ROAD SAFETY AUDIT
Wellington Circle
Municipality of Medford
March 10, 2016
Prepared For:
MassDOT
On Behalf Of:
WYNN Everett
Prepared By:
AECOM
250 Apollo Drive
Chelmsford, MA
Road Safety Audit—Wellington Circle
Prepared by AECOM
March 10, 2016
Table of Contents
Contents
Background ................................................................................................................................. 1
Project Data ................................................................................................................................. 1
Project Location and Description .............................................................................................. 2
Audit Observations and Potential Safety Enhancements........................................................ 5
Summary of Road Safety Audit ............................................................................................... 10
List of Appendices
Appendix A.
Appendix B.
Appendix C.
Appendix D.
RSA Meeting Agenda
RSA Audit Team Contact List
Detailed Crash Data
Road Safety Audit References
List of Figures
Figure 1: Locus Map – Wellington Circle, Medford ................................................................................. 4
List of Tables
Table 1: Participating Audit Team Members ............................................................................................. 2
Table 2: Intersection Roadways ................................................................................................................. 3
Table 3: Estimated Time Frame and Costs Breakdown ........................................................................... 10
Table 4: Potential Safety Enhancement Summary – Wellington Circle .................................................. 11
Road Safety Audit—Wellington Circle
Prepared by AECOM
March 10, 2016
Background
The Federal Highway Administration (FHWA) defines a Road Safety Audit (RSA) as the formal safety
examination of an existing or future road or intersection by an independent, multidisciplinary team. The
purpose of an RSA is to identify potential safety issues and possible opportunities for safety
improvements considering all roadway users. This RSA evaluates the Wellington Circle intersection
along Mystic Valley Parkway/Revere Beach Parkway (Route 16)/Fellsway (Route 28)/Middlesex Avenue
in Medford, Massachusetts. Mystic Valley Parkway/Revere Beach Parkway (Route 16) is under the
jurisdiction of the Department of Conservation and Recreation (DCR). A safety audit was scheduled for
this intersection as part of the Massachusetts Environmental Protection Agency (MEPA) approval process
for the proposed Wynn Everett Project.
MassDOT has identified two Highway Safety Improvement Program (HSIP) crash clusters between 2011
and 2013 at Wellington Circle.
A key objective of the RSA is to identify both short-term and long-term safety improvements that can be
made throughout the corridor and or at the subject intersections.
Project Data
An RSA was completed for Wellington Circle on Tuesday, February 2, 2016. The RSA for Route
16/Mystic Valley Parkway was conducted on the same day with the same audit team members. The
agenda for the RSA meeting held at Wynn Design and Development offices near the Wellington Circle,
Medford is provided in Appendix A of this report. As shown below in Table 1, the audit team consisted of
a multidisciplinary team with representatives from state, regional and local agencies providing expertise
in the engineering, planning, and maintenance fields. Contact information for the RSA attendees is
provided in Appendix B of this report.
Within the email invitation sent on January 26, 2016 to each participant in the RSA, background material
was provided. This information included collision diagrams and crash data summaries for the study area.
During the RSA meeting, these materials were reviewed as a group prior to the field visit to the
intersections. During the RSA field visit, various safety issues were observed and identified. Following
the RSA field visit, the team returned to discuss additional concerns and potential solutions for the
existing safety issues.
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Road Safety Audit—Wellington Circle
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Table 1: Participating Audit Team Members
Audit Team Member
Richard Huber
John Mastera
Timothy Paris
Sara Timoner
Mark Abbott
David Loutzenheiser
Val Soroka
Cassandra Koutalidis
Al Carrier
Frank Astone
Chris Chaffee
Jeff DeInnocentis
Dirk Grotenhuis
Jeff Maxtutis
Agency/Affiliation
Massachusetts State Police
MassDOT – Highway Safety
MassDOT District 4 – Projects
MassDOT District 4 – Traffic
Boston MPO/CTPS
MAPC
DCR
Medford
Wynn Design and Development
AECOM
AECOM
AECOM
AECOM
AECOM
The crashes and collision diagrams were based on crashes reported by Mass State Police between January
2011 and December 2013.
A total of 176 crashes were reported for the period between 2011 and 2013. Of these, 31 percent were
angle crashes, 30 percent were rear-end crashes, and 24 percent were side swipe crashes. Several crashes
were the result of motorists driving through a red light or failure to yield the right of way. Two pedestrian
crashes and no bicycle crashes were recorded. A total of 30 percent of the crashes occurred between 2:00
PM and 6:00 PM. The months with the highest percent of crashes were March and November (11
percent). The day with the highest percent of crashes was Saturday (20 percent). Most crashes occurred in
daylight hours with clear weather conditions and dry road surface.
Project Location and Description
Wellington Circle is a complex traffic configuration in Medford at the junction of Route 16 (Mystic
Valley Parkway/Revere Beach Parkway) with Route 28 (Fellsway) and Middlesex Avenue. The
configuration consists of 28 approach lanes with all turns allowed from each approach. All approaches are
signalized, except for the yield-controlled right turns to and from Route 16 west of the intersection. Table
2 shows roadway jurisdiction and functional classes, provided by MassDOT.
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Road Safety Audit—Wellington Circle
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Table 2: Intersection Roadways
Roadway
Route 16 West Leg (Mystic
Valley Parkway)
Route 16 East Leg (Revere
Beach Parkway)
Route 28 North Leg (Fellsway)
Route 28 South Leg
(Fellsway)
Middlesex Avenue
Jurisdiction
Functional Class
Regulatory Speed
Limit
DCR
Principal Arterial
35 MPH
DCR
Principal Arterial
35 MPH
DCR
Urban Principal Arterial
35 MPH
DCR
Principal Arterial
35 MPH
MassDOT
Urban Minor Arterial
35 MPH
The MassDOT Highway Safety Inventory Program (HSIP) identified two high crash clusters for
Wellington circle between 2011 and 2013.
During the Friday PM peak hour, approximately 9,000 vehicles enter the intersection. Approximately
49% of entering vehicles are on Route 16, 44% are on Route 28, and 7% are on Middlesex Avenue.
During the Saturday afternoon peak hour, approximately 7,900 vehicles enter the intersection.
Approximately 51% of entering vehicles are on Route 16, 39% are on Route 28, and 10% are on
Middlesex Avenue.
Pedestrian crosswalks are provided on each leg of the intersection. No bicycle facilities are provided at
Wellington Circle.
Figure 1 shows the Wellington Circle study area.
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Road Safety Audit—Wellington Circle
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March 10, 2016
Figure 1: Locus Map – Wellington Circle, Medford
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Road Safety Audit—Wellington Circle
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Audit Observations and Potential Safety
Enhancements
During the RSA meeting prior to the field visit, a brief introduction of the RSA process and a summary of
crash information was presented to the audit participants. It was noted that between January 2011 and
December 2013, a total of 176 traffic crashes were recorded within the audit area. Following the
presentation, the members of the audit team were asked to discuss the existing issues that may affect
safety within the study area. The audit team then visited the site as a group, at which time observations of
various safety concerns and deficiencies were identified and documented.
The audit observations, identified and documented in this report, have been provided by audit participants
or commenter’s, and do not necessarily represent those of the report authors – AECOM. Comments made
by respondents have been reviewed to ensure the report is focused on current safety
concerns/recommendations within the study area, are relevant to plans for the corridor, and relate to the
goals of this RSA.
Provided below is a list of the safety concerns and issues that were identified during the RSA within the
study area.
Pedestrian and Bicycle Facilities
There were three recorded crashes involving pedestrians,
and zero involving bicycles.
•
There are no bicycle facilities provided at
Wellington Circle.
•
There are no countdown pedestrian signals. There
are no pedestrian signals or crosswalk signs
provided at the following locations:
o Route 28 northbound right turn slip lane
o Route 28 southbound right turn slip lane
o Route 16 westbound right turn slip lane
o Route 16 eastbound right turn slip lane
Image 1: Wheelchair ramp on Route 16
westbound at Route 28 southbound
•
There is no crosswalk across Middlesex Avenue (northbound and southbound legs) north of
Route 16 westbound and no sidewalk on the island. A desire line path was observed for this
location, and pedestrians were observed in the island during the RSA.
•
The pedestrian signal for Route 28 southbound facing west, north of Route 16 westbound is
broken. The DCR representative called in to have the signal repaired.
•
Most pedestrian wheelchair ramps lack detectable warning devices. Some ramps do not meet
current ADA/AAB dimensional standards.
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Road Safety Audit—Wellington Circle
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Pavement Markings and Signs
There are multiple lanes for each intersection approach. It is not clear to motorists via designation
signing and pavement markings which lane to be in while driving through the intersection, which
contributes to angle and sideswipe crashes.
•
Route 16 Eastbound and Westbound
o
There are no Yield signs on the two u-turn lanes located north and south of Route 16.
o
The turning radius is tight for the Route 16 westbound triple left turn movement (particularly
trucks) to Route 28. As a result, trucks need to use more than one lane to make this maneuver.
There were approximately twenty-one crashes related to this maneuver in the analyzed time
frame.
There is no “No Turn on Red” (right turn) sign on Route 16 westbound approaching Route 28
northbound. On red, some motorists drive straight through to Route 28 northbound from the
right turn slip lane, which is an illegal movement. This is due to the geometry; The lane is
striped as a right turn only arrow, therefore drivers are confused and believe that the “thru”
movement is actually a turn. This movement can conflict with other traffic movements. One
crash was attributed to this maneuver.
o
•
Route 28 Northbound
o
Route 28 northbound north of Middlesex
Avenue has three travel lanes, but the outside
lane turns into an on-street parking lane
without signage or pavement markings
indicating a lane drop. Approximately two
crashes may have been contributed to by this
lack of traffic controls.
o
The Route 28 northbound lanes have a 2 left
turn lanes, and due to the lack of designation
it is causing vehicles in the far left lane to
attempt a thru movement, the current signage
only states Rt 16 West next left and contains a
single small worn sign stating left lane for left
turn which is an outdated sign. This appears to
have contributed to at least one crash.
Image 2: Route 28 Northbound north of
Middlesex Avenue
o
There is an overhead lane utilization sign for Middlesex Avenue westbound between Route
28 northbound and southbound. This sign blocked by the overhead green directional sign.
o
There is a lack of lane delineation on the Route 28 northbound and southbound sections,
particularly between Route 16 eastbound and westbound. Lane designations were noted as
lacking for Route 28 northbound approaching Route 16. There are also five lanes heading
southbound and only two lines marked in the center of the intersection. This leads to motorist
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Road Safety Audit—Wellington Circle
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confusion as to which lane to travel in while negotiating the intersection. (See Image 3) Many
vehicles go thru in the left lane causing an angle collision. The lack of direction appears to
have contributed to at least six crashes.
Image 3: Route 28 Southbound at Circle
Image 4: In the foreground, looking at the
limited pavement markings for the Route 28
southbound section in the circle. In the
background is the Route 16 westbound left turn
movement to Route 28 southbound.
Intersection Geometrics and Traffic Operations
•
The Route 16 eastbound inside lane approaching Route 28 southbound is offset by more than
six feet from the departure side. As a result, motorists need to shift lanes, often in heavy
traffic.
•
The Route 28 northbound right turn lane is very wide and vehicles often take the turn as two
lanes wide. This can lead to sideswipe crashes.
•
The optical overhead signal heads for Route 28 southbound in the circle are difficult for
motorists to see. This may contribute to crashes involving running red lights, of which there
were approximately five at this location in the analyzed time frame.
•
The yellow + all red signal clearance times appear to be the standard four seconds. Longer
clearance times may be needed given the time it takes for vehicles to clear the center of the
intersection during congested conditions. There were approximately fifteen crashes involving
vehicles traveling southbound from Middlesex Ave striking vehicles on Route 16 eastbound,
and five traveling Route 16 westbound.
•
There is no signal backing plates which results in a sun glare issues for motorists.
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Road Safety Audit—Wellington Circle
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Obstructions
•
Trees block the visibility of the green guide sign on the Route 16 westbound approach.
•
Many of the mast arm poles were noted to be unprotected. This can create a serious safety
concern should a vehicle crash into the pole.
•
In some locations, trees may prevent adequate sight distance to signals. In particular, the
trees in the island between EB and WB heading WB16 may block the sight to the signal
heads for the triple left turn.
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. Audit team members were
encouraged to develop short, medium and long-term safety enhancements.
Pedestrian and Bicycle Facilities
•
Update pedestrian facilities to be ADA compliant. This includes:
o Providing 16” signal heads with countdown signals at crosswalks and
o Provide Accessible Pedestrian Signals (APS)
o Updating wheelchair ramps to comply with ADA standards;
•
Provide pedestrian crosswalk and advance warning signs at unsignalized crosswalks.
•
Provide pedestrian signals and crosswalks across the Middlesex Avenue northbound and
southbound approaches to Route 28 northbound. Provide ADA compliant ramps and a new
sidewalk along the west side of the two islands.
•
Evaluate separated bicycle lanes (cycle track) along Route 16 eastbound and westbound
through the circle as part of the connectivity effort from Mystic River to the Everett
residential area.
•
Evaluate reducing the pavement width on the right turn slips lanes to reduce pedestrian
crossing distance.
•
Evaluate separating the pedestrian signal phasing across Route 28 southbound and Middlesex
Avenue westbound. Currently they run at the same time, but could be split since they run
concurrently with the traffic approach.
Pavement Markings and Signage
•
Provide new lane delineation pavement markings and signage (overhead and/or postmounted) to clarify traffic lane utilization through the circle. This should include lane
markings for the Route 28 northbound southbound movements and the triple left turns for
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Road Safety Audit—Wellington Circle
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Route 16 westbound and Middlesex Avenue westbound. Especially for the Route 28
northbound and southbound movements through the circle. This includes evaluating and
clarifying signage for the Route 28 southbound approach that left lanes are for left turns only.
Advance signing should also be considered.
•
Overhead lane utilization signs and guide signs should be considered. Clear signage should
be provided for the triple left turn movements on Route 16 and Middlesex Avenue
westbound. This should be evaluated to provide one arrow per travel lane, in addition to
guidance.
•
Add signage to prohibit u-turns through the circle and to alert motorists to the two legal uturns north and south of the circle. If lane volumes analysis allows, the far left lane could be
used for u-turn only.
•
Provide signage and pavement markings for the lane drop on Route 28 northbound north of
Middlesex Avenue.
•
Evaluate “No Turn on Red” (right turn) sign for the Route 16 westbound right turn
movement.
•
Review reducing vehicle travel lane widths and increasing bicycle lane widths.
Intersection Geometrics and Traffic Operations
•
Analyze a long-term scenario where the Middlesex Avenue signal is moved further north.
Evaluate the impact on safety and operations for all modes.
•
Replace the optical overhead signal heads for Route 28 southbound to improve visibility.
•
Evaluate lengthening the yellow + all red clearance intervals.
•
Review that proper number of signal heads are provided for each movement. Consider
replacement of balls with arrows to provide clear designation of movements.
•
Add back plates and visors to signal heads as needed.
•
Trim trees on Route 16 westbound to improve visibility.
•
Model and analyze a double-roundabout or other alternative as a long-term solution.
•
Evaluate turning movements for a WB-67 vehicle.
•
Evaluate narrowing downstream pavement area on Route 16 southbound to prevent vehicles
in the left turn lanes from traveling thru southbound.
•
Evaluate the reduction of pavement at the yellow gore on the eastern central island to better
delineate the travel area and provide larger pedestrian refuge.
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Road Safety Audit—Wellington Circle
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Summary of Road Safety Audit
After the site visit, the RSA participants returned to discuss the safety issues and consider various
improvements. The participants were encouraged to consider both short and long-term improvements for
each of the existing safety issues. Each improvement considered has been categorized as short-term, midterm, or long-term based on the definitions shown in Table 3. Additionally, a cost category has been
assigned to each improvement based on the parameters set forth in Table 3.
Table 3: Estimated Time Frame and Costs Breakdown
Time Frame
Short-Term
<1 Year
Mid-Term
1-3 Years
Long-Term
>3 Years
Costs
Low
Medium
High
<$10,000
$10,001-$50,000
>$50,000
Each safety issue and potential safety enhancement was discussed during the audit. Table 4 describes the
potential safety enhancement, potential safety payoff, the estimated time frame for completion, the
estimated construction cost, and the responsible agency for safety issue for Wellington Circle.
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Road Safety Audit—Wellington Circle
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Table 4: Potential Safety Enhancement Summary – Wellington Circle
Safety Issue
Traffic Signal
Equipment
Traffic Signal
Equipment
Traffic Signal
Equipment
Traffic Signal
Equipment
Traffic Signal
Equipment
ADA Accessibility
Signage
Signage
Signage
Signage
Signage/Pavement
Markings
Pedestrian and
Bicycle
Accommodation
Potential Safety Enhancement
Install countdown pedestrian signals
Review signal heads and replace balls with
arrows
Repair pedestrian signal for Route 28
Southbound, facing west
Many signals difficult to see, especially due to
glare. Install signal backplates with reflective
border and add visors as needed
Clearance times appear to be too short for some
intersection movements. Evaluate lengthening
the yellow and all red clearance intervals
Upgrade all pedestrian crossings to meet ADA
standards
Install pedestrian crosswalk signs on
uncontrolled channelized right turn lanes
Trim trees on Route 16 westbound to improve
visibility
Install lane overhead lane utilization signage on
all intersection approaches to make lane use
clear to motorists
Install “No Right Turn on Red” sign for vehicles
traveling from Route 16 westbound to Route 28
northbound
Add yield signs and markings at the two U-turn
locations
Evaluate the feasibility for a pedestrian
crosswalk at Middlesex Avenue where no
crosswalk exists
Safety Payoff
Time Frame
Cost
Responsible Agency
Medium
Mid-term
High
DCR
Medium
Mid-term
Mid
DCR
High
Short-term
Low
DCR
Medium
Short-term
Low
DCR
High
Short-term
Low
DCR
Low
Mid-term
Mid
DCR
Low
Short-term
Low
DCR
Low
Short-term
Low
DCR
High
Mid-term
High
DCR
Medium
Short-term
Low
DCR
Low
Short-term
Low
DCR
Medium
Mid-term
Low
DCR
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Road Safety Audit—Wellington Circle
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March 10, 2016
Safety Issue
Pedestrian and
Bicycle
Accommodation
Lane Configuration
Lane Configuration
Intersection Geometry
Intersection geometry
Intersection geometry
Intersection geometry
Intersection geometry
Potential Safety Enhancement
Examine the feasibility of providing separated
bicycle lanes (cycle track) along Rt. 16
eastbound and westbound through the circle
Evaluate removing the right lane entirely or
adding warning signs and markings on Route 28
northbound north of the intersection, which
drops from 3 lanes to 2 lanes without warning
Evaluate removing a through lane on the Route
28 southbound approach to the intersection and
add lane markings where feasible to avoid lane
confusion
Evaluate adjusting the geometry of the turn for
truck (WB-67) usage to make Route 16
westbound triple left wide enough for trucks to
stay in lane
Analyze a long-term scenario where the
Middlesex Avenue signal is moved further north.
Evaluate the impact on safety and operations for
all modes
Difficult intersection geometry to navigate. Model
and analyze a double-roundabout alternative
Difficult intersection geometry to navigate.
Evaluate reducing the pavement width on the
right turn slips lanes to reduce pedestrian
crossing distance and vehicle speeds
Evaluate narrowing downstream pavement area
on Route 16 southbound to prevent vehicles in
the left turn lanes from traveling thru
southbound.
Safety Payoff
Time Frame
Cost
Responsible Agency
High
Long-term
High
DCR
Medium
Mid-term
Mid
DCR
Medium
Mid-term
Mid
DCR
Medium
Mid-term
Mid
DCR
Medium
Long-term
High
DCR
High
Long-term
High
DCR
Medium
Long-term
High
DCR
Medium
Mid-term
Low
DCR
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Appendix A. RSA Meeting Agenda
Appendix B. RSA Audit Team Contact List
Participating Audit Team Members
Date:
February 2, 2016
Audit Team Members
Location:
Wynn Design and Development, Medford, MA
Frank Astone
Chris Chaffee
Agency/Affiliation
Massachusetts State
Police
MassDOT - Highway
Safety
MassDOT – District 4
Projects
MassDOT District 4 –
Traffic
Boston MPO/CTPS
MAPC
DCR
Medford
Wynn Design and
Development
AECOM
AECOM
Jeff DeInnocentis
AECOM
Dirk Grotenhuis
Jeff Maxtutis
AECOM
AECOM
Richard Huber
John Mastera
Timothy Paris
Sara Timoner
Mark Abbott
David Loutzenheiser
Val Soroka
Cassandra Koutalidis
Al Carrier
Email Address
Phone Number
Richard.Huber@pol.state.ma.us
978-538-6030
John.Mastera@state.ma.us
857-368-9648
Timothy.Paris@dot.ma.state.us
781-641-8325
Sara.timoner@state.ma.us
781-641-8435
Mabbott@ctps.org
Dloutzenheiser@mapc.org
Val.Soroka@state.ma.us
ckoutalidis@medford.org
857-702-3641
617-933-0743
617-626-4942
781-393-2476
acarrier@wynndevelopment.com
857-770-7823
Francis.astone@aecom.com
Chris.Chaffee@aecom.com
Jeffrey.deinnocentis@aecom.co
m
Dirk.Grotenhuis@aecom.com
Jeffrey.Maxtutis@aecom.com
978-905-2173
978-905-2125
978-905-2178
978-905-2303
978-905-2309
Appendix C. Detailed Crash Data
Crash Data Summary Table
Wellington Circle (Medford, MA)
January 2011 - December 2013
Crash
Diagram
Ref #
Crash Date
1
2
1/8/2011
Crash Day
Saturday
1/19/2011 Wednesday
Time of
Day
Manner of
Collision
Light Condition
Weather
Condition
Road Surface Driver Contributing Code
5:45 PM Rear end
Dark - lighted roadway Snow
Snow
1:05 PM Angle
Daylight
N/A
Ages
No improper driving
28 N/A
Wet
Other improper action
27
51
58
Middlesex St & Rt 28 north. Vehicle 1 ran red light and struck vehicle 2.
40
Vehicle 1 on Rt 28 S, Vehicle 2 on Rt 16 E. Vehicle 1 went through changing light and struck
vehicle 2 when it received green light.
Rt 16 WB at Rt 28 S. Vehicle 1 was struck by unknown vehicle on drivers side and unknown
vehicle fled.
3
1/24/2011
Monday
9:35 AM Angle
Daylight
Clear
Dry
Disregarded traffic signs,
signals, road markings
4
1/31/2011
Monday
Sideswipe, same
2:00 PM direction
Daylight
N/A
Dry
No improper driving
43 N/A
Single vehicle
1:20 AM crash
Dark - lighted roadway Clear
Dry
Operating vehicle in erratic,
reckless, careless, negligent or
improper manner
32
Dark - lighted roadway N/A
Dry
Wrong side or wrong way
33
21
Daylight
Rain
Wet
No improper driving
71
61
Daylight
Clear
Dry
Distracted
24
62
5
2/12/2011
Saturday
6
2/14/2011
Monday
7
3/11/2011
Friday
8
3/24/2011
Thursday
11:11 PM Angle
Sideswipe, same
9:45 AM direction
2:05 PM Angle
9
3/31/2011
Thursday
5:50 PM Angle
10
4/5/2011
Tuesday
10:25 AM Angle
Daylight
Cloudy/Rain
Wet
Daylight
Clear
Dry
Exceeded authorized speed
limit
Failure to keep in proper lane or
running off road
60
43
26
23
4/15/2011
Friday
12
4/22/2011
Friday
4:28 PM Angle
Daylight
N/A
Dry
N/A
27
31
13
5/2/2011
Monday
8:45 PM Rear end
Dark - lighted roadway N/A
Dry
Other improper action
35
27
14
5/9/2011
Monday
5:00 PM Angle
Daylight
N/A
Dry
Failed to yield right of way
50
55
15
5/14/2011
Saturday
N/A
N/A
Dry
Failure to keep in proper lane or
running off road
26
44
16
5/16/2011
Monday
7:00 PM Angle
Daylight
N/A
Wet
79
47
17
5/21/2011
Saturday
8:06 PM Angle
Dark - lighted roadway Clear
Dry
68
47
18
6/4/2011
Saturday
Daylight
N/A
Dry
37
38
19
6/4/2011
Saturday
Daylight
Clear
Dry
19
40
20
6/5/2011
Sunday
Dark - lighted roadway Clear
Dry
N/A
65
21
22
6/6/2011
6/7/2011
Monday
Tuesday
Daylight
Daylight
Dry
Dry
67
28
55
55
23
6/11/2011
Saturday
24
6/19/2011
Sunday
25
7/1/2011
Friday
26
7/6/2011 Wednesday
5:45 PM Angle
11:20 PM Rear end
Sideswipe, same
10:25 AM direction
4:00 PM Rear end
8:55 PM Rear end
11:54 AM Angle
Single vehicle
8:27 PM crash
5:43 PM Angle
Dry
37
11
10:19 AM Rear end
Clear
Inattention
36
7:30 PM Rear end
Sideswipe, same
12:15 PM direction
Dusk
Clear
N/A
Disregarded traffic signs,
signals, road markings
Disregarded traffic signs,
signals, road markings
Followed too closely
Disregarded traffic signs,
signals, road markings
No improper driving
Failure to keep in proper lane or
running off road
Inattention
Comments
Rt 16 WB at Wellington T Station. Hit and run. Vehicle 1 was hit in rear and vehicle 2,
unknown, fled.
Dark - lighted roadway Rain
Wet
Daylight
Clear
Dry
Operating vehicle in erratic,
reckless, careless, negligent or
improper manner
Disregarded traffic signs,
signals, road markings
Daylight
Clear
Dry
Inattention
24
26
Daylight
N/A
Dry
Over-correcting/over-steering
58
32
28
29
74
41
Rt 28 S. Vehicle travelling at high rate of speed and lost control in snow causing vehicle to
string barrier.
Rt 16 WB at Rt 28. Vehicle 1 going wrong way when vehicle 2 receives green light and hits
vehicle 1.
36 Rt 16 WB. Vehicle 1 struck vehicle 2, which was in center lane.
Rt 28 SB at Rt 16 EB. Vehicle 1 ran red light and was struck by vehicle 2.
Ninth St and Middlesex Ave. Vehicle 1 was turning right onto Middlesex Ave and was struck
by vehicle 2.
Wellington Circle, Rt 16W toward Rt 28S. Vehicle 1 makes contact with vehicle 2. Vehicle 1
doesn’t stop and is followed by vehicle 2.
Rt 28 NB at Rt 16 EB. Vehicle 2 stopped and was struck in rear by vehicle 1.
Rt 16 WB and Rt. 16 EB at McDonald Park driveway. Vehicle 2 was pulling into driveway and
was struck by vehicle 1.
Rt 16 EB prior to Wellington Circle. Vehicle 1 was backing up at red light and struck vehicle 2.
Corner of Middlesex Ave and Ninth St. Vehicle 2 was coming out of ninth st and failed to
yield right of way. Struck by vehicle 1.
45 Rt 16 WB toward Rt 28 SB. Vehicle 1, a truck, struck vehicle 2 causing it to strike vehicle 3.
Vehicle 1 Rt 16 WB and vehicle 2 Rt 28 N. Vehicle 1 making right hand turn struck vehicle 2.
Vehicle 1 Rt 28 N and vehicle 2 Rt 16 W. Vehicle 1 ran red light and was struck in right side by
vehicle 2, which had green.
Rt 16 W. Vehicle 2 was rear ended by vehicle 1, who did not have a drivers license.
Rt 16 W and Rt 28 S. Vehicle 1 had sun in eyes and did not see light then collided with
vehicle 2 who had green light.
Rt 28 N. Vehicle 1 struck rear of vehicle 2.
Intersection of Rt 16W and Rt 28S. Vehicle 1 crossed into right lane from left lane and struck
vehicle 2's trailer.
Rt 16W. Vehicle 2 was stopped at red light and was rear ended by vehicle 1.
Rt 16W north of Wellington Circle. Vehicle 1 was stopped at red light and vehicle 2 rear
ended vehicle 1.
Rt 28N and Rt 16E. Vehicle 1 entered circle when light turned green and was struck by
vehicle 2, which did not stop
Rt 28N and Rt 16E. Vehicle had green light and proceeded through light when it collided with
31 2 pedestrians.
Wellington Circle toward rt 28 SB. Multiple accidents caused by vehicle 1 that was travelling
at high rate of speed.
Crash Data Summary Table
Wellington Circle (Medford, MA)
January 2011 - December 2013
Crash
Diagram
Ref #
Crash Date
Crash Day
Time of
Day
Manner of
Collision
27
7/11/2011
Monday
3:32 PM Angle
28
8/4/2011
Thursday
11:04 PM Angle
29
30
8/6/2011
8/22/2011
Saturday
Monday
31
9/5/2011
32
Light Condition
Road Surface Driver Contributing Code
34
23
22
46
35
N/A
44
50
Comments
Rt 28 S at Rt 16 E. Vehicle 2 continued straight in the left turn lane and vehicle 1 was turning
left in other left turn lane. Vehicle 1 struck vehicle 2 in rear.
Rt 28 S at Circle. Vehicle 1 turned hard left and blocked passage of vehicle 2, causing
accident.
Rt 16 EB entering Wellington Circle. Vehicle 1 failed to stop for red light and collided with
vehicle 2.
Rt 16 EB entering Wellington Circle. Vehicle 1 struck vehicle 2 in rear.
Ages
Daylight
Daylight
Clear
Clear
Dry
Dry
Monday
7:20 PM Rear end
2:20 PM Rear end
Sideswipe, same
2:40 PM direction
Other improper action
Disregarded traffic signs,
signals, road markings
Disregarded traffic signs,
signals, road markings
Followed too closely
Daylight
Clear
Dry
N/A
52
39
Rt 28 S south of Rt 16. Vehicle 2 was turning and struck side of vehicle 1.
9/5/2011
Monday
4:45 PM Rear end
Daylight
Clear
Dry
40
26
Wellington Plaza parking lot at Rt 16. Vehicle 1 was backing up and struck front of vehicle 2.
33
9/19/2011
Monday
8:15 PM Angle
Dark - lighted roadway N/A
Dry
Wrong side or wrong way
Disregarded traffic signs,
signals, road markings
43
39
Rt 28 SB and Rt 16 EB. Vehicle 1 ran red light an struck vehicle 2. Vehicle 1 fled.
34
9/22/2011
Thursday
6:05 PM Rear end
Dusk
N/A
Dry
36
47
35
9/26/2011
Monday
Daylight
Clear
Dry
31
24
Rt 28 N. Vehicle 2 was struck in rear by vehicle 1 and vehicle 1 fled.
Rt 28 at Rt 16. Vehicle 2 was in the left turn lane from Rt.28 SB onto Rt.16 EB, but went
straight and crashed into drivers side of vehicle 1.
36
10/29/2011
Saturday
7:15 AM Angle
Sideswipe, same
3:00 PM direction
Followed too closely
Disregarded traffic signs,
signals, road markings
Daylight
Rain
Wet
Made an improper turn
35
54
37
10/31/2011
Monday
Daylight
Cloudy
Dry
No improper driving
47
80
38
11/4/2011
Friday
Dark - lighted roadway Clear
Dry
No improper driving
43 N/A
39
11/11/2011
Friday
Daylight
Clear
Dry
39
11/18/2011
Friday
Daylight
Clear
Dry
Other improper action
Failure to keep in proper lane or
running off road
52
40
11:34 AM Angle
Sideswipe, same
9:25 PM direction
Sideswipe, same
7:43 AM direction
Sideswipe, same
8:45 AM direction
38
50
41
11/23/2011 Wednesday
Daylight
Clear
Dry
Inattention
65
39
42
12/22/2011
Thursday
Dark - lighted roadway N/A
Ice
77
43
12/31/2011
Saturday
3:55 AM N/A
Dark - lighted roadway Clear
Dry
No improper driving
Disregarded traffic signs,
signals, road markings
24
51
44
1/7/2012
Saturday
2:30 PM Angle
Daylight
Dry
No improper driving
35
57
45
1/12/2012
Thursday
6:50 PM Angle
Dark - lighted roadway N/A
Dry
Failed to yield right of way
47
64
46
1/20/2012
Friday
11:05 AM Rear end
Daylight
Clear
Dry
Followed too closely
38
28
47
1/21/2012
Saturday
Dark - lighted roadway Clear
Dry
Other improper action
30
22
48
1/29/2012
Sunday
12:30 AM Angle
Sideswipe, same
3:25 PM direction
Daylight
N/A
Dry
Made an improper turn
37
33
Vehicle 1 traveling Rt 28N, vehicle 2 coming off Middlesex Ave attempting to cross Rt 28 N.
Vehicle 2 was stopped and proceeded, then was struck by vehicle 1.
Rt 16 WB at Rt 28. Vehicle 2 was slowing/stopped at intersection and is rear ended by
vehicle 1.
Rt 16 WB at Rt 28 SB. Vehicle 1 was attempting to change lanes to left and struck vehicle 2.
Driver of vehicle 1 was arrested for OUI.
Rt 28 N at Wellington Circle. Vehicle 1 attempted left hand turn from middle lane and struck
vehicle 2.
3:05 PM Angle
Single vehicle
12:27 AM crash
Daylight
Weather
Condition
N/A
Dry
Dark - lighted roadway N/A
Dry
Clear
57 Rt 16 W entering circle. Tractor trailer was attempting wide left turn and struck two vehicles.
Rt 16 W at Rt 28 S. Truck was making left and light turned red. Driver applied brakes and
trailer hit car next to it.
Rt 16 W at Rt 28 S. Vehicle 3 made contact with vehicle 2/1 (tractor trailer). This was a minor
38 collision.
Rt 16 W at Rt 28 S. Vehicle 1's trailer struck vehicle 2 and vehicle 1 pulled vehicle 2 into
57 vehicle 3.
Rt 16 W. Tractor trailer, vehicle 2, went through red light from right lane and tried to make
left turn, but struck vehicle 1, which was waiting at red light.
Middlesex Ave NB. Vehicle one was backing up illegally and struck parked car.
Rt 16W. Vehicle lost control in icy conditions and struck guardrail.
Rt 28 N at Wellington Circle. Vehicle 1 ran red light and caused accident with vehicle 2.
Middlesex Ave S. Vehicle 2, a fire truck, pulled onto the road from earlier incident and its
right front tire struck vehicle 1 in front left fender.
49
2/1/2012 Wednesday
9:45 PM Rear end
Dark - lighted roadway N/A
Dry
Inattention
42
37
Rt 28 N at Rt 16 E. Vehicle 1 rear ended vehicle 2, slightly, and vehicle 2 pulled into parking
lot. Passengers on vehicle 2 requested medical treatment
50
2/8/2012 Wednesday
Sideswipe, same
2:55 PM direction
Daylight
N/A
Dry
Other improper action
34
38
Rt 16 WB at Rt 28. Vehicle 1, a tractor trailer, was changing lanes and struck left side mirror
and door of vehicle 2.
51
3/13/2012
Tuesday
Sideswipe, same
1:21 PM direction
Daylight
N/A
Dry
Failed to yield right of way
60
46
Rt 28 N at Middlesex Ave. Vehicle 1 attempted a left turn, where left turn was illegal and
struck vehicle 2.
52
3/13/2012
Tuesday
5:50 PM Rear end
Daylight
Clear
Dry
Inattention
26
52
Rt 16 EB at Rt 28. Vehicle 2 was stopping for traffic and vehicle 1 rear ended vehicle 2.
53
3/21/2012 Wednesday
8:11 PM Angle
Dark - lighted roadway N/A
Dry
Made an improper turn
48
25
CVS Parking Lot on Rt16 W. Vehicle 2 struck vehicle 1 at intersection of Rt28 and Rt16 and
attempted to flee. Vehicle 1 followed to CVS.
Crash Data Summary Table
Wellington Circle (Medford, MA)
January 2011 - December 2013
Crash
Diagram
Ref #
Crash Date
Crash Day
54
3/22/2012
Thursday
55
3/23/2012
Friday
56
3/25/2012
Sunday
57
3/28/2012 Wednesday
Time of
Day
Manner of
Collision
Light Condition
Weather
Condition
Road Surface Driver Contributing Code
Ages
Comments
3:30 PM Rear end
Daylight
N/A
Dry
Followed too closely
27
47
Rt 28 SB. Vehicle 1 was stopping for red light and was struck in rear by vehicle 2, a tractor
trailer.
3:10 PM Rear end
Single vehicle
3:08 AM crash
Daylight
Clear
Dry
32
52
Rt 28 SB at state police barracks. Vehicle2 was stopped and rear ended by vehicle 1.
Dark - lighted roadway Clear
Dry
3:20 PM Angle
Daylight
Clear
Dry
11:38 AM Angle
Daylight
Clear
Dry
Inattention
Failure to keep in proper lane or
running off road
Disregarded traffic signs,
signals, road markings
Disregarded traffic signs,
signals, road markings
58
4/2/2012
59
4/4/2012 Wednesday
7:00 PM Angle
Dark - lighted roadway Clear
Dry
Inattention
51
19
Rt 28 SB. Vehicle 1 struck left curb and continued off the roadway, then struck a tree.
Rt 28 NB. Vehicle 2 was not paying attention and ran red light, then struck vehicle 1, which
was properly traveling through green light.
Rt 16 E at intersection of Rt 28. Vehicle 2 failed to stop for red light and was struck by vehicle
1, which had green light.
Rt 16 WB next to Kappy Liquors. Vehicle 2 was changing lanes and failed to yield to vehicle 1,
leading vehicle 1 to collide with vehicle 2.
60
4/5/2012
Thursday
3:25 PM Rear end
Daylight
N/A
Dry
No improper driving
53
22
Rt 16 WB at Rt 28 NB. Vehicle 1 stopped for red light and was rear ended by vehicle 2, which
was trying to change lanes.
61
4/6/2012
Friday
10:49 AM Angle
Daylight
Clear
Dry
36
52
62
4/8/2012
Sunday
4:45 PM Angle
Daylight
N/A
Dry
Other improper action
Disregarded traffic signs,
signals, road markings
31
42
Rt 16 WB and Rt 28 SB. Vehicle 1 ran red light and struck vehicle 2, which had green light.
Monday
58
36
24
25
Rt 16 WB to Rt 28 SB. Vehicle 1 (TT) was making left from Rt 16 WB and rubs into vehicle 2.
56 Vehicle 1 continues turn and rear ends vehicle 3.
Clear
Dry
N/A
47
48
Rt 16 WB to Rt 28 SB withing Wellington Circle. Vehicle 2 was stopped for red light and was
side swiped by vehicle 1.
Tuesday
Sideswipe,
9:07 PM opposite direction Dark - lighted roadway Clear
Dry
Disregarded traffic signs,
signals, road markings
50
30
Rt 16 EB and Rt 28 SB. Vehicle 1 ran red light and struck vehicle 2, which had green.
Tuesday
Sideswipe,
10:00 PM opposite direction Dark - lighted roadway Clear
Dry
Disregarded traffic signs,
signals, road markings
42
50
63
4/11/2012 Wednesday
64
4/17/2012
65
4/17/2012
Sideswipe, same
11:35 AM direction
21
Daylight
32 Rt 16 EB and Rt 28 SB. Multi car accident without any description.
66
4/22/2012
Sunday
Sideswipe, same
8:49 PM direction
67
5/4/2012
Friday
9:40 PM Rear end
68
5/8/2012
Tuesday
69
5/10/2012
Thursday
Sideswipe, same
4:50 PM direction
Daylight
Clear
Dry
N/A
N/A N/A
Rt 28 SB within Wellington Circle. Vehicle 1 attempted a left hand turn and struck back
passenger side of vehicle 2.
70
5/31/2012
Thursday
2:45 PM Angle
Daylight
Clear
Dry
N/A
N/A N/A
Middlesex Ave at Kappy's Liquors Parking Lot. Vehicle 1 was parked, but rolled in reverse,
52 unoccupied, and struck vehicle 2, which was driving on Middlesex Ave.
71
6/11/2012
Monday
3:37 PM Rear end
Daylight
Clear
Dry
N/A
Disregarded traffic signs,
signals, road markings
Single vehicle
10:10 PM crash
Dark - lighted roadway Rain
Wet
N/A
N/A N/A
Rt 16 EB and Rt 28 SB. Vehicle 1 ran red light and was struck by vehicle 2, which had green.
Dark - lighted roadway N/A
Dry
N/A
N/A N/A
Rt 16 EB at Rt 28 SB. Vehicle 1 was at yield and was rear ended by vehicle 2, which is an
unknown vehicle. Vehicle 2 fled.
Dark - lighted roadway Rain
Wet
N/A
N/A
Rt 28 NB at Station Landing. Vehicle 1 lost control when trying to change lanes and crashed
into the curb.
72
7/4/2012 Wednesday
7:05 PM Head on
Daylight
N/A
Dry
73
7/5/2012
4:15 PM Rear end
Daylight
N/A
Dry
Rt 28 SB at Rt 16WB. Vehicle 1 (TT) struck rear of vehicle 2 when vehicle 2 was slowing for
N/A N/A N/A light. When moving vehicle 1 off roadway, vehicle 1 struck vehicle 3.
67
27
Rt 28 SB and Rt 16 WB. Vehicle 1 ran red light and struck vehicle 2, which had green.
74
7/18/2012 Wednesday
6:19 AM Angle
Daylight
Clear
Dry
Followed too closely
Disregarded traffic signs,
signals, road markings
75
7/26/2012
Thursday
Daylight
N/A
Dry
Followed too closely
37
62
76
7/27/2012
Friday
3:30 PM Rear end
Sideswipe, same
3:39 PM direction
Daylight
Clear
Dry
N/A
75
35
Entering Rt 28 south from ramp. Vehicle 2 was yielding and was rear ended by vehicle 1.
Rt 16 WB and Rt 28 SB at Wellington Circle. Vehicle 2 was traveling WB on Rt 16 and ran red
light at which point vehicle 1 struck rear of vehicle 2.
Rt 28 SB and Rt 16 WB. Vehicle 1 rear ended vehicle 2. Driver of vehicle 1 was driving with
suspended license.
Rt 28 SB and Rt 16 EB. Both vehicles claimed to have green, but no witnesses. Collision
occurred in middle of intersection.
77
7/30/2012
Monday
Daylight
N/A
Dry
Followed too closely
30
47
Rt 16 EB. Vehicle 1 was slowing for light and vehicle 2 failed to slow then rear ends vehicle 1.
Thursday
12:39 PM Rear end
50
30
50
41
Crash Data Summary Table
Wellington Circle (Medford, MA)
January 2011 - December 2013
Crash
Diagram
Ref #
Crash Date
Crash Day
78
8/1/2012 Wednesday
79
8/1/2012 Wednesday
80
8/11/2012
Saturday
81
8/17/2012
Friday
82
8/20/2012
Monday
83
8/22/2012 Wednesday
84
8/25/2012
Saturday
85
9/2/2012
Sunday
86
9/6/2012
Thursday
Time of
Day
Manner of
Collision
Weather
Condition
25
30
Made an improper turn
23
48
Dry
Followed too closely
24
52
N/A
Dry
21
44
Daylight
Clear
Dry
63
52
Daylight
Clear
Dry
Failed to yield right of way
Disregarded traffic signs,
signals, road markings
Failure to keep in proper lane or
running off road
51
23
Comments
Rt 16 EB and Rt 28 SB. Vehicle 1 was making left onto rt 28 SB and was struck by vehicle 2 on
its right side. Vehicle 1 ran red light.
Rt 16 West ramp to Rt 28 S. Vehicle 2 was in middle lane and attempted left hand turn and
struck vehicle 1 (Motorcycle).
Rt 16 EB at Wellington Circle. Vehicle 2 was yielding for traffic and was struck from behind by
vehicle 1.
Rt 16 WB prior to Wellington Circle. Vehicle 1 was in left turn lane when vehicle 2 failed to
yield into vehicle 1's lane causing the accident.
Rt 28 SB. Vehicles were both in left turn lane when vehicle 1 continued straight and struck
vehicle 2.
Rt 28 SB at turnaround to Rt 28 NB. Vehicle 2 was in middle lane and attempted to change
lanes into left lane and struck vehicle 1.
Daylight
Clear
Dry
Followed too closely
57
18
Rt 28 SB. Vehicle 2 stopped for yellow light and was rear ended by vehicle 1.
Sideswipe,
4:25 PM opposite direction Daylight
Clear
Dry
Disregarded traffic signs,
signals, road markings
20
41
Rt 28 SB and Rt 16 EB. Vehicle 1 ran red light and collided with vehicle 2, which had green.
Clear
Dry
Other improper action
50
71
12:29 AM Angle
Sideswipe, same
9:54 AM direction
3:30 PM Rear end
Sideswipe, same
6:55 PM direction
Sideswipe, same
11:08 AM direction
Sideswipe, same
5:25 PM direction
1:58 PM Rear end
Sideswipe, same
11:00 AM direction
Light Condition
Dark - lighted roadway Clear
Road Surface Driver Contributing Code
Disregarded traffic signs,
signals, road markings
Dry
Daylight
Clear
Dry
Daylight
Clear
Daylight
Daylight
Daylight
Ages
87
9/7/2012
Friday
9:50 AM Rear end
Clear
Dry
Other improper action
41
82
88
9/9/2012
Sunday
Sideswipe,
9:30 PM opposite direction Dark - lighted roadway Clear
Dry
Inattention
35
26
89
9/10/2012
Monday
4:22 PM Angle
Dry
Other improper action
21
48
Dark - lighted roadway Clear
Dry
Operating vehicle in erratic,
reckless, careless, negligent or
improper manner
21
Daylight
N/A
90
9/23/2012
Sunday
Single vehicle
3:10 AM crash
91
10/2/2012
Tuesday
8:32 AM Rear end
Daylight
N/A
Wet
Other improper action
40
54
92
10/6/2012
Saturday
Dark - lighted roadway Rain
Wet
33
10/8/2012
Monday
Daylight
N/A
Dry
No improper driving
Disregarded traffic signs,
signals, road markings
40
93
6:20 PM Rear end
Sideswipe, same
9:30 AM direction
20
26
94
10/12/2012
Friday
Daylight
N/A
Dry
28
73
95
10/28/2012
Sunday
Daylight
Cloudy/Rain
Dry
Inattention
Disregarded traffic signs,
signals, road markings
51
35
96
11/5/2012
Monday
6:55 PM Angle
Dark - lighted roadway Clear
Dry
97
11/8/2012
Thursday
4:00 PM Angle
Daylight
Clear
Dry
98
11/10/2012
Saturday
Daylight
Clear
99
11/11/2012
Sunday
3:45 PM Angle
Sideswipe, same
1:12 PM direction
Daylight
Clear
100
11/17/2012
Saturday
1:30 PM Rear end
Sideswipe, same
12:20 PM direction
12:01 AM Rear end
Dark - lighted roadway N/A
Rt 16 WB toward Rt 28 SB. Vehicle 1, a truck, struck vehicle 2, which was in middle lane.
Rt 16 EB at Wellington Circle. Vehicles 2 and 3 stopped due to traffic and vehicle 1 rear ended
29 vehicle 2, which pushed it into vehicle 3.
Rt 28N at Rt 16W. Vehicle 1, emergency vehicle w sirens on, was crossing intersection when
vehicle 2 failed to yield and struck vehicle 1.
Wellington Circle SB. Vehicle 1 got caught in intersection after light turned red and vehicle 2,
had green, but made minor contact w vehicle 1.
Rt 28 at north section of Wellington Circle. Vehicle 1's tire exploded and caused vehicle to
spin into center median.
Rt 28 NB near Station Landing. Vehicle 2 came to a stop, but vehicle 1 was unable to brake
and struck vehicle 2.
Rt 16 W at Wellington Circle. Vehicle 2 was cut off by unknown vehicle and had to stop short
causing vehicle 1 to crash into vehicle 2.
Rt 28 SB toward Rt 16 EB. Vehicle 1 went straight through left turn lanes and struck vehicle 2
turning left.
Rt 16 EB off ramp. Vehicle 2 had yielded due to sign and vehicle 1 tried to brake, but slid into
back of behicle 2.
Rt 28 SB at Wellington Circle. Vehicle 1 was in left turn land, but continued straight and
struck vehicle 2 on its left.
Middlesex Ave at Ninth St. Vehicle 1 was travelling SB on Middlesex when unknown vehicle
entered from Ninth St and struck Vehicle 1 and fled.
45
64
Dry
No improper driving
Disregarded traffic signs,
signals, road markings
Disregarded traffic signs,
signals, road markings
31
32
Dry
Made an improper turn
66
43
Rt 16 E and Rt 28. Vehicle 1 ran red light and scraped vehicle 2, which had green light.
Rt 28S at Rt 16E. Vehicle 2 had green light and vehicle 1 ran red light causing collision
between the vehicles.
Middlesex Ave toward Rt 28S. Vehicle 1 attempted left from middle lane and struck vehicle 2
who was in left lane.
Dry
N/A
23
24
Rt 16 WB. Vehicle 2 rear ended vehicle 1.
41
34
Rt 28 SB and Rt. 16 EB. Vehicle 2 was in left turn lane and went straight when vehicle 1 was
making left in 2nd left turn lane.
33 N/A
101
11/21/2012 Wednesday
5:45 PM Angle
Daylight
Clear
Dry
Disregarded traffic signs,
signals, road markings
102
11/21/2012 Wednesday
Sideswipe, same
9:05 AM direction
Daylight
Clear
Dry
Inattention
55
41
Rt 16 WB toward Rt 28 SB. Vehicle 1, a TT, veered into right lane from middle lane and
collided with vehicle 2.
103
11/24/2012
Sideswipe, same
5:30 PM direction
Dark - lighted roadway Clear
Dry
Failure to keep in proper lane or
running off road
89
44
Rt 16 WB at Rt 28 SB. Vehicle 1 was in left turn lane and went straight when vehicle 2 was
making left in 2nd left turn lane causing a collision.
Saturday
Crash Data Summary Table
Wellington Circle (Medford, MA)
January 2011 - December 2013
Crash
Diagram
Ref #
Crash Date
Crash Day
Time of
Day
Manner of
Collision
104
11/24/2012
Saturday
6:10 PM Rear end
105
12/2/2012
Sunday
12:07 PM Rear end
Light Condition
Weather
Condition
Road Surface Driver Contributing Code
Ages
Comments
Dusk
Clear
Dry
Followed too closely
53
33
Daylight
Clear
Dry
26
30
Rt 16 EB to Rt 28 SB (Wellington Circle). Vehicle 2 was yielding to traffic and vehicle 1 struck
rear of vehicle 2.
Rt 28 NB onto Rt 16 EB. Vehicle 2 was merging onto Rt 16 and slowed when it was rear
ended by vehicle 1.
43
40
Rt 28 SB and Rt 16 EB. Vehicle 1 ran red light and collided with vehicle 2, which had green.
Rt 16 WB. Vehicle 1 was rear ended by vehicle 2 after intersection.
Entrance to McDonald Park from Rt 16 WB. Pedestrian was crossing when struck by police
cruiser.
Rt 28S and Rt 16E. Vehicle 1 had red light and vehicle 2 had green. Vehicle 2 made contact
with vehicle 1.
Rt 28N south of police barracks. Vehicle 2 was slowing for traffic ahead and vehicle 1 failed
to slow then struck rear of vehicle 2.
Rt 16W and Rt 28N. Vehicle 1 had green and vehicle 2 ran red then struck vehicle 1. Vehicle
2 fled.
106
12/12/2012 Wednesday
3:00 PM Angle
Daylight
Clear
Dry
Followed too closely
Disregarded traffic signs,
signals, road markings
107
12/16/2012
Sunday
No improper driving
35
35
12/21/2012
Friday
Dark - lighted roadway Snow
Dark - roadway not
lighted
Rain
Wet
108
3:20 PM Rear end
Single vehicle
8:20 PM crash
Wet
N/A
57
15
109
12/22/2012
Saturday
5:10 PM Head on
Dark - lighted roadway N/A
Dry
Failed to yield right of way
20
80
110
12/24/2012
Monday
1:13 PM Rear end
Daylight
Clear
Dry
No improper driving
57
26
111
12/27/2012
Thursday
11:00 AM Angle
Daylight
Cloudy
Dry
29 N/A
112
1/6/2013
Sunday
12:15 PM Angle
Daylight
Clear
Dry
No improper driving
Disregarded traffic signs,
signals, road markings
113
1/26/2013
Saturday
4:00 PM Angle
Daylight
Clear
Dry
114
2/1/2013
Friday
12:20 PM Angle
Daylight
N/A
115
2/4/2013
Monday
7:33 AM Angle
Daylight
Cloudy
116
2/4/2013
Monday
5:17 AM Rear end
117
2/16/2013
Saturday
4:35 PM Rear end
118
2/25/2013
Monday
10:13 PM Head on
119
3/4/2013
Monday
120
3/9/2013
121
27
85
26 Rt 28 S and Rt 16 E. Vehicle 1 ran red light an struck vehicle 2.
33
28
Ramp from Rt 16 WB and Middlesex Ave to Rt. 28 SB. Vehicle 1 was in left turn lane and
continued straight and struck left door of vehicle 2, which was turning left.
Dry
Disregarded traffic signs,
signals, road markings
Disregarded traffic signs,
signals, road markings and
other improper action
77
59
Rt 28 S and Rt 16 E. Vehicle 1 ran a red light and struck vehicle 2, which caused vehicle 3 to
61 strike rear of vehicle 2. V2 and 3 had green on Rt 16 EB.
Wet
N/A
36
22
Rt 28 N at Wellington Circle. Both operators unsure of how crash occurred and thought
other was at fault.
Dark - lighted roadway Clear
Dry
Followed too closely
27 N/A
Daylight
Dry
Followed too closely
Dark - lighted roadway N/A
Dry
9:15 AM Angle
Daylight
N/A
Saturday
1:25 PM Rear end
Daylight
3/9/2013
Saturday
122
3/11/2013
Monday
9:40 AM Rear end
Sideswipe, same
8:50 AM direction
123
3/15/2013
Friday
2:15 PM Rear end
124
3/17/2013
Sunday
11:00 AM Angle
125
3/19/2013
Tuesday
126
3/25/2013
127
45, 43
41
Failed to yield right of way
22
26
Dry
Failed to yield right of way
49
26
Clear
Dry
N/A
35
41
Daylight
Clear
Dry
34
34
Daylight
N/A
Dry
39
41
Daylight
Clear
Dry
51
60
Daylight
Clear
Dry
Followed too closely
Failure to keep in proper lane or
running off road
Failure to keep in proper lane or
running off road
Disregarded traffic signs,
signals, road markings
55
28
8:20 PM Angle
Dark - lighted roadway Rain
Wet
Driving too fast forconditions
49
77
Monday
3:20 PM Rear end
Dusk
Clear
Dry
Followed too closely
72
27
3/29/2013
Friday
7:50 PM Rear end
Dark - lighted roadway Clear
Dry
Followed too closely
52
44
128
3/29/2013
Friday
1:02 PM Rear end
Daylight
N/A
Dry
Followed too closely
31
27
129
4/6/2013
Saturday
1:51 PM Rear end
Daylight
N/A
Dry
Inattention
37
65
Rt 16W. Vehicle 1 was slowing for traffic and was rear ended by vehicle 2.
Dry
Disregarded traffic signs,
signals, road markings
25
43
Intersection of Middlesex Ave and Ninth St. Vehicle 1 turned onto Middlesex with red light
and struck vehicle 2, which had green.
130
4/6/2013
Saturday
5:40 PM Angle
Daylight
Cloudy
62 Rt 16 W. Vehicle 1 rear ended vehicle 2.
Rt 16 W east of Fellsway. Vehicle 1 was slowing when vehicle 3 struck rear of vehicle 2,
41 which caused it to strike rear of vehicle 1.
Rt 28 S. Vehicle 2 was traveling SB and vehicle 1 was attempting to enter Rt 28 S. Vehicle 1
disregarded stop sign and collided with Vehicle 2.
Rt 16W at Rt 28S. Vehicle 2 did not stop for red light and struck vehicle 1, which was
proceeding though green light.
Rt 28N in front of Margaritas Restaurant. Vehicles 1 and 2 were slowing for traffic when
34 vehicle 3 struck vehicle 2 causing it to strike vehicle 1.
Rt 16 W at Rt 28S. Vehicle 1 was slowing for red light and was struck from behind by vehicle
2.
Rt 16W cut off to Rt 28S. Vehicle 1 was in middle lane and forced over by unknown TT when
it struck vehicle 2 in the left lane.
On ramp to Rt 28S near Barracks. Vehicle 2 was slowing to merge and vehicle 1 failed to
slow, striking rear of vehicle 2.
Rt 28S. Vehicle 1 went straight in left turn lane and was struck by vehicle 2 in other left turn
lane.
N/A
Rt 16W at Wellington Plaza parking lot. Vehicle 2 was turning left into parking lot and vehicle
1 was traveling WB on Rt 16 when it lost control and struck vehicle 2.
Merge from Rt 16E onto Rt 28S. Vehicle 2 was yielding when struck from behind by vehicle 1.
Rt 16E at Rt 28. Vehicle 1 was following vehicle 2 too closely and crashed into back of vehicle
2.
Rt 16E prior to Wellington Circle. Vehicles 1 and 2 were slowing for traffic when vehicle 3
53 rear ended vehicle 2 causing it to rear end vehicle 1.
Crash Data Summary Table
Wellington Circle (Medford, MA)
January 2011 - December 2013
Crash
Diagram
Ref #
Crash Date
Crash Day
131
4/25/2013
Thursday
132
4/26/2013
Friday
133
4/30/2013
Tuesday
134
5/11/2013
Saturday
135
5/14/2013
Tuesday
136
5/17/2013
Friday
137
5/22/2013 Wednesday
138
5/24/2013
Friday
139
5/24/2013
Friday
140
5/25/2013
Saturday
141
6/2/2013
Sunday
142
6/13/2013
143
Time of
Day
Manner of
Collision
Light Condition
Weather
Condition
Road Surface Driver Contributing Code
Ages
Comments
Daylight
N/A
Dry
Disregarded traffic signs,
signals, road markings
79
82
Daylight
N/A
Dry
History heart/epilepsy/fainting
27
Daylight
Clear
Dry
56
Daylight
Cloudy
Dry
Failed to yield right of way
Disregarded traffic signs,
signals, road markings
43
1:25 AM Rear end
Daylight
Clear
Dry
Made an improper turn
31
Rt 28S at Wellington Circle. Driver of vehicle suffered seizure then struck guardrail.
Rt 28 NB toward Rt 28 SB at Wellington Circle (North of Middlesex Ave ramp to Rt 28 S.
Vehicle 2 tried to cut over to left lane and clipped back rear passenger side of vehicle 2,
29 N/A which was exiting.)
Intersection of Rt 28N and Middlesex Ave. Vehicle 2 went through red light and struck
vehicle 1 which had green on Middlesex Ave
17
Rt 16W immediately prior to Rt 28N/Wellington Circle. Vehicle 2 (TT) struck rear of vehicle 1.
Vehicle 2 was changing lanes.
26
10:50 AM Rear end
Daylight
Clear
Dry
Followed too closely
28
43
Dark - lighted roadway Clear
Dry
N/A
54
36
11:55 AM Angle
Single vehicle
11:06 AM crash
Sideswipe,, same
7:15 PM direction
10:45 AM Angle
Sideswipe, same
8:30 PM direction
5:45 PM Rear end
Sideswipe, same
6:00 PM direction
Daylight
Rain
Wet
Followed too closely
47
48
Daylight
N/A
Wet
Physical Impairment
30
39
8:20 PM Rear end
Dark - lighted roadway Rain
Wet
Followed too closely
59
33
Intersection of Rt 16E and Rt 28S. Vehicle 1 ran through yellow when it was struck by vehicle
2, which claimed to have green.
Rt 28S to Rt 16E. Vehicle 2 was slowing for traffic when it was rear ended by vehicle 1.
Rt 16W towards Rt 28S at Wellington Circle. Both vehicles making left when vehicle 1
merged into vehicle 2's lane and made contact.
Rt 28S at Wellington Circle just prior to Rt 16 W. Vehicle 2 stopped for red light and was rear
ended by vehicle 1.
Rt 28S at Rt 16. Vehicle 1 was trying to change lane and struck passenger side of vehicle 2.
Rt 28N at Station Landing. Vehicle 1 struck vehicle 2 in rear when travelling at high rate of
speed.
Daylight
Clear
Dry
Made an improper turn
23
69
Thursday
Sideswipe, same
4:50 PM direction
Sideswipe, same
1:00 PM direction
Daylight
Rain
Wet
Other improper action
22
64
Rt 28S and Rt 16E at Wellington Circle. Vehicle 1 was attempting to pass vehicle 2 and make
left turn to Rt 16 E from the right lane and vehicle 2 struck vehicle 1.
Rt 16W toward Rt 28S at Wellington Circle. Vehicle 1 was stopped in vehicle 2's blind spot
and vehicle 2 struck vehicle 2 on right side near passenger door.
6/18/2013
Tuesday
9:56 AM Rear end
Daylight
Clear
Dry
Followed too closely
53
28
Rt 16W approaching Rt 28 N. Vehicle 1 struck rear of vehicle 2, which was slowing for traffic.
144
6/21/2013
Friday
Dawn
Clear
Dry
Inattention
27
21
145
6/25/2013
Tuesday
Dark - lighted roadway Clear
Dry
Other improper action
61
28
146
6/28/2013
Friday
5:12 AM Rear end
Sideswipe, same
12:45 AM direction
Sideswipe, same
7:00 AM direction
Daylight
Dry
N/A
32 N/A
Rt 28S at Rt 16E. Vehicle 2 was stopped at red light and struck in rear by vehicle 1.
Rt 28N at Rt 16E. Vehicle 1 over passed vehicle 2 from left while making right turn to Rt 16E
and struck rear of vehicle 2.
Rt 28S south of Wellington Circle. Vehicle 1 was side swiped by vehicle 2, which is unknown
and fled.
147
6/29/2013
Saturday
Sideswipe, same
11:01 PM direction
Dark - lighted roadway N/A
Dry
No improper driving
70
31
Rt 28 N on right hand travel lane towards Rt 16E. Vehicle 2 attempted to pass vehicle 1 in
right hand land and was struck by vehicle 1 when vehicle 1 was changing lanes to turn right.
148
7/22/2013
Monday
Sideswipe, same
7:15 AM direction
Daylight
Clear
Dry
Failure to keep in proper lane or
running off road
28
46
149
7/23/2013
Tuesday
Daylight
Clear
Dry
Followed too closely
27, 54
50
150
7/23/2013
Tuesday
Daylight
Rain
Wet
Failed to yield right of way
151
8/2/2013
Friday
Daylight
Clear
Dry
152
8/4/2013
Sunday
8:20 PM Angle
Dark - lighted roadway Clear
Dry
Other improper action
Disregarded traffic signs,
signals, road markings
153
8/27/2013
Tuesday
8:40 PM Angle
Dark - lighted roadway Clear
Dry
154
8/29/2013
Thursday
Daylight
Dry
N/A
Failure to keep in proper lane or
running off road
155
9/1/2013
Sunday
Dry
Made an improper turn
9:00 AM Rear end
Sideswipe, same
6:09 AM direction
12:00 PM Rear end
12:48 PM Angle
Sideswipe, same
12:55 AM direction
Cloudy
Cloudy
Dark - lighted roadway N/A
Within Wellington Circle towards Rt 28S. Vehicle 1, a TT, failed to stay in its own lane while
turning left towards Rt 28S from Wellington Circle and struck vehicle 2.
Rt 16W prior to circle. Vehicle 4 struck vehicle 3 in rear forcing it into vehicle 2, which was
29 forced into vehicle 1.
49 N/A N/A Rt 16W prior to circle. Vehicle 2 cut in front of vehicle 1 and struck trailer of vehicle 1.
Rt 16W at Wellington Circle. Vehicle 1 (TT) veered into left lane and its trailer struck vehicle
37 64 37 2, which forced it into vehicle 3.
Intersection of Rt 16E and Rt 28S. Vehicle 1 ran red light and struck vehicle 2, which claimed
to have green.
35 35
Ramp from 16WB to Rt 28N. Vehicle 1 (Motorcycle) entered intersection when light turned
green and it collided with vehicle 2 that didn’t have green.
65 65
19
24
18
48
Rt 28S. Vehicle 1 went straight in left turn lane and struck vehicle 2 in other left turn lane.
Wellington Circle. Vehicle 1 was pulling out to the right lane from stop and made improper
turn and sideswiped vehicle 2.
Crash Data Summary Table
Wellington Circle (Medford, MA)
January 2011 - December 2013
Crash
Diagram
Ref #
Crash Date
156
157
9/7/2013
Crash Day
Saturday
9/11/2013 Wednesday
158
9/18/2013 Wednesday
159
10/2/2013 Wednesday
160
10/8/2013
Tuesday
161
10/13/2013
Sunday
162
10/15/2013
Tuesday
163
10/23/2013 Wednesday
164
10/26/2013
Saturday
165
10/27/2013
Sunday
166
11/5/2013
Tuesday
Time of
Day
Manner of
Collision
Weather
Condition
9:51 AM Angle
Daylight
Clear
Road Surface Driver Contributing Code
Disregarded traffic signs,
signals, road markings
Dry
6:10 PM Angle
Daylight
Clear
Dry
6:35 AM Angle
Light Condition
Failure to keep in proper lane or
running off road
43
42
Operating vehicle in erratic,
reckless, careless, negligent or
improper manner
27
26
Rt 16W west of Fellsway. Vehicle 1 attempted unsafe lane change and sideswiped vehicle 2.
Vehicle 1 fled.
22
26
Rt 28S at Rt 16E. Vehicle 1 continued straight from left turn lane and struck vehicle 2 in rear.
41
43
Rt 28S at Rt 16E. Vehicle 1 continued straight from left turn lane and struck vehicle 2 in rear.
Clear
Dry
Daylight
Clear
Dry
Daylight
Clear
Dry
Made an improper turn
Disregarded traffic signs,
signals, road markings
8:40 AM Rear end
Daylight
Clear
Other
No improper driving
50
61
5:15 PM Rear end
Daylight
Clear
Dry
Inattention
27
32
Rt 16W near Kappy. Motorcycle was struck in rear by unknown vehicle, which fled.
Rt 16W at Rt 28S. Vehicle 2 was stopping for traffic and struck in rear by vehicle 1. Vehicle 1
fled.
Daylight
N/A
Dry
Other improper action
52
67
Middlesex Ave and Rt 28N. Vehicle 1, a TT, was in left turn lane, but attempted to change
into a non left turn lane and struck vehicle 2 on the right hand side causing damage.
2:03 PM Rear end
Daylight
Clear
Dry
Physical Impairment
28
24
Rt 28S north of Wellington Circle. Vehicle 1 departed Wllinton plaza from Dunkin Donuts
onto Rt. 28S and rolled into vehicle 2.
4:52 PM Rear end
Sideswipe, same
7:38 AM direction
Daylight
Clear
Dry
46
25
Daylight
Clear
Dry
35
54
11:39 AM Rear end
Sideswipe, same
6:50 AM direction
Sideswipe, same
10:55 AM direction
11/9/2013
Saturday
11:55 AM Angle
168
11/12/2013
Tuesday
8:00 PM Angle
Dark - lighted roadway Clear
169
11/14/2013
Thursday
6:30 PM Rear end
170
11/19/2013
Tuesday
171
11/24/2013
Sunday
172
11/27/2013 Wednesday
12/4/2013 Wednesday
51
Daylight
167
173
62
Comments
Rt 28S at Rt 16W then Rt 16E. Vehicle 1 failed to stop for two red lights and collided with
vehicle 2 within rotary.
Rt 28N at Middlesex Ave traveling from Rt 16 EB through Wellington Circle. Both vehicles
were traveling from Rt 16E through Wellington Circle onto Rt 28N. Vehicle 1 changed lanes
and collided with vehicle 2.
Ages
Daylight
Disregarded traffic signs,
signals, road markings
Failure to keep in proper lane or
running off road
Rt 28S and Rt 16E. Vehicle 1 cut off vehicle 2 and suddenly stopped for red light. This caused
vehicle 2 to rear end vehicle 1.
Rt 16W. Vehicle 2 (TT) was travelling straight and vehicle 1 committed a lane violation and
attempted to enter lane with vehicle 2 causing collision.
Rt 16E and Rt 28S. Two car accident in the intersection. Vehicle 1 was in left lane of Rt 28SB
and attempting to drive straight. Another vehicle on the right hand side of vehicle 1 cut him
off and made left turn to Rt 16 EB. After this, vehicle 1 drove around this vehicle to the right
side and was then struck by vehicle 2 travelling on Rt 16 EB.
Rt 16E prior to Wellington Circle. Vehicle 1 made unsafe lane change from right lane to
middle land and struck vehicle 2.
64
31
Dry
Other improper action
Failure to keep in proper lane or
running off road
42
46
Dark - lighted roadway Clear
Dry
Followed too closely
21
34
3:10 PM Rear end
Dark - lighted roadway Clear
Dry
Followed too closely
27
37
Rt 28S at Rt 16 W. Vehicle 2 stopped for a red light and was rear ended by vehicle 1.
Ramp onto Rt 28S from Rt 16. Vehicle 2 was slowing for a yield sign and was rear ended by
vehicle 1.
9:50 PM Head on
Dark - lighted roadway Clear
Dry
Wrong side or wrong way
56
54
Wellington Circle at Middlesex Ave. Vehicle 1 was driving the wrong way, traveling
eastbound on Rt 16 WB and struck vehicle 2, which was travelling right way on Rt 16WB.
9:45 AM Rear end
Daylight
Wet
Other improper action
36
43
Rt 28S, south of Wellington Circle.Vehicle 2 was stopping to yield for police and was rear
ended by vehicle 1.
23
23
Rt 16W at Wellington Circle. While driving through the light, vehicle 1 was sideswiped by
vehicle 2. Vehicle 2 fled.
N/A
Rain
Dry
Sideswipe, same
4:00 PM direction
Daylight
Clear
Dry
Operating vehicle in erratic,
reckless, careless, negligent or
improper manner
7:20 PM Angle
Dark - lighted roadway Clear
Dry
No improper driving
72
27
Rt 28N at Station Landing. Vehicle 2 was entering the second travel lane from Station Landing
parking lot in front of vehicle 1 and vehicle 1 struck driver's side door of vehicle 2.
174
12/10/2013
Tuesday
175
12/21/2013
Saturday
10:42 PM Rear end
Dark - lighted roadway Clear
Dry
Followed too closely
43
56
Rt 16W at CVS Pharmacy. Vehicle 2 was slowing for traffic when it was rear ended by vehicle
1.
176
12/21/2013
Saturday
Sideswipe, same
10:00 AM direction
Daylight
Dry
Disregarded traffic signs,
signals, road markings
76
60
Rt 16W to Rt 28S. Vehicle 1 attempted to change lanes from straight only lane on Rt 16WB to
left turn lane and struck vehicle 2.
Summary based on Crash Reports obtained from the State Police
Cloudy
CONTINUED ON
SHEET 2
NOT TO SCALE
XX - CORRESPOND TO REFERENCE NUMBER ON CRASH DATA SUMMARY TABLE
SYMBOLS
TYPES OF CRASH
SEVERITY
COLLISION DIAGRAM
MEDFORD, MA
TIME PERIOD ANALYZED: 2011-2013
SOURCE OF CRASH REPORTS: STATE POLICE
DATE PREPARED: JANUARY 2016
CONTINUED ON
SHEET 1
NOT TO SCALE
XX - CORRESPOND TO REFERENCE NUMBER ON CRASH DATA SUMMARY TABLE
SYMBOLS
TYPES OF CRASH
SEVERITY
COLLISION DIAGRAM
MEDFORD, MA
TIME PERIOD ANALYZED: 2011-2013
SOURCE OF CRASH REPORTS: STATE POLICE
DATE PREPARED: JANUARY 2016
Crash Data Summary Tables and Charts
Wellington Circle, Medford, MA
CRASH MONTH
15%
11%
10%
6%
11%
10%
9%
9%
7%
5%
9%
8%
8%
7%
5%
0%
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
CRASH DAY OF WEEK
25%
20%
20%
16%
15%
15%
13%
14%
TUESDAY
WEDNESDAY
12%
10%
10%
5%
0%
MONDAY
THURSDAY
FRIDAY
SATURDAY
SUNDAY
CRASH TIME OF DAY
20%
15%
10%
5%
0%
6%
9%
12%
10%
14%
15%
9%
11%
5%
5%
2%
2%
CRASH MANNER OF COLLISION
40%
35%
30%
25%
20%
15%
10%
5%
0%
34%
32%
24%
5%
Single
Vehicle
Crash
2%
Rear-end
Angle
Sideswipe, Sideswipe,
same
opposite
direction
direction
2%
Head on
0%
1%
Rear to Rear Unknown
Crash Data Summary Tables and Charts
Wellington Circle, Medford, MA
CRASH LIGHT CONDITION
80%
68%
60%
40%
27%
20%
1%
2%
Dawn
Dusk
1%
0%
0%
1%
Darkunknown
roadway
lighting
Other
Unknown
0%
Daylight
Dark-Lighted
DarkRoadway
Roadway
not lighted
CRASH WEATHER CONDITION
60%
50%
40%
30%
20%
10%
0%
57%
29%
5%
7%
1%
1%
0%
0%
0%
0%
0%
CRASH ROAD SURFACE
100%
86%
50%
11%
1%
1%
0%
0%
0%
1%
0%
0%
Ages
30%
24%
25%
23%
18%
20%
17%
15%
8%
10%
5%
3%
4%
3%
70-79
80+
0%
15-20
21-29
30-39
40-49
50-59
60-69
Appendix D. Road Safety Audit References
Road Safety Audit References
Massachusetts Traffic Safety Toolbox, Massachusetts Highway Department,
www.mhd.state.ma.us/safetytoolbox.
Road Safety Audits, A Synthesis of Highway Practice. NCHRP Synthesis 336. Transportation Research
Board, National Cooperative Highway Research Program, 2004.
Road Safety Audits. Institute of Transportation Engineers and U.S. Department of Transportation, Federal
Highway Administration, www.roadwaysafetyaudits.org.
FHWA Road Safety Audit Guidelines. U.S. Department of Transportation, Federal Highway
Administration, 2006.
Road Safety Audit, 2nd edition. Austroads, 2000.
Road Safety Audits. ITE Technical Council Committee 4S-7. Institute of Transportation Engineers,
February 1995.