ROAD SAFETY AUDIT
Route 24 at Route 140 Interchange
in Taunton, Massachusetts
February 11, 2015
Submitted to:
MassDOT
Prepared By:
Fay, Spofford & Thorndike
5 Burlington Woods
Burlington, Massachusetts
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Table of Contents
Background .................................................................................................................................1
Project Data .................................................................................................................................1
Project Location and Description..............................................................................................3
Audit Observations .....................................................................................................................9
Potential Safety Enhancements ...............................................................................................13
Summary of Road Safety Audit...............................................................................................17
List of Appendices
Appendix A.
Appendix B.
Appendix C.
Appendix D
RSA Meeting Agenda
Safety Review Prompt List
Detailed Crash Data
Crash Cluster Map
List of Figures
Figure 1. Locus Map ................................................................................................................................. 5
Figure 2. Aerial of Route 24/ Route 140 Interchange............................................................................... 6
List of Tables
Table 1.
Table 2.
Table 3.
Participating Audit Team Members ....................................................................................... 2
Route 24/Route 140 Interchange Crash Summary 2010-2012............................................... 8
Potential Safety Enhancement Summary – Route 24 over Route 140 ramps....................... 18
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Background
Fay, Spofford and Thorndike (FST) is developing preliminary design plans of Interchange
Improvements proposed by MassDOT at the Route 24/ Route 140 Interchange (Project No.
605888) in the City of Taunton. The bridge and roadways are under the jurisdiction of
MassDOT.
MassDOT has identified a high-crash cluster at the interchange based on 2010-2012 crashes.
This cluster includes the intersections of Route 140 with the Route 24 northbound and
southbound ramps. The cluster is an indication that the interchange is a high-crash location
within the Southeastern Regional Planning and Economic Development District (SRPEDD)
boundaries. As a result of the 2012 crash cluster, which was identified on MassDOT’s online
database, a Roadway Safety Audit (RSA) was required to be conducted as part of MassDOT’s
project design process.
A Roadway Safety Audit, as defined by the Federal Highway Administration, is a formal safety
performance examination of an existing or future road or intersection by an independent audit
team. This RSA was conducted during the Preliminary Design (25% Design) stage of the Project
in order to incorporate safety-related design features early in the design process. Elements of the
RSA will be considered for incorporation into the Project as the design progresses.
Project Data
The Roadway Safety Audit was conducted on December 11, 2014 at 9 AM at the Taunton City
Hall, temporarily located at 141 Oak Street, Taunton. As can be seen in Table 1, the Audit Team
consisted of a cross-section of State and local engineering, emergency response, and planning
personnel that was assembled in conjunction with input from MassDOT’s Safety Management
Unit.
Page 1
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Table 1. Participating Audit Team Members
Audit Team Member
Agency/Affiliation
Tony Abreau
Cathal O’Brien
Derek Feeney
David Santos
Mark Slusarz
Richard Madsen
Richard Oliveira
Brian Parro
Hardy Patel
Thomas Rebello
Lisa Schletzbaum
Anthony Thomas
Tyler de Ruiter
Kien Ho
Alan Cloutier
Jack Martin
City of Taunton Public Works Department
City of Taunton Public Works Department
City of Taunton Police Department
City of Taunton Fire Department
City of Taunton Engineer
MassDOT Highway Division – District 5 Projects
MassDOT Highway Division – District 5 Projects
MassDOT Highway Division – Highway Design
MassDOT Highway Division – Highway Design
MassDOT Highway Division – District 5 Traffic
MassDOT Highway Division – Safety Management Unit
Massachusetts State Police
BETA
BETA
Fay, Spofford & Thorndike
Fay, Spofford & Thorndike
Audit participants were provided with materials to review prior to the Audit. The materials
included a locus map, a summary of the crash data provided by MassDOT and the Taunton
Police department. This data is included in the Appendix. Participants were encouraged to visit
the site prior to the Audit and were urged to consider elements on MassDOT’s Safety Review
Prompt List (also provided to Audit participants in advance).
Since pedestrians are not permitted on Route 24, the typical “field walk” consisted of watching
pre-recorded videos. The videos were taken on Sunday, December 7th in the morning at the
interchange. Handwritten notes documented the observations made by Audit team members
while watching the videos.
Page 2
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Project Location and Description
The Audit location was the interchange of Route 24 and Route 140, including the two signalized
ramp intersections on Route 140. A locus map is provided as Figure 1.
Route 24 over Route 140
The Route 24/Route 140 Interchange (Exit 12), Taunton is a five-ramp partial cloverleaf
configuration. In the vicinity of the interchange, Route 24 northbound and southbound consists
of two travel lanes in each direction and is grade separated, passing over Route 140. Route 24
northbound has two off-ramps and one on-ramp. Route 24 southbound has one off-ramp and one
on-ramp. An extended deceleration lane is provided on Route 24 southbound; Route 24
northbound also has an extended acceleration lane. In the vicinity of the interchange, Route 140
generally consists of two travel lanes in each direction. Both of the intersections of Route 140
and the Route 24 ramps are controlled by a traffic signal. An aerial showing the interchange is
shown in Figure 2.
Route 24
Route 24 is a four- to six-lane limited access highway running north to south and providing a
major link between the greater Boston area and communities to the southeast. The northern
terminus begins at I-93/Route 1 south of Boston and ends in Portsmouth, Rhode Island. Route
24 operates as four lanes (two lanes in each direction) at the Route 140 interchange, but has been
widened by MassDOT for approximately 2,700 feet north in advance of Exit 12 to add to the
length of the deceleration lane. The acceleration lane on Route 24 northbound was also
lengthened by approximately 2,000 feet north of Route 140.
Route 140
Route 140 is a state numbered route that passes through parts of southeastern and central
Massachusetts. The route travels from U.S. Route 6 in New Bedford at its southeastern terminus
to the intersection with Massachusetts Route 23 in Winchendon. Just south of the site, Route 140
operates as a limited access highway from Route 24 down to its southern terminus at US Route 6
in New Bedford.
Route 140/Route 24 Northbound On-Ramps/Route 24 NB to Route 140 NB off-ramp
The Route 24 northbound ramps (Exit 12B)/County Street (Route 140) intersection is a
signalized intersection consisting of three approaches. The Route 24 Northbound Exit Ramp
consists of a single lane under Yield control, which directs vehicles northbound on Route 140.
The Route 140 northbound approach consists of two through lanes, and an exclusive right-turn
only lane, which operates under Yield control. The Route 140 southbound approach consists of
a single left-turn lane and two through lanes. A median with a guard-rail separates the north and
Page 3
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
south directions of travel on Route 140. The posted northbound speed limit on Route 140 at the
intersection is 40 MPH. Crosswalks and wheelchair ramps are not provided in the area.
Route 140/ Route 24 Southbound Ramps
The Route 24 southbound (Exit 12)/County Street (Route 140) intersection is a signalized
intersection consisting of three approaches. The Route 24 Southbound Exit Ramp approach
consists of a left-turn lane and two right-turn lanes. The Route 140 northbound approach consists
of a left-turn lane and two through lanes. The Route 140 southbound approach consists of one
through lane and a shared through/right-turn lane. The right turn operates under Yield control. A
median with a guard-rail separates the north and south directions of travel of Route 140. The
posted speed limit on Route 140 is 40 MPH. Crosswalks and wheelchair ramps are not provided
in the area.
Page 4
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Figure 1 – Locus Map
Source – MassGIS
0
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North
Figure 2 – Aerial of Route 24/Route 140 Interchange
Source – Google Maps
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Transit
The Greater Attleboro Transit Authority (GATRA) bus lines #3 and #8 run along Route 140
through the study interchange. Route 3 consists of 6 buses in each direction per day, while
Route 8 consists of 13 buses in each direction per day.
Traffic Volumes
Based on 2012 traffic data, Route 24 carries 72,200 vehicles per day, north of Route 140, and
53,600 vehicles per day, south of Route 140 in Taunton. Route 140 carries 43,400 vehicles per
average day between Route 24 (Exit 12) and Stevens Street (Exit 11).
Crash History
MassDOT has identified a crash cluster, using 2010-2012 crash data at the Route 24/Route 140
interchange. This cluster includes the Route 24/Route 140 interchange and the Route 140
northbound and southbound ramps. The crash cluster is an indication that the location is within
the top 5% of high crash locations in the Southeastern Regional Planning and Economic
Development District (SRPEDD) boundaries. The cluster map is contained in the Appendix.
Additionally, individual detailed crash reports for the intersection of Route 24 at Route 140
ramps were provided by the Taunton Police Department. The individual crash reports provide
detailed information about the circumstances surrounding a crash and may provide insight into
possible causes of crashes. The following summarizes the crashes provided by MassDOT and
the Taunton Police Department:
As noted during the Audit, 44.2% of the crashes occurred between the hours of 2:00 PM to 6:00
PM, when traffic exiting Route 24 southbound is heavy. In addition, 84 of the 105 Route 24
mainline crashes occurred on Route 24 southbound.
Page 7
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Table 2. Route 24/Route 140
Interchange Crash Summary 2010-2012
Year
2010
2011
2012
Total
Average per year
Crash Rate
Crashes
75
67
64
206
68.7
1.98
Severity
Property Damage Only
Non-Fatal Injury
Fatal Injury
Not Reported
Total
Crashes
137
55
1
13
206
Manner of Collision
Angle
Head-on
Rear end
Sideswipe, opposite direction
Sideswipe, same direction
Single vehicle crash
Unknown
Total
Crashes
17
2
124
1
22
36
4
206
Crashes
Vehicles Involved
Motor Vehicle*
206
Bicyclist**
0
Total
206
*Crash involved motor vehicle(s) only
**Crash involved bicyclist and motor-vehicle
Page 8
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Audit Observations
Audit Team members were solicited for their observations during the Audit and while watching
the videos of the interchange. The Audit team members offered the following observations on
roadway and intersection issues as they relate to safety. The safety observations were able to be
identified with specific types of crashes occurring at the interchange.
Route 24 Southbound north of Route 140
Operations
•
Route 24 currently experiences congestion between Route 140 and the drop lane near I­
495.
•
The Route 24 Southbound Ramp to Route 140 operates poorly due to the heavy afternoon
volumes with significant queuing occurring on the main line. The extensive queuing
leads to rear end accidents as well as sideswipe accidents because queues on the right
lane of the highway may not be expected. This could be a contributing factor in some of
the 69 rear end accidents and 5 sideswipe crashes in this area.
Pavement Markings and Signs
•
Due to the third “exit only” lane appearing as a through lane, there is concern that during
off-peak hour, drivers may pass on the right.
•
Although there was initially concern that drivers weren’t informed about possible ramp
backups, it appears that there is sufficient signage.
Geometry
•
The Route 24 southbound off-ramp is currently very long, in order to accommodate
significant queuing during the weekday afternoons. This ramp was lengthened years ago
to accommodate the increasing ramp traffic. At the time the ramp was lengthened by
narrowing the median and shoulder. The narrower shoulders limit the available recovery
area.
Route 24 Southbound Off-Ramp
Maintenance
•
There is vegetation on the inside of the curve that is blocking the view of signage and
queued vehicles.
Pavement Markings and Signs
•
Drivers see service signage and a park-and-ride sign before seeing any directional
signage identifying the directionality of Route 140.
•
There are no chevron signs delineating the ramp. This could be a contributing factor in
some of the 10 off-the-road crashes in this area.
Page 9
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Geometry
•
A total of 7 out-of-control accidents were noted to occur along this loop ramp during
wet/icy weather, possibly indicating drainage issues or the need to superelevate the
roadway.
•
The radius of the loop ramp is small, requiring the posted 25 mph ramp speed limit. This
could be a contributing factor in the 10 out of control crashes at this location.
Route 24 Southbound at Route 140 on-Ramp
Geometry
•
There are a few potholes where the ramp from Route 140 intersects with Route 24.
Drivers avoiding these potholes are likely to merge into traffic earlier than normal. This
could have been a contributing factor the one sideswipe crash at this location.
•
Acceleration lane is short. This could have been a contributing factor in the one
sideswipe crash at this location.
Route 24 Northbound at Route 140 on-ramp
Geometry
•
The acceleration lane was lengthened a number of years ago, which seems to have helped
operations.
Pavement Markings and Signs
•
A question was raised regarding the efficacy of the Yield sign at the beginning of the
acceleration lane.
Route 140/Route 24 Southbound ramp signalized intersection
Pavement Markings and Signs
•
There was an excessive amount of signage in a short distance facing Route 140
southbound drivers near the railroad crossing.
•
There is lack of spacing for effective overhead guide signing along Route 140 because of
railroad crossing, traffic signal, bridge and another traffic signal.
•
The end of the off-ramp to Route 140 southbound is striped for two lanes at the signal,
but there is no delineation guiding drivers into their respective receiving lanes. Audit
team members noted that it is being driven as one lane at times with drivers not realizing
they can use the two receiving lanes. This could be a contributing factor in some of the 7
sideswipe crashes at this location.
Page 10
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Signal Equipment
•
The signal heads facing ramp traffic do not have backplates. Drivers heading south on
Route 140 experience solar glare behind the signal heads. A backplate has the effect of
enhancing the visibility of a signal to road users, as it provides a dark contrasting
background to a signal head. The Route 140 signal faces have backplates.
•
Drivers on the right turn from the ramp to Route 140 southbound have difficulty seeing
signal faces due to large trucks. However, there were no reported angle crashes that
would be indicative of drivers not seeing these signal faces.
•
The overhead signal heads facing the right turns from the ramp appear to be close to the
minimum distance of 40 feet from the stop line. However, there were no reported angle
crashes that would be indicative of drivers not seeing these signal faces.
•
Drivers do not obey the “No Turn on Red” restriction facing the right turns from the
ramp. However, there were no reported angle accidents caused by this behavior.
•
Red Clearance times appear short. Red clearance intervals that are too short may not
provide vehicles enough time to clear the intersection before conflicting traffic is
assigned the right-of-way. This could be a contributing factor in some of the 6 angle
crashes at this location.
Geometric/Operations
•
Queues from the intersection routinely back up onto Route 24 during the weekday
afternoon. This could be a contributing factor in some of the 69 rear end accidents and 5
sideswipe crashes in this area.
•
Queues from the right turn from the ramp to Route 140 south are excessive and block the
left turn lane.
Route 140/Route 24 Northbound ramp signalized intersection
Pavement Markings and Signs
•
Drivers turning right from Route 140 northbound to Route 24 northbound do not always
yield to the signalized Route 140 southbound left turn. This could be a contributing
factor in 2 of the crashes at this location.
•
There were 7 Route 140 northbound out of control accidents. Many of these occurred on
wet roadways. This could be due to the speed of Route 140 northbound traffic.
•
The Route 140 southbound left turn pocket is not clearly defined.
Speed
•
Route 140 Northbound is a limited access highway with posted speeds of 55 mph that
transitions to an arterial with a 40 mph posted speed limit just prior to reaching the
intersection. RSA members observe that some vehicles are still traveling at excessive
speeds through the intersection.
Page 11
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Geometry
•
At the end of the Route 24 off-ramp to Route 140 northbound, an acceleration lane is
provided, but is foreshortened by the Route 24 bridge abutment.
Signal Equipment
•
One of the Route 140 northbound signal faces does not have backplates. Backplates have
the effect of enhancing the visibility of a signal to road users, as they provide a dark
contrasting background to a signal head.
•
Red Clearance times appear short. Red clearance intervals that are too short may not
provide vehicles enough time to clear the intersection before conflicting traffic is
assigned the right-of-way. This could be a contributing factor in the one angle crash at
this location.
•
There is no dilemma zone detection for Route 140 northbound, which in conjunction with
the high approach speed, may be a factor in the 17 rear end crashes in this direction.
Route 140
Lighting
•
The lighting level under the bridge is low, sometimes making it difficult to read signage
during the day.
Page 12
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Potential Safety Enhancements
The Audit team members offered potential safety enhancements that could be implemented to
mitigate the safety related observations that were noted in the previous section of this report.
Audit team members were encouraged to develop short, medium and long term safety
enhancements.
Route 24 Southbound north of Route 140
Operations
•
Widen Route 24 to three through lanes. This enhancement would improve operations and
in conjunction with the improvements at the interchange may reduce the rear end and
sideswipe crashes that are due to unexpected stopping/queuing.
•
Construct new ramp from Route 24 southbound to Route 140 northbound. This
enhancement would reduce the queue on Route 24 southbound and reduce the rear end
and sideswipe crashes.
•
Modify ramp from Route 24 southbound to Route 140 southbound to allow free flow
operations. Review downstream locations to verify that capacity issues are not pushed
downstream. This enhancement would reduce the queue on Route 24 southbound and
reduce the rear end and sideswipe crashes.
Pavement Markings and Signs
•
Modify lane markings so that it is clear that the rightmost lane is exit only. Replace the
broken white lane line with a dotted white lane line transitioning to a solid white lane
line. This may reduce the number of sideswipe crashes.
•
Consider an overhead sign denoting the lane usage. This may clarify proper lane usage
and may reduce the number of sideswipe crashes.
Geometry
•
Lengthen Route 24 southbound exit only lane to provide additional queue storage.
Although this improvement will lessen the occurrences of stopped traffic in travel lanes,
it may not be needed if changes to the ramp configuration at the interchange are
implemented.
Intelligent Transportation Systems (ITS)
•
Alert GPS manufacturers/information providers about the long queues, so that drivers are
not alerted about the exit after already passing the back of queue.
•
Consider adding variable message boards on Route 24 southbound alerting drivers during
times when long queues are present. This may reduce the number of rear end and
sideswipe crashes.
Page 13
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Route 24 Southbound Off-Ramp
Maintenance
•
Clear vegetation on inside of curve to improve visibility. This may reduce the number of
rear end crashes at this location.
Pavement Markings and Signs
•
Provide Route 140 directional signage earlier. Either relocate directional signage before
service signage or move all of the signage earlier.
•
Install Chevrons signs to warn drivers of the sharp curve. This may reduce the number of
out of control crashes.
Geometry
•
Consider superelevating the ramp, or increasing the rate of superelevation. This may
reduce the number of out of control crashes.
•
Reconstruct the ramp with a larger radius. This may reduce the number of out of control
crashes.
Drainage
•
Review/improve existing drainage.
•
Consider superelevating the ramp, or increasing the rate of superelevation. This may
reduce the number of out of control crashes.
Route 24 Southbound at Route 140 on-Ramp
Pavement Markings and Signs
•
Determine the applicability of Yield sign
•
Repair the pavement in this vicinity of the on-ramp. This may reduce the likelihood of
sideswipe crashes. There was only one reported sideswipe or angle crash at this location
in the previous 3 year period.
•
Delineate acceleration lane. This may reduce the likelihood of sideswipe crashes. There
was only one reported sideswipe or angle crash at this location in the previous 3 year
period.
Geometry
•
Widen shoulder.
•
Lengthen acceleration lane to improve the merge operations. This may reduce the
likelihood of sideswipe or angle crashes. There was two reported sideswipe or angle
crash at this location in the previous 3 year period.
Page 14
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Route 24 Northbound at Route 140 on-ramp
Pavement Markings and Signs
•
Determine the applicability of Yield sign
•
Delineate acceleration lane. This may reduce the likelihood of sideswipe or angle crashes.
There was two reported sideswipe or angle crashes at this location in the previous 3 year
period.
Route 140/Route 24 Southbound ramp signalized intersection
Pavement Markings and Signs
•
Provide dotted white extension lines directing the two right turn lanes into the correct
receiving lanes. This may reduce the likelihood of sideswipe crashes.
•
Provide dotted white lines at the entrance to the left turn lane to better delineate the left
turn lane.
•
Review Route 140 southbound signage and spacing near the railroad crossing.
o Provide D8 sign to Route 24 northbound with black-on-yellow LEFT LANE
legend.
•
Provide advance signage for Route 140 northbound left-turn lane to Route 24 on-ramp
Signal Equipment
•
Install reflective backplates on all signal heads to improve visibility. This may reduce the
number of rear end crashes at this location.
•
Consider adding supplemental post-mounted signal head facing right turns from ramp to
improve signal visibility.
•
Review signal timing, including clearance intervals. Proper clearance intervals may
reduce the number of angle crashes at this location.
•
Consider providing queue detection on ramp. This can reduce the southbound rear end
crashes by reducing the queuing on the Route 24 southbound mainline.
•
Review signal placement. Signal heads facing right turns from ramp are close to the
minimum required distance from the stop bar, limiting signal visibility.
•
Install dilemma zone detection to reduce the likelihood of vehicles arriving at the start of
the yellow interval. The can reduce the number of rear end crashes at this location.
•
Install emergency pre-emption to aid in emergency response.
Geometric/Operations
•
Modify ramp system so that Route 24 southbound ramp can operate as free-flow. This
would improve operations and reduce the number of rear end and sideswipe crashes on
Route 24 southbound and the Route 24 southbound off-ramp.
Page 15
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Route 140/Route 24 Northbound ramp signalized intersection
Pavement Markings and Signs
•
Provide dotted white lines at the entrance to the left turn lane to better delineate the left
turn lane.
•
Install supplemental Yield sign on channelizing island facing Route 140 northbound right
turn to clarify who has the right of way. This may reduce the likelihood of crashes
occurring when the drivers turning right from Route 140 northbound to Route 24
northbound fail to yield to the signalized Route 140 southbound left turn.
•
Review Route 140 northbound speed limit reduction. Consider installing additional
signage to reduce the excessive speeding. This may reduce the likelihood of Route 140
northbound rear end crashes.
Signal Equipment
•
Install reflective backplates on all signal heads to improve the visibility. This may reduce
the number of rear end crashes.
•
Review signal timing, including clearance intervals. Proper clearance intervals may
reduce the number of angle crashes.
•
Install dilemma zone detection to reduce the likelihood of vehicles arriving at the start of
the yellow interval. This may reduce the number of rear end crashes.
•
Install emergency pre-emption to improve emergency response.
Geometric/Operations
•
Consider superelevating the Route 140 northbound right turns onto ramps. This may
reduce the number of out of control crashes.
Route 140
Lighting
•
Install lighting under the Route 24 Bridge.
Pavement Markings and Signs
•
Provide warning sign indicating speed limit reduction on Route 140 northbound to reduce
excessive speeding. This may reduce the number of rear end crashes and out of control
crashes.
Multi-Modal Accommodation
•
Consider providing pedestrian/bike accommodation via a separated facility.
Page 16
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Summary of Road Safety Audit
For each safety enhancement noted in the previous section, the following table is a summary of
the proposed enhancement, its potential safety payoff, the estimated time frame for completion,
the estimated construction cost, and the responsible agency.
Safety payoff estimates are based on engineering judgment and are categorized as follows: low,
medium, and high. The time frame is categorized as short-term (<1 year), mid-term (1 to 3
years), or long-term (>3 years). The costs are categorized as low (<$10,000), medium ($10,000
to $50,000), or high (>$50,000).
For enhancements that are expected to be considered and/or incorporated into the design of the
Route 24/Route 140 interchange improvement project (Project No. 605888), the responsible
agency will be listed as “Project”. The Project is currently under design, with the preliminary
highway design (25% Design) to be submitted in early 2015.
Page 17
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Table 3. Potential Safety Enhancement Summary – Route 24 over Route 140
Safety Issue
Potential Safety Enhancement
Safety Payoff
Time Frame
Cost
Responsible Agency
Short Term
Low
MassDOT
Low
Short Term
Low
MassDOT
Low
Short Term
Low
MassDOT
Short Term
Low
MassDOT
Pavement Markings &
Signs
Route 24 Southbound
It is not clear that the
rightmost lane is exit only.
Replace broken white lane line
with a solid white lane line.
Low
Route 24 Southbound off-ramp
Driver confusion – Unclear
to drivers whether they
should stay to the left or
right of exit.
Provide Route 140 directional
signage earlier, before service
signage.
Sharp turn leading to out of
Install Chevrons signs.
control accidents
Route 24 Southbound on-ramp
Route 24 southbound onramp – Driver confusion
Determine the applicability of Yield
Sign
Low
Route 140 / Route 24 Southbound Ramp Signalized Intersection
Provide dotted white extension
lines directing the two right turn
Unnecessary lane changes
lanes into the correct receiving
lanes.
Low
Short Term
Low
MassDOT
Delineation
Provide dotted White Lines at the
entrance to the left turn lane.
Low
Short Term
Low
MassDOT
Excessive Signage
Review Route 140 southbound
signage and spacing near the
railroad crossing.
Low
Short Term
Low
MassDOT
Page 18
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Table 3. Potential Safety Enhancement Summary – Route 24 over Route 140
Safety Issue
Potential Safety Enhancement
Safety Payoff
Time Frame
Cost
Responsible Agency
Pavement Markings &
Signs (cont’d)
Route 140/Route 24 Northbound Ramp – Signalized intersection
Delineation
Provide dotted White Lines at the
entrance to the left turn lane.
Low
Short Term
Low
MassDOT
Unclear right of way
Install supplemental Yield sign on
channelizing island facing Route
140 northbound right turn.
Low
Short Term
Low
MassDOT
Excessive Speed
Review Route 140 northbound
speed limit reduction. Consider
installing additional signage.
Low
Short Term
Low
MassDOT
Page 19
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Table 3. Potential Safety Enhancement Summary – Route 24 over Route 140
Safety Issue
Potential Safety Enhancement
Safety Payoff
Time Frame
Cost
Responsible Agency
Intersection Control
Both Route 140/ Route 24 Ramp Signalized Intersections
Solar Glare
Install reflective backplates on all
signal heads.
Emergency Response
Install emergency pre-emption
Insufficient Clearance Time
Review Signal Timing, including
clearance intervals.
Install dilemma zone detection
Medium
Short-term
Low
MassDOT
Low
Short-Term
Low
MassDOT
Medium
Short-Term
Low
MassDOT
Low
Short-Term
Low
MassDOT
Route 140/Route 24 Southbound Ramp Signalized Intersection
Excessive Queuing
Consider providing queue
detection on ramp.
Low
Short-Term
Low
MassDOT
Signal Head Visibility
Review signal placement. Signal
heads facing right turns from ramp
seems close to stop bar.
Low
Short-Term
Low
MassDOT
Signal Head Visibility
Consider adding supplemental
post mounted signal head facing
right turns from ramp.
Low
Short-Term
Low
MassDOT
Page 20
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Table 3. Potential Safety Enhancement Summary – Route 24 over Route 140
Safety Issue
Potential Safety Enhancement
Safety Payoff
Time Frame
Cost
Responsible Agency
Medium
Long-Term
High
MassDOT
Construct new ramp from Route 24
Poor Operations/ Queueing southbound to Route 140
northbound.
High
Long-Term
High
Project
Modify ramp from Route 24
southbound to Route 140 to allow
free flow operations. Review
Poor Operations/ Queueing
downstream locations to verify that
capacity issues are pushed
downstream.
High
Long-Term
High
Project
Medium
Long-Term
High
MassDOT
Geometry
Route 24 Southbound
Poor Operations/ Queueing
Excessive Queuing
Widen Route 24 to three through
lanes.
Lengthen Route 24 southbound
exit only lane
Route 24 southbound off-ramp
Out of Control Crashes
Reconstruct the ramp with a larger
radius.
Medium
Long-Term
High
MassDOT
Out of Control Crashes
Consider superelevating the ramp,
or increasing the rate of
superelevation.
Medium
Long-Term
High
MassDOT
Mid-Term
High
MassDOT
Route 24 Southbound on-ramp
Short merge distance
Lengthen acceleration lane.
Low
Page 21
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Table 3. Potential Safety Enhancement Summary – Route 24 over Route 140
Safety Issue
Potential Safety Enhancement
Safety Payoff
Time Frame
Cost
Responsible Agency
Geometry (cont’d)
Route 140/ Route 24 Northbound Ramp Signalized Intersection
Out of Control crashes
Consider superelevating the Route
140 northbound right turns onto
ramp.
Medium
Mid-Term
Medium
MassDOT
Medium
Mid-Term
High
MassDOT
Drainage
Review/improve existing drainage
on Route 24 Southbound off-ramp.
Page 22
Road Safety Audit— Route 24 at Route 140
Prepared by Fay, Spofford & Thorndike
Table 3. Potential Safety Enhancement Summary – Route 24 over Route 140
Safety Issue
Potential Safety Enhancement
Safety Payoff
Time Frame
Cost
Responsible Agency
Install lighting under the Route 24
Bridge.
Low
Short-Term
Medium
MassDOT
Clear Vegetation on inside of
Route 24 southbound off-ramp
Low
Short Term
Low
MassDOT
Repair the pavement in this vicinity
of the Route 24 southbound onramp.
Medium
Mid-term
High
MassDOT
Alert GPS
manufacturers/information
providers about the long queues,
so that drivers are not alerted
about the exit after already passing
the back of queue.
Low
Short-term
Low
MassDOT
Consider adding variable message
boards on Route 24 southbound
alerting drivers during times when
long queues are present.
Low
Short-term
Low
MassDOT
Consider providing pedestrian/bike
accommodation on Route 140 via
a separated facility.
Medium
Long
High
MassDOT
Lighting
Maintenance
Visibility
Pavement and Geometry
Abrupt merging.
Intelligent Transportation
System (ITS)
Multi-Modal
Accommodation
Page 23
Appendix A. RSA Meeting Agenda
Road Safety Audit
Route 24/Route 140 Interchange Improvements
Thursday, December 11, 2014
Meeting Location:
Temporary Taunton City Hall
141 Oak Street
Taunton, MA 02780
Room: Council Chambers
9:00AM - 12:00PM
Type of meeting:
Road Safety Audit for Roadway Improvement Project
Attendees:
Invited Participants to Comprise a Multidisciplinary Team
Please bring:
Thoughts and Enthusiasm!!
9:00 AM
Meet in Conference Room/Welcome and Introductions
9:15 AM
Review of Site Specific Material
• Crash Summary
• Existing Geometries and Conditions
10:15 AM
Visit the Site via Recorded Videos
• Since the interchange does not permit pedestrians, we will review previously
recorded videos
• As a group, identify areas for improvement
11:00 AM
Post-Visit Discussion / Completion of RSA
• Discuss observations and finalize findings
• Discuss potential improvements and finalize recommendations
12:00 PM
Adjourn for the Day – but the RSA has not ended
Instructions for Participants:
• Before attending the RSA on December 11th, participants are encouraged to drive
through the Route 24/Route 140 interchange 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.
Appendix B. Safety Review Prompt List
Safety Review Prompt List
The Safety Review Prompt List provides basic safety-related questions to use when evaluating a given
roadway location. The prompt list should be considered when evaluating a roadway to design improve­
ments or conduct a Road Safety Audit. The primary purpose of the prompt list is to identify potential
road safety hazards. The list is meant to be general and should be used to prompt an evaluator as to
specific matters identified in the field that may have an adverse effect on road safety. The Safety Review
Prompt List is not a check of compliance with design standards.
This Prompt List represents the minimum that should be considered when exploring safety opportunities
and is not intended to address all aspects of safety.
A summary of the responses should be prepared to highlight potential safety improvement opportunities.
Speed
° Are posted speed limits consistent with speed regulations; are they adequate?
° Are design features consistent with the posted speed (passing opportunities, sight distance,
warning signs for horizontal and vertical curves, clearance intervals, sign placement, etc.)
° Are adequate controls in place for driver compliance with speed limits?
Multi-modal
° Have accommodations been provided for safe movement of pedestrians, bicycles, emergency
vehicles, public transportation, and commercial vehicles?
° What design features could be improved, added, or removed to enhance the safe mobility of the
various modes?
Pavement Markings
° Are there highly visible and retro reflective edge lines, center lines, and other pavement
markings?
° Do the pavement markings provide sufficient guidance to the road users? Can the placement
of the pavement markings be modified to improve guidance to road users?
Signs
° Are all signs retro reflective and visible for all roadway conditions, including placed free from
obstructions?
° Are signs located to maximize perception and reaction while minimizing intrusion in clear zones?
° Does the signage provide adequate guidance to road users for given road conditions?
° Are pavement markings and signs consistent in effectively guiding road users?
Intersection Control
° Do all signs (stop signs, lane assignments, street names, etc.) provide visible, clear,
non-conflicting messages?
° Is there clear, non-conflicting visibility of traffic control (signal heads, signs, and markings) from
all approach lanes?
° Has the potential of misrepresentation of intersection control been considered (at closely spaced
intersections or through control that is against expectation)?
° For signalized intersections, have the implications on safety been considered for the signal
phasing?
° Is there a safe means by which all modes can travel through the intersection?
Lighting
° Is lighting (from headlights and/or streetlights) adequate for specific roadway conditions and/or
use?
° If glare exists from sunlight or opposing headlights, are there countermeasures that can be
implemented to minimize potentially detrimental effects?
Obstructions
° Are there obstructions to sight lines or roadway guidance (signs, markings, etc.) that can be
removed, relocated, or minimized as part of this project?
° If obstructions or fixed objects exist but cannot be moved, can they be shielded (with guardrails,
etc.) or delineated (with reflectors) to improve road user safety? If so, what can be done?
Pavement
° Could the condition of the pavement impact mobility and safety (potholes, edge drop-offs, skid
resistance, etc)?
° What improvements can be made to minimize safety impacts?
Access Points and Traffic Generators
° Is the access control sufficient for the road’s function?
° Are site access points located to maximize safety while still providing adequate access?
° Have impacts of site developments been adequately accommodated for safe mobility of all
road users?
Parking
° Is parking clearly delineated and in conformance with signs, markings, and regulations?
° Might parking obstruct mobility/safety of pedestrians and other roadway users?
Weather Conditions
° Have accommodations been made for impacts from adverse weather condition (storage of snow,
removal of ponding, adequate drainage, signage of low salt areas, maintenance program for
snow removal, and catch basin clearing, etc.)?
Auxiliary Lanes
° Could taper locations and/or alignments contribute to safety challenges?
° Could lack of climbing lanes or passing zones cause driver frustration?
° Do acceleration/deceleration lane lengths necessitate additional signage and/or markings?
Animals
° Do animal migrations impact safety?
° Can measures be taken to reduce animal-vehicle conflicts?
Appendix C. Detailed Crash Data
Crash Data Summary Table
First Light Casino Taunton, MA
01/05/2010 - 12/31/2012
Crash
Diagram
Ref #
Crash Date
Crash Day
1
2
3
4
5
6
7
8
9
10
11
1/5/2010
1/5/2010
1/5/2010
1/6/2010
1/15/2010
1/22/2010
2/3/2010
2/4/2010
2/5/2010
2/12/2010
2/12/2010
Tuesday
Tuesday
Tuesday
Wednesday
Friday
Friday
Wednesday
Thursday
Friday
Friday
Friday
12
2/24/2010 Wednesday
13
14
15
16
3/8/2010
3/11/2010
3/17/2010
3/19/2010
Monday
Thursday
Wednesday
Friday
17
18
19
20
21
3/19/2010
3/28/2010
4/12/2010
4/15/2010
4/19/2010
Friday
Sunday
Monday
Thursday
Monday
22
23
4/27/2010 Tuesday
4/27/2010 Tuesday
24
25
26
27
5/4/2010
5/6/2010
5/7/2010
5/14/2010
28
5/19/2010 Wednesday
Tuesday
Thursday
Friday
Friday
29
30
31
32
5/22/2010
5/24/2010
5/25/2010
5/28/2010
Saturday
Monday
Tuesday
Friday
33
34
6/12/2010 Saturday
6/15/2010 Tuesday
35
36
37
38
39
40
6/23/2010
6/24/2010
6/30/2010
7/12/2010
7/22/2010
8/11/2010
41
42
43
8/12/2010 Thursday
8/16/2010 Monday
8/17/2010 Tuesday
Wednesday
Thursday
Wednesday
Monday
Thursday
Wednesday
Crash Time
Manner of Collision
7:43 AM
8:07 AM
8:05 AM
7:18 AM
4:35 PM
7:50 AM
11:15 AM
3:50 AM
4:45 PM
8:00 AM
5:36 PM
Angle
Rear-end
Rear-end
Angle
Rear-end
Sideswipe, same direction
Rear-end
Single vehicle crash
Rear-end
Single vehicle crash
Rear-end
Light Condition
Weather Condition
Road Surface
Ice
Ice
Ice
Dry
Dry
Dry
Dry
Ice
Dry
Ice
Dry
No improper driving
No improper driving
No improper driving
Failed to yield right of way
Followed too closely
Made an improper turn
Followed too closely
No improper driving
Followed too closely
No improper driving
Followed too closely
10:40 AM Single vehicle crash
Daylight
Rain
Wet
11:30 AM
5:32 PM
7:20 AM
4:01 PM
Rear-end
Sideswipe, same direction
Rear-end
Rear-end
Daylight
Dark - lighted roadway
Daylight
Daylight
Clear
Clear
Clear
Clear
Dry
Dry
Dry
Dry
Exceeded authorized speed limit
Failure to keep in proper lane or
running off road
No improper driving
No improper driving
No improper driving
43
Unknown
44
33
6:20 PM
2:51 PM
2:41 PM
4:07 PM
4:15 PM
Rear-end
Angle
Sideswipe, same direction
Rear-end
Rear-end
Daylight
Daylight
Daylight
Daylight
Daylight
Clear
Clear
Clear
Unknown
Clear
Dry
Dry
Dry
Dry
Dry
Followed too closely
Failed to yield right of way
No improper driving
Failed to yield right of way
No improper driving
27
Unknown
Unknown
18
52
7:18 AM Rear-end
7:53 AM Single vehicle crash
Daylight
Daylight
Rain
Rain
Wet
Wet
5:25 PM
6:30 PM
3:35 PM
5:12 PM
Daylight
Daylight
Daylight
Daylight
Cloudy
Unknown
Cloudy
Clear
Wet
Dry
Dry
Dry
Dark - roadway not lighted
Rain
Wet
Operating defective equipment
31
25
Made an improper turn
40
Disregarded traffic signs, signals,
road markings
29
26
Followed too closeley
Unknown Unknown
Followed too closely
42
45
Followed too closely
23
73
Failure to keep in proper lane or
running off road
24
Operating vehicle in erratic,
reckless, careless, negligent or
aggressive manner
Followed too closely
Followed too closely
Followed too closely
Rear-end
Rear-end
Rear-end
Rear-end
10:18 PM Single vehicle crash
12:00 AM
3:55 PM
7:33 AM
2:56 PM
Sideswipe, opposite direction
Rear-end
Rear-end
Rear-end
Dark - lighted roadway
Daylight
Daylight
Daylight
Clear
Clear
Clear
Clear
Dry
Dry
Dry
Dry
9:10 PM Single vehicle crash
8:04 AM Rear-end
Dark - lighted roadway
Daylight
Rain
Clear
Wet
Dry
5:24 PM
6:50 PM
4:25 PM
9:18 PM
9:00 AM
7:10 AM
Daylight
Daylight
Daylight
Dark - lighted roadway
Daylight
Daylight
Clear
Clear
Clear
Clear
Clear
Clear
Dry
Dry
Dry
Dry
Dry
Dry
Dark - lighted roadway
Daylight
Daylight
Clear
Clear
Clear
Dry
Dry
Dry
Sideswipe, same direction
Rear-end
Rear-end
Angle
Sideswipe, same direction
Rear-end
9:04 PM Rear-end
5:54 AM Rear-end
5:10 PM Single vehicle crash
8/19/2010 Thursday
2:50 PM Unknown
Daylight
Clear
Dry
8/22/2010 Sunday
8:30 PM Single vehicle crash
Dark - roadway not lighted
Cloudy
Wet
Dark - roadway not lighted
Rain
Wet
47
48
49
50
51
52
53
54
55
56
9/17/2010
9/17/2010
9/17/2010
9/18/2010
10/4/2010
10/6/2010
10/6/2010
10/6/2010
10/11/2010
10/14/2010
Friday
Friday
Friday
Saturday
Monday
Wednesday
Wednesday
Wednesday
Monday
Thursday
3:42 PM
7:20 PM
7:35 PM
3:12 PM
1:20 AM
3:54 PM
10:20 AM
11:23 AM
12:45 PM
5:42 PM
7:38 PM Single vehicle crash
Rear-end
Rear-end
Rear-end
Rear-end
Single vehicle crash
Rear-end
Single vehicle crash
Single vehicle crash
Rear-end
Rear-end
Daylight
Dark - lighted roadway
Dark - lighted roadway
Daylight
Dark - roadway not lighted
Daylight
Daylight
Daylight
Daylight
Daylight
Unknown
Clear
Clear
Cloudy
Clear
Cloudy
Rain
Rain
Clear
Clear
Dry
Dry
Dry
Wet
Dry
Wet
Wet
Wet
Dry
Dry
57
58
59
60
61
62
63
64
65
66
10/15/2010
10/20/2010
10/26/2010
10/28/2010
11/1/2010
11/3/2010
11/4/2010
11/4/2010
11/12/2010
11/12/2010
Friday
Wednesday
Tuesday
Thursday
Monday
Wednesday
Thursday
Thursday
Friday
Friday
2:29 PM
4:00 PM
5:25 PM
5:57 AM
5:37 PM
10:15 PM
12:42 PM
2:08 PM
7:48 AM
5:00 PM
Single vehicle crash
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Single vehicle crash
Rear-end
Rear-end
Rear-end
Daylight
Daylight
Daylight
Dawn
Dusk
Dark - roadway not lighted
Daylight
Daylight
Daylight
Dusk
Unknown
Unknown
Clear
Clear
Unknown
Clear
Rain
Rain
Unknown
Clear
Wet
Dry
Dry
Dry
Dry
Dry
Wet
Wet
Dry
Dry
59
27
50
Unknown
52
19
21
41
53
28
28
Driver 2
Age
Unknown
Cloudy
Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Cloudy
44
8/23/2010 Monday
Driver 1
Age
Daylight
Daylight
Daylight
Daylight
Dusk
Daylight
Daylight
Dark - roadway not lighted
Dusk
Daylight
Dark - roadway not lighted
45
46
Driver Contributing Codes
Driver 5 Driver 6
Age
Age
48
45 Unknown
52
5
36
5
6
9
9
26
38
25 Unknown
30
39
31
50
65
34
64
Operating defective equipment
No improper driving
Failure to keep in proper lane or
running off road
Followed too closely
Followed too closely
Unknown
No improper driving
Followed too closely
51
56
67
Followed too closely, Inattention
Other improper action
No improper driving
Disregarded traffic signs, signals,
road markings
20
18
20
68
20
85
31
49
56
62
39
63
28
22
20
46 Unknown
61
44
5
6
6
5
5
8 Worn tires
5
42
38
30
5
5
5
4
33
8
36
6 Drunk driving
5
3
2
52
6 As operator was making left onto Rte 140 North, tires locked up
5
26
39
27
37
45
44
6
5
5
6
5
5
6
5
8 Was cut off by car coming off ramp causing her to apply brakes and lose control
6 Did not stop for red light
21
8
43
43
48
45
27
24
37
20
Unknown
22
24
Comments
Figure
8
8
8
6
3
5 While trying to change lanes in order to take ramp to Route 24 NB, driver cut in front causing crash
5
5
5
5
5
29
30
40
33
40
38
47
Followed too closely
Followed too closely
Followed too closely
Followed too closely
No improper driving
Followed too closely
Driving too fast for conditions
Driving too fast for conditions
Inattention
Followed too closely
Failure to keep in proper lane or
running off road
Followed too closely
Followed too closely
Other improper action
Followed too closely
Followed too closely
Driving too fast for conditions
Made an improper turn
Inattention
Unknown
Driver 4
Age
20
47
43
25
50
39
46
Exceeded authorized speed limit
Failure to keep in proper lane or
running off road
Driver 3
Age
26
44
56
26
33 Unknown
37
59
22
51
22
56
49
60
55
27
20 Unknown
51
21
20 Unknown
24
40
38
36
49
21
28
51
26
Unknown
59
8
In order to avoid hitting car in front of him, driver (MV1) swerved into middle lane but striking car (MV2) to
2 his left. MV2 was pushed into left lane where it was rear-ended by MV3
2
2
5
8
5
5
8
5
5
4 Driver stated he lost control of his vehicle after attempting to avoid an unidentified vehicle
5
5
5
5
5
5
9
6
5
Crash Data Summary Table
First Light Casino Taunton, MA
01/05/2010 - 12/31/2012
Crash
Diagram
Ref #
Crash Date
Crash Day
Crash Time
67
68
69
70
11/17/2010
11/17/2010
11/21/2010
11/24/2010
Wednesday
Wednesday
Sunday
Wednesday
9:55 AM
4:24 PM
5:35 PM
5:05 PM
71
72
73
74
75
76
77
78
12/7/2010
12/8/2010
12/15/2010
12/28/2010
12/28/2010
1/10/2011
1/14/2011
1/14/2011
Tuesday
Wednesday
Wednesday
Tuesday
Tuesday
Monday
Friday
Friday
1:55 PM
6:26 PM
10:31 AM
7:32 AM
8:24 AM
11:17 AM
7:40 AM
9:16 AM
Manner of Collision
Light Condition
Weather Condition
Road Surface
Single vehicle crash
Rear-end
Rear-end
Rear-end
Daylight
Dusk
Dark - lighted roadway
Dark - lighted roadway
Cloudy
Unknown
Clear
Unknown
Wet
Dry
Dry
Dry
Made an improper turn
No improper driving
Other improper action
Followed too closely
Angle
Rear-end
Rear-end
Angle
Rear-end
Angle
Rear-end
Rear-end
Daylight
Dark - lighted roadway
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Cloudy
Unknown
Clear
Clear
Clear
Clear
Cloudy
Cloudy
Dry
Dry
Dry
Ice
Ice
Dry
Dry
Ice
Driver 1
Age
20
60
56
29
Driver 2
Age
54
39
54
2:47 PM Angle
Daylight
Clear
Dry
5:55 PM
4:04 PM
5:10 PM
5:45 AM
4:00 PM
Daylight
Daylight
Daylight
Dark - roadway not lighted
Daylight
Clear
Clear
Clear
Clear
Clear
Dry
Dry
Dry
Dry
Dry
2:45 PM Unknown
4:25 PM Rear-end
2:45 PM Rear-end
Daylight
Daylight
Daylight
Clear
Cloudy
Cloudy
Dry
Wet
Wet
Exceeded authorized speed limit
81
28
Followed too closely
46
16
Driving too fast for conditions
35
26
Driving too fast for conditions
49
42
Driving too fast for conditions
55
57
Visibility obstructed
Unknown
Followed too closely
40
35
No improper driving
34
43
Failure to keep in proper lane or
running off road
54
47
Driving too fast for conditions
44
23
Disregarded traffic signs, signals,
road markings
51
39
Followed too closely
44
22
Followed too closely
52
63
Other improper action
36
64
Followed too closely
31
23
Over-correcting/over-steering
34
Followed too closely
41
30
Operating vehicle in erratic,
reckless, careless, negligent or
aggressive manner
25
34
No improper driving
38
27
No improper driving
41 Unknown
Followed too closely
21
23
Failed to yield right of way
24
57
Followed too closely
60
65
Followed too closely
41
41
Followed too closely
22
49
Disregarded traffic signs, signals,
road markings
21
21
Physical impairment
41
No improper driving
30
36
Followed too closely
25
52
Followed too closely
22
59
Followed too closely
38
18
Followed too closely
56
60
Inattention
27
60
Followed too closely
34
36
Followed too closely
53
26
No improper driving
23 Unknown
Operating vehicle in erratic,
reckless, careless, negligent or
aggressive manner
46
No improper driving
21
No improper driving
51
25
Followed too closely
49
19
Followed too closely
23
51
Driving too fast for conditions
47
44
No improper driving
36
51
Followed too closely
33
55
Inattention
47
19
No improper driving
Unknown
Operating vehicle in erratic,
reckless, careless, negligent or
aggressive manner
27
44
Failure to keep in proper lane or
running off road
44
45
Inattention
21
76
Followed too closely
43
25
Followed too closely
65
48
Followed too closely
28
46
Failure to keep in proper lane or
running off road
56
40
Followed too closely
57
26
Driving too fast for conditions
Unknown Unknown
2:05 PM Sideswipe, same direction
4:05 PM Rear-end
Daylight
Dusk
Clear
Clear
Dry
Dry
No improper driving
Followed too closely
87
35
48
51
12/4/2011 Sunday
12/5/2011 Monday
8:14 PM Single vehicle crash
5:15 PM Rear-end
Dark - roadway not lighted
Dark - roadway not lighted
Clear
Clear
Dry
Dry
21
22
27
12/5/2011 Monday
7:10 AM Single vehicle crash
Daylight
Clear
Dry
Exceeded authorized speed limit
Inattention
Failure to keep in proper lane or
running off road
79
80
1/22/2011 Saturday
2/2/2011 Wednesday
4:10 PM Angle
6:18 PM Angle
Daylight
Dark - roadway not lighted
Unknown
Unknown
Dry
Ice
81
82
83
84
85
86
87
2/14/2011
2/22/2011
2/23/2011
3/1/2011
3/4/2011
3/8/2011
3/8/2011
Monday
Tuesday
Wednesday
Tuesday
Friday
Tuesday
Tuesday
5:52 AM
3:04 PM
2:54 PM
8:09 AM
5:33 PM
7:52 AM
7:58 AM
Angle
Rear-end
Rear-end
Sideswipe, same direction
Rear-end
Single vehicle crash
Rear-end
Dark - lighted roadway
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Dry
Dry
Dry
Dry
Dry
Dry
Dry
88
89
90
91
92
93
94
95
3/9/2011
3/24/2011
4/1/2011
4/2/2011
4/12/2011
4/14/2011
5/2/2011
5/11/2011
Wednesday
Thursday
Friday
Saturday
Tuesday
Thursday
Monday
Wednesday
8:25 AM
4:09 PM
3:43 AM
6:25 PM
3:00 PM
4:00 PM
4:18 PM
7:15 AM
Single vehicle crash
Rear-end
Sideswipe, same direction
Rear-end
Angle
Rear-end
Rear-end
Rear-end
Daylight
Daylight
Dark - lighted roadway
Daylight
Daylight
Daylight
Daylight
Daylight
Clear
Clear
Unknown
Clear
Clear
Clear
Clear
Unknown
Dry
Dry
Snow
Dry
Dry
Dry
Dry
Dry
96
97
98
99
100
101
102
103
104
105
106
5/30/2011
6/10/2011
6/19/2011
6/20/2011
6/24/2011
7/15/2011
7/19/2011
7/21/2011
8/2/2011
8/3/2011
8/4/2011
Monday
Friday
Sunday
Monday
Friday
Friday
Tuesday
Thursday
Tuesday
Wednesday
Thursday
10:31 PM
1:51 PM
2:34 PM
4:35 PM
3:20 PM
2:55 PM
4:31 PM
12:45 PM
5:00 PM
4:21 PM
2:50 PM
Head-on
Single vehicle crash
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Dark - lighted roadway
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Daylight
Clear
Clear
Unknown
Clear
Clear
Clear
Clear
Clear
Clear
Unknown
Unknown
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Dry
107
108
109
110
111
112
113
114
115
116
8/10/2011
8/15/2011
8/19/2011
8/24/2011
8/24/2011
8/30/2011
9/30/2011
10/2/2011
10/4/2011
10/6/2011
Wednesday
Monday
Friday
Wednesday
Wednesday
Tuesday
Friday
Sunday
Tuesday
Thursday
9:00 PM
10:50 AM
5:50 PM
3:25 PM
11:36 AM
4:53 AM
5:46 PM
10:45 AM
7:52 PM
3:00 AM
Unknown
Single vehicle crash
Rear-end
Rear-end
Sideswipe, same direction
Sideswipe, same direction
Rear-end
Rear-end
Unknown
Single vehicle crash
Unknown
Daylight
Daylight
Daylight
Daylight
Dark - roadway not lighted
Daylight
Daylight
Unknown
Dark - roadway not lighted
Unknown
Unknown
Clear
Clear
Unknown
Clear
Clear
Clear
Unknown
Unknown
Unknown
Wet
Dry
Dry
Dry
Dry
Dry
Dry
Unknown
Dry
117
Driver Contributing Codes
10/8/2011 Saturday
118
119
120
121
122
10/9/2011
10/15/2011
10/18/2011
10/20/2011
11/18/2011
Sunday
Saturday
Tuesday
Thursday
Friday
123
124
125
11/22/2011 Tuesday
11/23/2011 Wednesday
11/23/2011 Wednesday
126
127
11/24/2011 Thursday
11/28/2011 Monday
128
129
130
Sideswipe, same direction
Rear-end
Rear-end
Rear-end
Rear-end
17
Driver 3
Age
Driver 4
Age
Driver 5 Driver 6
Age
Age
Comments
Figure
5 In addition to wet roads, vehicle had low tire tread and failed inspection sticker
5
6
5
MV1 traveling NB on Route 24 in right lane and drifts across the gore lines at Exit 12B. He crosses grassy
field and T-bones MV2 causing MV2 to crash into guardrail and flip two times. Operator of MV2 is ejected
and pronounced dead. Operator of MV1 dies days later in hospital. Evidence shows neither operator was
4 wearing seatbelt and speed was a factor in causing MV1 to lose control
5
6
4
9
6
8
8
46
2
5
6
5
6
6
5
4
5
31
27
24
41
27
61
23
56
50
67
36
23
37
Both drivers stated they had green lights. It is unknown who had green light
Tractor trailer in left lane and car trying to turn right and car gets sideswiped
Driver brakes and veers to right to avoid collision with heavy traffic and strikes guardrail
Driver claims foot slipped off of break
5
5
4
5
6
5
5
3
5
2 Police officer opinion that driver was impaired and under the influence of lorazepam
6
5
5
5
5
5
5
5
5
2 Drunk driving
5
5
5
4
5
5
6
5
8
25
2 Driver fell asleep at the wheel
6 Tractor trailer in left lane and car trying to turn right and car gets sideswiped
6
5
9
5
36
51
16
86
62
6 Tractor trailer in left lane and car trying to turn right and car gets sideswiped
5
5
As MV1 & 2 approached on-ramp at Exit 12, an unidentified vehicle was attempting to merge into right
8 lane. To avoid collision with vehicle, MV2 moved to the left then collided with MV1
5
5
5
8
Crash Data Summary Table
First Light Casino Taunton, MA
01/05/2010 - 12/31/2012
Crash
Diagram
Ref #
Crash Date
Crash Day
Crash Time
Manner of Collision
Light Condition
Weather Condition
Road Surface
131
132
133
134
135
136
137
138
139
140
141
142
143
144
12/8/2011
12/15/2011
12/18/2011
12/21/2011
12/22/2011
12/23/2011
12/29/2011
12/31/2011
12/31/2011
1/4/2012
1/7/2012
1/11/2012
1/11/2012
1/24/2012
Thursday
Thursday
Sunday
Wednesday
Thursday
Friday
Thursday
Saturday
Saturday
Wednesday
Saturday
Wednesday
Wednesday
Tuesday
7:25 AM
9:01 PM
1:11 PM
6:11 PM
5:27 PM
2:32 PM
4:15 PM
7:35 AM
1:02 PM
4:10 PM
5:30 AM
5:25 PM
6:35 PM
5:23 PM
Single vehicle crash
Single vehicle crash
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Single vehicle crash
Single vehicle crash
Sideswipe, same direction
Single vehicle crash
Rear-end
Rear-end
Rear-end
Daylight
Dark - roadway not lighted
Daylight
Daylight
Dark - roadway not lighted
Daylight
Dark - roadway not lighted
Daylight
Daylight
Dusk
Dark - lighted roadway
Dark - roadway not lighted
Dark - roadway not lighted
Dark - roadway not lighted
Unknown
Clear
Clear
Clear
Clear
Cloudy
Unknown
Clear
Cloudy
Clear
Clear
Unknown
Unknown
Clear
Wet
Dry
Dry
Dry
Dry
Dry
Dry
Dry
Wet
Dry
Dry
Dry
Dry
Dry
145
146
147
148
149
150
151
152
153
154
155
2/2/2012
2/17/2012
2/17/2012
2/24/2012
2/29/2012
3/5/2012
3/9/2012
3/16/2012
3/22/2012
3/23/2012
3/29/2012
Thursday
Friday
Friday
Friday
Wednesday
Monday
Friday
Friday
Thursday
Friday
Thursday
7:45 AM
7:00 PM
2:46 PM
5:20 PM
2:40 PM
4:38 PM
5:50 PM
5:13 PM
7:44 AM
6:27 AM
1:35 PM
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Rear-end
Sideswipe, same direction
Rear-end
Daylight
Dark - roadway not lighted
Daylight
Dark - lighted roadway
Daylight
Daylight
Dark - roadway not lighted
Daylight
Daylight
Daylight
Daylight
Clear
Unknown
Clear
Clear
Unknown
Clear
Clear
Clear
Clear
Clear
Cloudy
Dry
Dry
Dry
Dry
Wet
Dry
Dry
Dry
Dry
Dry
Dry
156
157
158
159
3/30/2012
4/3/2012
4/3/2012
4/5/2012
Friday
Tuesday
Tuesday
Thursday
7:42 AM
3:55 PM
3:41 PM
4:05 PM
Sideswipe, same direction
Rear-end
Rear-end
Rear-end
Daylight
Daylight
Daylight
Daylight
Clear
Clear
Clear
Clear
Dry
Dry
Dry
Dry
Driver Contributing Codes
Failure to keep in proper lane or
running off road
No improper driving
Inattention
Followed too closely
No improper driving
No improper driving
Followed too closely
Driving too fast for conditions
Made an improper turn
No improper driving
Fatigued/asleep
Followed too closely
Followed too closely
Followed too closely
160
4/23/2012 Monday
1:26 PM Single vehicle crash
Daylight
Clear
Dry
161
162
5/9/2012 Wednesday
5/10/2012 Thursday
1:05 AM Single vehicle crash
1:55 PM Rear-end
Dark - roadway not lighted
Daylight
Rain
Clear
Wet
Dry
163
164
5/13/2012 Sunday
5/29/2012 Tuesday
6:00 PM Sideswipe, same direction
1:40 PM Rear-end
Daylight
Daylight
Clear
Unknown
Dry
Dry
165
166
5/31/2012 Thursday
6/5/2012 Tuesday
10:30 AM Sideswipe, same direction
9:25 AM Single vehicle crash
Daylight
Daylight
Clear
Rain
Dry
Wet
167
168
169
170
6/6/2012
6/8/2012
6/13/2012
7/30/2012
Wednesday
Friday
Wednesday
Monday
10:54 AM
4:20 PM
5:19 PM
2:14 PM
Single vehicle crash
Rear-end
Rear-end
Rear-end
Daylight
Daylight
Daylight
Daylight
Clear
Clear
Clear
Clear
Dry
Dry
Dry
Dry
171
172
173
174
8/10/2012
8/13/2012
8/16/2012
8/18/2012
Friday
Monday
Thursday
Saturday
6:45 PM
9:50 PM
3:55 PM
11:15 AM
Rear-end
Rear-end
Rear-end
Single vehicle crash
Daylight
Daylight
Daylight
Daylight
Rain
Clear
Clear
Unknown
Wet
Dry
Dry
Wet
175
176
8/21/2012 Tuesday
8/23/2012 Thursday
Daylight
Daylight
Clear
Clear
Dry
Dry
177
178
179
180
8/26/2012
9/4/2012
9/8/2012
9/26/2012
Sunday
Tuesday
Saturday
Wednesday
11:20 AM
7:45 AM
6:32 PM
5:15 PM
Sideswipe, same direction
Rear-end
Single vehicle crash
Rear-end
Daylight
Daylight
Daylight
Daylight
Unknown
Cloudy
Rain
Unknown
Dry
Dry
Wet
Dry
181
182
183
184
185
186
187
188
189
190
191
192
10/2/2012
10/3/2012
10/8/2012
10/8/2012
10/12/2012
10/22/2012
11/7/2012
11/8/2012
11/11/2012
11/13/2012
11/14/2012
12/5/2012
Tuesday
Wednesday
Monday
Monday
Friday
Monday
Wednesday
Thursday
Sunday
Tuesday
Wednesday
Wednesday
10:10 PM
9:33 AM
3:46 PM
7:15 PM
3:42 PM
4:30 PM
12:21 PM
2:38 PM
6:45 PM
7:33 AM
2:14 PM
5:13 PM
Head-on
Single vehicle crash
Rear-end
Rear-end
Rear-end
Rear-end
Single vehicle crash
Angle
Rear-end
Single vehicle crash
Sideswipe, same direction
Rear-end
Dark - lighted roadway
Daylight
Unknown
Dark - roadway not lighted
Daylight
Daylight
Daylight
Daylight
Dark - lighted roadway
Daylight
Daylight
Dusk
Rain
Cloudy
Cloudy
Unknown
Clear
Clear
Rain
Rain
Unknown
Clear
Clear
Clear
Wet
Wet
Dry
Dry
Dry
Dry
Wet
Wet
Dry
Wet
Dry
Dry
Daylight
Clear
Dry
Inattention
Followed too closely
Physical impairment
Followed too closely
Followed too closely
Followed too closely
Followed too closely
Followed too closely
Followed too closely
Followed too closely
Inattention
Failure to keep in proper lane or
running off road
Followed too closely
Followed too closely
No improper driving
Failure to keep in proper lane or
running off road
Failure to keep in proper lane or
running off road
Followed too closely
Failure to keep in proper lane or
running off road, Inattention
No improper driving
Failure to keep in proper lane or
running off road
No improper driving
Failure to keep in proper lane or
running off road
Followed too closely
Followed too closely
Followed too closely
Other improper action, Followed
too closely
Followed too closely
Followed too closely
No improper driving
Failure to keep in proper lane or
running off road
Followed too closely
Failure to keep in proper lane or
running off road
Followed too closely
Driving too fast for conditions
Followed too closely
Disregarded traffic signs, signals,
road markings
Driving too fast for conditions
Followed too closely
Followed too closely
Followed too closely
Distracted
No improper driving
No improper driving
Followed too closely
No improper driving
Inattention
Inattention
Failure to keep in proper lane or
running off road
Dark - lighted roadway
Dark - roadway not lighted
Daylight
Daylight
Dark - roadway not lighted
Rain
Cloudy
Clear
Cloudy
Clear
Wet
Dry
Wet
Dry
Dry
Followed too closely, Inattention
No improper driving
Followed too closely
Followed too closely
Fatigued/asleep
193
194
195
196
197
198
12/6/2012 Thursday
12/7/2012
12/14/2012
12/18/2012
12/19/2012
12/23/2012
Friday
Friday
Tuesday
Wednesday
Sunday
2:54 PM Sideswipe, same direction
3:55 PM Rear-end
9:30 AM Sideswipe, same direction
4:37 PM
6:15 PM
3:01 PM
7:00 AM
12:00 AM
Rear-end
Rear-end
Rear-end
Rear-end
Sideswipe, same direction
Driver 1
Age
Driver 2
Age
Driver 3
Age
30
18
63
57
23
34
47
20
30
42
30
30
19
60
50
59
43
22
20
20
30
23
52
28
21
43
68
23
51
47
22
20
24
42
29
67
46
61
20
57
68
38
60
56
20
28
22 Unknown
37
45
22
20
33
Driver 4
Age
Driver 5 Driver 6
Age
Age
57
44
42
23
34
37
39
51
19
33
Comments
Figure
8
4
6
5
5 Mechanical brake failure
5
5
5 Operator stated took ramp at last minute at a high speed
5
4
6 Driver stated he might have fallen asleep. Police found alcohol in car
5
5
5
Driver stated she "dropped a call" on her cell phone and "looked down" at her phone, taking her eyes off
6 road
5
5 Drug related
5
9
2
2
5
9
5
5
6
5
2
5
39
5
17
Unknown Unknown
6
6
53
53
Unknown Unknown
6
4
Unknown
Unknown
6 Tractor trailer in left lane and car trying to turn right and car gets sideswiped
8
Unknown
Unknown
Unknown Unknown Unknown Unknown
Unknown Unknown
32
48
46
70
55
22
19
20
66
33 Unknown
58
67
Unknown
52
25
19
49
5
5
5
5
46
43
28
6 Tractor trailer in left lane and car trying to turn right and car gets sideswiped
5
23
5
5
5 Strikes a large puddle of standing water causing her to lose control
2
19
39
22
19
27
31
31
19
Unknown
29
27
17
67
59
34
17
54
30
29
17
62 Unknown
26
32
41
60
17
24
23
27
18
24
36
49
26
31
68
48
49
8
5
9
5
61
6
8
5
5
3
5
5
5
6
6
6
6
Failed to stop for red light
Driver stated he sneezed which caused him to lose attention
Tires were balding
Tractor trailer in left lane and car trying to turn right and car gets sideswiped
Construction on the ramp
34
23
43
7 Driver stated she looked down to get a drink
5
5
5 Previous accident north caused traffic to backup
2
Crash Data Summary Table
First Light Casino Taunton, MA
01/05/2010 - 12/31/2012
Crash
Diagram
Ref #
Crash Date
Crash Day
Crash Time
Manner of Collision
Light Condition
Weather Condition
Road Surface
Driver Contributing Codes
199
200
12/28/2012 Friday
12/31/2012 Monday
12:23 PM Rear-end
4:40 PM Rear-end
Daylight
Dark - roadway not lighted
Clear
Unknown
Dry
Dry
Followed too closely
Followed too closely
201
202
203
204
12/31/2012
3/2/2011
1/21/2012
6/6/2012
1:27 PM
12:28 PM
2:46 PM
11:34 AM
Daylight
Daylight
Daylight
Daylight
Clear
Clear
Snow
Cloudy
Dry
Dry
Snow
Dry
205
206
6/20/2011 Monday
11/14/2011 Monday
Daylight
Dark - lighted roadway
Clear
Clear
Dry
Dry
Failed to yield right of way
Failed to yield right of way
Failed to yield right of way
Failed to yield right of way
Followed too closely, Operating
vehicle in erratic, reckless,
careless, negligent or aggressive
manner
Failed to yield right of way
Monday
Wednesday
Saturday
Wednesday
Angle
Sideswipe, same direction
Angle
Angle
3:20 PM Rear-end
6:18 PM Angle
Driver 1
Age
35
40
Driver 2
Age
59
33
18
42
Unknown Unknown
56
52
25
56
33
28
60
18
Driver 3
Age
53
Driver 4
Age
Driver 5 Driver 6
Age
Age
Comments
Figure
2
5
MV1 was traveling in far left lane when abruptly changed lanes to take Exit 12 causing to strike MV2. MV1
5 stated was not familiar with area
6
7
7
7
7
Appendix D.
Crash Cluster Map