Yarm
mouth
h
Road Safe
ety Au
udit
Unio
on Stre
eet – Station Avenu
ue
At U.S. Route 6 Rampss
Septem
mber 2011
e Cod Commission
Prepared by the Cape
In cooperration with
n of Brewste
er
The Town
And
T Highway Division
MassDOT
Table of Contents
Background............................................................................................................................................. 1
Introduction............................................................................................................................................ 1
Project Data ............................................................................................................................................ 2
Project Location and Description............................................................................................................ 3
Audit Observations and Potential Safety Enhancements ....................................................................... 5
Summary of Road Safety Audit ............................................................................................................. 12
List of Appendices
Appendix A. RSA Meeting Agenda ................................................................................................................... 14
Appendix B. RSA Audit Team Contact List ........................................................................................................ 16
Appendix C. Detailed Crash Data..................................................................................................................... 18
Appendix D. Additional Information ................................................................................................................. 23
Appendix E. Road Safety Audit References ....................................................................................................... 35
List of Figures
Figure 1. Locus Map........................................................................................................................ 3
List of Tables
Table 1.
Table 2.
Participating Audit Team Members .............................................................................. 2
Potential Safety Enhancements Summary..................................................................13
Backgrround
All levels of government—
— local, regio
onal, state, a nd federal—
—have been considering
ocations wheere crashes are most severe for manyy years. Sevveral years ag
go the
lo
hat there should be goalls to reduce crashes, and
d in the
national conssensus was th
2005 federal legislation: Safe, Accou
untable, Flexxible, Efficien
nt Transporttation
Equity Act: A Legacy for Users (SAFE
ETEA-LU), t here was more emphassis on
mproving hig
ghway safetyy along with a dedicated
d funding pro
ogram—the Highway
im
vement Prog
gram (HSIP)).
Safety Improv
n an effort to
o reduce the number of crash-related
d fatalities and incapaciitating
In
njuries, Massachusetts developed a Strategic Higghway Safetty Plan in 20
006. The
in
mission of thee Safety Plan
n is to “Deveelop, promotte, implemen
nt, and evalu
uate datadisciplinary strategies to
o maximize s afety for ussers of the ro
oadway
driven, multid
ystem.” Onee of the man
ny strategies noted in thee Safety Plan
n is to “condu
uct Road
sy
Safety Auditss (RSA) at high-crash loccations throu
ughout the Commonweaalth.”
MassDOT inccorporated th
he RSA as a requiremen
nt for securin
ng Federal fu
unding
Highway Saffety Improveement Progrram [HSIP] f unds) for saafety projectts.
(H
The Federal Highway Adm
ministration
n (FHWA) deefines a Roaad Safety Aud
dit (RSA) ass
th
he formal safety examina
ation of an existing or fu
uture road orr intersectio
on by an
in
ndependent,, multidiscip
plinary team.. The purposse of an RSA
A is to identiffy potential
afety issues and possiblee opportunitties for safetyy improvem
ments while considering
sa
alll roadway users.
The Cape Cod
d Commissio
on, serving as the region
nal planning agency for the fifteen
owns on Cap
pe Cod, has reviewed ma
any transporrtation locatiions over thee years
to
us processes,, including the
h Regionall Transportaation Plan, th
he
during variou
Transportatio
on Improvem
ment Progra
am, and Deveelopments of Regional Impact,
onsidering th
he existing safety issues and potentiial improvem
ments. In ad
ddition, the
co
CCC began lo
ooking at speecific safety locations annually throu
ugh safety studies and
Road Safety Audits (RSAs). A portion
n of the fedeeral HSIP funds are alloccated for
mprovementts to the regiion’s highestt crash locatiions.
im
Introdu
uction
The Town of Yarmouth has approxim
mately 24,00
00 year-roun
nd residents and many
seeasonal visittors. Yarmou
uth has histo
oric village a reas, local shops and sh
hopping
ways— Routee 6A, Route 6, and Routte 28—for
ceenters, and all three eastt-west roadw
onnections to other Cape Cod townss. Yarmouth
h, considereed to be in th
he “Midco
Cape” has vissitor attractio
ons along wiith north sid
de beaches on Cape Cod Bay, and
warm water south side beeaches on Na
antucket Sou
und. In add
dition the eassterly
border of tow
wn includes Bass River.
Ro
oad Safety Aud
dit – Yarmouth: Union Streett - Station Aven
nue at U.S. Rou
ute 6 Ramps
Page 1
The Union Sttreet – Statio
on Avenue an
nd Route 6 R amp interssections, bassed on
Equivalent Prroperty Dam
mage Only (E
EPDO)1, are t he fifth high
hest crash lo
ocation on
Cape Cod, and were seleccted by the Cape Cod Joiint Transporrtation Comm
mittee
CCJTC) as a Road Safetyy Audit locattion. The To
own of Yarm
mouth was co
ontacted for
(C
011, and the R oad Safety Audit was performed
a list of particcipants in Seeptember 20
with MassDO
OT and the Town.
Projectt Data
In
n the spring of 2011 CCC
C staff requessted crash reeports and in
nformation from both
he Town of Yarmouth an
nd the State Police for th
his Road Safe
fety Audit. With crashes
th
on the Route 6 ramps and
d also at the ramp interssections with
h Union Streeet and
Station Avenu
ue, the Regisstry of Moto
or Vehicles crrash recordss included bo
oth the statee
nd local poliice as respon
nding to crasshes in the v icinity. Alth
hough the deetailed crash
h
an
reecords data were not ava
ailable at thee time of RSA
A, a summarry of crash data
in
nformation from state reecords was used to devellop a crash diagram at each Route 6
amp intersecction. The ccrash diagram
ms and summ
mary develo
oped were reeviewed by
ra
he team. Turning movem
ment countss (TMCs) to r eview interrsection trafffic volumes
th
were perform
med and also available at the RSA meeeting. The crash diagraams,
ummary datta, and the TMC data aree included in
n the append
dices.
su
The Road Saffety Audit meeting was held on Mon
nday, Septem
mber 19, 2011, beginning
g
att 10:30 a.m., at the Yarm
mouth Dispo
osal Area Offfice. The mu
ultidisciplinaary team
he site: Unio
on Street – Station Aven
nue and Rou
ute 6 Ramp in
ntersectionss
allso visited th
— during the RSA meetin
ng.
T
Table 1.
Participating Audit Te
eam Memberrs
Audit Team Member
M
Agency
y/Affiliation
George
G
Allaire
Superinttendent, Yarm
mouth Department of Publiic Works
Robert Angell
Yarmoutth DPW
Steven Xiarhos
s, Deputy Chief
Police Department
Michael A. Wa
alker, Chief
Fire Dep
partment
Promise Otaluka
Federal Highway Adm
ministration – MA Division
Lisa Schletzba
aum
MassDO
OT Highway D ivision – Saffety
Pamela Hazna
ar
MassDO
OT Highway D ivision – Disttrict 5 Projectts
Barbara Lacha
ance
MassDO
OT Highway D ivision – Disttrict 5 Traffic
Priscilla N. Lec
clerc
Senior Transportation
n Planner, Ca
ape Cod Com
mmission
1 Based
Pa
age 2
on the CC
CC Report: Barrnstable County
y Intersectionss of Critical Safeety Concern, Ju
uly 2010
Road Sa
afety Audit – Yarmouth: Unio
on Street - Stattion Avenue att U.S. Route 6 Ramps
Projectt Locattion an
nd Desscriptio
on
United Statess Route 6 is the main lim
mited access highway on Cape Cod, with
nterchange or Exit 8 lead
ding to Unio
on Street –Sttation Avenu
ue area in Yaarmouth.
In
Union Street and Station Avenue in the Town of Y armouth ru
un in a north
h-south
d connect Ro
oute 6A to th
he north with
h Route 28 in
n the southeern part of
direction and
own. It is alsso a major ju
unction from
m United Staates Route 6 into Yarmou
uth and to
to
he east into parts of the neighboring
g Town of Deennis.
th
Fiigure 1.
Locus Map
Ro
oad Safety Aud
dit – Yarmouth: Union Streett - Station Aven
nue at U.S. Rou
ute 6 Ramps
Page 3
Figure 2.
Pa
age 4
Land Use and Environme
ental Map
Road Sa
afety Audit – Yarmouth: Unio
on Street - Stattion Avenue att U.S. Route 6 Ramps
Audit Observvationss and Potenttial
Safety Enhan
nceme
ents
The RSA Team
m reviewed the crash diagrams and summary th
hat were bassed on the
MassDOT cra
ash databasee information
n, along with
h the traffic volumes, an
nd the
urning moveement count information
n.
tu
Previous obseervations byy the team members weree mentioned
d, and includ
ded:
 In app
proximately 45 minutes,, five vehiclees were seen as exiting th
he
eastbo
ound ramps,, then taking
g a U-turn to
o get back on
n the EB ram
mp
 Perha
aps the signa
age on Routee 6 that inclu
udes the worrds “Dennis next two
g for some off the driverss on Route 6—
exits” is confusing
—who exit and see the
“Welccome to Yarm
mouth” sign
 The arrea is wide open which may encouraage increased
d speeds
ke a left turn
n
 At thee ramps nortth of Route 6, a car was w aiting for a while to tak
onto Union Streett southbound
d
 Driverrs exiting fro
om the eastb
bound ramp to head norrth are deterrred from
taking
g a left turn due to the op
pposing volu
umes and/orr travelling speeds;
urn around fu
urther down
n Station Aveenue
driverrs turn right and then tu
 Instea
ad of using th
he eastboun
nd ramp to head north, drivers are using
anoth
her exit to avoid the left turn off the r amp
 This iss not a very friendly bicyycle or pedesstrian locatio
on, but theree were
bicyclists observed going thro
ough the areaa
The team then walked thee site and ob
bserved both
h the location
n and a sample of the
trraffic operatiions in the field.
fi
The safety isssues noted byy the multid
disciplinary t eam are:
nd resulting d elays
 Confliicting trafficc volumes an
 Speed
d
 Signag
ge
 Sight distance
mmodation
 Bicyclle and Pedesstrian accom
Ro
oad Safety Aud
dit – Yarmouth: Union Streett - Station Aven
nue at U.S. Rou
ute 6 Ramps
Page 5
SAFETY IS
SSUE #1. CONFLIC
CTING VOLUMES
Observation
n:
T
The traffic vo
olumes on Sttation Avenu
ue
av
veraged 1,649 vehicles per hour forr the
en hours beg
ginning at 8 a.m., and th
he peak
te
hour began at 3:00 p.m. with 1,776
ve
ehicles in that hour as counted in Au
ugust
2009.
T
The traffic co
ount data on Union Stree
et north
off Route 6 av
veraged 862 vehicles perr hour
or the same ten hour tim
me frame based on
fo
a June 1996 count. The peak hour was
ag
gain at 3:00
0 p.m. with 965 vehicles in that
hour.
Station Aven
enue at Route 6 EB
Casual observ
vations show
wed vehicless
delayed in ma
aking left turns both on
xiting and en
ntering the ramps. Vehiccles
ex
trravelling SB and turning right to go on
Route 6 EB may hide a ve
ehicle that iss
trravelling SB from the vie
ew of a vehiccle
waiting at the
e end of the ramp.
T
Turning Move
ement Countts were performed
f
e Route 6 ramps on
att both of the
September 12
2, 2011, werre brought to the
RSA Team me
eeting, and are included
d in
he appendice
es.
th
amps
High traffic vo
olumes along with the
co
onflicting turrning movem
ments in and
d out
e Route 6 ra
amp intersecctions
off each of the
emerged as the primary safety issue..
Angle crashess accounted for 40% of the
eported crash
hes. Rear-e
end
2008-2010 re
crrashes comp
prised about 28% of the
e
crrashes at bo
oth intersectiions.
Itt was noted that most off the crashes
were not duriing the summ
mer; 85%
occurred in th
he October to May time
frrame.
Pa
age 6
mps
Road Sa
afety Audit – Yarmouth: Unio
on Street - Stattion Avenue att U.S. Route 6 Ramps
Enhancement:
Roundabouts were mentiioned as a
possible long--term improv
vement to
re
educe confliccts for both of the
Route 6 ramp
p intersection
ns with
Union Street and Station Avenue.
T
The roundabo
outs would remove left
urns from the intersectio
on
tu
movements and slow trafffic to allow
fo
or gaps.
T
Traffic signal systems (no
ot
discussed at the meeting) may also
d for this loccation.
be considered
eft turn pock
kets were mentioned
Le
o allow for vehicles waitiing to turn
to
le
eft onto the Route 6 ram
mps to be
out of the north-south flo
ow. If
warranted, prroviding space for
ve
ehicles queu
ued to make left turns
onto either off the ramps would
ough vehicless to
allow for thro
proceed. This treatment was not
preferred by those presen
nt due to
he high volumes and perrceived
th
sp
peeds.
Station
n Avenue at Rou
oute 6 EB
Union Street
et at Route 6 WB
W ramps
Ro
oad Safety Aud
dit – Yarmouth: Union Streett - Station Aven
nue at U.S. Rou
ute 6 Ramps
Page 7
SAFETY IS
SSUE #2. SPEED
Observation
n:
T
The posted sp
peed limit on
n Union Stre
eet
and Station Avenue in the
e vicinity of
th
he Route 6 ramps is 40 miles per
ver, the multtidisciplinary
y
hour. Howev
te
eam membe
ers reported that vehicless
appear to be exceeding the posted
peeds.
sp
T
The roadway cross-sectio
on is fairly
wide, and as vehicles que
eue for
urning left, a portion of the vehicles
tu
trravelling thro
ough are passsing around
d
th
hose queued
d, partly on the shoulderr,
to
o continue trravelling on the main
ro
oute. Other vehicles cho
oose to waitt
behind the left-turning ve
ehicle.
S
Enhancement:
eed study off the Union
Perform a spe
Sttreet and Station Avenue corridors in
th
he area of th
he Route 6 ramps to
determine tra
avelling spee
eds and peak
k
ng the poste
ed
times, if any, for exceedin
sp
peed limits.
Fo
ollowing the
e speed study, focus
periodic enforcement to encourage
co
ompliance with the spee
ed limits.
S
Roundabouts at both ram
mp locations would slow speeds in th
he area, whiile providing
opportunity fo
or vehicles to turn safely
y and that m ay reduce delays overa
all while
im
mproving saffety.
Pa
age 8
Road Sa
afety Audit – Yarmouth: Unio
on Street - Stattion Avenue att U.S. Route 6 Ramps
SAFETY IS
SSUE #3. SIGNAGE
E
Observation
n:
Itt was mentio
oned that U--turns had
been observe
ed at the easstbound ram
mp,
and that the “Dennis nexxt 2 exits” sig
gn
on Route 6 prior to this exit may be
th
he cause of driver confusion. At the
e
bottom of the
e eastbound ramps there
e
e to Yarmou
uth” sign.
iss a “Welcome
A comment was made that the guide
e
siign on the Route 6 eastb
bound offra
amp may be
e too close to
o the end of
th
he ramp—too close to th
he decision
point.
Approxima
ate location of guide sign
Enhancement:
Review the Route 6 guide
e
siign language
e and revise
acccordingly.
Consider revission or
emoval of th
he sign “Dennis
re
next 2 exits” from Route 6
EB, prior to Exit 8,
Y
Yarmouth.
Review other sign locatio
ons,
in
ncluding the guide sign on
he EB off-ram
mp, for
th
potential improvement.
Route 6 EB ramp at Station
n Avenue
Ro
oad Safety Aud
dit – Yarmouth: Union Streett - Station Aven
nue at U.S. Rou
ute 6 Ramps
Page 9
SAFETY IS
SSUE #4. SIGHT DISTANCE
Observation
n:
T
The vegetatio
on in some lo
ocations is
obscuring visibility.
An example iss the Route 6 West sign
hown in the photograph
hs to the righ
ht.
sh
Enhancement:
T
Trim vegetation for impro
oved visibility.
y
Sign for Route 6 WB on Union Street
Pa
age 10
Road Sa
afety Audit – Yarmouth: Unio
on Street - Stattion Avenue att U.S. Route 6 Ramps
SAFETY IS
SSUE #5. BICYCLE AND PED
DESTRIAN
N
ACCOMMO
ODATION Observation
n: The bicyccle and
pedestrian acccommodatio
ons in this
se
ection are lim
mited.
T
There is a sid
dewalk on on
ne side –the
westbound side of Station
n Avenue that
iss not carried over the ramp median
d just after the
areas, and is discontinued
Route 6 overp
passes.
r
on Ave.
Enhancement:
Consider improved bicycle/pedestrian
n
acccommodatiion when recconstruction is
being conside
ered.
n Street
Ro
oad Safety Aud
dit – Yarmouth: Union Streett - Station Aven
nue at U.S. Rou
ute 6 Ramps
Pa
age 11
Summa
ary of Road Safetyy Auditt
n the following table, the
e summary list of the Ro
oad Safety Audit observations and
In
enhancementts is provided to assist in
n the design
n and/or imp
plementation
n of potential
im
mprovementts elicited du
uring the pro
ocess. It is a lso recomm
mended that for any
more involved
d geometric changes, th
he design pro
ocess include further an
nalysis and
public input.
Safety payofff estimates are subjectiv
ve and may b e based on
n the relative
e percent of
uced by the enhancemen
nt based on known and
crrashes that may be redu
documented crash reducction factors, if availablee, or estimatted crash red
duction
based on a sttated source
e [for examp
ple, low (<30
0%), medium
m (31% to 70%), and
high (>71%)]. The time frame is cattegorized ass short-term (<1 year), mediumte
erm (1 to 3 years), or long-term (>3
3 years). Th
he costs are categorized as low
(<
<$10,000), medium ($10,001 to $50
0,000), or h igh (>$50,0
001).
Many of the “Safety Payo
off” estimate
es in this rep
port were based on crash
h reduction
fa
actors in the
e Desktop Re
eference for Crash Reduc
uction Factors,
r Report No
o. FHWASA
A-08-011 by
y the U.S. De
epartment of Transportaation, Federa
al Highway
Administration, Septembe
er 2008.
Pa
age 12
Road Sa
afety Audit – Yarmouth: Unio
on Street - Stattion Avenue att U.S. Route 6 Ramps
Table 2.
Potential Safe
ety Enhanceme
ent Summary
Safety
Payoff
Time Frame
Cost
Resp
ponsible
Ag
gency
Conssider a roundabout for both ramp intersections.
High
Long-term
High
MassDOT
Left turn
t
pockets on Un
nion St. and Station
n Ave. to
delineate area for turnin
ng vehicles and allo
ow for
throu
ugh traffic to proceed
Low
M edium-term
Medium
MassDOT
Conssider traffic signals for both ramp interrsections.
Low
Long-term
High
MassDOT
Perfo
orm a speed study to assess speeds and times of
Speed
violations
Observations werre that many
Low
M edium-term
Medium
CCC or MassDOT
vehicles are travelling over
the posted speed limit
Focus enforcement effo
orts periodically to encourage
e
pliance with posted
d speed limits
comp
Low
M edium-term
Medium
State
Conssider a roundabout for both ramp intersections.
High
Long-term
High
MassDOT
ove sign on Route 6 “Dennis next 2 ex
xits”
Remo
Assess directional signa
age in terms of deciision points
r
and relocate
Low
M edium-term
Medium
MassDOT
g of
Maintain sight distancess through trimming
etation
vege
Low
Short-term
Low
MassDOT
Medium
Long-term
High
MassDOT
Safety Is
ssue
Conflicting Volu
umes
n left turns
High volumes a nd
in and out of Routte 6 ramps
in both EB and WB
B directions
Signage
Possible driver co
onfusion
and/or decision diifficulty
Sight Distance
onfusion
Possible driver c
and decision difficculty
Bicycle and Pedestrian
Accommodation
n, sidewalk
on one side discon
ntinuous
and no separate bicycle
b
accommodation
Potential Sa
afety Enhancem
ment
ycle/pedestrian acco
ommodation
Conssider improved bicy
when
n reconstruction is being considered
Road Safety Audit – Yarmouth: Union Street - Stattion Avenue at U..S. Route 6 Ramp
ps
Page 13
Appendix A. RSA Meeting Agenda Page 14
Road Safety Audit – Yarmouth: Union Street - Station Avenue at U.S. Route 6 Ramps
Road Safety
y Audit – Yarmo
outh: Union Sttreet - Station Avenue at U.S
S. Route 6 Ramps
Page 15
Appendix B. RSA Audit Team Contact
List
Page 16
Road Safety Audit – Yarmouth: Union Street - Station Avenue at U.S. Route 6 Ramps
Participating Audit Team Members
Date: September 19, 2011
Location: Yarmouth Disposal Area Office
Audit Team
Members
Agency/Affiliation
George Allaire
Superintendent, Yarmouth Department
gallaire@yarmouth.ma.us
of Public Works
508-744-5003
Robert Angell
Yarmouth DPW
rangell@yarmouth.ma.us
508-394-0141
Steven Xiarhos
Deputy Chief, Police Department
sxiarhos@yarmouth.ma.us
508-775-0445
ext. 2150
Michael A. Walker
Chief, Fire Department
Federal Highway Administration – MA
Division
mwalker@yarmouth.ma.us
508-398-2122
Promise.Otaluka@DOT.gov
617-494-2528
Lisa Schletzbaum
MassDOT Highway Division– Safety
Lisa.Schletzbaum@state.ma.us
617-973-7685
Pamela Haznar, P.E.
MassDOT Highway Division-District 5,
Projects
Pamela.Haznar@state.ma.us
508-884-4239
Barbara Lachance
MassDOT Highway Division-District 5,
Traffic
Barbara.Lachance@state.ma.us
508-884-4260
Priscilla N. Leclerc
Senior Transportation Planner, Cape Cod
Commission
pleclerc@capecodcommission.org
508-362-3828
Promise Otaluka
Email Address
Road Safety Audit – Yarmouth: Union Street - Station Avenue at U.S. Route 6 Ramps
Phone
Number
Page 17
Appendix C. Detailed Crash Data Page 18
Road Safety Audit – Yarmouth: Union Street - Station Avenue at U.S. Route 6 Ramps
Source: MassDOT Highw
way Division Cra
ash Reports forr the location, 2 008-2010.
Road Safety
y Audit – Yarmo
outh: Union Sttreet - Station Avenue at U.S
S. Route 6 Ramps
Page 19
Source: MassDOT Highw
way Division Cra
ash Reports forr the location, 2 008-2010.
Page 20
Ro
oad Safety Audit – Yarmouth: Union Street - Station Aven
nue at U.S. Rou
ute 6 Ramps
Crash
Number
Crash
Diagram
Reference
Number
Crash
Time
# of
injuries
1
Crash Date
2273337
1/19/2008
9:10 PM
0
#r of
Vehicle
s
1
V1: Travelling
straight ahead
Single
vehicle
crash
V1: Travelling
straight ahead
V1:W
V1:(Ran off road right),(Collision
with curb)
45-54
45-54
Dry
Clear
Rte 6 W
V1: Travelling
straight ahead /
V2:Turning left
V1:S / V2:S
V1:(Collision with motor vehicle
in traffic) V2:(Collision with motor
vehicle in traffic)
16-20
35-44
Dry
Clear
UNION STREET /
MID CAPE
HIGHWAY /
V1: Turning left /
V2:Travelling
straight ahead
V1:S / V2:N
V1:(Collision with motor vehicle
in traffic) V2:
65-74
75-84
Dry
Clear
UNION STREET
Rte 6
V1: Travelling
straight ahead
V1:W
V1:(Ran off road left),(Collision
with embankment),(Collision with
ditch),(Collision with tree)
45-54
45-54
Snow
Sleet, hail
(freezing
rain or
drizzle)
MID CAPE
HIGHWAY Rte 6
V1: Travelling
straight ahead /
V2:Slowing or
stopped in traffic
V1:S / V2:S
V1:(Collision with motor vehicle
in traffic) V2:(Collision with motor
vehicle in traffic)
75-84
75-84
Dry
Clear
UNION STREET
Rearend
V1: Slowing or
stopped in traffic /
V2:Travelling
straight ahead
V1:S / V2:S
V1:(Collision with motor vehicle
in traffic) V2:(Collision with motor
vehicle in traffic)
16-20
35-44
Dry
Clear
UNION STREET
2
Angle
V1: Turning left /
V2:Travelling
straight ahead
V1:W / V2:N
V1:(Collision with motor vehicle
in traffic) V2:(Collision with motor
vehicle in traffic)
25-34
35-44
Ice
Cloudy
STATION
AVENUE
1
Single
vehicle
crash
V1:W
V1:(Collision with guardrail)
25-34
25-34
Snow
Snow
RAMP-UNION ST
TO RT 6 WB
3
Rearend
V1:S / V2:S /
V3:S
V1:(Collision with motor vehicle
in traffic) V2:(Collision with motor
vehicle in traffic) V3:(Collision
with motor vehicle in traffic)
25-34
55-64
Dry
Clear
UNION STREET
2/21/2008
11:21 AM
1
2
5
2491501
12/13/2008
2:00 PM
0
2
12/31/2008
8
2574361
9
2575071
10
A
2678576
2402683
7/10/2009
1/8/2010
12/26/2010
10/6/2008
12:13 PM
4:16 PM
7:00 PM
2:14 PM
0
0
0
0
3
Roadway
Rte 6 W
2293214
9:02 PM
Weather
Clear
4
1/27/2009
Road
Surface
Dry
1
2437916
Age of
Driver Oldest
Known
21-24
0
7
Age of Driver Youngest
Known
21-24
7:30 AM
0
Vehicle Sequence of Events
V1:W
1/22/2008
12:10 PM
Vehicle
Travel
Directions
V1:(Collision with other fixed
object(wall, building, tunnel,
etc.)),(Collision with tree)
2273372
2437795
Vehicle Action
Prior to Crash
Single
vehicle
crash
2
3*
6
Manner
of
Collisio
n
1
2
2
Rearend
Not
reporte
d
ANGLE
Single
vehicle
crash
Sideswi
pe,
same
directio
n
V1: Travelling
straight ahead
V1: Travelling
straight ahead /
V2:Slowing or
stopped in traffic /
V3:Slowing or
stopped in traffic
* During the RSA Team meeting it was noted that crash diagram numbers 2 and 3 are the same crash.
Source: MassDOT Highway Division Crash Reports for the location; 2008-2010
Road Safety Audit – Yarmouth: Union Street - Station Avenue at U.S. Route 6 Ramps
Page 21
Crash
Diagram
Reference
Number
1E
Crash
Number
2301788
Crash Date
3/26/2008
Crash
Time
4:25 PM
# of
injuries
0
#r of
Vehicle
s
Manner
of
Collisio
n
Vehicle Action
Prior to Crash
Vehicle
Travel
Directions
Vehicle Sequence of Events
Age of Driver Youngest
Known
Age of
Driver Oldest
Known
Road
Surface
Weather
Roadway
2
Angle
V1: Travelling
straight ahead /
V2:Slowing or
stopped in traffic
V1: Entering
traffic lane /
V2:Slowing or
stopped in traffic
V1:S / V2:S
V1:(Collision with motor
vehicle in traffic) V2:(Collision
with motor vehicle in traffic)
35-44
55-64
Not
reported
Clear
UNION STREET / Rte
6
V1:E / V2:E
V1:(Collision with motor
vehicle in traffic) V2:(Collision
with motor vehicle in traffic)
55-64
55-64
Dry
Clear
MID CAPE HIGHWAY
Rte 6 E
2E
2378415
8/2/2008
11:00 AM
1
2
Rearend
3E
2403414
11/18/2008
8:01 AM
0
2
Angle
V1: Turning right
/ V2:Slowing or
stopped in traffic
V1:S / V2:S
V1:(Collision with motor
vehicle in traffic) V2:(Collision
with motor vehicle in traffic)
35-44
55-64
Dry
Clear
UNION STREET / Rte
6
2
Rearend
V1: Slowing or
stopped in traffic /
V2:Travelling
straight ahead
V1:S / V2:S
V2:
55-64
55-64
Dry
Cloudy
UNION STREET Rte 6
/ STATION AVENUE
2
Unkno
wn
ANGLE
V1: Travelling
straight ahead /
V2:Turning left
V1:N / V2:N
V1:(Collision with unknown
movable object),(Collision
with impact attenuator/crash
cushion) V2:
65-74
>84
Wet
Rain
/ STATION AVENUE
Rte 6
Angle
V1: Travelling
straight ahead /
V2:Entering
traffic lane
V1:S / V2:E
V1:(Collision with motor
vehicle in traffic) V2:(Collision
with motor vehicle in traffic)
16-20
16-20
Dry
Clear
STATION AVENUE /
MID CAPE HIGHWAY
V1:W / V2:E
V1:(Collision with motor
vehicle in traffic) V2:(Collision
with motor vehicle in traffic)
Dry
Clear/Clou
dy
STATION AVENUE /
RAMP-RT 6 EB TO
UNION ST
V1:S / V2:E
V1:(Collision with motor
vehicle in traffic) V2:(Collision
with motor vehicle in traffic)
Clear
STATION AVENUE /
RAMP-RT 6 EBTO
UNION ST
Clear/Unk
nown
UNION STREET /
RAMP-RT 6 EB TO
UNION ST / RAMPUNION ST TO RT 6
EB
Clear
STATION AVENUE /
RAMP - UNION ST
TO RT 6 EB /
4E
5E
6E
7E
8E
9E
10E
2443197
2430524
2460316
2465231
2574445
2574931
2663655
11/27/2008
12/1/2008
4/8/2009
4/27/2009
7/24/2009
11/20/2009
11/3/2010
11:37 AM
6:00 AM
6:18 PM
6:39 PM
3:57 PM
9:55 PM
11:00 PM
0
0
0
0
0
0
1
2
Angle
V1: Turning left /
V2:Entering
traffic lane
V1: Travelling
straight ahead /
V2:Travelling
straight ahead
2
Rearend
V1: Slowing or
stopped in traffic /
V2:Travelling
straight ahead
1
Single
vehicle
crash
V1: Travelling
straight ahead
2
2
Angle
V1:E / V2:E
V1:(Collision with motor
vehicle in traffic) V2:(Collision
with motor vehicle in traffic)
V1:E
V1:(Collision with motor
vehicle in traffic),(Collision
with curb)
Source: MassDOT Highway Division Crash Reports for the location; 2008-2010.
Page 22
Road Safety Audit – Yarmouth: Union Street - Station Avenue at U.S. Route 6 Ramps
21-24
21-24
25-34
25-34
65-74
35-44
65-74
25-34
Dry
Dry
Dry
Appendix D. Additional Information o
Hourly Traffic Volumes Graph
o Turning Movement Count:

Union Street at the Route 6 WB Ramps

Station Avenue at the Route 6 EB Ramps
Road Safety Audit – Yarmouth: Union Street - Station Avenue at U.S. Route 6 Ramps
Page 23
Page 24
Road Safety Au
udit – Yarmouth: Union Street - Statio
on Avenue at U.S. Route 6 Ramps
September 12, 201
11 WESTBO
OUND RAM
MPS TMC CA
ARS
Road Safety
y Audit – Yarmo
outh: Union Sttreet - Station Avenue at U.S
S. Route 6 Ramps
Page 25
September 12, 201
11 WESTBO
OUND RAM
MPS TMC TR
RUCKS
Page 26
Ro
oad Safety Audit – Yarmouth: Union Street - Station Aven
nue at U.S. Rou
ute 6 Ramps
September 12, 201
11 WESTBO
OUND RAM
MPS TMC BIIKES
Road Safety
y Audit – Yarmo
outh: Union Sttreet - Station Avenue at U.S
S. Route 6 Ramps
Page 27
September 12, 201
11 WESTBO
OUND RAM
MPS TMC CA
ARS and TR
RUCKS
Page 28
Ro
oad Safety Audit – Yarmouth: Union Street - Station Aven
nue at U.S. Rou
ute 6 Ramps
11 WESTBO
OUND RAM
MPS TMC PE
EAK HOUR
September 12, 201
Road Safety
y Audit – Yarmo
outh: Union Sttreet - Station Avenue at U.S
S. Route 6 Ramps
Page 29
September 12, 201
11 EASTBO
OUND RAMP
PS TMC CA
ARS
Page 30
Ro
oad Safety Audit – Yarmouth: Union Street - Station Aven
nue at U.S. Rou
ute 6 Ramps
September 12, 201
11 EASTBO
OUND RAMP
PS TMC TR
RUCKS
Road Safety
y Audit – Yarmo
outh: Union Sttreet - Station Avenue at U.S
S. Route 6 Ramps
Page 31
September 12, 201
11 EASTBO
OUND RAMP
PS TMC BIK
KES
Page 32
Ro
oad Safety Audit – Yarmouth: Union Street - Station Aven
nue at U.S. Rou
ute 6 Ramps
September 12, 201
11 EASTBO
OUND RAMP
PS TMC CA
ARS and TR
RUCKS
Road Safety
y Audit – Yarmo
outh: Union Sttreet - Station Avenue at U.S
S. Route 6 Ramps
Page 33
September 12, 201
11 EASTBO
OUND RAMP
PS TMC PEAK HOUR
Page 34
Ro
oad Safety Audit – Yarmouth: Union Street - Station Aven
nue at U.S. Rou
ute 6 Ramps
Appendix E. 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.
Desktop Reference for Crash Reduction Factors. Report No. FHWA-SA-08-011. U.S.
Department of Transportation, Federal Highway Administration, September 2008
Page 36
Road Safety Audit – Yarmouth: Union Street - Station Avenue at U.S. Route 6 Ramps