ROAD SAFETY AUDIT
Neponset Street Rotary/Pendergast Circle
Town of Norwood
September 2014
Prepared For:
On Behalf Of:
Westwood Marketplace Holdings LLC
Prepared By:
35 New England Business Center Drive
Suite 140
Andover, MA 01810-1066
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Table of Contents
Background ................................................................................................................................. 1
Project Data................................................................................................................................. 1
Project Location and Description ...............................................................................................2
Audit Observations & Potential Safety Enhancements............................................................ 5
Summary of Road Safety Audit..................................................................................................10
List of Appendices
Appendix A.
Appendix B.
Appendix C.
RSA Meeting Agenda
RSA Audit Team Contact List
Detailed Crash Data
List of Figures
Figure 1.
Figure 2.
Locus Map .............................................................................................................................. 3
Neponset Rotary/Pendergast Circle Existing Conditions....................................................... 4
List of Tables
Table 1.
Table 2.
Participating Audit Team Members ....................................................................................... 1
Potential Safety Enhancements Summary .............................................................................. 11
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Background
The Neponset Street Rotary, also known as Pendergast Circle, which is the convergence of Neponset
Street, Nahatan Street, and the US Route 1 on- and off-ramps, was identified as a high crash location in
the Metropolitan Area Planning Council (MAPC) based on the 2011 Highway Safety Improvement
Program (HSIP) cluster data. Improvements at this intersection, to be constructed as part of the off-site
mitigation related to the University Station mixed-use transit-oriented development to be located off of
University Avenue in Westwood, are currently under review by the MassDOT Highway Division at the
25% Design Level. The MassDOT Highway Division Traffic and Safety Engineering 25% Design
Submission Guidelines require a Road Safety Audit (RSA) be performed for all project-related high crash
locations to identify safety issues and enhancements that may be implemented in conjunction with the
University Station off-site mitigation project, as well as other measures that could be programmed for
implementation by others in the mid-term or long-term timeframes.
Project Data
The RSA for the subject location was conducted on September 8, 2014 at the Westwood Municipal
Building. The RSA Meeting Agenda is provided in Appendix A. Participating audit team members and
their affiliation are listed in Table 1; team member contact information is provided in Appendix B. For this
modified RSA, team members were encouraged to visit the location prior to the meeting to observe
operations and evaluate potential safety issues, using MassDOT’s Safety Review Prompt list for guidance.
At the meeting, team members were provided with an aerial photograph of the location, and a collision
diagram, summary table, and various bar charts analyzing motor vehicle crashes reported within the three
year review period (2010-2012). This material was reviewed by the team at the meeting in conjunction
with street level views afforded by Google Earth.
Table 1. Participating Audit Team Members
Audit Team Member
Agency/Affiliation
Mark Ryan
Paul Sicard
Lisa Schletzbaum
Corey O’Connor
Thomas Rebello
Alex Duggan
Erin Kinahan
Scott Thornton
Steve Boudreau
Jonathan Rockwell
Norwood DPW
Westwood Police Department
MassDOT Highway Division Safety Section
MassDOT Highway Division Safety Section
MassDOT Highway Division District 5 Traffic
MassDOT Highway Division District 5 Projects
MassDOT Highway Division District 6 Planning
Vanasse & Associates, Inc.
Vanasse & Associates, Inc.
Vanasse & Associates, Inc.
Page 1
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Motor vehicle crash data was provided by the Norwood Police Department for the most recent three year
review period available (2010-2012). The data provided includes 68 reported crashes, with three (4%)
resulting in personal injury, and no reported fatalities. The vast majority (87%) of the crashes were rear-end
crashes, with 74% of those occurring on the Route 1 off-ramps; five (7%) were crashes with fixed objects,
three (4%) were sideswipe crashes, and one (1.5%) was an angle crash. Fifteen (22%) of the crashes
occurred on wet pavement and two (3%) in icy conditions. Most of the crashes (47%) occurred during peak
evening commuting hours (2 pm to 6 pm).
Project Location and Description
The Neponset Street Rotary is a single-lane rotary under MassDOT Highway Division jurisdiction, which
provides for vehicle movements between Neponset Street, Nahatan Street, and the Route 1 on- and offramps. The overall diameter of the rotary is approximately 500 feet and the circulating roadway is
typically about 40 feet wide, currently striped with a 2 foot inside shoulder and approximate 28 foot
circulating lane. Each intersecting roadway enters and exits the rotary at an angle of approximately 20 to
40 degrees. A sidewalk currently traverses the rotary, beginning on the north side of Neponset Street, then
continuing counterclockwise around the rotary to the north side of Nahatan Street.
Neponset Street
Neponset Street is a two-lane urban principal arterial under Town of Norwood jurisdiction to a point
approximately 300 feet from the rotary, where it becomes MassDOT Highway Division jurisdiction. The
posted speed limit on Neponset Street is 30 miles per hour (mph).
Nahatan Street
Nahatan Street, which intersects the west side of the rotary, is a two-lane urban minor arterial under Town
of Norwood jurisdiction to a point approximately 200 feet from the rotary, where it becomes MassDOT
Highway Division jurisdiction. The posted speed limit along Nahatan Street is 30 mph.
Route 1 Ramps
The Route 1 on- and off-ramps intersect the rotary from the north and south, forming an elongated
diamond interchange. The ramps are each single lane ramps, approximately 22 feet wide, with crosswalks
across the northbound on- and southbound off-ramps on the northern side of the rotary.
A locus map and aerial photograph of the existing conditions are provided as Figure 1 and 2, respectively.
Page 2
Source: Google Earth.
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Road Safety Audit - Neponset Rotary/Pendergast Circle - Norwood, Massachusetts
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Source: Google Earth.
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Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Audit Observations & Potential Safety Enhancements
Observations:
Geometry
The acute angle of approach on each leg allows for
high entry speeds and requires drivers to look far
left over their shoulder for a gap in circulating
traffic. Drivers may assume the vehicle in front has
entered the rotary and then advance without
looking ahead. This condition, combined with
peak hour congestion, likely contributes to the high
number of rear-end crashes reported.
The large radius of the rotary and wide circulating lane also allow for high circulating speeds. This
condition decreases the perceived gaps available for entering vehicles. This may contribute to rear-end
crashes on entry if drivers are indecisive and stop short after beginning to proceed.
An audit member commented that the success of a rotary is dependent on entering speeds similar to
circulating traffic, good visibility, and available gaps; none of which exist at this location during peak
hours.
Queues
An audit member commented that the Nahatan Street and Route 1 southbound off-ramp approaches
experience queues in the afternoon peak hours. It was also noted that Neponset Street southbound
queues during the same period from the I-95 interchange up to one-quarter of the way around the rotary
(over a mile). Both of these conditions increase the difficulty of entering the rotary and increases delay
and frustration which, in turn, contributes to various crash types.
Pedestrian Accommodation
Visibility to and recognition of the crosswalk on
the Route 1 northbound on-ramp was raised as a
concern. The Town emphasized that their priority
is safe pedestrian crossings. However, there were
no reported pedestrian crashes during the threeyear review period.
Page 5
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
The width of the existing sidewalk on the bridge over Route 1, on the north side of the rotary, was
deemed to be too narrow for ease of maintenance by the Town, which hinders winter maintenance.
Visibility to/from Route 1 Ramps
It was noted that visibility of vehicles entering
Route 1 southbound from the rotary on-ramp is
poor due to the vertical difference in roadways, the
horizontal curve on Route 1 approaching the ramp,
and exacerbated by vegetation between the ramp
and mainline Route 1. This issue is further
exacerbated by the fact that there is not a dedicated
acceleration lane for vehicles entering Route 1. It
should be noted that any reported crashes in this
area may not have been included in the collected
data, as the study area focused on the rotary itself
and the immediate entry and exit points.
Drivers on Route 1 southbound, north of the
rotary, were observed to switch lanes at the last
minute to access the ramp to the rotary. Advance
visibility to the ramp is sometimes restricted by the
Nissan auto dealer parking vehicles in the grass
shoulder adjacent to Route 1. This condition is
exacerbated by limited/confusing guide signs; an
existing D6 guide sign reads “Norwood
Center/Canton/Next Right” where the next right is
actually the Nissan driveway. It should be noted
that any reported crashes in this area may not have
been included in the collected data, as the study
area focused on the rotary itself and the immediate
entry and exit points.
Visibility of the rotary circulating traffic is limited upon approach from Route 1, both northbound and
southbound, because of the bridge railing/fence and vegetation.
Signing
It was noted that the existing merge sign (W4-1L) on the Route 1 northbound off-ramp incorrectly
indicates that ramp traffic has priority and may be confusing to drivers, possibly contributing to rearend crashes.
In addition to the limited/confusing guide signs on Route 1 southbound approaching the rotary (noted
above), advance guide signage approaching the rotary on Route 1 northbound is also inadequate. There
is a large sign at the exit point, but the lack of advance signage means that drivers may not know where
the off-ramp leads and could cause last minute lane changes. It should be noted that any reported
crashes in this area may not have been included in the collected data, as the study area focused on the
rotary itself and the immediate entry and exit points.
Page 6
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Pavement Markings
It was suggested that it is not clear where the desired yield point is on each approach due to the lack of
pavement markings, contributing to drivers creeping into the rotary before committing to entering the
circulating traffic. This may increase the likelihood of rear-end crashes on entry and could be the cause
of angle crashes within the circulating the roadway if an entering vehicle creeps too far.
Route 1 Northbound Ramp Termini
A number of concerns were raised concerning the
Route 1 northbound on-ramp. MassDOT indicated
that the raised gore area was extended at some
point to restrict access to a commercial driveway.
The remaining merge area appears to be
insufficient for acceleration onto Route 1, and the
angle of entry makes it appear as though the ramp
has a dedicated lane entering Route 1. Also, the
desired yield point is not well defined. It should be
noted that any reported crashes in this area may not
have been included in the collected data, as the
study area focused on the rotary itself and the
immediate entry and exit points.
The Route 1 northbound off-ramp deceleration
area was also raised as a possible safety issue. The
deceleration taper from Route 1 to the off-ramp is
not well defined, given the proximity of the East
Cross Street entry to Route 1 and the provision of
an acceleration area for that roadway; a short
weave conflict is created in this area. This may
impact though traffic on Route 1 if vehicles
departing to the rotary begin deceleration within
the Route 1 through lane. A similar situation is
exists between the Route 1 southbound on-ramp
and East Cross Street on the west side of Route 1.
Again, it should be noted that any reported crashes
in these areas may not have been included in the
collected data, as the study area focused on the
rotary itself and the immediate entry and exit
points.
Page 7
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Potential Enhancements: 1. Realign approaches to the rotary to reduce the angle of entry (MassDOT’s preferred maximum
is 70 degrees) to improve visibility of circulating traffic without diverting attention from
vehicles immediately in front on entry and to reduce the occurrence of rear end crashes.
2. Install gore markings to visually narrow and better define approaches to the rotary, reducing
entry speeds.
3. Install pavement markings to better define and narrow the circulating roadway, reinforcing the
intent of single-lane circulation and reducing sideswipe and angle crashes.
4. Restripe crosswalks for greater emphasis (ladder or continental style) to better alert drivers to
crossings.
5. Install beacons (preferably pushbutton actuated) for the crosswalks on the Route 1 northbound
on-ramp and southbound off-ramp to alert drivers and provide improved visibility/recognition
of crossings.
6. Widen sidewalk across bridge over Route 1 on the north side of the rotary to improve
pedestrian accessibility and maintenance access for the Town.
7. Install merge warning signs on the Route 1 southbound on-ramp (W4-5) and on Route 1
southbound (W4-1R) approaching the ramp to provide advance notice of required merge
condition entering Route 1.
8. Clear vegetation between the Route 1 southbound on-ramp and Route 1 mainline to improve
visibility of oncoming traffic for vehicles merging onto Route 1 southbound from the rotary.
9. Widen Route 1 southbound to provide additional acceleration lane length for traffic entering
from the rotary.
10. Install “State Highway - No Parking” signs in the vicinity of the Nissan dealership on Route 1
southbound.
11. Install guide sign on Route 1 southbound at exit point to rotary and replace existing advance
guide sign to state “Second Right” rather than “Next Right”.
12. Clear vegetation obstructing view of circulating traffic from the Route 1 northbound and
southbound off-ramp approaches.
13. Replace merge warning sign on Route 1 northbound off-ramp with sign indicating correct
priority to clarify that circulating traffic within the rotary will have the right of way.
14. Install advance guide sign (D6) on Route 1 northbound approaching the rotary.
Page 8
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
15. Install YIELD lines and “YIELD” pavement markings on each approach to the rotary to
emphasize desired yield point on entry. However, MassDOT District 5 Traffic Operations has
expressed a maintenance concern with the “YIELD” pavement markings and requested that
they not be applied.
16. Install larger YIELD sign and YIELD line on the Route 1 northbound on-ramp to better define
the desired yield point. However MassDOT District 5 Traffic Operations has indicated that
larger signs are not warranted, as the existing sign is of the standard size used on State
Highway, and there is an existing “Yield Ahead” sign as well. It should also be noted that a
yield line is not allowed at this location per Section 3B.16 of the Massachusetts Amendments
to the 2009 MUTCD.
17. Review Route 1 northbound and southbound on-ramp acceleration/merge area and, if
warranted, widen to provide adequate transition.
18. Review acceleration/deceleration areas on Route 1 northbound and southbound at East Cross
Street and install wide dotted lane lines between East Cross Street and the ramps to/from the
rotary per MUTCD Figure 3B-10E.
19. Replace all faded signs within the rotary and on rotary approaches.
20. Evaluate right-turn bypass lanes on all approaches to the rotary and install on approaches
determined to be warranted based on evaluation. This could reduce congestion and associated
crashes, particularly rear ends.
21. Review alternatives and construct improvements along Neponset Street, south of the rotary, to
reduce congestion and associated queues extending into the rotary.
22. As part of future reconstruction efforts, evaluate reconfiguration of rotary for alternative form
of traffic control, such as traffic signals or roundabouts.
Page 9
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Summary of Road Safety Audit
Potential safety enhancements that were discussed during the RSA meeting and described in the previous
section are summarized in Table 2. For each potential enhancement, an estimate of the safety benefit
(“payoff”), approximate timeframe to implement, and cost are noted; the responsible party recommended
to implement the enhancement is also identified.
Safety payoff estimates are qualitative and categorized as low (<30%), medium (31% to 70%), or high
(>71%). The time frame to implement each enhancement is categorized as short-term (<1 year), mid-term
(1 to 3 years), or long- term (>3 years). The cost estimates are categorized as low (<$10,000), medium
($10,001 to $50,000), or high (>$50,001).
Enhancements where the developer is identified as the responsible agency and marked with an asterisk
have already been incorporated into the 25% Design Plans for improvements at this intersection, to be
constructed as part of the off-site mitigation related to the University Station mixed-use transit-oriented
development to be located off of University Avenue in Westwood, which are currently under review by the
MassDOT Highway Division.
Page 10
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Table 2. Potential Safety Enhancement Summary
Safety Payoff
Medium
Time Frame
Long-term
Cost
High
Responsible Agency
MassDOT
2. Install gore markings on rotary
approaches
Low
Short-term
Low
Developer*
Lane definition
3. Install markings to better define
circulating roadway
Low
Short-term
Low
Developer*
Visibility of pedestrian
crossings
4. Restripe crosswalks for greater
emphasis
Low
Short-term
Low
Developer*
Visibility of pedestrian
crossings
5. Install pedestrian actuated
beacons for pedestrian
crossings of Route 1 ramps
Low
Short-term
Medium
Developer
Sidewalk maintenance
6. Widen sidewalk on Route 1
bridge
7. Install merge warning signs for
Route 1 SB on-ramp
8. Clear vegetation to improve
visibility at Route 1 SB on-ramp
9. Widen Route 1 SB to provide
additional acceleration lane
length from the rotary
10. Install “State Highway-No
Parking” signs at Nissan dealer
Low
Long-term
Medium
MassDOT
Low
Short-term
Low
MassDOT
Low
Short-term
Low
MassDOT
Medium
Long-term
High
MassDOT
Low
Short-term
Low
MassDOT
Low
Short-term
Low
MassDOT
Safety Issue
Visibility on entry
Potential Safety Enhancement
1. Realign approaches to rotary
Lane definition
Visibility
Visibility
Visibility
Visibility
Driver guidance
11. Install/replace guide signs on
Route 1 SB approaching offramp to rotary
Page 11
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Table 2. Potential Safety Enhancement Summary (continued)
Safety Issue
Visibility
Safety Payoff
Potential Safety Enhancement
12. Clear vegetation at rotary
Low
approaches from Route 1 NB &
SB off-ramps
Time Frame
Cost
Responsible Agency
Short-term
Low
Developer
Confusing signage
13. Replace merge warning sign on
Route 1 NB off-ramp
Low
Short-term
Low
Developer
Driver guidance
14. Install advance guide sign on
Route 1 NB approaching rotary
Low
Short-term
Low
MassDOT
Low
Short-term
Low
Developer*
Low
Short-term
Low
MassDOT
Medium
Long-term
High
MassDOT
Low
Short-term
Low
MassDOT
Low
Short-term
Low
Developer
Medium
Long-term
High
MassDOT
Lack of definition of desired 15. Install YIELD lines and “YIELD”
pavement markings on rotary
yield point
approaches
Lack of definition of desired 16. Install larger YIELD sign and
YIELD line on Route 1 NB onyield point
ramp
Inadequate
acceleration/merge area
17. Widen Route 1 NB on-ramp to
provide adequate
acceleration/merge area
Ramp deceleration area not 18. Modify pavement markings on
Route 1 between East Cross St
well defined
and NB off-ramp
19. Replace all faded signs within
Driver guidance
20. rotary and on rotary
21. approaches
Congestion; queues
20. Install RT bypass lanes on
approaches where warranted
Page 12
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Table 2. Potential Safety Enhancement Summary (continued)
Safety Issue
Congestion; queues
Geometry; visibility
Potential Safety Enhancement
21. Construct improvements to
Neponset St, south of the
rotary, to add capacity and
reduce congestion/queues
22. Reconfigure rotary,
considering traffic signals or
roundabouts
Safety Payoff
Time Frame
Cost
Responsible Agency
Medium
Long-term
High
Town/MassDOT
High
Long-term
High
MassDOT
Page 13
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Appendix A. RSA Meeting Agenda
Modified Road Safety Audit
Westwood and Norwood
MEETING LOCATION: Champagne Meeting Room,
Westwood Memorial Building 50 Carby Street,
Westwood, MA
DATE: 9/8/14
TIME : 9:00 AM – 3:00 PM
Type of meeting:
Modified Road Safety Audit
Attendees:
Invited Participants to Comprise a Multidisciplinary Team
Session I 9:00 - 10:30 East Street Rotary – Westwood/District 6



Crash Summaries and Diagrams– provided in advance
Review aerial and on-the-ground images
Design Plans
Session II*10:30 – 1:30 Route 1 at Everett Street/University Ave & Route 1A at
Everett Street/Clapboardtree Street and Washington
Street/Everett Street – Westwood/Norwood/District 5



Crash Summaries and Diagrams– provided in advance
Review aerial and on-the-ground images
Design Plans
*Lunch will be provided during this session*
Session III 1:30 – 3:00
Neponset Rotary/Pendergast Circle – Norwood/District 5



Crash Summaries and Diagrams– provided in advance
Review aerial and on-the-ground images
Design Plans
G:\6629 Westwood, MA\RSA Presentation Materials\Westwood‐Norwood\RSA agenda.docx 1 Instructions for Participants:
 Before attending the RSA meeting on 9/8/2014, participants are encouraged
to drive through the intersection and complete/consider elements on the
RSA Prompt List with a focus on safety.
 All participants will be actively involved in the process throughout.
Participants are encouraged to come with thoughts and ideas, but are
reminded that the synergy that develops and respect for others’ opinions
are key elements to the success of the overall RSA process.
G:\6629 Westwood, MA\RSA Presentation Materials\Westwood‐Norwood\RSA agenda.docx 2 Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Appendix B. RSA Audit Team Contact List
RSA AUDIT TEAM CONTACT LIST
Project:
Neponset Rotary/Pendergast Circle - Norwood
Meeting Date:
9/8/14
Facilitator:
VAI
Place/Room:
Westwood Municipal Building,
Champagne Meeting Room
Name
Title
Company
Phone
E-Mail
Scott Thornton
Engineer
VAI
978-474-8800
sthornton@rdva.com
Jonathan Rockwell
Engineer
VAI
978-474-8800
jrockwell@rdva.com
Corey O’Connor
Traffic Safety Eng.
MassDOT, Boston
857-368-9638
corey.oconnor@state.ma.us
Lisa Schletzbaum
Traffic Safety Eng.
MassDOT Safety
857-368-9634
lisa.schletzbaum@state.ma.us
MassDOT, Dist. 6
857-368-6154
erin.kinahan@state.ma.us
Erin Kinahan
Paul Sicard
Sergeant
Westwood PD
781-328-1054
psicard@westwoodpd.org
Thomas Rebello
District 5 Traffic
Ops
MassDOT Dist. 5
508-884-4247
thomas.rebello@state.ma.us
Mark Ryan
Dir. Public Works
Norwood
781-760-8341
mryan@norwoodma.gov
Alex Duggan
Engineer
MassDOT
508-884-4396
alex.duggan@state.ma.us
Steve Boudreau
Engineer
VAI
978-474-8800
sboudreau@rdva.com
Road Safety Audit—Neponset Street Rotary/Pendergast Circle, Norwood, Massachusetts
Prepared by Vanasse & Associates, Inc.
Appendix C. Detailed Crash Data
Fu11clional De.\ign Report-
Unil•ersi~l'
Station De•·elopmenl- \'orwood, .llu.Hadmsells
NAHATAN
STREET
NEPONSET
STREET NEPONSET STREET ROTARY 40
9,30,37,42,44,49,51
~~
47t
~
5
12,13,16,20,22,
26,28,45,46,53
59,64,65
4,18,27,57,61 ,63,67
<>-sz
r'
tl
t
29
CRASH TYPE
_!
Angle (A)
Rear End (RE)
Head On (HO)
Fixed Object (FO)
Side Swipe (SS)
---­
•0
?" -----::::::
Turning Movement (TM) ___;-­
Lone Change (LC)
:=7.
Out of Control (OC)
-l(5L­
I
Pedest./Bicycle (P /B)
Not Reported (U)
~~ VanasSe & ASSOCiates, Inc.
Copyright @ 2014 by VAl.
All Rights Reserved.
.b
Collision Diagram
Neponset Street Rotary
Motor Vehicle Crashes
Neponset Rotary/Pendergast Circle
Road
Crash #
Date
Day
Time
Crash typee
Injury Statusa
b
Surface
Weatherc
Driver Contribution
Comments
hit inside curb
1
2
3
4
5
1/22/2010
1/26/2010
3/15/2010
3/20/2010
4/7/2010
Friday
Tuesday
Monday
Saturday
Wednesday
1:09:00
16:07:00
15:41:00
7:33:00
17:44:00
FIXED OBJECT
REAR‐END
REAR‐END
REAR‐END
REAR‐END
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
Icy
Dry
Wet
Wet
Dry
Dry
Dry
Snowy
Dry
Dry
distracted
Inattention
6
4/14/2010 Wednesday
2:41:00
REAR‐END
NO INJURY
Dry
Dry
other improper action
7
8
9
10
11
12
13
5/1/2010
5/5/2010
5/27/2010
5/27/2010
7/15/2010
7/30/2010
8/17/2010
16:42:00
16:22:00
11:00:00
12:23:00
16:45:00
17:52:00
14:33:00
REAR‐END
REAR‐END
REAR‐END
FIXED OBJECT
REAR‐END
REAR‐END
REAR‐END
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
disregarded traffic signs
Inattention
no improper driving
14
8/29/2010 Sunday
20:10:00
REAR‐END
NO INJURY
Dry
Dry
Inattention
11:40:00
17:55:00
13:17:00
12:58:00
17:31:00
REAR‐END
REAR‐END
SIDESWIPE
REAR‐END
REAR‐END
NO INJURY
NO INJURY
NO INJURY
INJURY
NO INJURY
Wet
Wet
Wet
Dry
Dry
Snowy
Wet
Wet
Dry
Wet
other improper action
8:11:00
REAR‐END
NO INJURY
Dry
Dry
other improper action
15
16
17
18
19
20
9/27/2010
10/1/2010
10/6/2010
10/8/2010
10/14/2010
Saturday
Wednesday
Thursday
Thursday
Thursday
Friday
Tuesday
Monday
Friday
Wednesday
Friday
Thursday
2/11/2011 Friday
other improper action
Inattention
other improper action
followed too closely
other improper action
other improper action
followed too closely
21
22
3/6/2011 Sunday
3/3/2011 Thursday
13:45:00
17:07:00
FIXED OBJECT
REAR‐END
NO INJURY
NO INJURY
Dry
Dry
Dry
Dry
Inattention
followed too closely
23
3/4/2011 Friday
18:34:00
REAR‐END
NO INJURY
Dry
Dry
Inattention
24
3/25/2011 Friday
16:03:00
REAR‐END
NO INJURY
Dry
Dry
Inattention
25
4/22/2011 Friday
12:33:00
REAR‐END
INJURY
Dry
Wet
followed too closely
26
27
28
29
30
31
32
33
34
4/27/2011
4/28/2011
5/21/2011
6/13/2011
6/14/2011
6/16/2011
6/16/2011
6/20/2011
7/12/2011
17:31:00
16:50:00
16:01:00
17:45:00
12:41:00
23:05:00
17:37:00
6:43:00
18:50:00
REAR‐END
REAR‐END
REAR‐END
REAR‐END
REAR‐END
REAR‐END
REAR‐END
SIDESWIPE
REAR‐END
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
Dry
Wet
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Snowy
Dry
Dry
Dry
Dry
Clear
Clear
Clear
other improper action
other improper action
followed too closely
other improper action
followed too closely
followed too closely
other improper action
other improper action
other improper action
35
7/14/2011 Thursday
17:02:00
REAR‐END
NO INJURY
Dry
Clear
followed too closely
36
37
38
39
8/3/2011
9/7/2011
9/10/2011
9/12/2011
15:08:00
16:50:00
22:55:00
12:20:00
REAR‐END
REAR‐END
REAR‐END
REAR‐END
NO INJURY
NO INJURY
NO INJURY
NO INJURY
Dry
Wet
Dry
Dry
Clear
Rain
Clear
Clear
followed too closely
followed too closely
followed too closely
Inattention
S:\Jobs\6629\nep‐rot
Wednesday
Thursday
Saturday
Monday
Tuesday
Thursday
Thursday
Monday
Tuesday
Wednesday
Wednesday
Saturday
Monday
THE USUAL (LOOKING LEFT AND WENT)
Formatted Table
mv1 cut off mv2 to take 95 ramp
RE crash on ramp due to speeding vehicle on rotary
car drove wrong way onto rotary
hit and run
3 ‐VEHICLE CRASH (2 WERE FOLLOWING FRONT VEH TOO CLOSELY)
3 car crash
moving forward w/o looking
mv2 overtook mv1 at approach
his foot slipped when trying to hit the breaks and kept going
3‐veh crash
Lightingd
# of Vehicles
Age of Driver 1
Age of Drivers 2/3
Dusk, Rd. not lit
Daylight
Daylight
Daylight
Daylight
1
2
2
2
2
69
85
30
24
63
‐‐
36
50
54
45
Daylight
2
59
36
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Dark, Lighted Roadway
Daylight
Daylight
Daylight
Daylight
Daylight
2
2
2
1
2
2
2
17
68
25
22
55
27
56
67
35
50
‐‐
54
56
27
2
23
53
2
2
2
2
2
39
17
50
43
25
66
22
18
26
25
Daylight
2
30
26
Daylight
Daylight
Dark, Lighted Roadway
Daylight
1
2
17
41
‐‐
45
2
18
57
2
27
68
Daylight
3
39
18/78
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
2
2
2
3
2
2
2
2
2
56
19
19
34
19
28
52
44
41
55
47
52
26/50
39
25
32
45
36
Daylight
2
26
36
Daylight
Daylight
Dusk, Rd.not lit
Daylight
3
2
2
3
57
36
22
NA
85
50
21
7820
8/21/2014
Motor Vehicle Crashes
Neponset Rotary/Pendergast Circle
Road
Crash #
Date
Day
40
41
42
9/29/2011 Thursday
10/6/2011 Thursday
10/10/2011 Monday
43
10/28/2011 Friday
44
45
46
47
48
49
50
51
11/3/2011
11/9/2011
12/1/2011
12/20/2011
12/22/2011
1/5/2012
1/22/2012
2/23/2012
52
Thursday
Wednesday
Thursday
Tuesday
Thursday
Thursday
Sunday
Thursday
3/31/2012 Saturday
Tuesday
Saturday
Monday
Tuesday
Thursday
Sunday
Friday
Saturday
Friday
Time
Crash typee
Injury Statusa
21:20:00
17:06:00
13:06:00
REAR‐END
REAR‐END
REAR‐END
INJURY
NO INJURY
NO INJURY
Wet
Dry
Dry
4:21:00
FIXED OBJECT
NO INJURY
18:33:00
14:42:00
21:28:00
16:20:00
22:16:00
13:03:00
14:53:00
13:20:00
REAR‐END
REAR‐END
REAR‐END
ANGLE
REAR‐END
REAR‐END
REAR‐END
REAR‐END
23:01:00
b
Weatherc
Driver Contribution
Comments
Rain
Clear
Clear
Inattention
no improper driving
no improper driving
3‐VEH CRASH
Icy
Rain
no improper driving
NO INJURY NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
Dry
Dry
Dry
Dry
Dry
Dry
Wet
Wet
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
no improper driving
other improper action
Inattention
no improper driving
Inattention
Inattention
followed too closely
Inattention
FIXED OBJECT
NO INJURY
Wet
Clear
no improper driving
17:03:00
12:53:00
15:52:00
17:19:00
9:43:00
13:18:00
15:22:00
11:07:00
14:29:00
REAR‐END
REAR‐END
REAR‐END
SIDESWIPE
REAR‐END
REAR‐END
REAR‐END
REAR‐END
REAR‐END
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
NO INJURY
Wet
Dry
Dry
Wet
Dry
Dry
Dry
Wet
Dry
Rain
Clear
Clear
Rain
Clear
Clear
Clear
Cloudy
Clear
followed too closely
followed too closely
other improper action
other improper action
Inattention
followed too closely
Inattention
Inattention
followed too closely
Surface
53
54
55
56
57
58
59
60
61
5/15/2012
5/19/2012
5/21/2012
5/22/2012
6/21/2012
6/24/2012
8/31/2012
10/20/2012
11/9/2012
62
11/13/2012 Tuesday
17:16:00
REAR‐END
NO INJURY
Dry
Cloudy
failure to yield right of way
63
64
65
11/23/2012 Friday
11/30/2012 Friday
12/5/2012 Wednesday
14:35:00
14:21:00
22:05:00
REAR‐END
REAR‐END
REAR‐END
NO INJURY
NO INJURY
NO INJURY
Dry
Dry
Dry
Clear
Clear
Clear
followed too closely
followed too closely
followed too closely
66
12/14/2012 Friday
18:20:00
REAR‐END
NO INJURY
Dry
Clear
Inattention
67
68
12/17/2012 Monday
12/22/2012 Saturday
10:57:00
10:41:00
REAR‐END
REAR‐END
NO INJURY
NO INJURY
Wet
Dry
Rain
Clear
Inattention
Inattention
a
hit and run
mc lost control
mv2 overtook mv1 at approach
mv2 hit cruiser as cruiser passed on right
Lightingd
# of Vehicles
Age of Driver 1
Age of Drivers 2/3
Dusk, Rd.not lit
Daylight
Daylight
Dark, Lighted Roadway
Dusk, Rd.not lit
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Dark, Lighted Roadway
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Dark, Lighted Roadway
Daylight
Daylight
Daylight
Dark, Lighted Roadway
Daylight
Daylight
3
2
2
19
36
89
2737
31
31
1
50
‐‐
2
2
3
2
2
2
2
2
42
25
27
58
39
48
40
47
29
42
2254
NA
26
27
57
50
1
49
‐‐
2
2
2
2
2
2
2
2
2
57
20
39
24
51
57
43
63
49
61
35
64
53
20
17
29
86
68
2
29
71
2
2
2
26
27
47
18
23
42
2
24
44
2
2
78
37
24
31
PD = Property Damage; PI = Personal Injury
b RS = Road Surface c
W = Weather d
L= Lighting; 1 = Daylight; 2 = Dawn; 3 = Dusk; 4 = Dark, Lighted Roadway; 5 = Dusk, Roadway Not Lighted; 6 = Dark, Unknown Roadway Lighting; 7 = Unknown
e
S:\Jobs\6629\nep‐rot
A = Angle; RE = Rear End; FO = Fixed Object; (P/B) = Pedestrian/Biker; SS = Sideswipe; HO = Head‐on
Formatted Table
8/21/2014
Count of Month
Crashes by Month
13.24%
14.00%
11.76%
12.00%
10.29%
10.29%
10.29%
10.00%
8.82%
6.00%
7.35%
7.35%
8.00%
5.88% 5.88%
5.88%
4.00%
Total
2.94%
2.00%
0.00%
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Month
Count of Day
Crashes by Day
30.00%
25.00%
25.00%
20.59%
20.00%
15.00%
11.76%
11.76%
13.24%
11.76%
10.00%
Total
5.88%
5.00%
0.00%
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Day
Crashes by Time of Day
50%
47%
45%
40%
35%
30%
25%
25%
Series1
20%
15%
10%
10%
5%
9%
6%
3%
0%
2‐6am
S:\Jobs\6629\nep‐rot
6‐10am
10‐2pm
2‐6pm
6‐10pm
charts
10‐2am
8/21/2014
Count of Crash typee
Crash Type
100.00%
90.00%
80.00%
70.00%
60.00%
50.00%
40.00%
30.00%
20.00%
10.00%
0.00%
86.76%
Total
7.35%
1.47%
ANGLE
4.41%
FIXED OBJECT
REAR‐END
0.00%
SIDESWIPE
(blank)
Crash typee
Count of Lightingd
Lighting Conditions
90.00%
80.00%
70.00%
60.00%
50.00%
40.00%
30.00%
20.00%
10.00%
0.00%
85.29%
Total
8.82%
Daylight
Dark, Lighted
Roadway
1.47%
4.41%
Dusk, Rd. not lit
Dusk, Rd.not lit
0.00%
(blank)
Lightingd
Count of Weatherc
Crash Weather
45.00%
42.65%
40.00%
35.29%
35.00%
30.00%
25.00%
Total
20.00%
15.00%
8.82%
10.00%
5.88%
5.00%
4.41%
2.94%
0.00%
0.00%
Clear
Dry
Rain
Wet
Snowy
Cloudy
(blank)
Weatherc
S:\Jobs\6629\nep‐rot
charts
8/21/2014
Count of Surfaceb
Crash Road Surface
80.00%
75.00%
70.00%
60.00%
50.00%
40.00%
Total
30.00%
22.06%
20.00%
10.00%
2.94%
0.00%
Dry
Wet
Icy
Surfaceb
Crash Driver Ages
30%
27%
25%
21%
20%
18%
16%
15%
10%
Series1
8%
8%
5%
2%
2%
70‐79
80+
0%
15‐19
S:\Jobs\6629\nep‐rot
20‐29
30‐39
40‐49
50‐59
60‐69
charts
8/21/2014