ROAD SAFETY AUDIT
West Main St./Main St. (Route 20) at
Church St., South St. and Hudson St.
Town of Northborough
October 2010
Prepared for:
Massachusetts Department of Transportation
Prepared by:
Howard/Stein-Hudson Associates
38 Chauncy Street
Boston, MA 02111
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Table of Contents Background ................................................................................................................................. 2
Project Data................................................................................................................................. 2
Project Location Description ..................................................................................................... 3
Road Safety Audit Observations ...............................................................................................6
Corridor-wide Issues ........................................................................................................................... 7
Intersection #1.
West Main Street (Route 20)/Church Street/ Bank of America Driveway
and Church Street/Pierce Street .......................................................................... 9
Intersection #2.
West Main Street/Main Street/South Street/Blake Street ................................. 15
Intersection #3.
Main Street (Route 20)/Patty Lane/ Hudson Street .......................................... 17
Potential Safety Enhancements ...............................................................................................19
List of Appendices
Appendix A.
Appendix B.
Appendix C.
Appendix D.
Appendix E.
75% Design Plans
RSA Meeting Agenda
RSA Audit Team Contact List
Detailed Crash Data
Additional Information
List of Figures
Figure 1.
Locus Map.............................................................................................................................. 4
List of Tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Participating Audit Team Members ....................................................................................... 3
Corridor-wide Enhancements ................................................................................................. 8
Intersection #1 Enhancements.............................................................................................. 13
Intersection #2 Enhancements.............................................................................................. 16
Intersection #3 Enhancements.............................................................................................. 18
Summary of Potential Safety Enhancements ....................................................................... 20
Page 1
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Background
The segment of West Main Street/Main Street (Route 20) between Church Street and Hudson Street in the
Town of Northborough, Massachusetts, has 2 intersection locations listed in the Top 5% of High Crash
Locations within the Central Massachusetts Regional Planning Commission (CMRPC) area. The
Massachusetts Department of Transportation (MassDOT) has determined that the Town would be eligible
to receive Highway Safety Improvement Program (HSIP) funding for reconstruction of this roadway
segment if a Road Safety Audit (RSA) were conducted and the proposed design incorporated safety
improvements identified in the RSA.
The RSA is intended to identify potential safety improvements that can be evaluated and included as part
of the design process for the reconstruction. The short-term, low-cost potential improvements should be
considered by the responsible agency for implementation prior to reconstruction.
The roadway segment is currently at the 75% design stage, funded by MassDOT. During the RSA, the
team reviewed the existing safety issues and the proposed improvements shown on the design plans (see
Appendix A) and discussed the safety benefits of the proposed improvements.
Project Data
The audit team conducted an RSA for the segment of West Main Street/Main Street (Route 20) between
Church Street and Hudson Street on Tuesday, October 26, 2010. The RSA agenda appears in Appendix
B. Table 1 lists the audit team members and their affiliations. Appendix C provides contact information
for all team members.
Page 2
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Table 1. Participating Audit Team Members
Audit Team Member
Kim Hood
William Lyver
Kara Buzanoski
Kevin Krasnecky
Jon Ding
Sujatha Mohanakrishnan
Fred Litchfield
David M. Durgin
John Diaz
Gil Genesse
Stephen Risotti
Eric Nascimento
Bonnie Polin
Lisa Schletzbaum
Tim White
Keri Pyke
Joe SanClemente
Agency/Affiliation
Assistant Town Administrator, Town of Northborough
Northborough Police Department
DPW Northborough
Central Massachusetts Regional Planning Commission
Central Massachusetts Regional Planning Commission
Central Massachusetts Regional Planning Commission
Town Engineer, Town of Northborough
Northborough Fire/EMS
Greenman-Pedersen, Inc.
MassDOT – District 3
MassDOT – District 3
MassDOT – District 3
MassDOT Highway Division Safety Section
MassDOT Highway Division Safety Section
Federal Highway Administration
Howard/Stein-Hudson Associates
Howard/Stein-Hudson Associates
Project Location Description
The segment of West Main Street/Main Street (Route 20) between Church Street and Hudson Street is
located in the Town of Northborough, as shown in the aerial image in Figure 1. Within the study area,
Route 20 serves as a major east–west roadway through the downtown and consists primarily of
commercial uses along the north and south side of the roadway. The intersections of West Main Street
(Route 20)/Church Street/Bank of America Driveway and Main Street (Route 20)/South Street (Route
135)/Blake Street operate under full traffic signal control. Railroad tracks run north – south across Main
Street between Blake Street and Patty Lane; the railroad crossing is controlled by gates and traffic signals.
According to RSA team members, the railroad tracks are infrequently used (only approximately 4 times
per week).
Prior to the RSA, in order to begin assessing possible safety issues, the team reviewed collision diagrams
and a crash detail summary based on crash records supplied by the Northborough Police Department.
Appendix D provides the detailed intersection crash data from January 1, 2007, through July 14, 2010.
Speed regulations and traffic volume data are presented in Appendix E.
Page 3
Road Safety Audit–West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
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Locus Map
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Figure 1.
Northborough
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Library
Library
RSA Study Area
RSA Study Area
Not to scale.
Howard/Stein-Hudson Associates, Inc.
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
The RSA team evaluated the segment of West Main Street/Main Street (Route 20) between Church Street
and Hudson Street as a whole and paid particular attention to 3 intersection locations that form the
junctions of the following roadways, which are categorized according to MassDOT Office of
Transportation Planning functional classifications:
West Main/Main Street (Route 20) is an urban principal arterial and falls under MassDOT jurisdiction.
West Main Street is an east–west roadway and is dedicated as Route 20 between the Southwest Connector
and South Street (Route 135) in Northborough. Main Street, also designated Route 20, runs east–west
between South Street (Route 135) and the Marlborough City line. Route 20 provides connection to I-495
(Exit 24) in Marlborough and Route 9 in Shrewsbury. Within the study area, West Main Street/Main
Street generally consists of 2 lanes in each direction and the speed limit is 30 miles per hour (mph) per the
speed regulations.
Church Street is an urban minor arterial and is owned by the Town. Church Street generally runs
northwest–southeast between West Main Street and the Boylston Town line and provides access to I-290
at Exit 24. Church Street consists of 1 travel lane in each direction and the speed limit is posted at 30
mph in the vicinity of the study area.
Pierce Street is an urban minor arterial and is owned by the Town. Pierce Street runs northeast–
southwest between Church Street and Hudson Street and consists of one travel lane in each direction. The
Northborough Fire Department is located on Pierce Street approximately 200 feet northeast of Church
Street.
South Street (Route 135) is an urban minor arterial and is owned by the Town. South Street runs north–
south between West Main Street/Main Street and the Westborough Town line. South Street generally
consists of 1 travel lane in each direction. South Street provides connections to Route 9 and Route 30 in
Westborough.
Blake Street is a local roadway owned by the Town. Blake Street runs north–south between Main Street
and Pierce Street. Blake Street consists of 1 travel lane in each direction; however, is restricted to oneway northbound travel at the intersection with Main Street.
Patty Lane is a local roadway owned by the Town and consists of one travel lane in each direction. Patty
Lane intersects Main Street from the south and has no outlet.
Hudson Street is an urban collector owned by the Town. Hudson Street runs north–south between the
Marlborough City line and Main Street and consists of one travel lane in each direction.
Page 5
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Road Safety Audit Observations
Based on field observations on Tuesday, October 26, 2010, and subsequent discussions, the RSA team
determined that the segment of West Main Street/Main Street (Route 20) between Church Street and
Hudson Street has the following issues that affect safety:







Intersection geometry;
Lane usage;
Traffic control;
Signage clutter and clarity;
Sight distance;
Limited pedestrian accommodations; and
Limited bicycle accommodations.
The following sections describe in more detail the safety issues and enhancements determined during
the RSA. These safety enhancements are also discussed as they relate to both the existing conditions and
the design plans which are currently at the 75% design level. Several of these issues require further study
and engineering judgment to determine the feasibility of implementing enhancements to address them.
Page 6
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Corridor-wide Issues
Observations:
The RSA team noted the following corridor-wide observations:
Moderate bicycle activity within the
study area was noted by RSA team
members; however, bicycle
accommodations are not currently
provided along the West Main
Street/Main Street corridor.
According to the crash data from
January 1, 2007, through July 14,
2010, 3 crashes occurred within the
segment of West Main Street/Main
Street between Church Street and
Hudson Street involving a cyclist:
one at the intersection of West Main
Street (Route 20)/Church
Bicycle accommodations are not provided within the
Street/Pierce Street/Bank of
corridor.
America Driveway; one at Main
Street/CVS Pharmacy Driveway (approximately 100 feet east of Church Street); and one at Main
Street/Hudson Street/Patty Lane. The lack of dedicated bicycle accommodations and/or bicycle
signage likely contributed to these crashes.
RSA team members noted that during peak commuter periods motorists often block the
intersections within the corridor between signal phases, in particular West Main Street (Route
20)/Church Street/Pierce Street/Bank of America Driveway, which adds to vehicle congestion
and driver frustration through the corridor. RSA team members discussed whether “Do Not Block
Intersection” signage and pavement markings could be installed to facilitate ongoing enforcement
efforts throughout the corridor. Team members also questioned how the pavement markings
would work with other markings, proposed as part of the new design, and if they would
potentially add to confusion at the intersections.
The RSA team mentioned that access management is an issue along the corridor due to the
number of closely spaced driveways. The Town’s design team looked at numerous options to
change the access to the businesses to the rear during the concept design stage, but ultimately
concluded that they were not feasible.
An RSA team member noted that State Law requires school buses to stop at all railroad crossings
and that there is currently no signage to inform motorists.
Page 7
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
An RSA team member also noted that travel speed may have contributed to the crash history
along the corridor. Motorists traveling along Route 20 through Northborough, unfamiliar with
the area, may not be aware that they are entering a commercial district where they need to reduce
their speed.
Enhancements:
Table 2 summarizes the proposed corridor-wide enhancements
Table 2. Corridor-wide Enhancements
Proposed Enhancement
1.
2.
3.
Comments
Included in Current Design
Provide bicycle accommodations within the study area
Bicycle accommodations are currently included in
(i.e., shared lanes and/or within a 4-foot shoulder,
the design within the study area and have been
bicycle detection at signals, signage, and pavement
reviewed by MassDOT’s Bike and Pedestrian
markings) in accordance with the 2006 Project
Coordinator.
Development and Design Guide, as appropriate.
Not Included in Current Design
Install Do Not Block Intersection (R10-7) signage at the
Designer to work with MassDOT to evaluate the
study area intersections, as appropriate, to reduce
congestion and support enforcement efforts, and also
appropriateness of signage and markings.
Consider impacts on sign clutter.
consider the appropriateness of installing associated
Do Not Block Intersection pavement markings
In accordance with 540 CMR 7.05 5(d), effective
June 1, 2004, any bus entering service in the
Commonwealth of Massachusetts shall display a
sign that states “Bus Stops at all R/R/ Crossings.”
Also, in accordance with U.S. Department of
Transportation Federal Motor Carrier Safety
Administration laws, per 398.4 q(3), all vehicles
Consider the appropriateness of installing signage in
carrying hazardous materials shall display a sign
advance of the railroad crossing along Main Street to
on the rear reading, “This Vehicle Stops at Railroad
alert motorists that school buses are required to stop to
Crossings.”
help avoid potential rear-end collisions.
According to the crash history at this location, only
one rear-end collision was reported that involved
the railroad crossing.
The MUTCD currently does not recommend
supplemental signage.
4.
5.
Consider the appropriateness of installing advance
warning signage alerting motorists traveling along
Route 20 that they are entering a commercial district.
Other
Continue to evaluate access management along the
Route 20 corridor as part of future planning efforts and
as adjacent properties are developed/redeveloped.
Consolidation of the number of curb cuts along Route
20 will reduce friction along the corridor and contribute
towards improving overall safety.
Consider sign clutter.
Town of Northborough to consider/evaluate over
long-term.
Page 8
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Intersection #1. West Main Street (Route 20)/Church Street/
Bank of America Driveway and Church Street/Pierce Street
Observations:
The intersection of West Main Street (Route 20)/Church Street/Bank of America Driveway is a 4way signalized intersection. In addition, Pierce Street intersects Church Street from the northeast,
only approximately 40 feet north of the intersection with West Main Street, and operates under
stop sign control. Given the proximity of these two intersections, they have been evaluated
together. Church Street intersects West Main Street from the northwest at an obtuse angle and
has a median island separating northwest-bound and southeast-bound traffic at the intersection
approach. The Bank of America Driveway intersects West Main Street from the south, offset
approximately 30 feet east of Church Street.
From January 1, 2007, through July 14, 2010, 36 crashes were reported at this location. Of the 36
crashes, 9 (or 25%) were not the result of improper action by motorists (e.g., road conditions,
sideswipe to avoid rear-end collision, etc.) while 27 (or 75%) were caused by improper turns,
inattention, failure to yield, or other improper actions. The RSA team noted several deficiencies
related to intersection geometry, traffic signal control, lane usage, and signage that may
contribute to crash experience at this location including the following:
Intersection Geometry:
Fire Truck Maneuvers – Pierce Street is physically restricted to right-in/right-out movements by
the presence of a median island and scored concrete on Church Street. The turning restrictions
for general traffic are in place in
an effort to reduce traffic
conflicts between the closely
spaced intersections of West
Main Street/Church Street and
Church Street/Pierce Street.
However, these physical
restrictions make it difficult for
the Northborough Fire
Department, which is located on
Pierce Street, to turn left onto
Church Street to access Route 20
during an emergency – this
maneuver is required due to the
limitations in the roadway
network for the Fire Department
to reach points north, south, and
Fire Trucks have difficulty maneuvering around median
west of the Fire Station. RSA
island and scored concrete on Church Street.
team members indicated that fire
Page 9
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
trucks destined for Route 20 currently turn left onto Church Street and then need to travel the
wrong way on Church Street (around the east side of the median) to make the turn onto West
Main Street (Route 20).
Mobil Station Access – RSA team members noted that vehicle queues at the Church Street
southeast-bound approach often block vehicles traveling northwest-bound on Church Street that
are trying to turn left into the Mobil Station. As a result, these vehicles can cause queue build-up
that extend into the West Main Street/Church Street intersection, adding to congestion and thus
driver frustration. According to the crash data, one crash was reported involving a vehicle
traveling northbound on Church Street and a second vehicle exiting the Mobil Station. The
presence of vehicle queues
along Church Street
southbound may have
reduced sight lines for the
motorist exiting the Mobil
parking lot which could
have contributed to this
crash. Two angle crashes
were also reported both
involving vehicles making a
left turn into the Mobil
Station parking lot from
Church Street northwestbound lane and vehicles
traveling southeast-bound
through along Church
Street. RSA team members
Vehicles turning into Mobil Station Driveway block traffic on
Church Street northwest-bound.
noted that the driveway on
Church Street may be
necessary to accommodate large fuel deliveries.
West Main Street Merge Area – Of the 36 crashes reported at this location, 3 crashes (or 8%)
were sideswipe-same direction and occurred in the West Main Street westbound direction
adjacent to the Mobil Station. RSA team members commented that the West Main Street merge
area from 2 lanes to 1 lane may not be long enough and could have contributed to the occurrence
of these crashes.
Traffic Signal Control/Lane Use:
West Main Street – Designated turning lanes and protected turn phases are currently not provided
at the West Main Street eastbound or westbound approaches. RSA team members noted that the
four-lane cross-section makes it difficult for motorists to determine when it is safe to turn.
According to crash records, 5 of the 36 crashes reported at this intersection (or 14%) were rearend type involving vehicles traveling along West Main Street westbound. RSA team members
Page 10
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
noted that these crashes may be the result of motorists suddenly stopping to allow West Main
Street eastbound left-turning vehicles to pass through the intersection, which are then rear-ended
by unsuspecting motorists behind them. Crash records also indicate 3 sideswipe collisions (2 in
the eastbound direction and 1 westbound) that may be the result of motorists attempting to
maneuver around vehicles waiting in the travel lane for a safe gap to turn.
Bank of America Driveway – One angle crash was reported that involved a vehicle making a left
turn onto West Main Street from the Bank of America Driveway and a second vehicle from
Church Street southeast-bound. The crash report indicates that the light was green for both
approaches and that there was no improper driving by either motorist that contributed to the
crash. The existing signal phasing at the intersection currently provides the Bank of America
Driveway with a short lead phase to allow left-turns onto West Main Street westbound before
changing to a permitted phase concurrent with Church Street southeast-bound. However, signage
and vehicle indications (i.e., a left-turn arrow with a Left Turn Yield on Green sign [R10-12]) are
not provided to warn
motorists exiting the Bank
of America Driveway that
they only have a short
protected left-turn phase
and that they may need to
yield on green when Church
Street southeast-bound is
given the green light. In
addition, due to the offset
alignment of the Bank of
America Driveway, and the
large plantings on the center
island, motorists turning left
onto West Main Street from
Church Street may not
expect or readily see
Offset alignment of Bank of America Driveway may add to driver
vehicles exiting the Bank of
confusion at the intersection.
America driveway during
the same signal phase.
Signage:
Sign Clutter – RSA team members noted that signs for local businesses on the Church Street
median island add to sign clutter and reduce sight distance between vehicles traveling along West
Main Street westbound and vehicles making a right-turn from Church Street southbound onto
West Main Street.
Warning Signage – A pedestrian crossing warning sign (W11-2) and supplemental PED XING
plaque are provided along the West Main Street eastbound approach approximately 150 feet west
Page 11
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
of the intersection with Church Street; visibility of the sign is reduced by the presence of trees
along the sidewalk. A second pedestrian warning sign (W11-2) is also provided at the crosswalk
at the West Main Street eastbound approach at Church Street. RSA team members noted that
these signs are unnecessary due to the presence of the traffic signal at the intersection and only
add to sign clutter.
Regulatory Signage – At the intersection of Church Street/Pierce Street, the stop sign (R1-1) at
the Pierce Street southwest-bound approach is located behind a tree and is not visible. In
addition, the No Left Turn sign at the Pierce Street southwest-bound approach is non-standard per
MUTCD.
Design-Specific Comments:
The RSA team noted the following with respect to the proposed 75% Design Plans:
1. The RSA team noted that the proposed receiving lane along West Main Street eastbound
is only 22 feet in width, which may not be wide enough to facilitate a double left-turn
from Church Street southeast-bound.
2. The proposed design calls for the addition of a West Main Street eastbound left-turn
pocket with protected/permissive phasing. The RSA team noted that the addition of a
left-turn pocket and protected phase would enhance safety at the intersection. However,
it was noted that the designer should evaluate potential interactions between West Main
Street eastbound left-turning vehicles with West Main Street westbound through traffic
and consider the safety benefits and operational impacts of making the West Main Street
left-turn phase protected only. The West Main Street eastbound left-turn pocket is
developed along a horizontal curve with limited right-of-way. There is no painted island
on the opposite side of the intersection, which creates a “pinch point” in the middle of the
intersection for eastbound left-turning vehicles waiting for a gap in the westbound
through. As such, permissive eastbound left-turning vehicles may encroach on the
westbound through lane. If permissive phasing is deemed appropriate as part of the final
design, the RSA team noted that it may be beneficial to add double yellow dashed lines,
or other appropriate pavement marking, through the intersection to delineate the West
Main Street westbound through travel lanes.
3. The proposed design calls for the redesign of the median island on Church Street. The
RSA team noted that the proposed median partially extended into the intersection which
may inhibit left-turns into Church Street from West Main Street eastbound. However, the
RSA team members also noted that the proposed design may also help to slow vehicles
turning into Church Street which may improve safety.
4. The RSA team noted that cyclists riding along West Main Street eastbound may be
confused by the proposed pavement markings adjacent to the modified center island at
the Bank of America Driveway that are intended to define the vehicle travel paths for
vehicles around the island.
Page 12
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Enhancements:
Table 3 summarizes the proposed enhancements for Intersection #1: West Main Street (Route
20)/Church Street/ Bank of America Driveway and Church Street/Pierce Street.
Table 3. Intersection #1 Enhancements
Proposed Enhancement
1.
2.
3.
Comments
Included in Current Design
Current design also includes signal pre-emption
Modify the median island on Church Street to facilitate
and advanced signals to stop Church Street
emergency vehicle access onto Church Street (leftsoutheast-bound traffic to further facilitate
turns and right-turns) from Pierce Street.
emergency vehicle access.
Evaluate merge area along West Main Street
westbound, adjacent to the Mobil station, to ensure that Current design includes lengthened merge area.
Designer to ensure consistency with MassDOT’s
it is meets current standards per MassDOT’s Project
Development & Design Guide and lengthen merge
Project Development & Design Guide.
area as appropriate.
Install left-turn pocket at West Main Street eastbound
Left turn pocket is included in current design.
approach.
4.
Reconfigure Bank of America exit driveway to allow for
right turns out only.
Included in design.
5.
Remove unnecessary pedestrian warning signage
(W11-2) and supplemental plaques located along the
West Main Street eastbound approach.
Included in design.
Relocate stop sign (R1-1) at the Pierce Street
southwest-bound approach so that it is visible to
motorists in relation to the existing tree.
Included in design.
Replace the existing “No Left Turn” sign at the Pierce
Street southwest-bound approach with a No Left Turn
sign (R3-2) according to current MUTCD standards.
Included in design.
6.
7.
8.
9.
Ensure that vehicles, and trucks, making a left-turn
onto Church Street from West Main Street eastbound
are able to effectively maneuver around the proposed
Designer has indicated that a vehicle as large as a
reconstructed median island on Church Street. The
WB-50 can be accommodated.
designer should also consider the safety benefits of
slowing down turning vehicles that the island may
create.
Not Included in Current Design
Prohibit left-turns from Church Street northbound into
the Mobil driveway by installing a No Left Turn sign
Designer to incorporate.
(R3-2).
Page 13
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Proposed Enhancement
10.
11.
12.
13.
14.
15.
16.
Comments
In order to provide a sign on private property an
easement would be needed to not only install the
Consider the appropriateness of adding signage to
sign but also to gain access to the point at which
remind motorists of the rear exit in the Bank of America
the sign would be installed. This may be
parking lot to help reduce driveway volume on West
considered whereby the Town of Northborough
Main Street.
assumes responsibility to approach the property
owner to discuss and gain an easement so that the
sign can be installed on private property.
Review the proposed 22-foot receiving lane along West
Designer to review and ensure adequate receiving
Main Street eastbound to ensure that it meets turning
radius requirements for the double left-turn lane and is width is available to safely accommodate the dual
consistent with design standards and engineering
left turn lanes as per best practice
design.
judgment.
Consider potential interactions between West Main
Street eastbound left turning vehicles and West Main
Street westbound through traffic and consider the
safety benefits and operational impacts of making the
West Main Street eastbound left-turn phase protected
only.
As part of the RSA process, the designer has
agreed to revise the signal phasing to provide
“protected only” left turn phasing based on
comments from the RSA team and concerns about
permissive left turning vehicles encroaching on the
eastbound through lane or potentially blocking one
of the westbound thru lanes.
Consider the appropriateness of adding a double
yellow dashed line, or other appropriate pavement
No longer necessary with implementation of
marking, through the intersection to delineate the West Enhancement #12.
Main Street westbound through travel lanes.
The designer has agreed to change pavement
Review the proposed pavement markings adjacent to
markings from 8” to 6” to be consistent with all
the center island at the Bank of America Driveway to
other edgelines. The markings are required to
ensure that their purpose is clear for both cyclists and
emphasize the right in-right out movement for the
motorists to the extent possible.
bank driveway. The plans have also been reviewed
by MassDOT’s Bike and Pedestrian Coordinator.
Other
Town of Northborough should remove
Reduce sign clutter on Church Street median island.
unauthorized private advertising signage from
island.
Consider implementing traffic signal changes so the
Town of Northborough should work with MassDOT
Bank of America driveway northbound approach and
District 3 to consider the safety benefits of
Church Street southeast-bound approach have
implementing in the short-term (prior to the
separate phases to improve safety.
reconstruction of the intersection).
Page 14
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Intersection #2. West Main Street/Main Street/South
Street/Blake Street
Observations:
The intersection of West Main Street/Main Street/South Street/Blake Street is a four-way
signalized intersection. South Street, which is designated as Route 135, intersects West Main
Street/Main Street from the south. Blake Street intersects Main Street from the north; offset
approximately 50 feet to the east of South Street. Blake Street is restricted to one-way
northbound travel at the intersection with Main Street. An at-grade railroad crossing is located
approximately 100 feet east of the intersection.
According to crash records, 27 crashes occurred at this intersection location from January 1,
2007, through July 14, 2010. Crashes were the result of improper turns or other action (15, or
56%); driver failure to yield right of way (8, or 29%); or inattention (4, or 15%).
Of the 27 crashes, 2 crashes were angle type involving motorists making a left-turn into Blake
Street from Main Street eastbound. RSA team members noted that the vehicle queues at Main
Street westbound often make it difficult for eastbound vehicles to make a left turn. In addition,
the absence of a dedicated turning lane combined with the wide 4-lane cross-section may
contribute to driver error at this location as it can be difficult for motorists to judge when there is
an adequate gap to turn safely.
RSA team members noted that the right-turn only pavement markings and signage are not
provided at the West Main Street eastbound right-turn lane. Crash records indicate that 5 angle
crashes (or 19%) involved
vehicles making a leftturn onto South Street
from Main Street
westbound and vehicles
traveling along West
Main Street eastbound.
Confusion over lane
usage combined with the
wide cross-section of
West Main Street may
have contributed to these
crashes.
During the RSA, the team
noted several groups of
school children, destined for the Northborough House of Pizza, crossing
Students crossing Main Street at the railroad crossing.
Page 15
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Main Street at the railroad crossing rather than using the crosswalk at South Street. No
crosswalks are currently provided at the railroad crossing.
The RSA team noted that wayfinding signage for Route 135 (South Street) is not provided along
West Main Street eastbound or Main Street westbound.
Enhancements:
Table 4 summarizes the proposed enhancements for Intersection #2: West Main Street/Main
Street/South Street/Blake Street.
Table 4. Intersection #2 Enhancements
Proposed Enhancement
1.
2.
Comments
Included in Current Design
Included. Signal phasing allows for protected–
permissive left turns.
Evaluate the feasibility of providing a left-turn pocket at The Designer has indicated that the permissive
the Main Street westbound approach and providing a
movement is necessary for capacity issues and the
protected left-turn signal phase to improve safety.
phasing has been approved by MassDOT Boston
and District 3 Traffic Sections. Protected only
phasing would result in queues extending beyond
the short left turn pocket..
Add lane use pavement markings and signage at the
West Main Street eastbound approach according to
Included in design.
MUTCD specifications, as appropriate.
3.
Prohibit left turns into Blake Street from Main Street
eastbound by installing No Left Turn sign (R3-2) and
evaluate the feasibly of modifying the entrance to Blake Included in design.
Street to allow for right-turns only.
4.
Install advance wayfinding signage for Route 135 along
Included in design.
West Main Street/Main Street.
5.
Other
Consider providing a pedestrian education program
through the Northborough Police Department with local Town of Northborough Police Department should
schools to help improve pedestrian safety awareness
consider this program in the short-term.
among students.
Page 16
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Intersection #3.
Hudson Street
Main Street (Route 20)/Patty Lane/
Observations:
The intersection of Main Street (Route 20)/Patty Lane/Hudson Street is a four-way
unsignalized intersection. Hudson Street and Patty Lane operate under stop control and the Main Street eastbound and westbound approaches are uncontrolled movements. According to traffic count data at this intersection, left turns onto Hudson Street from Main Street eastbound are heavy (approximately 300 vehicles per hour) during the weekday
morning and evening peak periods. Sight lines east of Hudson Street are limited by a
horizontal/vertical curve and a stone retaining wall.
Of the 40 crashes that occurred
at this intersection, 9 crashes (or 23%) were angle/left-turn collisions involving Main Street
westbound and Hudson Street southbound traffic. During the RSA, team members noted that
sight lines to the east of the intersection are limited due to the presence of a horizontal and
vertical curve combination in the alignment of Main Street, and the presence of a stone retaining
wall, which may be a contributing factor to these crashes.
7 angle crashes were reported involving Main Street eastbound traffic with Main Street
westbound left-turning vehicles. RSA team members noted that these crashes may be the result
of the wide cross-section and driver uncertainty of when it is safe to turn. For example, the
“double-threat” situation, where motorists in one lane along Main Street eastbound may stop to
let a vehicle traveling westbound make a left turn, but the second vehicle traveling eastbound in
the other lane unknowingly does not stop.
Pedestrian crosswalks are not provided across Main Street at this intersection.
RSA team members noted that the Dead End sign (W14-1) posted on the back of the Stop Sign
(R1-1) on Patty Lane does not meet current standards per MUTCD section 2A.16.
Page 17
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Design-Specific Comments:
While reviewing the proposed 75% Design Plans, the RSA team noted that the proposed lagging
left-turn phase for Main Street eastbound (which is a heavy movement during the peak periods)
could result in worsened queuing conditions along Main Street that could interact with the
railroad crossing and the adjacent intersection at Blake Street/South Street.
Enhancements:
Table 5 summarizes the proposed enhancements for Intersection #3: West Main Street/Main
Street/South Street/Blake Street.
Table 5. Intersection #3 Enhancements
Proposed Enhancement
1.
2.
3.
4.
5.
Comments
Included in Current Design
Evaluate the feasibility/appropriateness of installing a
traffic signal to provide controlled movements at the
Included in design.
intersection.
Consider the feasibility of relocating the stone retaining
Included in design.
wall located along the north side of Main Street to
improve sight lines east of the intersection.
Install pedestrian crosswalks and designated
Included in design
pedestrian phase across Main Street as part of signal
installation.
Re-post Dead End sign (W14-1) located at Patty Lane
Included in design.
onto a separate post.
Not Included in Current Design
As part of the RSA process, the Designer
evaluated this issue and noted that the eastbound
left turn movement is a “protected-permissive”
movement due to the demand for the left turn to
Hudson Street. Because of the short storage
length, running this phase as “protected” only
would create major congestion. The westbound
Evaluate the feasibility of providing a leading vs.
left turn is lower demand and is proposed as
lagging left-turn phase for the Main Street eastbound
“protected” only phasing. The two left turn
left-turn movement. Consider the impacts on safety
movements cannot be run simultaneously due to
and congestion throughout the corridor and the impacts
the configuration of the intersection. Modifying the
on the railroad crossing.
phasing to “lead” the eastbound left turn while
running the movement as “protected-permissive”
and then “lagging” the westbound left turn
movement would create the “left turn trap” effect for
eastbound left turning vehicles. This would reduce
safety and increase the potential for crossing
movement accidents.
Page 18
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Potential Safety Enhancements
Based on its observations and discussions, the RSA team identified the issues and possible enhancements
that could improve safety along the segment of West Main Street/Main Street between Church Street and
Hudson Street in Northborough, Massachusetts. Many of the enhancements identified during the RSA
have already been evaluated as part of the design process. Although further design work or consideration
may be necessary to determine the feasibility of making some of the improvements to the corridor.
Short-term enhancements include:

Reduce sign clutter;

Prohibit movements that cause vehicular conflicts (e.g., left-turn into Mobil on Church Street, left
turn into Blake Street from Main Street); and

Consider providing a pedestrian education program to local schools.
To enhance the safety of the intersection, the long-term enhancements are to:

Improve sight distance;

Improve intersection control;

Improve signage;

Improve lane use markings;

Improve pedestrian accommodations; and

Improve bicycle accommodations.
Table 6 summarizes these safety issues, possible enhancements, estimated safety payoff, time frame, cost,
and responsibility. Safety payoff estimates are based on engineering judgment and are categorized as
low, medium, and high. The time frame is categorized as short-term (<1 year), mid-term (1 to 3 years), or
long-term (typically >3 years). Long-term improvements are typically considered to be substantial
improvements with an expected time frame for implementation greater than 3 years; however, if
improvements to the study area are selected as an HSIP project, then redesign of the intersection would be
advertised for construction sooner. The costs are categorized as low (<$10,000), medium ($10,001 to
$50,000), or high (>$50,000).
It is the responsibility of the Town of Northborough to ensure that the designer incorporates the relevant
safety enhancements identified as part of this RSA. The RSA is intended to identify potential safety
improvements that can be evaluated and included as part of the design process for the reconstruction. The
short-term low-cost potential improvements should be considered by the responsible agency for
implementation prior to reconstruction.
Page 19
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Table 6. Summary of Potential Safety Enhancements
Safety Issue
Corridor-wide Issues
Intersection #1. West
Main Street (Route
20)/Church Street/
Bank of America
Driveway and Church
Street/Pierce Street
Safety Enhancement
Provide bicycle accommodations within the study area (i.e., shared
lanes and/or within a 4-foot shoulder, bicycle detection at signals,
signage, and pavement markings) in accordance with the 2006
Project Development and Design Guide, as appropriate.
Install Do Not Block Intersection (R10-7) signage at the study area
intersections, as appropriate, to reduce congestion and support
enforcement efforts, and also consider the appropriateness of
installing associated Do Not Block Intersection pavement markings
Consider the appropriateness of installing advance warning
signage alerting motorists traveling along Route 20 that they are
entering a commercial district.
Continue to evaluate access management along the Route 20
corridor as part of future planning efforts and as adjacent
properties are developed/redeveloped. Consolidation of the
number of curb cuts along Route 20 will reduce friction along the
corridor and contribute towards improving overall safety.
Modify the median island on Church Street to facilitate emergency
vehicle access onto Church Street (left-turns and right-turns) from
Pierce Street.
Evaluate merge area along West Main Street westbound, adjacent
to the Mobil station, to ensure that it is meets current standards per
MassDOT’s Project Development & Design Guide and lengthen
merge area as appropriate.
Install left-turn pocket at West Main Street eastbound approach
and provide a protected signal phase.
Reconfigure Bank of America exit driveway to allow for right turns
out only.
Safety
Payoff
Time
Frame
High
Cost
Responsibility1
Status
Longterm
Mid
-
Included in
design
Low
Shortterm
Low
Designer
Needs further
evaluation in
next submittal
Low
Shortterm
Low
Designer
Need further
evaluation in
next submittal
Low
Longterm
Low
Town of
Northborough
For long-term
consideration
High
Longterm
Medium
-
Included in
design
High
Longterm
Low
-
Included in
design2
High
-
Medium
-
High
Medium
Longterm
Longterm
Included in
design
Included in
design
Notes:
1. It is the responsibility of the Town of Northborough to ensure that the designer incorporates the relevant safety enhancements identified as part of this RSA.
2. The designer shall ensure that all enhancements listed as “Included in Design” are designed per current MassDOT standards, as appropriate.
Page 20
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Safety Issue
Intersection #1. West
Main Street (Route
20)/Church Street/
Bank of America
Driveway and Church
Street/Pierce Street
(cont.)
Safety Enhancement
Remove unnecessary pedestrian warning signage (W11-2) and
supplemental plaques located along the West Main Street
eastbound approach.
Relocate stop sign (R1-1) at the Pierce Street southwest-bound
approach so that it is visible to motorists in relation to the existing
tree.
Replace the existing “No Left Turn” sign at the Pierce Street
southwest-bound approach with a No Left Turn sign (R3-2)
according to current MUTCD standards.
Ensure that vehicles, and trucks, making a left-turn onto Church
from West Main Street eastbound are able to effectively maneuver
around the proposed reconstructed median island on Church
Street. The designer should also consider the safety benefits of
slowing down turning vehicles that the island may create.
Prohibit left-turns from Church Street northbound into the Mobil
driveway by installing a No Left Turn sign (R3-2).
Consider the appropriateness of adding signage to remind
motorists of the rear exit in the Bank of America parking lot to help
reduce driveway volume on West Main Street.
Review the proposed 22-foot receiving lane along West Main
Street eastbound to ensure that it meets turning radius
requirements for the double left-turn lane and is consistent with
current design standards and engineering judgment.
Consider potential interactions between West Main Street
eastbound left turning vehicles and West Main Street westbound
through traffic and consider the safety benefits and operational
impacts of making the West Main Street eastbound left-turn phase
protected only.
Safety
Payoff
Time
Frame
Low
Cost
Responsibility1
Status
Shortterm
Low
-
Included in
design
Low
Shortterm
Low
-
Included in
design
Low
Shortterm
Low
-
Included in
design
N/A
N/A
N/A
-
Included in
design
Medium
Shortterm
Low
Designer
Low
Shortterm
Low
Town of
Northborough
N/A
N/A
N/A
Designer
N/A
N/A
N/A
Designer
To be
incorporated
in design in
next submittal
For
immediate
consideration
To be
incorporated
in design in
next submittal
To be
incorporated
in design in
next submittal
Notes:
1. It is the responsibility of the Town of Northborough to ensure that the designer incorporates the relevant safety enhancements identified as part of this RSA.
2. The designer shall ensure that all enhancements listed as “Included in Design” are designed per current MassDOT standards, as appropriate.
Page 21
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Safety Issue
Intersection #1. West
Main Street (Route
20)/Church Street/
Bank of America
Driveway and Church
Street/Pierce Street
(cont.)
Safety Enhancement
Review the proposed pavement markings adjacent to the center
island at the Bank of America Driveway to ensure that their
purpose is clear for both cyclists and motorists to the extent
possible.
Reduce sign clutter on Church Street median island.
Consider implementing traffic signal changes so the Bank of
America driveway northbound approach and Church Street
southeast-bound approach have separate phases to improve
safety.
Evaluate feasibility of providing a left-turn pocket at the Main Street
westbound approach and providing a protected left-turn signal
phase to improve safety.
Add lane use pavement markings and signage at the West Main
Street eastbound approach according to MUTCD specifications, as
appropriate.
Intersection #2. West
Prohibit left turns into Blake Street from Main Street eastbound by
Main Street/Main
installing No Left Turn sign (R3-2) and evaluate the feasibility of
Street/South
modifying the entrance to Blake Street to allow for right-turns only.
Street/Blake Street
Consider providing a pedestrian education program through the
Northborough police department with local schools to help improve
pedestrian safety awareness among students.
Install advance wayfinding signage for Route 135 along West Main
Street/Main Street.
Safety
Payoff
Time
Frame
Cost
Responsibility
N/A
N/A
N/A
Designer
Low
Shortterm
Low
Town of
Northborough
High
Shortterm
Low
Medium
Longterm
Medium
-
Included in
design
Medium
Shortterm
Low
-
Included in
design
Medium
Longterm
Low
-
Included in
design
Low
Shortterm
Low
Town of
Northborough
Police
Department
For on-going
consideration
Low
Shortterm
Low
-
Included in
design
Status
To be
incorporated
in design in
next submittal
For
immediate
consideration
Town of
For
Northborough/
immediate
MassDOT District
consideration
3 Traffic Section
Notes:
1. It is the responsibility of the Town of Northborough to ensure that the designer incorporates the relevant safety enhancements identified as part of this RSA.
2. The designer shall ensure that all enhancements listed as “Included in Design” are designed per current MassDOT standards, as appropriate.
Page 22
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Safety Issue
Intersection #3.
Route 20/Patty
Lane/Hudson Street
Safety Enhancement
Evaluate the feasibility/appropriateness of installing a traffic signal
to provide controlled movements at the intersection.
Consider the feasibility of relocating the stone retaining wall
located along the north side of Main Street to improve sight lines
east of the intersection.
Install pedestrian crosswalk and designated pedestrian phase
across Main Street as part of signal installation.
Re-post Dead End sign (W14-1) located at Patty Lane onto a
separate post.
Safety
Payoff
High
Medium
Medium
Low
Time
Frame
Longterm
Longterm
Longterm
Shortterm
Cost
Responsibility
High
-
High
-
Medium
-
Low
-
Status
Included in
design
Included in
design
Included in
design
Included in
design
Notes:
1. It is the responsibility of the Town of Northborough to ensure that the designer incorporates the relevant safety enhancements identified as part of this RSA.
2. The designer shall ensure that all enhancements listed as “Included in Design” are designed per current MassDOT standards, as appropriate.
Page 23
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Appendix B. RSA Meeting Agenda Road Safety Audit
Northborough – West Main/Main Street (Route 20) at
Church/South/Hudson Streets
Meeting Location: Northborough Library, 34 Main Street
Tuesday, October 26, 2010
10:00 AM – 12:30 PM
Type of meeting:
High Crash Location – Road Safety Audit
Attendees:
Invited Participants to Comprise a Multidisciplinary Team
Please bring:
Thoughts and Enthusiasm!!
10:00 AM
Welcome and Introductions
10:15 AM
Review of Site Specific Material
• Crash, Speed, and Volume Summaries
• Existing Geometries and Conditions
10:45 AM
Visit the Site
• Walk the Main Street corridor, view all three intersections
• As a group, identify areas for improvement
11:45 AM
Completion of RSA
• Finalize discussion on all areas for improvement
• Discuss potential safety improvements with respect to the design plans
12:30 PM
Adjourn for the Day – but the RSA has not ended
Instructions for Participants:
• Before attending the RSA on October 26th, participants are encouraged to drive
through the corridor 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.
• After the RSA meeting, participants will be asked to comment and respond to the
document materials to assure it is reflective of the RSA completed by the
multidisciplinary team.
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Appendix C. RSA Audit Team Contact List Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
Participating Audit Team Members
Date:
Tuesday, October 26, 2010
Location: Northborough Library, 34 Main Street, Northborough, MA
Audit Team Members
Agency/Affiliation
E-mail Address
Phone Number
Assistant Town Administrator, Town of
Kim Hood
khood@town.northborough.ma.us
(508) 393-5040
Northborough
William Lyver
Northborough Police Department
wlyver@town.northborough.ma.us
(508) 393-1515
Kara Buzanoski
DPW Northborough
dpw@town.northborough.ma.us
(508) 393-5030
Central Massachusetts Regional Planning
Kevin Krasnecky
kkrasnecky@cmrpc.org
(508) 459-3314
Commission
Central Massachusetts Regional Planning
Jon Ding
jding@cmrpc.org
(508) 459 3331
Commission
Central Massachusetts Regional Planning
Sujatha Mohanakrishnan
sujatha@cmrpc.org
(508) 459 3335
Commission
Fred Litchfield
Town of Northborough
flitchfield@town.northborough.ma.us (508) 393-5015
David M. Durgin
Northborough Fire/EMS
ddurgin@town.northborough.ma.us (508) 393 1540
John Diaz
GPI
jdiaz@gpinet.com
(781) 279-5500 x3008
Gil Genesse
MassDOT – District 3
gilles.genesse@state.ma.us
(508) 929 3878
Stephen Risotti
MassDOT – District 3
Stephen.risotti@state.ma.us
(508) 929 3703
Eric Nascimento
MassDOT – District 3
eric.nascimento@state.ma.us
(508) 929-3875
Bonnie Polin
MassDOT Highway Division Safety Section
bonnie.polin@state.ma.us
(617) 973-7991
Lisa Schletzbaum
MassDOT Highway Division Safety Section
lisa.schletzbaum@state.ma.us
(617) 973-7685
Tim White
Federal Highway Administration
timothy.a.white@fhwa.dot.gov
(617)494-3280
Keri Pyke
Howard/Stein-Hudson Associates
kpyke@hshassoc.com
(617) 482-7080
Joe SanClemente
Howard/Stein-Hudson Associates
jsanclemente@hshassoc.com
(617) 482-7080
Road Safety Audit
West Main St./Main St. (Route 20) at Church St., South St. and Hudson St, Northborough
Prepared by Howard/Stein-Hudson Associates, Inc.
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Crash Data Summary Table
Intersection of West Main Street (Route 20) and Pierce Street and Church Street; Northborough, MA
1/1/07 - 7/14/10
Crash Date Crash Day
#
Time of Day
Manner of Collision
Type
Light Condition
Weather Condition
Type
Road
Surface
Driver Contributing Code
Ages
3
d/m/y
04/30/07
Monday
10:11 PM
Rear-end
Type
Dark - lighted roadway
Clear
Type
Dry
Type
Followed too closely
D1
29
6
8
6/6/07
9/24/07
Wednesday
Monday
9:34 AM
10:51 AM
Unknown
Rear-end
Daylight
Daylight
Clear
Clear
Dry
Dry
26
9
10
11
12
13
14
17
18
19
21
23
24
25
11/7/07
12/15/07
1/1/08
2/14/08
4/26/08
5/7/08
8/11/08
8/13/08
9/8/08
2/19/09
9/23/09
10/14/09
10/20/09
Wednesday
Saturday
Tuesday
Thursday
Saturday
Wednesday
Monday
Wednesday
Monday
Thursday
Wednesday
Wednesday
Tuesday
5:11 PM
2:13 PM
2:17 PM
3:51 PM
10:39 AM
7:16 PM
2:46 PM
12:51 PM
3:36 PM
7:46 PM
10:54 AM
5:27 PM
9:01 AM
Sideswipe, same direction
Rear-end
Single Vehicle Crash
Angle
Sideswipe, same direction
Angle
Rear-end
Rear-end
Sideswipe, same direction
Angle
Angle
Sideswipe, same direction
Angle
Dusk
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Dark - lighted roadway
Daylight
Daylight
Daylight
Dry
Dry
Snow
Dry
Dry
Dry
Dry
Dry
Dry
Wet
Dry
Dry
Dry
27
29
31
32
34
35
36
37
38
1/8/10
2/25/10
6/4/10
6/9/10
6/25/10
3/13/10
4/5/10
5/5/10
11/25/09
Friday
Thursday
Friday
Wednesday
Friday
Saturday
Monday
Wednesday
Wednesday
5:50 PM
8:38 AM
4:21 PM
3:06 PM
12:58 PM
5:04 PM
2:36 PM
10:57 AM
11:46 AM
Rear-end
Sideswipe, same direction
Rear-end
Angle
Sideswipe, same direction
Rear-end
Rear-end
Sideswipe, same direction
Rear-end
Dark - lighted roadway
Daylight
Daylight
Daylight
Daylight
Dark - lighted roadway
Daylight
Daylight
Daylight
Clear
Clear
Snow
Clear
Clear
Clear
Cloudy
Clear
Clear
Cloudy
Clear
Cloudy
Clear
Sleet, Hail, Freezing
Rain
Snow
Clear
Cloudy
Clear
NR
Clear
Clear
Cloudy
Over-correcting/over-steering
Followed too closely
Failure to keep in proper lane or
running off road
Other improper action
No Improper Driving
Made an improper turn
Other improper action
Other improper action
Followed too closely
Other improper action
Failed to yield to right of way
Over-correcting/over-steering
Failed to yield to right of way
running off road
Made an improper turn
39
40
41
42
43
44
45
46
47
48
10/17/09
10/18/09
12/13/08
11/25/08
8/22/08
12/18/07
6/21/07
5/30/07
6/9/07
3/29/07
Saturday
Sunday
Saturday
Tuesday
Friday
Tuesday
Thursday
Wednesday
Saturday
Thursday
7:48 AM
2:40 PM
5:30 PM
3:17 PM
11:35 AM
12:29 PM
2:27 PM
6:10 PM
11:11 AM
10:33 AM
Angle
Angle
Angle
Angle
Single Vehicle Crash
Angle
Angle
Rear-end
Rear-end
Rear-end
Daylight
Daylight
Dark - lighted roadway
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Clear
Snow
Clear
Rain
Clear
Clear
Clear
Clear
Rain
Clear
Dry
Wet
Dry
Wet
Dry
Wet
Dry
Dry
Wet
Dry
49
1
2
4
5
7
15
16
20
22
26
28
30
33
5/19/07
1/3/07
1/19/07
5/1/07
5/15/07
9/8/07
6/18/08
7/21/08
2/6/09
04/27/09
11/28/09
1/23/10
3/12/10
6/18/10
Saturday
Wednesday
Friday
Tuesday
Tuesday
Saturday
Wednesday
Saturday
Friday
Monday
Saturday
Saturday
Friday
Friday
3:15 PM
2:58 PM
8:37 AM
7:05 PM
7:00 AM
3:51 AM
4:36 PM
9:01 PM
11:04 PM
6:04 PM
2:47 PM
10:14 AM
4:46 PM
2:48 PM
Angle
Sideswipe, same direction
Single Vehicle Crash
Angle
Rear-end
Single Vehicle Crash
Sideswipe, same direction
Unknown
Rear-end
Angle
Rear-end
Angle
Angle
Angle
Daylight
Daylight
Daylight
Daylight
Dark - lighted roadway
Dark - lighted roadway
Daylight
Daylight
Dark - lighted roadway
Daylight
Daylight
Daylight
Daylight
Daylight
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
Clear
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Out of Area
Summary based on Crash Reports obtained from the Northborough Police Department and Operator Reports
Ice
Snow
Dry
Dry
Dry
Wet
Dry
Dry
Dry
49
39
59
28
71
19
31
43
D2
21
Closing open door while driving
Turning into Mobil
29
35
59
17
62
74
Turning into Mobil
Turning into Citgo
Swerved to avoid vehicle turning from Mobil station
29
30
33
No Improper Driving
Inattention
Other improper action
No Improper Driving
No Improper Driving
Followed too closely
No Improper Driving
Inattention
Failure to keep in proper lane or
running off road
Other improper action
Other improper action
Failed to yield to right of way
No Improper Driving
No Improper Driving
Other improper action
No Improper Driving
Followed too closely
Other improper action
37
22
32
35
Failed to yield to right of way
41
34
37
58
41
24
55
66
18
39
37
42
49
53
48
66
51
23
25
51
55
54
24
51
48
Bicyclist collided with a vehicle
Unknown vehicle fled the scene after the accident
Another vehicle left the scene without providing any information
36
Exiting Mobil station
Both vehicles left the scene before the trooper arrive
Both vehicles had a green light at the time of the crash
Exiting 24 West Main Street (CVS)
Unknown vehicle fled the scene after the accident
17
22
30
47
17
Turning into CVS
At lane merger
Turning into CVS
Sideswipe possibly caused by avoiding rear-end collision
58
39
24
No Improper Driving
Inattention
Inattention
Inattention
Unknown
Inattention
Inattention
Inattention
Other improper action
Emotional
Made an improper turn
Comments
67
Turning into Mobil
CVS parking lot
Plow truck in parking lot
CVS parking lot
CVS parking lot
Dump truck in CVS lot
Citgo parking lot
6 Church street parking lot
Mobil parking lot
CVS parking lot
North of Pierce St. approaching Whitney St.
Turning into 15 West Main St
CVS parking lot
Mobil parking lot exit
Month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct J
6%
8%
6%
8%
11%
17%
0%
8%
8%
11%
8%
8%
F
M
A
M
J
J
A
s
0
Nov N
Dec D
Th
F
Sa
Su
oav of tne weeK
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
ISunday
6-10AM
10-2PM
2-6PM
6-10PM
10-2AM
2-6PM
Tlmeofuav
16 AM to 10 AM
10 AM to 2 PM
2 PM to 6 PM
6 PM to 10 PM
10 PM to 2 AM
12AMto6 PM
M
T
w
1
2
3
4
5
6
7
99
1
2
3
4
5
6
7
8
97
99
1
2
3
4
5
6
7
97
99
<=20
20s
30s
40s
50s
60s
70s
>=80
11%
14%
29%
14%
9%
20%
20%
15%
10%
5%
0%
J
F
15-20
21-29
30-39
40-49
50-59
60-69
70-79
80+
J
M
s
A
J
N
0
D
-f---'--r - ,­
--1
0% +-L-L-~~~~~~~~~~~~~L-~==~
M
w
T
Th
F
Sa
Su
~
11%
31%
47%
8%
3%
0%
weatner cone~ ltlon
Clear
68%
Cloudy
15%
Rain
6%
Snow
9%
Sleet Hail Freezing
3%
Foa. Smoo, Smoke
0%
Severe Crosswinds
0%
Blowino sand snow
0%
Other
0%
IUnknown
0%
Ages
01
6%
16%
32%
19%
16%
6%
3%
0%
A
30% ~----------~-------------------------,
20%
10%
50%
-r---------------,
0%
+-. .~~~~~6-10AM
Manner of co11 s1on
IS1nale Vehicle Lrasl1
6%
Rear-end
36%
An ale
36%
Sideswipe, same din
19%
Sideswipe OPPOSite
0%
Head on
0%
IRear to Rear
0%
IUnknown
3%
Roaa 5unace
IDrv
Wet
Snow
Ice
ISand. mud, dirt oil ~
IWater (standlno. mo
Slush
Other
!Unknown
M
75%
17%
6%
3%
0%
0%
0%
0%
0%
02
8%
33%
17%
8%
25%
4%
4%
0%
10-2PM
2
2-6PM
3
6-10PM
4
5
10-2AM
2-6PM
7
6
99
80% ~-------------------------------------,
60%
40%
20%
0%
2
5
4
3
6
7
8
97
99
80% ~~--------------------------------~-,
60%
40%
20%
0% ~~~~~~~~~----r---~--~--~~~
2
3
4
5
6
7
97
99
40% ?-------------~~------------------~-.
30%
20%
10%
0%
15-20 21-29 30-39 40-49 50-59 60-69 70-79 80+
-+---....,...
H LUIION
..'"*
I
J:!I-Lflk 27 JJ "1:_
---•"
SYMBOlS
39
~
* --IS:J
te&r•EIIId
IICIItng Nltclt
+ - - - .,..lnvol•ed ''tittle
,..5ti>1U
C
Parted Mtcl.e
Ftu.d C*JKt
e
F&ttl Accident
0
,..,, ••__
SHCJtf FOR EACH
ACCIOEtfT
TYPES OF COLLISIONS
.,.,,.., v•tc1e .
.. UJ))
.....a....,u,___ _,.
ltid 0.
~
Sfctt Swflt'
~ \SIA~'IS'
Ollt of Control
I
.....Y'
r
Ltft Tur'n
Rttr-t Aftt1t
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Crash Data Summary Table
Intersection of West Main Street (Route 20) and South Street; Northborough, MA
1/1/07 - 7/14/10
Crash Date Crash Day
d/m/y
1 1/25/07
Thursday
3 5/15/2007 Tuesday
Time of Day
4 6/18/07
Monday
3:52 PM
Sideswipe, same direction Daylight
Clear
Dry
Driver Contributing Code
Type
Inattention
Other improper action
Failure to keep in proper lane
or running off road
5 2/11/08
Monday
8:48 AM
Angle
Daylight
Clear
Dry
Failed to yield to right of way
57
48
6
7
8
12
Thursday
Wednesday
Saturday
Friday
8:37 AM
10:22 AM
10:30 AM
4:03 PM
Angle
Sideswipe, same direction
Sideswipe, same direction
Angle
Daylight
Daylight
Daylight
Daylight
Clear
Clear
Clear
Clear
Dry
Dry
Dry
Dry
Failed to yield to right of way
Other improper action
Other improper action
Inattention
50
47
52
47
28
18
Turning into Honey Farms
Turning into 17 South St.
Turning into 10 South St.
14 5/9/09
Saturday
6:16 PM
Angle
Daylight
Cloudy
Dry
Failed to yield to right of way
18
49
Turning into Honey Farms
15 8/3/09
16 10/8/09
17 10/26/09
Monday
Thursday
Monday
3:58 PM
5:57 PM
4:11 PM
Single Vehicle Crash
Angle
Angle
Daylight
Daylight
Daylight
Clear
Clear
Clear
Dry
Dry
Dry
Failed to yield to right of way
Other improper action
Other improper action
19
48
52
46
47
31
Visibility of bike obstucted by traffic
Exiting Honey Farms
20 5/9/10
Sunday
3:09 PM
Angle
Daylight
Clear
Dry
Made an improper turn
28
26
Non turning vehicle had attached trailer
22 5/9/10
23 8/11/09
Sunday
Tuesday
2:55 PM
7:15 PM
Angle
Daylight
Sideswipe, same direction Daylight
Clear
Cloudy
Dry
Dry
Other improper action
Failed to yield to right of way
17
43
24 7/27/09
Monday
8:57 AM
Angle
Daylight
Clear
Dry
Failed to yield to right of way
38
34
25 2/12/09
Thursday
10:16 AM
Angle
Daylight
Cloudy
Dry
Other improper action
53
25
26 1/31/09
Saturday
11:07 AM
Angle
Daylight
Clear
Other improper action
48
23
27 12/7/08
Sunday
3:24 PM
Angle
Daylight
Clear
Dry
Other improper action
79
65
#
9/11/08
10/22/08
1/3/09
3/27/09
7:47 AM
4:10 PM
Manner of Collision
Light Condition
Type
Type
Angle
Daylight
Sideswipe, same direction Daylight
Weather Condition
Type
Clear
Clear
Road Surface
Type
Dry
Dry
Ages
D1
D2
29
40
51
26
Comments
21
40
100' South of intersection
Exiting the parking lot from 5 W.Main St.
28 10/7/08
Tuesday
5:49 PM
Rear-end
Daylight
Clear
Dry
Inattention
16
43
29 4/15/08
Tuesday
5:13 PM
Sideswipe, same direction Daylight
Clear
Dry
Other improper action
23
31
30 3/29/08
Saturday
3:31 PM
Angle
Daylight
Clear
Dry
Made an improper turn
43
42
31 2/5/08
Tuesday
11:41 AM
Angle
Daylight
Rain
Wet
Failed to yield to right of way
67
22
32 1/12/08
Saturday
2:46 PM
Angle
Daylight
Clear
Dry
Other improper action
19
17
33 10/25/07
Thursday
10:43 AM
Sideswipe, same direction Daylight
Rain
Wet
Other improper action
31
49
34 5/17/07
Thursday
6:52 AM
Sideswipe, same direction Daylight
Clear
Dry
Inattention
25
55
35
2
9
10
11
13
18
19
21
Friday
Sunday
Saturday
Saturday
Sunday
Monday
Saturday
Thursday
Tuesday
3:23 PM
8:30 PM
10:00 AM
9:21 PM
11:04 AM
11:22 AM
9:00 PM
4:39 PM
3:08 PM
Angle
Daylight
Rear to Rear
Dark - lighted roadway
Rear-end
Daylight
Angle
Dark - lighted roadway
Rear-end
Daylight
Rear-end
Daylight
Rear to Rear
Dark - lighted roadway
Sideswipe, opposite directio Daylight
Angle
Daylight
Clear
Clear
Clear
Clear
Cloudy
Clear
Clear
Clear
Cloudy
Wet
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Wet
Failed to yield to right of way
37
38
1/5/07
4/22/07
1/17/09
1/24/09
2/22/09
4/13/09
4/30/10
5/6/10
6/1/10
Out of Area
Summary based on Crash Reports obtained from the Northborough Police Department and Operator Reports
Inattention
Inattention
Physical Impairment
Other improper action
Inattention
Unknown
Other improper action
Turning into Honey Farms parking lot
47
23
56
Exiting Honey Farms
Strip mall parking lot
1 South St. parking lot
Honey Farms parking lot
Honey Farms parking lot, DUI
Honey Farms parking lot
Honey Farms parking lot
Honey Farms parking lot
Honey Farms parking lot
\J\Jec0t ~\V\~t(s~ st
Crash Data Summary Tables and Charts
r-------~M~,o~n~nr-n------~
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
F.l.l_:--------+-~~
~F~------+-~~
~M~------------+---~~
F.A~----------~--~~n
~M~----------~----~n
~J~------------+---~~
~J~------+-~~
F.A~----------~----~~
...~~-------~--~~
..::[Q:::--------+----'-:~
N
~10~-------+-~~
Dav Of tne weeK
M
T.
w
Th
F
Sa
su
IMondav
Tuesdav
Wednesdav
Thursdav
Fridav
Saturdav
l§_ui}Q_ay
19%
19%
4%
22%
7%
19%
30% ~-------------------------------------,
20%
10%
0%
~L-~~~~-C:1--~~~L-~~~~~~~
w
T
M
F
Th
Su
Sa
11~
Tlmeoroav
6-10AM 16 AM to 10 AM
10-2PM 10 AM to 2 PM
2-6PM 2 PM to 6 PM
6-10PM · 6 PM to 10 PM
10-2AM 10 PM to 2 AM
2-6PM ~to 6 PM
19%
22%
52%
7%
0%
0%
I
1oo%
0%
-
. -
6-10AM
-
10-2PM
2-6PM
6-10PM
10-2AM
2-6PM
Manner Of COli SIOn
1
2
3
4
5
6
7
99
Single Vehicle C.rash
Rear-end
Angle
;ideswice same din
;ideswice occos1te
ead on
Rear to Rear
4%
4%
63%
30%
0%
0%
0%
0%
4
3
2
5
6
7
99
weather conCIItlon
1
2
3
4
5
6
7
8
97
99
!Clear
Cloudv
!Rain
Snow
!Sleet Hail. Freez1no
!Fog, Smoa. Smoke
Severe Crosswinds
Blowina sand snow
other
[.\J_n~nown
81%
11%
7%
0%
0%
0%
0%
0%
0%
0.%
100%
80%
60%
40%
20%
0%
1-
1
-2
3
4
5
6
8
7
97
99
Road 5urtace
1
2
3
4
5
6
7
97
99
Wet
Snow
Ice
§and. mud, dirt oil, ~
[YI{ater (standing, mo
Slush
IQ!her
[Unknown
88%
12%
0%
0%
0%
0%
0%
0%
0%
100% -
r-
50%
-
,-,
0%
1
2
3
4
5
6
7
97
99
Ages
01
<=20
20s
30s
40s
50s
60s
70s
>=80
15-20
21-29
30-39
40-49
50-59
60-69
70-79
80+
20%
20%
12%
16%
24%
4%
4%
0%
02
8%
24%
16%
44%
4%
4%
0%
60% r-------------------------~-----------,
40%
20%
0%
15-20 21-29 30-39 40-49 50-59 60-69 70-79
80+
1 COLUII~N
DJAGRAil
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Sterret
SYMBOLS
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>f.­ - ­
ISJ
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•
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lhdtsll'fu
Pf"ed VlbfC1t
Fiu.d
SHOW FOR £ACH
TYPES OF COLLISIONS
_,Kt
f&tt1 Accident
J.S.U•I Jccldeet
4
•• Rt.tr•EIIId
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Htad Oft
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l. ,-:t•t.t 1oc:atton
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Crash Data Summary Table
Intersection of Main St (Route 20) and Hudson St; Northborough, MA
1/1/07 - 7/14/10
Crash Date Crash Day
d/m/y
#
Time of Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
1/14/07
3/7/07
4/24/2007
8/29/07
1/8/08
3/16/08
4/2/08
8/24/08
7/22/09
10/2/09
10/3/09
10/6/09
11/12/09
2/25/10
4/19/10
5/3/10
5/23/10
Sunday
Wednesday
Tuesday
Wednesday
Tuesday
Sunday
Wednesday
Sunday
Wednesday
Friday
Saturday
Tuesday
Thursday
Thursday
Monday
Monday
Saturday
5:48 PM
7:47 PM
6:32 PM
3:15 PM
11:29 AM
12:31 PM
8:11 AM
8:18 PM
4:36 PM
6:01 PM
2:34 PM
3:52 PM
5:30 PM
5:15 PM
5:45 PM
10:38 AM
5:58 PM
18
19
20
21
22
23
24
25
5/28/10
7/14/10
2/11/10
12/17/09
8/29/09
8/21/09
4/2/09
5/22/09
Friday
Wednesday
Thursday
Thursday
Saturday
Friday
Thursday
Friday
6:50 PM
3:14 PM
1:51 PM
3:47 PM
12:58 PM
11:21 AM
1:33 PM
10:06 AM
Manner of Collision
Type
Angle
Unknown
Rear-end
Angle
Single Vehicle Crash
Angle
Angle
Sideswipe, same direction
Angle
Rear-end
Angle
Angle
Rear-end
Sideswipe, same direction
Rear-end
Angle
Angle
Sideswipe, opposite
direction
Angle
Angle
Angle
Rear-end
Angle
Angle
Rear-end
Light Condition
Type
Weather Condition
Type
Road
Surface
Type
Dark - lighted roadway
Dusk
Daylight
Daylight
Daylight
Daylight
Daylight
Dark - lighted roadway
Daylight
Dusk
Daylight
Daylight
Dusk
Dark - lighted roadway
Daylight
Daylight
Daylight
Rain
Clear
Clear
Clear
Clear
Cloudy
Clear
Clear
Clear
Clear
Rain
Clear
Clear
Rain
Clear
Cloudy
Clear
Wet
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Wet
Dry
Dry
Wet
Dry
Dry
Dry
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Clear
Cloudy
Clear
Clear
Rain
Clear
Clear
Clear
Dry
Wet
Dry
Dry
Wet
Dry
Dry
Dry
Driver Contributing Code
Type
Failed to yield to right of way
Inattention
Other improper action
Made an improper turn
Made an improper turn
Inattention
Inattention
Other improper action
Made an improper turn
Inattention
Failed to yield to right of way
Other improper action
Followed too closely
Other improper action
Inattention
Other improper action
Made an improper turn
Ages
D1
D2
Comments
50
57
Turning into Exxon
Exxon parking lot
65
30
21
70
45
34
66
48
17
60
61
45
41
51
42
17
30
47
19
61
18
57
36
85
Turning into Exxon
Turning into Exxon
Exiting Exxon
Avoiding East bound vehicle
Trinity church parking lot
Stop and go traffic conditions
Stopped for railroad tracks
Exxon parking lot
Made an improper turn
Made an improper turn
Other improper action
Other improper action
Inattention
Other improper action
38
52
16
57
37
43
34
55
58
58
21
77
26
12/12/08
Friday
3:43 PM
Angle
Daylight
Cloudy
Wet
Failed to yield to right of way
16
66
27
2/11/09
Wednesday
5:30 PM
Angle
Dark - lighted roadway
Clear
Dry
Inattention
20
53
28
12/23/08
Tuesday
2:02 PM
Angle
Daylight
Clear
Wet
Made an improper turn
46
52
29
12/12/08
Friday
3:43 PM
Angle
Daylight
Cloudy
Wet
Failed to yield to right of way
16
66
Vehicle collided with a bicyclist
30
8/27/08
Wednesday
1:57 PM
Angle
Daylight
Clear
Dry
Made an improper turn
21
37
31
3/16/08
Sunday
12:31 PM
Angle
Daylight
Cloudy
Dry
Inattention
68
58
Turning into Exxon
32
6/11/08
Wednesday
12:51 PM
Angle
Daylight
Clear
Dry
Visibility Obstructed
40
71
Exiting Exxon
33
6/14/08
Saturday
10:31 AM
Sideswipe, same direction
Daylight
Clear
Dry
No Improper Driving
49
61
34
2/15/08
Friday
7:20 PM
Angle
Dark - lighted roadway
Clear
Dry
Failed to yield to right of way
17
48
35
1/12/08
Saturday
10:35 AM
Angle
Daylight
Clear
Dry
Other improper action
27
69
36
10/5/07
Friday
3:17 PM
Angle
Daylight
Clear
Dry
Other improper action
44
46
37
8/1/07
Wednesday
3:19 PM
Angle
Daylight
Clear
Dry
Failed to yield to right of way
50
17
38
5/15/07
Tuesday
5:42 PM
Angle
Daylight
Clear
Dry
Other improper action
72
42
Dry
Failed to yield to right of way
49
74
Clear
Clear
Clear
Clear
Dry
Dry
Dry
Dry
Failed to yield to right of way
No Improper Driving
Followed too closely
74
56
37
45
54
55
39
5/12/07
Saturday
11:28 AM
Angle
Daylight
40
41
42
43
4/29/07
4/24/07
1/28/07
3/28/07
Sunday
Tuesday
Sunday
Wednesday
4:34 PM
4:20 PM
5:03 PM
2:56 PM
Angle
Angle
Rear-end
Rear-end
Daylight
Daylight
Daylight
Daylight
Out of Area
Summary based on Crash Reports obtained from the Northborough Police Department and Operator Reports
Unknown vehicle fled the scene after the accident
39
l\)\Q\'f\ St
I HvdSOY\St Crash Data Summary Tables and Charts
Month
Jan Feb Mar Apr May Jun Jul AU!l Sep Oct Nov Dec M
T
w
Th
F
Sa
Su
J
10%
10%
8%
15%
13%
5%
3%
15%
0%
10%
3%
10%
F
M
A
M
IJ
J
A
s
0
N
~
Dav of the
l.M_onday
rruesday
Wednesday
IThursday
Friday
Saturday
§_un_(j_ay
F
J
M A
M
J
A
J
S
0
N
D
we~
5%
15%
20%
13%
18%
13%
18%
30% ~----------------~----------------~-,
20%
10%
0% +-~~~~~_.~~~~~~~T-~~~~~
100%
w
T
M
F
Th
Sa
Su
y-------------------------------------,
0% +-----~~~~----~----~--~--~--~
6-10AM 10-2PM 2-6PM 6-10PM 10-2AM 2-6PM
1
2
3
4
5
6
7
99
1
2
3
4
5
6
7
8
97
99
1
2
3
4
5
6
7
97
99
Manner of Collltnon
l§ir:!9!_e Vehicle crash
Rear-end
Al}gle
§!Q_esWipe same dn"E
§!Q_esWipe oppos1te
Head on
Rear to Rear
l,J_nl(nown
3%
20%
70%
8%
0%
0%
0%
0%
weather C011_Qlllon
l_Qear
74%
Cloudy
15%
Rain
10%
Snow
0%
.§!_eet, Hail Freezing
0%
Fqg Smo!l, Smoke
0%
Severe Crosswinds
0%
Blowing sand snow
0%
Other
0%
Unknown
0%
Road Surface
lQiy
Wet
Snow
Ice
[§and mud, d1rt oil, '
IY\I'ater (standing, mo
[§lush
Other
[!,!~nown
80%
20%
0%
0%
0%
0%
0%
0%
2
3
4
5
6
99
7
80% ~--------------~---------------------,
60% .
40%
20%
0%
2
3
4
6
5
7
8
97
99
100%
r­
50%
-
-
1-
n
0%
1
2
3
4
5
6
7
97
99
~
Ages
01
<=20
' 20s
30s
40s
50s
60s
70s
>=80
15-20
21-29
30-39
40-49
50-59
60-69
70-79
18_0+
16%
11%
11%
30%
16%
8%
8%
0%
02
9%
3%
12%
15%
29%
21%
9%
3%
40% ~-------------------------------------,
30%
20%
10%
0%
15-20 21-29 30-39 40-49 50-59 60-69 70-79
80+