ROAD SAFETY AUDIT
Route 114 at Interstate I-495 Northbound Ramps
City of Lawrence
July 30, 2015
Prepared For:
Massachusetts Department of Transportation
Prepared By:
Toole Design Group
33 Broad Street, 4th Floor
Boston, MA 02109
Road Safety Audit—Route 114 at Interstate 495 - Lawrence, Massachusetts
Prepared by Toole Design Group
Table of Contents
Background ................................................................................................................................. 1
Project Location Description ..................................................................................................... 2
Audit Observations and Potential Enhancements ................................................................... 4
Summary of Road Safety Audit ............................................................................................... 10
List of Appendices
Appendix A.
Appendix B.
Appendix C.
RSA Meeting Agenda
RSA Audit Team Contact List
Detailed Crash Data
List of Tables
Table 1.
Table 2.
Participating Audit Team Members ....................................................................................... 1
Potential Safety Enhancement Summary ............................................................................. 11
Road Safety Audit—Route 114 at Interstate 495 - Lawrence, Massachusetts
Prepared by Toole Design Group
Background
The Massachusetts Department of Transportation (MassDOT) Highway Division Safety Section has
conducted a Road Safety Audit (RSA) for the intersection of Route 114 (Winthrop Avenue) and the
Interstate 495 northbound ramps in the City of Lawrence, Massachusetts in support of an ongoing design
project. An RSA is required to be performed during the design process for any MassDOT project that
includes a high crash location. The goal of the RSA is to identify safety issues and provide potential
enhancements to improve safety for all roadway users. Additionally, the potential enhancements are
categorized by timeframe and cost which allows the responsible agencies to determine when to make
proposed implementations.
Toole Design Group (TDG) conducted an RSA on Tuesday, June 30, 2015. The audit was held at the
Lawrence Community Development Department in Downtown Lawrence. Members of the audit team
discussed safety issues, conducted a site visit, and determined countermeasures during the audit on the
infrastructure and operating conditions of the subject intersection. The members of the audit team
comprised of representatives from local, regional, and state agencies ranging from emergency responders
to transportation planners and engineers. The members and their affiliations are provided in Table 1.
Contact information for the audit team members are provided in Appendix B.
Table 1. Participating Audit Team Members
Audit Team Member
Agency/Affiliation
Theresa Park
City of Lawrence Planning Director
Brian Moriarty
City of Lawrence Fire Chief
Jim Terlizzi
Merrimack Valley Planning Commission
Anthony Komornick
Merrimack Valley Planning Commission
Timothy Paris
MassDOT District 4 Projects
John Gregg
MassDOT District 4 Traffic Operations
Derek Caldwell
MassDOT District 4 Traffic
Buu Tran
MassDOT Boston Traffic
Corey O’Connor
MassDOT Boston Traffic
Patrick Baxter
Toole Design Group
Shannon Brown
Toole Design Group
Page 1
Road Safety Audit—Route 114 at Interstate 495 - Lawrence, Massachusetts
Prepared by Toole Design Group
Project Location Description
The study area includes the intersection of Route 114 (Winthrop Avenue) and the Interstate 495
northbound ramps, as shown in Figure 1. The intersection is recorded as a Merrimack Valley Planning
Commission high crash location.
Route 114 is a state-owned roadway classified by the MassDOT Office of Transportation Planning as a
principal arterial. According to the MassDOT Transportation Data Management System, 2006 traffic
volumes on Route 114 at the interchange were 32,900 vehicles per day east of the interchange and 22,700
vehicles per day west of the interchange. Route 114 is subject to a speed limit of 35 miles per hour
according to the recorded Speed Regulations, and provides two travel lanes in each direction plus left turn
lanes approaching the on-ramp intersections. No bicycle facilities are provided on Route 114 within the
study area. A sidewalk is provided on the south side of Route 114 in the study area, however it
terminates at the west edge of the I-495 bridge to the west and at the Gulf gas station to the east. No
crosswalks or pedestrian signals are provided at the intersection.
Interstate 495 a state-owned roadway classified by the MassDOT Office of Transportation Planning as an
interstate. The study area intersection consists of two off-ramps and one on-ramp for Interstate 495
northbound. According to the MassDOT Transportation Data Management System, 2014 traffic volumes
on the I-495 northbound off-ramps to Route 114 east and west were 1,420 vehicles per day and 4,700
vehicles per day, respectively. The northbound on-ramp provides a right-turn slip lane from the
westbound direction and a left turn lane from the eastbound direction. 2014 traffic volumes on the
northbound on-ramp were 9,010 vehicles per day.
The intersection of Route 114 and the Interstate 495 northbound ramps is signalized with span wire
mounted signal heads. The northbound ramps include a single northbound on-ramp with access from
both directions on Route 114 at the signalized intersection. The interchange provides separated
northbound off-ramps for vehicles heading in each direction on Route 114: the ramp to Route 114 east
approaches from the south, intersecting west of the traffic signal, and is restricted to right turns only; the
ramp to Route 114 west approaches from the north via a loop ramp, also intersecting west of the signal
with a right-turn only restriction. Route 114 westbound provides a right turn slip lane to the northbound
on-ramp and two through lanes, the eastbound approach provides two through lanes and one left turn lane.
The traffic signal provides two signal phases, including a through phase for Route 114 and a left turn
phase for left turns to the northbound on-ramp. Eastbound through traffic operates continuously as the
signal provides no conflicting phases. Off-ramp traffic is not controlled by the signal. No pedestrian
crosswalks or signals are provided at the intersection.
Page 2
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Road Safety Audit: Lawrence, MA
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Road Safety Audit—Route 114 at Interstate 495 - Lawrence, Massachusetts
Prepared by Toole Design Group
Project Data
Audit team members received a meeting packet prior to the RSA including a meeting agenda (Appendix
A), study area details, and crash data details. The crash data details and collision diagrams, graphical
representation of the crash data, are provided in Appendix C. The audit members were asked to review
the packet and visit the RSA study area prior to the meeting. Safety issues were identified by the team at
the beginning of the RSA, followed by a field visit to the subject intersections. The audit team finished
the meeting by determining appropriate countermeasures for the safety issues discussed.
The crash data and collision diagrams were based on crashes that were reported by Massachusetts State
Police and the Lawrence Police Department and occurred between January 2011 and December 2013.
According to the data, approximately 27 crashes were reported at the intersection during the three year
time period.
During the study period, 27 crashes were reported at the intersection of Route 114 at the Interstate 495
ramps. Of those crashes, the majority were rear-end crashes (59 percent – 16 crashes). The remaining
crashes included angle crashes (22 percent – 6 crashes), sideswipe crashes (15 percent – 4 crashes), and
head on crashes. The most common time period for crashes was the afternoon peak period between 2:00
and 4:00 PM.
Audit Observations and Potential Enhancements
During the RSA, the audit team identified the safety issues and discussed potential safety enhancements
to address the issues. Several of the safety issues identified by the audit team were:
•
•
•
•
•
•
•
Congestion;
Driveway turning conflicts;
Traffic signal layout;
Pavement markings;
Signage;
Sight distance and geometry; and
Pedestrian and bicycle accommodations.
The following sections discuss in detail the safety issues and potential enhancements that were identified
during the RSA. The safety issues and potential enhancements are separated by location.
Page 4
Road Safety Audit—Route 114 at Interstate 495 - Lawrence, Massachusetts
Prepared by Toole Design Group
Safety Issue #1. Congestion
Observations:
The audit team noted that congestion along the
Route 114 corridor is heavy and contributes to
driver frustration, unsafe maneuvers, and poor
sight distance for turning vehicles. The team
also noted that queues on Route 114 eastbound
back up due to the lane drop and downstream
congestion east of the Dunkin Donuts
driveway. Additionally, team members noted
that they have observed queues on the
Interstate 495 northbound off-ramp back up
towards the interstate mainline, which is a
safety hazard.
Potential Enhancements:
1. Consider reconfiguring the lane drop to occur west of the traffic signal.
2. Consider providing capacity improvements to the downstream intersections to reduce
driver frustration and limit queues on the ramps.
Safety Issue #2. Driveway Turn Conflicts
Observations:
The audit team noted that several of the
crashes are related to the driveways for the
Dunkin Donuts and businesses at 245
Winthrop Avenue. The close proximity of the
driveways to the signalized intersection result
in difficult left turn movements into and out of
the driveways, which may be blocked by
queues and may have limited sight distance to
turning traffic.
Four crashes, which all occurred at the Dunkin
Donuts driveway and were labeled as
“courtesy crashes,” occurred between drivers turning left into or out of the driveway and
westbound through vehicles. Team members noted that this driveway also serves the Friendly’s
and Holiday Inn Express at this location. Additionally, team members noted that the driveways
on the south side of Route 114 have wide curb cuts at the traffic signal for Route 114 at I-495
northbound on-ramps but are not incorporated into the signal phasing.
Page 5
Road Safety Audit—Route 114 at Interstate 495 - Lawrence, Massachusetts
Prepared by Toole Design Group
Potential Enhancements:
1. Work with the property owners to restrict left turns in and out of the unsignalized
driveways.
2. Consider continuing the median on Route 114 by installing quick curb to restrict left turn
access into and out of the Dunkin Donuts driveway.
3. If it is not possible to restrict left turn access, consider restriping the roadway to provide a
left turn lane.
4. Consider adding signal control for the driveway to 235 Winthrop Avenue.
Safety Issue #3. Traffic Signal
Observations:
The audit team noted that at least four of the
rear-end crashes occurred at the traffic signal.
Team members also noted that the traffic
signal acts as a “half signal” because the
eastbound through movement is always green.
Additionally, team members noted that drivers
traveling in the westbound direction may not
expect the signal to turn red which may lead to
quick stops and rear-end crashes. One of the
crashes that occurred at the signal involved a
vehicle turning left to the 235 Winthrop
Avenue driveway from the Route 114
eastbound approach. Team members noted that the current signal phasing may cause a “yellow
trap” in which the left turning vehicle assumes when the signal turns yellow that through vehicles
at the opposing approach will stop.
During the field visit, team members observed that there are two left turn signals for the single
left turn lane to the Interstate 495 northbound on-ramp from Route 114 eastbound approach. This
may cause confusion, as typically dual left turn signal heads are only installed in locations with
dual left turn lanes.
Potential Enhancements:
1. Consider modifying the traffic signal to prevent “yellow trap” crashes. This would
require removing the median to install a left turn lane and installing flashing yellow
arrow signal indications or protected-only left turn phasing for traffic entering 235
Winthrop Avenue. Alternatively, consider restricting left turns into the driveway.
2. Consider removing one of the left turn signal indications and center the remaining signal
head over the eastbound left turn lane.
Page 6
Road Safety Audit—Route 114 at Interstate 495 - Lawrence, Massachusetts
Prepared by Toole Design Group
Safety Issue #4. Pavement Markings
Observations:
The audit team noted that the striped median
extends past the physical median in front of
the Dunkin Donuts driveway on Route 114 in
the eastbound direction. Team members noted
that drivers do make turns across the striped
median. During the field visit, team members
noted that the broken white lane lines on
Route 114 are faded at the intersection.
Additionally, team members noted that lane
use arrows and legends are not provided in the
exclusive left turn lane on the eastbound
approach. No crashes were directly attributed
to the pavement markings, however they likely contribute to confusion for some drivers at the
intersection which may be a contributing factor to other crashes.
Potential Enhancements:
1. Reinstall lane line markings and install lane us arrows.
2. Reinstall striping on painted median.
Safety Issue #5. Signage
Observations:
The audit team noted that seven of the
recorded rear-end crashes, including three that
resulted in injury, occurred on the Interstate
495 off-ramps. During the field visit, team
members noted that the Interstate 495 offramps do not provide advance warning signs
for the yield indication. Additionally, team
members noted that there may not be enough
signage for the lane drop on Route 114
eastbound past the intersection. Team
members also noted that the existing guide
signs obstruct pedestrian access along the
north side of Route 114.
Potential Enhancements:
1. Consider installing W3-2 “YIELD AHEAD” signs on Interstate 495 off-ramps.
2. Consider installing additional warning signs for the lane drop on Route 114 eastbound.
Page 7
Road Safety Audit—Route 114 at Interstate 495 - Lawrence, Massachusetts
Prepared by Toole Design Group
3. Consider installing R3-8 Lane Control signs on the eastbound intersection approach.
4. Consider moving guide signs away from roadway to allow for installation of sidewalks.
Safety Issue #6. Sight Distance and Geometry
Observations:
The audit team noted that the sight distance on
the Interstate 495 off-ramp to Route 114
eastbound is impeded by the fence and
vegetation located west of the ramp, directly
within the driver’s sightline. Additionally,
team members noted that solar glare may also
impede to sight distance at the intersection.
These sight distance issues may contribute to
the four rear end crashes that took place on the
ramp approach.
Team members noted that the angle of the
approach for the off-ramp to Route 114 westbound is oblique, requiring drivers to look over their
shoulder prior to turning onto Route 114. This may be a contributing factor to the three rear-end
crashes on this approach.
Potential Enhancements:
1. Trim the vegetation at the Interstate 495 northbound off-ramp to Route 114 eastbound to
improve sight distance.
2. Consider removing the fence to improve the sight line and reduce the opportunity for
further vegetation growth.
3. Consider realigning the Interstate 495 northbound off-ramp to Route 114 westbound to
intersect at between 75 and 90 degrees.
4. Consider reconstructing the entire interchange to provide a diamond configuration, which
will better match driver expectation, reduce confusion, and require fewer ramps on both
sides of the interchange.
Page 8
Road Safety Audit—Route 114 at Interstate 495 - Lawrence, Massachusetts
Prepared by Toole Design Group
Safety Issue #7. Pedestrian and Bicycle Facilities
Observations:
The audit team noted that the majority of the
study area lacks pedestrian or bicycle
facilities. There were no crashes reported
involving a bicyclist while there was one crash
reported that involved a pedestrian crossing
the Interstate 495 northbound on-ramp.
Members of the team did not feel safe while
crossing the Interstate ramps due to the lack of
signals and high speed turning geometry at the
slip lanes.
As previously mentioned, there is a sidewalk
on the south side of Route 114 and none on the north side. During the field visit, team members
observed pedestrians walking along the north side of Route 114. Members of the team noted that
there is a path worn through the grass along the north side of Route 114 from pedestrians
traveling along the corridor. Team members also noted during the field visit that there is a gap in
the sidewalk on the south side of Route 114 east of the intersection between the Gulf Station and
the bridge over the Shawsheen River. Members of the team also noted that the Holiday Inn
Express in the Dunkin Donuts lot and North Andover Mall east of the study area contribute to
pedestrian demand in the area.
Team members observed cyclists traveling westbound on Route 114. As previously mentioned,
there are no bicycle facilities in the study area.
Potential Enhancements:
1. Consider installing a sidewalk along the north side of Route 114 between the terminus of
the existing sidewalk at the I-495 overpass, west of the study area, and the mall driveway,
east of the study area.
2. Consider providing pedestrian handicap ramps, crosswalks and signal equipment at the
intersection.
3. Consider installing a sidewalk on the south side of Route 114 between the 235 Winthrop
Avenue driveways to the Shawsheen River bridge to connect the existing sidewalks.
4. Consider providing bicycle facilities on Route 114.
Page 9
Road Safety Audit—Route 114 at Interstate 495 - Lawrence, Massachusetts
Prepared by Toole Design Group
Summary of Road Safety Audit
Table 2 lists each safety issue and the corresponding potential safety enhancements that were discussed at
the audit and within the previous section. The safety issues and potential safety enhancements are divided
by location. For each observed safety issue and potential safety enhancement, the table includes the safety
payoff, estimated time frame for completion, estimated construction cost, and the responsible agency.
Safety payoff estimates are subjective and may be based on the relative percent of crashes that may be
reduced by the enhancement; for example, low (<30 percent), medium (31 percent to 70 percent), and
high (>71 percent). 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 ($10,001 to $50,000), or high
(>$50,001).
Page 10
Road Safety Audit—Lower Westfield Road – Holyoke, Massachusetts
Prepared by Toole Design Group
Table 2. Potential Safety Enhancement Summary
Location
Safety Issue
Congestion
Driveway Turn Conflicts
Route 114 at Interstate 495
Traffic Signal
Northbound Ramps
Pavement Markings
Signage
Safety
Payoff
Time
Frame
Cost
Responsible
Agency
Consider reconfiguring the lane
drop
Medium
Mid-Term
Low
MassDOT
Consider providing capacity
improvements to the downstream
intersections
Medium
Long-Term
High
MassDOT
Restrict left-turns in and out of
unsignalized driveways
High
Mid-Term
Low
MassDOT/
Property
Owners
Extend the median on Route 114
High
Mid-Term
Low
MassDOT
Restripe the roadway to provide a
left turn lane
Medium
Mid-Term
Low
MassDOT
Add signal control for the driveway
to 235 Winthrop Avenue
Medium
Mid-Term
Medium
MassDOT
Modify the signal to remove the
“Yellow Trap” condition
Medium
Mid-Term
Medium
MassDOT
Remove one of the left turn signal
indications.
Medium
Short-Term
Low
MassDOT
Reinstall lane line markings and
lane use arrows
Medium
Short-Term
Low
MassDOT
Reinstall striping for painted
median
Low
Short-Term
Low
MassDOT
Install W3-2 “YIELD AHEAD” signs
on the off-ramp approaches
Low
Short-Term
Low
MassDOT
Install additional warning signs for
the Route 114 eastbound lane
drop
Medium
Short-Term
Low
MassDOT
Install R3-8 Lane Control signs
Medium
Short-Term
Low
MassDOT
Move guide signs away from the
roadway
Medium
Mid-Term
Medium
MassDOT
Safety Enhancement
Page 11
Road Safety Audit—Lower Westfield Road – Holyoke, Massachusetts
Prepared by Toole Design Group
Table 2 (continued). Potential Safety Enhancement Summary
Location
Safety Issue
Sight Distance and
Geometry
Route 114 at Interstate 495
Northbound Ramps
Pedestrian and Bicycle
Facilities
Safety Enhancement
Safety
Payoff
Time
Frame
Cost
Responsible
Agency
Trim the vegetation at the
Interstate 495 northbound to Route
114 eastbound off-ramp
High
Short-Term
Low
MassDOT
Remove the fence at the Interstate
495 northbound to Route 114
eastbound off-ramp
High
Short-Term
Low
MassDOT
Realign the Interstate 495
northbound off-ramp to Route 114
westbound
Medium
Mid-Term
High
MassDOT
Reconstruct the interchange to
provide a diamond configuration
High
Long-Term
High
MassDOT
Install a sidewalk along the north
side of Route 114
Medium
Mid-Term
Medium
MassDOT
Provide pedestrian ramps,
crosswalks, and signal equipment
at the ramp intersection
High
Mid-Term
Medium
MassDOT
Install a sidewalk on the south side
of Route 114 between the 235
Winthrop Avenue driveway and the
Shawsheen River bridge
High
Mid-Term
Low
MassDOT
Provide bicycle facilities on Route
114
Low
Mid-Term
Medium
MassDOT
Page 12
Road Safety Audit—Lower Westfield Road – Holyoke, Massachusetts
Prepared by Toole Design Group
Appendix A. RSA Meeting Agenda
Road Safety Audit
Lawrence, MA
Route 114 (Winthrop Ave) at Interstate 495
Meeting Location: Lawrence Community Development
Conference Room
225 Essex Street, 3rd Floor, Lawrence, MA
Tuesday, June 30th 2015
9:00 AM – 11:00 noon
Type of meeting:
High Crash Location – Road Safety Audit
Attendees:
Invited Participants to Comprise a Multidisciplinary Team
Please bring:
Thoughts and Enthusiasm!!
9:00 AM
Welcome and Introductions
9:15 AM
Discussion of Safety Issues
 Crash history, Speed Regulations – provided in advance
 Existing Geometries and Conditions
10:00 AM
Site Visit
 Drive to the intersection of Route 114 and Interstate 495
 As a group, identify areas for improvement
10:30 AM
Discussion of Potential Improvements
 Discuss observations and finalize safety issue areas
 Discuss potential improvements and finalize recommendations
11:00 AM
Adjourn for the Day – but the RSA has not ended
Instructions for Participants:
 Before attending the RSA on June 30th, participants are encouraged to drive/walk
through the intersection and complete/consider elements on the RSA Prompt List
with a focus on safety.
 All participants will be actively involved in the process throughout. Participants
are encouraged to come with thoughts and ideas, but are reminded that the
synergy that develops and respect for others’ opinions are key elements to the
success of the overall RSA process.
 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—Lower Westfield Road – Holyoke, Massachusetts
Prepared by Toole Design Group
Appendix B. RSA Audit Team Contact List
Road Safety Audit—Lower Westfield Road – Holyoke, Massachusetts
Prepared by Toole Design Group
Audit Team Members Agency/Affiliation
Email Address
Theresa Park
City of Lawrence Planning Director
tpark@cityoflawrence.com
Brian Moriarty
City of Lawrence Fire Chief
bmoriarty@cityoflawrence.com
Jim Terlizzi
Merrimack Valley Planning Commission
jterlizzi@mvpc.org
Anthony Komornick
Merrimack Valley Planning Commission
akomornick@mvpc.org
Timothy Paris
MassDOT District 4 Projects
timothy.paris@state.ma.us
John Gregg
MassDOT District 4 Traffic Operations
john.gregg@state.ma.us
Derek Caldwell
MassDOT District 4 Traffic
derek.caldwell@state.ma.us
Buu Tran
MassDOT Boston Traffic
buu.tran@state.ma.us
Corey O’Connor
MassDOT Boston Traffic
corey.oconnor@state.ma.us
Patrick Baxter
Toole Design Group
pbaxter@tooledesign.com
Shannon Brown
Toole Design Group
sbrown@tooledesign.com
Road Safety Audit—Lower Westfield Road – Holyoke, Massachusetts
Prepared by Toole Design Group
Appendix C. Detailed Crash Data
Crash Data Summary Table
I-495 NB Ramps at Rt 114, Lawrence, MA
January 1, 2011- December 31, 2013
Crash
Date
Crash Day
m/d/y
Time of Day
1
1/31/11
Monday
3:00 PM
Sideswipe, same direction
Daylight
Unknown
Snow
Failure to keep in proper lane or
running off road
52
21
2
7/4/11
Monday
2:40 PM
Rear-end
Daylight
Unknown
Dry
Followed too closely
40
53
3
4
7/12/11
8/3/11
Tuesday
Wednesday
3:50 PM
11:30 AM
Sideswipe, same direction
Rear-end
Daylight
Daylight
Unknown
Clear
Unknown
Dry
5
6
7
8/20/11
9/11/11
9/19/11
Saturday
Sunday
Monday
12:45 AM
1:00 PM
11:30 AM
Angle
Rear-end
Rear-end
Dark - lighted roadway Clear
Daylight
Unknown
Daylight
Cloudy
Dry
Dry
Dry
Unknown
45
42
No Improper Driving
46
33
Operating Vehicle in erratic, reckless,
careless, negligent, or aggressive
manner
UNK
21
Failed to yield right of way
41
51
Inattention
UNK UNK
8
10/22/11 Saturday
11:20 AM
Sideswipe, same direction
Daylight
Clear
Dry
9
10
11/23/11 Wednesday
11/30/11 Wednesday
8:25 AM
7:30 AM
Angle
Rear-end
Daylight
Daylight
Rain
Clear
Wet
Dry
11
2/24/12
Friday
3:00 PM
Rear-end
Daylight
Clear
12
13
2/26/12
3/25/12
Sunday
Sunday
3:30 AM
12:50 PM
Rear-end
Rear-end
Daylight
Daylight
Clear
Rain
14
15
4/18/12
7/2/12
Wednesday
Monday
11:45 PM
5:45 PM
Sideswipe, same direction
Rear-end
16
17
7/18/12
9/10/12
Wednesday
Monday
2:45 PM
11:20 AM
18
19
20
10/2/12
11/1/12
11/2/12
Tuesday
Thursday
Friday
21
22
23
24
25
3/6/13
4/23/13
6/9/13
8/23/13
8/26/13
Wednesday
Tuesday
Sunday
Friday
Monday
26
27
Crash
Diagram
Ref #
Manner of Collision
Type
Light Condition
Type
Weather
Condition
Type
Road Surface
Type
Driver Contributing Code
Type
D1
Ages
D2
16
21
No Improper Driving
Inattention
29
28
47
31
Disregarded traffic signs, signals, road
markings
50
23
Dry
Wet
Followed too closely
Inattention
41
55
33
59
Dark - lighted roadway Clear
Daylight
Clear
Dry
Dry
Failure to keep in proper lane or
running off road
No Improper Driving
22
23
44 UNK
Angle
Rear-end
Daylight
Daylight
Rain
Clear
Wet
Dry
No Improper Driving
Followed too closely
38
52
43
45
3:10 PM
12:45 PM
7:55 AM
Rear-end
Rear-end
Head on
Daylight
Daylight
Daylight
Rain
Clear
Clear
Wet
Dry
Dry
Inattention
Inattention
38
19
60
49
29
16
12:50 PM
9:00 AM
3:47 PM
6:15 PM
1:45 PM
Rear-end
Angle
Rear-end
Rear-end
Rear-end
Daylight
Daylight
Daylight
Daylight
Daylight
Rain
Clear
Clear
Clear
Wet
Wet
Dry
Dry
Dry
Followed too closely
No Improper Driving
Followed too closely
Followed too closely
Failed to yield right of way
36
20
52
31
44
20
51
38
36 UNK
10/18/13 Friday
12:00 PM
Angle
Daylight
Unknown
Unknown
No Improper Driving
18
37
12/30/13 Monday
2:55 PM
Angle
Daylight
Unknown
Unknown
Unknown
72
22
Comments
D3
MV 2 attempted to pass MV 1 by driving onto snowbank. Weather condition
not identified.
MV 3 turning onto 495 NB onramp and rear ends MV 2 who rear ends MV1.
32 Weather condition not identified.
Sideswipe while changing lanes due to a lane closure. Weather and road
conditions not identified.
44 MV 1 turning left into 235 Winthrop and rear ended by MV 2, MV 3 fails to
MV 2 OUI, tried to cross from Gulf Station directly onto 495 on-ramp, hit by
MV 1 coming north on Rt 114.
Rear end at end of off-ramp.
MV2 attempted to enter 230 Winthrop from wrong lane, sideswiped MV1.
Courtesy Crash. MV 1 turning left from Dunkin Donuts, unknown veh in
nearside lane stops to allow MV 1 to turn, MV 2 in adjacent lane does not
stop and hits MV 1.
45 MV 2 and 3 stopped at signal, rear ended by MV 1.
MV 1 heading toward on-ramp with signal on when MV 2 pulls out. MV 1 hits
MV 2.
MV 1 rear ended by MV2 at end of off-ramp. Light condition listed as daylight
despite crash reported at 3:30.
Rear end in front of Dunkin Donuts
MV 1 turned into Gulf station (to the right) from left turn lane, sideswiping MV
2.
52 Rear end at signal.
Courtesy Crash, MV 1 turning left into Dunkin Donuts hit by MV 2
(construction truck had stopped for MV1 and blocked MV 2's view)
MV 1 rear ends MV 2 at end of off-ramp.
Unknown vehicle stops abruptly in road resulting in MV 1 rear ending MV 2.
MV 1 rear ended by MV 2 at end of off-ramp.
MV 1 turns left and hits pedestrian crossing 495 on ramp
Rear end at merge point between right and left turning vehicles on on-ramp.
Weather condition not identified.
Collision recorded as angle, but described as sideswipe.
MV 1 rear ended by MV2 at end of off-ramp.
MV 1 rear ended while turning onto on ramp.
MV 1 rear ended by MV2 at end of off-ramp.
Courtesy Crash. MV 1 turning left into Dunkin Donuts hit by MV 2 whose view
is obstructed by stopped vehicles. Weather and road conditions not
provided.
Courtesy Crash. MV 2 turning left into Dunkin Donuts hit by MV 1 whose view
is obstructed by stopped vehicles. Weather and road conditions not
provided.
*Courtesy Crash - A term used to describe a crash that occurs subsequent to a non-involved mainline driver who gives the right of way, contrary to the rules of the road, to another driver.
Summary based on Crash Reports obtained from the RMV for both Local and State Police.
Crash Data Summary Tables and Charts
I-495 NB Ramps at Rt 114, Lawrence, MA
16%
14%
12%
10%
8%
6%
4%
2%
0%
CRASH MONTH
15%
15%
15%
11%
7%
7%
11%
7%
4%
4%
4%
0%
J
F
M
A
M
J
J
A
S
O
N
D
CRASH DAY OF WEEK
30%
26%
25%
22%
20%
15%
15%
15%
11%
7%
10%
4%
5%
0%
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
CRASH TIME OF DAY
35%
30%
30%
25%
22%
20%
15%
15%
10%
5%
7%
7%
4%
4%
4%
4%
0%
4%
0%
0%
6AM- 8AM
8AM10AM
10AM12PM
12PM2PM
2PM- 4PM 4PM- 6PM 6PM- 8PM
8PM10PM
10PM12AM
12AM2AM
2AM- 4AM 4AM- 6AM
CRASH MANNER OF COLLISION
70%
60%
50%
40%
30%
20%
10%
0%
59%
22%
15%
0%
Single
Vehicle
Crash
0%
Rear-end
Angle
Sideswipe,
same
direction
ash Data Spreadsheet_Rt 114 @ I-495_05_28_2015FINAL.xlsx
2 of 3
Sideswipe,
opposite
direction
4%
Head on
0%
0%
Rear to Rear Unknown
5/28/2015
Crash Data Summary Tables and Charts
I-495 NB Ramps at Rt 114, Lawrence, MA
CRASH LIGHT CONDITION
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
93%
Daylight
7%
0%
0%
Dawn
Dusk
0%
0%
Dark Dark Dark Lighted Roadway not unknown
Roadway
lighted
roadway
lighting
0%
0%
Other
Unknown
CRASH WEATHER CONDITION
60%
54%
50%
40%
30%
23%
19%
20%
10%
4%
0%
0%
0%
0%
0%
0%
0%
Clear
Cloudy
Rain
Severe
Blowing
Sleet, Hail, Fog, Smog,
Smoke
Crosswinds sand, snow
Freezing
Rain
Snow
Other
Unknown
CRASH ROAD SURFACE
70%
60%
50%
40%
30%
20%
10%
0%
62%
23%
4%
Dry
Wet
0%
Snow
Ice
0%
0%
Sand, mud, Water
dirt, oil, (standing,
gravel
moving)
0%
0%
0%
Slush
Other
Unknown
CRASH DRIVER AGES
30%
25%
25%
22%
20%
18%
20%
15%
11%
10%
5%
2%
2%
60-69
70-79
0%
0%
15-20
21-29
30-39
40-49
ash Data Spreadsheet_Rt 114 @ I-495_05_28_2015FINAL.xlsx
3 of 3
50-59
80+
5/28/2015