARED : April 4, 2011
File Number :
Project Name :
Receptor Name :
Source Name
S-4
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
PRELIMINARY NOISE ASSESMENT
0
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Regular Hour-2 m barrier on north, enclosed on south wand ac. absorption
S-4
Subway Train on Bridge
Yes
Source Unattenuated Leq dBA
58 Source Attenuated Leq dBA
47
31.5
63
125
250
500
1000
2000
4000
8000
dBL
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
458.0
458.0
458.0
458.0
458.0
458.0 458.0
458.0
458.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
165.4
165.4
165.4
165.4
165.4
165.4 165.4
165.4
165.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
165.8
165.8
165.8
165.8
165.8
165.8 165.8
165.8
165.8
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
107
107
107
107
107
107
107
107
107
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
107
107
107
107
107
107
107
107
107
Ok
-11.1
-11.1
-11.1
-11.1
-11.1
-11.1
-11.1
-11.1
-11.1
70.0
76.1
78.4
70.6
67.9
66.7
64.1
60.0
52.6
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
107
107
107
107
107
107
107
107
107
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
-3.4
66.7
72.8
75.1
67.3
64.6
63.4
60.8
56.7
49.3
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
-0.1
-0.1
-0.2
-0.4
-0.8
-1.9
-3.5
-14.4
-14.5
-14.5
-14.5
-14.6
-14.8
-15.2
-16.4
-17.9
66.7
72.7
75.0
67.2
64.4
63.0
60.0
54.7
45.8
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
74.2
80.3
82.5
74.7
71.9
70.5
67.5
62.3
53.3
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
26
26
26
26
26
26
26
26
26
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
56.4
62.5
64.8
56.9
54.1
52.7
49.8
44.5
35.5
17.0
36.3
48.7
48.3
50.9
52.7
51.0
45.5
34.4
dBA
92.7
83.1
92.7
83.1
81.7
72.0
78.3
68.6
78.2
68.2
85.8
75.7
68.0
57.9
7/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Is there a sound Barrier (Y or N) ?
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-8
........
None
None
N
N
N
N
N
N
Barrier 4
N
N
165.4
165.4
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
77.5
77.5
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
165.4
165.4
77.5
77.5
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
171.4
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
165.4
165.4
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
77.5
77.5
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.4
30.0
5.0
0.0
0.0
170.0
77.5
0.0
bright
5.0
0.0
0.0
0.0
N
N
165.4 165.4
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
77.5
77.5
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
165.4
30.0
5.0
0.0
0.0
170.0
77.5
0.0
bright
5.0
0.0
0.0
0.0
N
165.4
30.0
5.0
0.0
0.0
170.0
77.5
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
165.4
165.4
77.5
77.5
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
171.4
171.4
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.4
77.5
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.4
0.0
0.0
0.0
N
165.4
77.5
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.4
0.0
0.0
0.0
N
165.4
77.5
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.4
0.0
0.0
0.0
N
165.4
77.5
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.4
0.0
0.0
0.0
N
165.4
77.5
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.4
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
49.8
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
44.5
N
-25.0
0.0
35.5
68.0
57.9
57.0
46.9
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
56.4
62.5
64.8
56.9
54.1
52.7
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-8.0
-8.0
-8.0
-8.0
-8.0
-8.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-11.0
-11.0
-11.0
-11.0
-11.0
-11.0
45.4
51.5
53.8
45.9
43.1
41.7
6.0
25.3
37.7
37.3
39.9
41.7
57.9
dBA Source Attenuated Leq dBA
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
38.8
40.0
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
33.5
34.5
46.9
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
24.5
23.4
dBA
8/30
R2_2m.xls
(Analysis)-9
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
DATE PREPARED : April 4, 2011
File Number :
Project Name :
Receptor Name :
Source Name
S-5
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
PRELIMINARY NOISE ASSESMENT
0
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Regular Hour-2 m barrier on north, enclosed on south wand ac. absorption
S-5
Subway Train on Bridge
Yes
Source Unattenuated Leq dBA
57 Source Attenuated Leq dBA
46
31.5
63
125
250
500
1000
2000
4000
8000
dBL
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
483.0
483.0
483.0
483.0
483.0
483.0 483.0
483.0
483.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
165.7
165.7
165.7
165.7
165.7
165.7 165.7
165.7
165.7
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
166.1
166.1
166.1
166.1
166.1
166.1 166.1
166.1
166.1
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
127
127
127
127
127
127
127
127
127
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
127
127
127
127
127
127
127
127
127
Ok
-12.6
-12.6
-12.6
-12.6
-12.6
-12.6
-12.6
-12.6
-12.6
68.5
74.6
76.9
69.1
66.4
65.2
62.6
58.5
51.1
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
127
127
127
127
127
127
127
127
127
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
-3.7
64.8
70.9
73.2
65.4
62.7
61.5
58.9
54.8
47.4
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
-0.1
-0.1
-0.2
-0.5
-1.0
-2.4
-4.4
-16.3
-16.3
-16.3
-16.4
-16.5
-16.7
-17.2
-18.7
-20.6
64.8
70.9
73.2
65.3
62.5
61.1
58.0
52.4
43.1
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
8.3
8.3
8.3
8.3
8.3
8.3
8.3
8.3
8.3
73.1
79.2
81.5
73.6
70.8
69.4
66.3
60.7
51.4
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
26
26
26
26
26
26
26
26
26
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
55.3
61.4
63.7
55.8
53.0
51.6
48.5
42.9
33.6
15.9
35.2
47.6
47.2
49.8
51.6
49.7
43.9
32.5
dBA
92.7
83.1
92.7
83.1
80.2
70.5
76.5
66.8
76.4
66.2
84.7
74.5
66.9
56.7
9/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Is there a sound Barrier (Y or N) ?
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-10
........
None
None
N
N
N
N
N
N
Barrier 5
N
N
165.7
165.7
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
97.3
97.3
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
165.7
165.7
97.3
97.3
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
171.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
165.7
165.7
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
97.3
97.3
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.7
30.0
5.0
0.0
0.0
170.0
97.3
0.0
bright
5.0
0.0
0.0
0.0
N
N
165.7 165.7
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
97.3
97.3
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
165.7
30.0
5.0
0.0
0.0
170.0
97.3
0.0
bright
5.0
0.0
0.0
0.0
N
165.7
30.0
5.0
0.0
0.0
170.0
97.3
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
165.7
165.7
97.3
97.3
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
171.7
171.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
165.7
97.3
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.7
0.0
0.0
0.0
N
165.7
97.3
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.7
0.0
0.0
0.0
N
165.7
97.3
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.7
0.0
0.0
0.0
N
165.7
97.3
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.7
0.0
0.0
0.0
N
165.7
97.3
170.0
30.0
6.0
0.0
0.0
0.0
bright
171.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
48.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
42.9
N
-25.0
0.0
33.6
66.9
56.7
55.9
45.7
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
55.3
61.4
63.7
55.8
53.0
51.6
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-8.0
-8.0
-8.0
-8.0
-8.0
-8.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-11.0
-11.0
-11.0
-11.0
-11.0
-11.0
44.3
50.4
52.7
44.8
42.0
40.6
4.9
24.2
36.6
36.2
38.8
40.6
56.7
dBA Source Attenuated Leq dBA
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
37.5
38.7
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
31.9
32.9
45.7
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
22.6
21.5
dBA
10/30
R2_2m.xls
(Analysis)-11
SS WILSON ASSOCIATES
Modified N23-APRIL 9 2009
DATE PREPARED : April 4, 2011
File Number :
Project Name :
Receptor Name :
Source Name
S-6
Show Emission Data
Octave Band Centre Frequency, Hz
Use Cartesian Co-Ordinates ?
Receptor Xr Co-Ordinates, m
Receptor Yr Co-Ordinates, m
Ground Elevation at Receptor,m
Receptor Height above ground, m
Receptor Zr Co-Ordinates, m
Source Xs Co-Ordinates, m
Source Ys Co-Ordinates, m
Ground Elevation at source, m
Source Height above ground, m
Source Zs Co-Ordinates, m
Point or Line Source (P or L) ?
Spectrum, dBL
Adj. Name
Adj. Name
Reference Dist. for Lp, m
Adjusted Spectrum, dBL
Calculated Source-Receptor Distance,m
Scaled Source-Receptor Distance ,m
Geomtrical Spreading
Consider Distance atten.?
Distance Reduction Factor
Reference Dist. for Lp, m
Source-Receptor Distance,m
Distance Error Flag
Geometrical Spreading, dB
Lp With Geometric Spreading
ISO Ground Attenuation
Model (1=none,2=CMHC,3=ISO)
Use a Different Distance For Ground Atten.?
Distance used for calculation
Selected Distance For Calculation
Source Height above ground, m
Receptor Height above ground, m
Barrier Height Factor(2xbh) (CMHC)
P+T Factors (CMHC only)
Calculated Ground Attenuation
Ground Attenuation, dB
Lp With Geometric Spreading & Gnd.Atten.
Yes Atmospheric Attenuation
Consider atm.atten.of a Standard Day(Y or N)?
Atmospheric Attenuation, dB
Sub-Total Propagation Attenuation,dB
Lp with Geom.Spreading,Gnd.&Atm.Atten.
Additional Adjustments (Watch +/- Signs)
Tonal Penalty
Model Correction
Model Cal
Adj. 2
Adj. 3
Adj. 4
Sub-Total Adjustments, dB
Adjusted Lp @ Receptor, dBL
Leq Time Base , Minutes
Line Source Data :
- Length of Line Segment, m
- Source Speed, Km/Hr
- No. of Movements in Time Base
-Segment integration time, min.
Point Source Data :
- No. of Events in Time Base
- Each Event Duration, min.
- Duration Of All Events, min.
Linear Unattenuated Leq dBL
A-Weighted Unattenuated Leq dBA
S.S.Wilson Associates
PRELIMINARY NOISE ASSESMENT
0
WA10-028-2
General (non-impulsive) Source
East Don River Bridge
R2-Worst Case Regular Hour-2 m barrier on north, enclosed on south wand ac. absorption
S-6
Subway Train on Bridge
Yes
Source Unattenuated Leq dBA
55 Source Attenuated Leq dBA
44
31.5
63
125
250
500
1000
2000
4000
8000
dBL
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
377.0
377.0
377.0
377.0
377.0
377.0 377.0
377.0
377.0
265.0
265.0
265.0
265.0
265.0
265.0 265.0
265.0
265.0
170.0
170.0
170.0
170.0
170.0
170.0 170.0
170.0
170.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
175.0
175.0
175.0
175.0
175.0
175.0 175.0
175.0
175.0
508.0
508.0
508.0
508.0
508.0
508.0 508.0
508.0
508.0
195.0
195.0
195.0
195.0
195.0
195.0 195.0
195.0
195.0
166.0
166.0
166.0
166.0
166.0
166.0 166.0
166.0
166.0
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
166.4
166.4
166.4
166.4
166.4
166.4 166.4
166.4
166.4
P
P
P
P
P
P
P
P
P
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
81.1
87.2
89.5
81.7
79.0
77.8
75.2
71.1
63.7
149
149
149
149
149
149
149
149
149
75.0
75
75
75
75
75
75
75
75
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
20
20
20
20
20
20
20
20
20
30
30
30
30
30
30
30
30
30
149
149
149
149
149
149
149
149
149
Ok
-13.9
-13.9
-13.9
-13.9
-13.9
-13.9
-13.9
-13.9
-13.9
67.2
73.3
75.6
67.8
65.1
63.9
61.3
57.2
49.8
........
3
3
3
3
3
3
3
3
3
N
N
N
N
N
N
N
N
N
100
100
100
100
100
100
100
100
100
149
149
149
149
149
149
149
149
149
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
12
12
12
12
12
12
12
12
12
0
0
0
0
0
0
0
0
0
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
-3.9
63.3
69.4
71.7
63.9
61.2
60.0
57.4
53.3
45.9
........
Y
Y
Y
Y
Y
Y
Y
Y
Y
0.0
0.0
-0.1
-0.2
-0.3
-0.6
-1.2
-3.0
-5.3
-17.8
-17.9
-17.9
-18.0
-18.1
-18.4
-19.0
-20.8
-23.2
63.3
69.3
71.6
63.7
60.9
59.4
56.2
50.3
40.5
........
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
8.6
8.6
8.6
8.6
8.6
8.6
8.6
8.6
8.6
71.9
77.9
80.2
72.3
69.5
68.0
64.8
58.9
49.1
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
60.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
25
25
25
25
25
25
25
25
25
75
75
75
75
75
75
75
75
75
60
60
60
60
60
60
60
60
60
1.20
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
26
26
26
26
26
26
26
26
26
0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384 0.0384
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
54.1
60.1
62.4
54.5
51.7
50.2
47.0
41.1
31.4
14.7
33.9
46.3
45.9
48.5
50.2
48.2
42.1
30.3
dBA
92.7
83.1
92.7
83.1
78.8
69.2
74.9
65.3
74.8
64.6
83.4
73.2
65.6
55.4
11/30
R2_2m.xls
Noise Control Measures
Sound Barrier(s) Case
Is there a sound Barrier (Y or N) ?
Is there a sound Barrier (Y or N) ?
Source Sound Barrier 1……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Source Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 1)
Barrier 1 Reduction (IL)
Receptor Sound Barrier 2……..
Consider Barrier Attenuation
Ground Elevation At Source, M
Source-Barrier Distance
Ground Elevation At Receptor,M
Receiver-Barrier Dist.
Barrier Height
Barrier Gnd. Elev.
Barrier Thickness
Calc. Line Source Barrier Attenuation,dB
Barrier Acoustic Zone
Barrier Top Elevation
Line-To-Point Source Barrier Adjust.
Receiver Barrier Attenuation, dB
Sub-Result Sound Level (Barrier 2)
Barrier 2 Reduction (IL)
(Analysis)-12
........
None
None
N
N
N
N
N
N
Barrier 6
N
N
166.0
166.0
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
118.8
118.8
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
Barrier a
N
N
166.0
166.0
118.8
118.8
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
6.0
172.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBL
None
None
None
None
None
None
None
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
166.0
166.0
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0
170.0
118.8
118.8
0.0
0.0
bright
bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
166.0
30.0
5.0
0.0
0.0
170.0
118.8
0.0
bright
5.0
0.0
0.0
0.0
N
N
166.0 166.0
30.0
30.0
5.0
5.0
0.0
0.0
0.0
0.0
170.0 170.0
118.8 118.8
0.0
0.0
bright bright
5.0
5.0
0.0
0.0
0.0
0.0
0.0
0.0
N
166.0
30.0
5.0
0.0
0.0
170.0
118.8
0.0
bright
5.0
0.0
0.0
0.0
N
166.0
30.0
5.0
0.0
0.0
170.0
118.8
0.0
bright
5.0
0.0
0.0
0.0
0.0
0.0
N
N
166.0
166.0
118.8
118.8
170.0
170.0
30.0
30.0
6.0
6.0
0.0
0.0
0.0
0.0
0.0
0.0
bright
bright
172.0
172.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0 dBA
N
166.0
118.8
170.0
30.0
6.0
0.0
0.0
0.0
bright
172.0
0.0
0.0
0.0
N
166.0
118.8
170.0
30.0
6.0
0.0
0.0
0.0
bright
172.0
0.0
0.0
0.0
N
166.0
118.8
170.0
30.0
6.0
0.0
0.0
0.0
bright
172.0
0.0
0.0
0.0
N
166.0
118.8
170.0
30.0
6.0
0.0
0.0
0.0
bright
172.0
0.0
0.0
0.0
N
166.0
118.8
170.0
30.0
6.0
0.0
0.0
0.0
bright
172.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
47.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
-25.0
0.0
41.1
N
-25.0
0.0
31.4
65.6
55.4
54.6
44.4
Barrier(s) Results
Source Barrier Attenuation, dB
Receiver Barrier Attenuation, dB
Additional Attenuation Of Double Barrier
Calculated Overall Double Barrier Attenuation
Do You Want to Limit The Barrier Reduction ?
Maximum Allowed Barrier Reduction
Selected Reduction(s) Due to Barrier(s)
Resultant Sound Level With Barrier(s)
Barrier(s) Reduction (IL)
Sound Level Adjust.(Watch +/- Signs)
Note Re Removal of Tonal Penalty
Removal of Tonal Penalty
Abs. Ceil.
Barrier
Adjust 3
Adjust 4
Adjust 5
Adjust 6
Total Reduction, dB
Linear Attenuated Leq dBL
A-Weighted Attenuated Leq dBA
Source Unattenuated Leq dBA
S.S.Wilson Associates
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
N
N
N
N
N
N
-25.0
-25.0
-25.0
-25.0
-25.0
-25.0
0.0
0.0
0.0
0.0
0.0
0.0
54.1
60.1
62.4
54.5
51.7
50.2
0.0 dBL
0.0 dBA
........
0.0
0.0
0.0
0.0
0.0
0.0
-3.0
-3.0
-3.0
-3.0
-3.0
-3.0
-8.0
-8.0
-8.0
-8.0
-8.0
-8.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
-11.0
-11.0
-11.0
-11.0
-11.0
-11.0
43.1
49.1
51.4
43.5
40.7
39.2
3.7
22.9
35.3
34.9
37.5
39.2
55.4
dBA Source Attenuated Leq dBA
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
36.0
37.2
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
30.1
31.1
44.4
0.0
-3.0
-8.0
0.0
0.0
0.0
0.0
-11.0
20.4
19.3
dBA
12/30
R2 With Noise Controls
RUSH
HOURS
Leq Day
Leq Night