Town of Barnsta
able
Road
d Safetty Aud
dit
erville--West Barnstable Road
Routte 28 at Oste
Interrsectio
on
ember 2012
Nove
Prepared
d by the Capee Cod Comm
mission in
arnstable,
cooperation with thee Town of Ba
and
T Highway Division Tra
affic Safety
MassDOT
and Distrrict 5 Officess.
Road Sa
afety Audit – Ba
arnstable, Routte 28 at Ostervville-West Barnstable Road
Table of Conte
ents
Backgro
ound .................................................................................................................... 1
Introduction ................................................................................................................... 1
Project Data ................................................................................................................... 2
Multidis
sciplinary Team ................................................................................................... 2
Project Location and Descrip
ption................................................................................... 3
Road Sa
afety Audit: ......................................................................................................... 4
Audit Ob
bservations and Pote
ential Safetty Enhancements ............................................ 5
Safetty Issue #1. Conflicting Movementss .................................................................................. 5
Safetty Issue #2. Driver Beha
avior and Sp
peed ........................................................................... 6
Safetty Issue #3. Sight Distance and Veg
getation ......................................................................7
Safetty Issue #4. Signs ............................................................................................................... 8
Safetty Issue #5. Pavement and Marking
gs................................................................................ 9
Safetty Issue #6. Bicycle / Pe
edestrian Acccommodatio
ons........................................................10
Safetty Issue #7. Traffic Sign
nal Equipment .............................................................................. 11
Summary of Road Safety Aud
dit .................................................................................... 12
List of Appendices
Appendix
x
Appendix
x
Appendix
x
Appendix
x
Appendix
x
A. B. C. D. E. RSA
A Meeting Ag
genda................................................................................ 14
RSA
A Audit Team
m Contact List .................................................................... 16
Dettailed Crash Data ................................................................................. 18
Add
ditional Inforrmation ............................................................................. 26
Roa
ad Safety Au
udit Referencces................................................................... 32
List of Figures
Figure 1.. Locus Ma
ap .................................................................................................................. 3
Figure 2.. Rte. 28 att Osterville-W
West Barnstable Road in
ntersection .......................................... 3
List of Tables
Participatting Audit Te
eam Membe
ers............................................................................................. 17
Road Saffety Audit Re
eferences .................................................................................................... 33
Road Sa
afety Audit – Ba
arnstable, Routte 28 at Ostervville-West Barnstable Road
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
national conssensus was th
hat there should be goalls to reduce crashes, and
d in the 2005
5
feederal legisla
ation: Safe, Accountablee, Flexible, E fficient Tra
ansportation
n Equity Actt:
A Legacy for Users (SAFETEA-LU), there was m ore emphassis on improvving highwaay
afety along with a dedica
ated funding
g program—tthe Highwayy Safety Imp
provement
sa
Program (HS
SIP). The lattest federal legislation: M oving Aheead for Progress in the
211st Century (MAP-21), signed into la
aw on July 6 , 2012, has consolidated
d many
grams while retaining th
he Highway S afety Impro
ovement Pro
ogram
highway prog
(H
HSIP) as onee of the five core highwa
ay programs..
d fatalities and incapaciitating
In
n an effort to
o reduce the number of crash-related
in
njuries, Massachusetts developed a Strategic Higghway Safetty Plan in 20
006. The
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
sy
ystem.” Onee of the man
ny strategies noted in thee Safety Plan
n is to “condu
uct Road
ughout the Commonweaalth.”
Safety Auditss (RSA) at high-crash loccations throu
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
during variou
us processes,, including the
h Regionall Transportaation Plan, th
he
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 Barnstable has 45,193 reesidents as o f the 2010 United Statees Census of
Population, and is the mo
ost populouss of the fifteeen towns on Cape Cod. Although th
he
own lost a litttle population from the year 2000 t o 2010 in th
he United States Census
to
n, it remains the 27th high
hest commu
unity in the state for pop
pulation. In
off Population
adway miless, Barnstablee is ranked 5 th in the statte. While thee Town lost a
ceenterline roa
little populatiion, the Barn
nstable urba
anized area ( UZA) popullation did stiill grow and
Ro
oad Safety Aud
dit – Barnstable
e, Route 28 at Osterville-Westt Barnstable Ro
oad
Page 1
reemains fourtth highest in
n the state, fo
ollowing Bosston, Springgfield, and Worcester
UZA populatiions.
Barnstable is the home off seven villag
ges. Each is unique with
h its various attributes:
beaches and harbors, golff courses, sh
hopping placces, and musseums. In ad
ddition, all
th
he villages have residenttial componeents, and app
proximatelyy twenty-two
o public and
ols are locateed in the tow
wn, and one f or higher ed
ducation—Caape Cod
private schoo
Community College. Barrnstable is ho
ome to regio
onal servicess and activitiies, such as
he Cape Cod
d Hospital, th
he intermodal transportaation centerr, Barnstablee Municipal
th
Airport (the third busiestt airport in th
he state), thee ferry conn
nections to Nantucket an
nd
Martha’s Vineeyard, and th
he County government c omplex. In
n conclusion, there is a
ot of activity in the Town
n.
lo
In
n March 20112, CCC stafff presented a safety updaate and poteential Road Safety Audit
RSA) locatio
ons to the Ca
ape Cod Join
nt Transportaation Comm
mittee (CCJT
TC), and the
(R
reesulting 2012 RSA locatiions selected
d by the CCJJTC included
d the Barnstaable
ntersection of Route 28 at Ostervillee-West Barnsstable Road with an equ
uivalent
in
mage only (EPDO) of 54, ranking it a s one of the highest safeety problem
property dam
in
ntersection in Barnstablee County.
Projectt Data
The crash rep
ports were reequested from the Town
n of Bourne for this Road
d Safety
Audit and weere supplied by
b the Bourn
ne Police Deepartment. The crash daata were
d a crash diag
gram was deeveloped. In
n reviewing the crashes by manner of
reeviewed and
ollision, therre were 50%
% angle crash
hes, 31% rearr-end, and 15
5% same dirrection
co
siideswipe. Mo
ore than a th
hird of the crrashes, or 355%, occurred
d during thee hours from
m
10
0 a.m. to 2 p.m., while th
he next high
hest percentaage at 23% were between
n 2 and 6
p.m. Most off the crashes, or 77%, weere in dayligh
ht with 62% in clear weaather. The
highest driverr contributin
ng codes werre 23% that failed to yielld right of way, and 18%
%
due to driver inattention..
CCC staff also
o prepared a graph of the traffic volu
ume data. The average daily traffic
on Route 28 is about 23,0
000. Turnin
ng movemen
nt counts (TM
MCs) were performed fo
or
he intersection of Route 28 and Osteerville-West Barnstable Road in 200
08 and again
n
th
in
n 2012.
The crash dia
agram, summ
mary data, an
nd the trafficc count dataa are includeed in the
ppendices.
ap
Multidisciplin
nary Te
eam
The Road Saffety Audit wa
as scheduled
d with MassD
DOT and thee Town. Thee Road Safetyy
Audit meeting was held on Septembeer 28, 2012, b eginning arround 10:00
0 a.m., at thee
Barnstable Department of Public Wo
orks (DPW). The multid
disciplinary team also
Pa
age 2
Road Safety Audit – Barnstaable, Route 28 at Osterville-W
West Barnstable
e Road
viisited the sitte: Barnstab
ble, Route 28
8 at Ostervillle-West Barn
nstable Road
d
in
ntersection, during the RSA meeting
g, and then r econvened at the DPW conference
ro
oom.
Table 1.
Participatin
ng Audit Tea
am Memberss
Au
udit Team Member
Agency
y / Affiliation
Ro
oger Parsons, P.E.
Philip Field
Lis
sa Schletzbau
um
Tom Currier, P.E
E.
Pamela Haznar, P.E.
Edward Feeney
y
Barbara Lachan
nce
Co
orey O’Connor
Priscilla N. Lecle
erc
Town En
ngineer, Barn
nstable
Centerviille-Osterville--Marstons Mills (COMM) Fire Departme
ent
MassDO
OT Highway D iv., Safety
MassDO
OT Highway D iv., Supervissing Project Manager
MassDO
OT Highway D iv.– District 5
MassDO
OT Highway D iv.– District 5
MassDO
OT Highway D iv.– District 5
MassDO
OT Highway D iv., Safety
Senior Transportation
n Planner, Ca
ape Cod Com
mmission
Projectt Locattion an
nd Desscriptio
on
The intersection of Routee 28 at Osterrville-West B arnstable Road in the Town of
Barnstable is a four way signalized in
ntersection, w ith the road
dways crossing at a righ
ht
an
ngle. Route 28 is functio
onally classiffied in this s ection as an
n urban princcipal arterial,
while Osterviille-West Barrnstable Roa
ad is an urbaan collector.
Fiigure 1.
Loccus Map
Figure
e 2. Rte. 28 a
at
Osterrville-West
Barnsstable Road
interssection
Ro
oad Safety Aud
dit – Barnstable
e, Route 28 at Osterville-Westt Barnstable Ro
oad
Page 3
Road Safety Audit:
The RSA Team
m met for diiscussion of the existing conditions, visited the site for field
bservations,, and returneed to discusss the safety i ssues at thee location. Th
he summaryy
ob
crrash data, crrash diagram
m, and trafficc volume chaart were bro
ought to the RSA team
meeting, and are included
d in the App
pendices. In addition, a turning movvement coun
nt
or the interseection is inclluded in thee Appendix.
fo
The RSA Team
m reviewed the crash diagram, the c rash summary, the traff
ffic volumes,
nd discussed
d the existing conditionss.
an
The Barnstab
ble Police Deepartment prrovided locaal crash reports, and 26 crashes weree
fo
ound to be att the location from Septeember 1, 200
09-Septemb
ber 13, 2012,, with 19
mage only, 7 injury crashes, and no faatal crashes.. The resultiing
property dam
eq
quivalent prroperty dama
age only (EP
PDO) for justt these crash
hes is 54. Off the 26
crrashes from 2009-2012,, the majoritty, or 50%, w ere angle crrashes, with 31% rearen
nd, and 15%
% sideswipe in
n the same direction craashes.
Road Safety Audit observ
vations of thee safety issu
ues and poten
ntial enhanccements, and
d
a summary ta
able follow.
Pa
age 4
Road Safety Audit – Barnstaable, Route 28 at Osterville-W
West Barnstable
e Road
Audit Observvationss and Potenttial Saffety
Enhanccemen
nts
SAFETY IS
SSUE #1. CONFLIC
CTING MO
OVEMENTS
S
Observation
n:
T
Team discusssion included
d the traffic
olumes and volumes of turning
vo
ehicles in op
pposition to the speeds
ve
off the through traffic. Th
he lack of
ments at
protected leftt turn movem
he signal forr the Route 28 legs,
th
with few gapss in the straightth
hrough traffiic, is a major safety
isssue. It wass mentioned that many
affic signal would be
times, the tra
ch
hanging to yellow, or ev
ven red,
ehicle waiting
g to turn
before the ve
eft could atte
empt the turrn with a
le
cllear gap. Ass a result, th
he waiting
ehicle is then still somettimes in
ve
he middle off the intersecction while
th
he crossing traffic is beg
ginning the
th
green signal phase.
Another obse
ervation was that
ve
ehicles takin
ng opposing left turns
frrom the Route 28 legs may have
educed visibility at timess by the opp
posite vehiclee waiting to turn left, an
nd not see
re
he through vehicle behin
nd the vehicle waiting to
o turn.
th
Im
mproved con
ntrol of acce
ess managem
ment for the adjacent prroperty drive
eways to
alleviate confflicts at the intersection was also notted as a pottential beneffit.
With the rece
ent completio
on of the improvementss at nearby R oute 28 signals, and the
nclusion of le
eft turn lanes, it may be that the dri ver expectattion is to have a similar
in
co
onfiguration at this interrsection. Th
hrough vehiccle drivers may not be exxpecting
urning vehicles because they expectt the turning
g vehicles will have their own signal
tu
phase.
Enhancement:
e control and
d definition at the interseection and adjacent prop
perty
Provide more
onsider insta
allation of lefft turn lanes and phasess on Route 28.
driveways; co
Ro
oad Safety Aud
dit – Barnstable
e, Route 28 at Osterville-Westt Barnstable Ro
oad
Page 5
SAFETY IS
SSUE #2. DRIVER BEHAVIOR and SPE
EED
Observation
n:
Isssues with driver behavior were
nd included speeding,
discussed, an
nattention, disregarding or not seein
ng
in
th
he traffic signal, and failure to yield
he
right-of-way. In one crassh report, th
ed feeling that there wass
driver reporte
d the vehicle
enough time to turn, and
ca
ame up very
y fast.
Speed is also an issue wh
hen
moving forwa
ard from the
e stop
ne on green, and racing to be
lin
erge area. With two
first in the me
ane travel alo
ong Route 28 and
la
lim
mited passin
ng opportuniities,
drivers may try to overtake other
ars at the intersections.
ca
Occurrences of red light running
were mention
ned, and it may be
more in the Route 28 easstbound
direction. Sun glare may
y be an
al visibility att times. The
e
isssue to signa
Route 28 possted speed iss 50 miles pe
er
e vicinity of
hour (mph) except in the
th
he intersectio
on where it is reduced to
45 mph. It may be that vehicles
ng at higherr speeds
trravelling alon
ch
hoose to con
ntinue through the
ntersection in
nstead of sto
op when the
e
in
lig
ght turns yellow.
Enhancement:
Review signal timing to ensure that
he clearance
e time (yellow
w and all red
d
th
th
time) is adequate for the 85
eeds and acccording to th
he Institute of Transporttation Engin
neers (ITE)
percentile spe
T
Traffic Engine
eering Handbook equatio
on. When t he intersectiion is reconsstructed,
onsider prov
viding dilemm
ma zone dettection.
co
ment to prov
vide visibilityy that promo
otes calming and
Provide periodic enforcem
mproved beh
havior.
im
Pa
age 6
Road Safety Audit – Barnstaable, Route 28 at Osterville-W
West Barnstable
e Road
SAFETY IS
SSUE #3. SIGHT DISTANCE AND VEG
GETATION
N
Observation
n:
T
The team obsservations on sight dista
ance
and vegetatio
on were related, and
th
herefore, the
e issue categ
gories are
ombined. On Route 28,, the sight
co
distance is re
easonable altthough spee
eds
are apt to be high. A com
mment was
made that the
e signal heads should be
e
black backpla
ates to impro
ove visibility..
T
The Osterville
e-West Barnstable Road
approaches to
o the interse
ection do have
ve
egetative ob
bstructions. From the
Northbound approach on Osterville-W
West
Barnstable Ro
oad looking easterly
on Route 28, a stand of trees is
cllose to the roadway. From the
so
outh on Oste
erville-West Barnstable
Road approacching the inttersection,
egetation on
n the island at the
ve
co
orner of Mah
honey’s Gard
den Center
has grown hig
gher.
Enhancement:
T
Trim vegetation for impro
oved sight
trriangle at the
e intersectio
on.
Add black bacckplates to the signal he
eads for
im
mproved visibility.
Ro
oad Safety Aud
dit – Barnstable
e, Route 28 at Osterville-Westt Barnstable Ro
oad
Page 7
SAFETY IS
SSUE #4. SIGNS
Observation
n:
Signs in the vicinity of
th
he intersectio
on are
generally suffficient but
e brought
do need to be
up to date with
re
equirementss for retrore
eflectivity.
Itt was mentio
oned that
here may be
e drivers
th
lo
ooking for OsstervilleWest Barnsta
able Road,
and perhaps suddenly
sllowing or sto
opping in
order to nego
otiate a turn once the ro
oad
name sign is visible, posssibly leading to
re
ear-end crasshes. It wass pointed outt
th
hat the stree
et name sign
n is difficult to
ead. Rear-end crashes at this
re
in
ntersection made up the second high
hest
ty
ype of crash at 31% of all crashes.
Enhancement:
Upgrade signs for retro-reflectivity.
Add a white on green sign in advance
e of
he intersectio
on with “Ostterville-Westt
th
Barnstable Ro
oad next signal”.
Pa
age 8
Road Safety Audit – Barnstaable, Route 28 at Osterville-W
West Barnstable
e Road
SAFETY IS
SSUE #5. PAVEMEN
NT AND MARKINGS
S
Observation
n:
Pavement con
ndition,
le
evel, and ma
arkings
ndition.
are in fair con
T
The pavemen
nt levels
ville-West
on the Osterv
Barnstable Ro
oad
approaches are slightly
ower than th
he Route
lo
28 pavement level.
T
The pavemen
nt on the
Route 28 app
proach
to
oward Hyann
nis is
ru
utted.
Enhancement:
With intersection
im
mprovementts the
pavement lev
vel and
markings sho
ould be
im
mproved, as feasible.
Ro
oad Safety Aud
dit – Barnstable
e, Route 28 at Osterville-Westt Barnstable Ro
oad
Page 9
SAFETY IS
SSUE #6. BICYCLE / PEDEST
TRIAN AC
CCOMMOD
DATIONS
Observation
n:
T
There are no bicycle or pedestrian
acccommodatiions at this
in
ntersection.
Enhancement:
Upgrade bicycle and pede
estrian
acccommodatiions with futture
maintenance and/or reco
onstruction
effforts.
Consider adding an island
d with the
le
eft turn laness for a break
k in
bicycle/pedesstrian crossin
ng of Route 28.
Pa
age 10
Road Safety Audit – Barnstaable, Route 28 at Osterville-W
West Barnstable
e Road
SAFETY IS
SSUE #7. TRAFFIC
C SIGNAL EQUIPME
ENT Observation
n:
T
The traffic sig
gnal equipme
ent at this in
ntersection
was reported to be lackin
ng in pre-em
mption
apabilities fo
or emergenccy vehicle access. It wass
ca
mentioned th
hat with mod
dern quiet ve
ehicles, the
siirens are nott heard by drivers, and the signal
pre-emption equipment iss necessary to allow for
sa
afer passage
e of emergen
ncy vehicles.
Itt was also mentioned that the signal head
backplates sh
hould be in black for imp
proved
viisibility.
Enhancement:
In
nstall pre-em
mption equip
pment in the traffic signaal for emergency respon
nders.
Add black bacckplates to the signal he
eads.
Ro
oad Safety Aud
dit – Barnstable
e, Route 28 at Osterville-Westt Barnstable Ro
oad
Pa
age 11
Summa
ary of Road Safetyy Auditt
T
The summary
y list of the Road Safety Audit obserrvations and enhanceme
ents is
or implemen
ntation of po
otential improvements
provided to assist in the design and/o
elicited during
g the processs. It is also
o recommend
ded that anyy design pro
ocess for
more involved
d geometric changes incclude furtherr analysis an
nd public inp
put.
Safety payofff estimates are subjectiv
ve and may b e based on
n the relative
e percent of
crrashes that may be redu
uced by the enhancemen
nt based on known and documented
d
crrash reductio
on factors, iff available, or estimated
d crash reducction based on a stated
so
ource [for ex
xample, low (<30%), medium (31%
% to 70%), and high (>7
71%)]. The
e
time frame is categorized
d as short-te
erm (<1 yearr), medium-tterm (1 to 3 years), or
ong-term (>3
3 years). Th
he costs are categorized
d as low (<$
$10,000), me
edium
lo
($
$10,001 to $50,000), or high (>$50,001).
Pa
age 12
Road Safety Audit – Barnstaable, Route 28 at Osterville-W
West Barnstable
e Road
Table
e 2. Potential Safety Enhanccement Summa
ary
Sa
afety Issue
Potential Safety Enhance
ement
Safety
Payoff
Time Frame Cost
Responsible
Ag
gency
Co
onflicting Movements
V
Volumes &Turning
g
Vehicles
Add left turn lanes on the
e Route 28 approa
aches
High
Medium to
Long-term
High
M
MassDOT
with local input
Drriver Behavior and
Speed
e periodic enforce
ement of the spee
ed limit.
Continue
Low
Mediumterm
Medium
Po
olice
Low
Short-term
Low
Low
Short-term
Low
Trim or remove bushes on the island to the right of Osterville
West Ba
arnstable Road no
orthbound approa
ach
Siight Distance and
d
Vegetation
Trim or cut
c back vegetatio
on as necessary to allow improved
d
visibility to the left on the Osterville West Barnstable
B
Road
southbound approach
MassDOT
with
w local input
Siigns
C
Condition
D
Directional guidan
nce
All signs
s to be Retro refle
ective
Add adv
vance street name
e signs to inform travelers that
Osterville-West Barnstable Road is the ne
ext street
Low to
Medium
Short-term
Low
M
MassDOT
with local input
Pa
avement & Markings
Adjust pavement level wh
here lower on the
e Cranberry Highw
way
o Sandwich Road to bring up to
approach to turn left onto
ch Road level
Sandwic
Low
Mediumterm
Medium to
High
M
MassDOT
with local input
Biicycle / Pedestrian
accommodation
Consider improved accom
mmodation for bic
cyclists and
pedestria
ans with future im
mprovements or maintenance
m
proje
ects
Consider adding an island with the left turn
n lanes for a brea
ak in
bicycle/p
pedestrian crossin
ng of the roadway
y
Medium
Medium to
Long-term
Medium to
High
M
MassDOT
with local input
Low
Mediumterm
Medium to
High
M
MassDOT
with local input
ment for emergen
ncy vehicle prioritty.
Install prre-emption equipm
Trraffic Signal Equip
pment
Add blac
ck backplates to the
t signal heads.
Road Safety Audit – Barnstable, Route
e 28 at Osterville-W
West Barnstable Roa
ad
Page 13
Appendix A. RSA Meeting Agenda Page 14
Road Safety Audit – Barnstable, Route 28 at Osterville-West Barnstable Road
Appendix B. RSA Audit Team Contact
List
Page 16
Road Safety Audit – Barnstable, Route 28 at Osterville-West Barnstable Road
Appendix C. Detailed Crash Data Page 18
Road Safety Audit – Barnstable, Route 28 at Osterville-West Barnstable Road
Collision Diagram
0
*
CA P E COD
lndtcate North by arrow
COMMISSION
Route 28 (Falmouth Rd.)
< <
5, ~
.. ..
1, 9
16, ~
(}). 6, 8, 11, 24
-{
Crash reports provided by the
Barnstable Pollee Department
september 2012
Not to Scale
SYMBOLS
~ Moving Vehicle
~ BacJung Vehrcle
~- - -
R
Non-involved Vehrcle
Pedestrian
(JO
Bicyclist
[SJ
Parked Vehicle
Cl
•
0
········
FIXed Object
Fatal Crash
InJury Crash
Vehicle Path
TYPES OF COLLISIONS
<
<
Each crash number corresponds
Rear-End
~~ Head On
<~
list of crashes.
EqUIYillent Property Dilma:e Only = 50
Turning Movement
~
Angle
~
Lane Oepamare
~
to the number on the summary
Side Swipe
~ Out of Control
~r
ACCIDENT INFORMATION
Animal
INTERSECTION Route 28 (Falmouth Road) AND Osterville-West Barnstable Road To wn of Barnstable
CRASHESFROM ______~9~11~nQ~0~9________TO ----~~~1~~~01~2~----------------
Source: Crash Diagrram developeed based on September 2009-2012 crash reportts provided by
n of Barnstab
ble Police Deepartment
the Town
Road Safetty Audit – Barnstable, Route 28 at Osterville
e-West Barnsta ble Road
Page 19
Crash
#
Crash
Date
Day
Crash
Time
1
9/27/2009
Sun
2
10/15/200
9
Thu
3
4
5
6
7
8
9
11/4/2009
12/7/2009
4/1/2010
6/12/2010
6/27/2010
7/27/2010
8/23/2010
Page 20
Wed
Mon
Thu
Sat
Sun
Tue
Mon
Vehicle
Travel
Directions
Vehicle Sequence of Events
Age of
Driver
- Veh.
1
Age of
Driver
- Veh.
2
Road
Surface
Weather
Driver
Contributing
Code
V1 slowing or
stopped
V2 slowing or
stopped
V1: W
V2: W
V2 comes to stop in traffic at
signal; V1 did not stop in
time and rear-ended V2
46
45
water
cloudy
V1 10 reckless
erratic
Angle
V1 turning left
V2 trav straight
ahead
V1: S
V2: E
V3: N
V1 with trailer turning left
onto OstWB Rd; V2 EB hit
trailer resulting in hitting V3
stopped at signal
28
44
wet
rain
1 no improper
driving
Rear-end
V1 slowing or
stopped
V2 traveling
straight ahead
V1: E
V2: E
V1 EB stopped to turn left
and hit by V2 (rear-end)
25
54
dry
clear
V1 16 illness
1
Angle
V1 trav straight
ahead
V2 trav straight
ahead
V1: N
V2: E
V1 NB turning left onto Rte.
28 (disregarding red signal)
and hit by V2 EB on Rte. 28
27
84
dry
clear
V1 3
Disregarded
traffic signs,
signals, rd
markings
0
Sideswipe
same
direction
V1 changing
lanes
V2
trav straight
ahead
V1: E
V2: E
V1 changing lanes and hit
V2
48
49
dry
clear
V1 19
inattention
Rear-end
V1 slowing or
stopped
V2 slowing or
stopped
V1: E
V2: E
V1 hit V2 in traffic as light
turned green, and V1 quickly
turned left on OstWB Rd
(red car)
unk
77
dry
clear
unknown
V1 backing
V1: N
pedestrian
V1 backing up into
Mahoney's and hit large cart
knocking it into a nearby 63yr-old pedestrian
77
dry
clear
unknown
Rear-end
V1 slowing or
stopped
V2 traveling
straight ahead
V1: E
V2: E
heavy traffic V1 stopping in
traffic was hit by V2
33
42
dry
clear
1 no improper
driving
Rear-end
V1 slowing or
stopped
V2 slowing or
stopped
V1: W
V2: W
V1 slowing stopping in traffic
and V2 sliding on wet
pavement into V1
58
21
wet
rain
V2 19
inattention
# of
# of
Vehicles
injuries
Manner of
Collision
9:29 AM
2
0
Rear-end
5:16 PM
3
0
1:06 PM
11:27 AM
4:35 PM
10:55 AM
11:43 AM
4:57 PM
12:48 PM
2
2
2
2
1
2
2
1
0
1
0
0
Other
Vehicle Action
Prior to Crash
Road Safety Audit – Barnstable, Route 28 at Osterville-West Barnstable Road
Age of
Driver
- Veh.
1
Age of
Driver
- Veh.
2
Road
Surface
Weather
V2 NB OstWB Rd and V1
turning right from Rte. 28
hits trailer
71
22
wet
clear
V1 4 Failed to
yield ROW
V1: E
V2: E
V2 stopped on Rte. 28 EB at
red light and hit by V1
22
53
wet
cloudy,
rain
V1 5 followed
too closely
V1 traveling
straight
V2
turning left
V1: E
V2: W
V1 Rte. 28 EB hit by V2
from Rte. 28 WB turning left
onto OstWB Rd
40
41
unk
cloudy
V2 4 Failed to
yield ROW
Angle
V1 traveling
straight
V2
turning left
V1: E
V2: S
V2 turning left after truck
cleared the intersection did
not see V1 in 2nd lane an hit
V1; V1 EB sees V2 turning
but cannot stop in time
20
41
wet
clear
V2 4 Failed to
yield ROW
Rear-end
V1 traveling
straight
V2
slowing or
stopped
V1: E
V2: E
V2 stopped on Rte. 28 EB at
red light and hit by V1; V1
left scene
unk
23
dry
cloudy
2
Angle
V1 traveling
straight
V2
turning left
V1: E
V2: S
V1 EB green light did not
see V2 and hit V2; V2 was
attempting to turn left - a car
had let V2 go
25
(not
reporte
d)
dry
clear
0
Sideswipe
same
direction
V1 turning right
V2 traveling
straight
V1: E
V2: E
V1 turns right from left lane
into V2 in right lane both EB
on Rte 28 (3rd car behind
chasing?)
V1: E
V2: W
V1: S
V2: E
Day
Crash
Time
# of
Vehicle
s
# of
injurie
s
Manner of
Collision
Vehicle Action
Prior to Crash
9/30/2010
Thu
8:02 AM
2
0
Angle
11
10/1/2010
Fri
5:28 PM
2
0
Rear-end
12
12/22/201
0
Wed
4:24 PM
2
0
Crash
#
Crash
Date
10
13
14
15
16
1/13/2011
2/4/2011
4/17/2011
5/15/2011
Thu
Fri
Sun
Sun
9:27 AM
12:01 PM
10:48 AM
3:17 AM
2
2
2
2
0
0
Vehicle
Travel
Directions
Vehicle Sequence of Events
V1 turning right
V2 trav. straight
V1: W
V2: N
V1 slowing or
stopped
V2 slowing or
stopped
Angle
17
5/26/2011
Thu
10:04 PM
2
1
Angle
V1 turning left
V2 traveling
straight
18
7/9/2011
Sat
6:13 PM
2
0
Sideswipe
opposite
direction
V1 turning left
V2 traveling
straight
Road Safety Audit – Barnstable, Route 28 at Osterville-West Barnstable Road
V1 turning left from Rte 28
EB and did not see V2 on
the other side of third V that
had turned S; V! and V2
collide
V1 Rte 28 WB waiting to turn
left, begins turn & collides
with V2 Rte 28 EB (V1 Op
statement included that V2 came
up very fast and landed at the far
end of Mahoney's after collision)
Page 21
Driver
Contributing
Code
unknown
1 no improper
driving
21
25
wet
cloudy
V1 9 Failure to
keep in lane;
V2 1 no
improper driving
18
31
dry
cloudy,
fog
V1 4 Failed to
yield ROW;
V2 1 no
improper driving
38
38
dry
clear
unknown
Crash
#
19
20
Crash
Date
8/26/2011
9/5/2011
Day
Fri
Mon
Crash
Time
12:54 PM
7:28 PM
# of
Vehicle
s
2
2
# of
injurie
s
0
2
Age of
Driver
- Veh.
1
Age of
Driver
- Veh.
2
Driver
Contributing
Code
Vehicle
Travel
Directions
Vehicle Sequence of Events
Angle
V1 traveling
straight
V2
traveling
straight
V1: E
V2: N
V1 Rte 28 EB as the signal
turning red and V2 proceeds
and both vehicles collide
39
40
dry
clear
Angle
V1 traveling
straight
V2
turning right
V1: E
V2: E
V1 (motorcycle) Rte 28 EB
and V2 Rte 28 EB and both
vehicles collide; V1 Op
stated that V2 pulled over
right into him
52
74
dry
cloudy
V1 10 reckless
erratic
V1: W
V2: S
V1 Rte 28W when hit by V2
from OstWB Rd SB; V2
reported unable to stop snow
47
26
snow
snow
V1 3
Disregarded
traffic signs,
signals, rd
markings
Manner of
Collision
Vehicle Action
Prior to Crash
Road
Surface
Weather
V1 3
Disregarded
traffic signs,
signals, rd
markings
21
1/21/2012
Sat
7:00 PM
2
0
Angle
V1 traveling
straight
V2
traveling
straight
22
2/5/2012
Sun
3:04 PM
2
0
Sideswipe
same
direction
V1 overtaking
passing V2
traveling
straight
V1: E
V2: E
V1 & V2 both Rte 28 EB thru
intersection and V1 tries to
pass V2 in merge area and
vehicles collide
36
44
dry
clear
V1 9 Failure to
keep in lane
23
3/17/2012
Sat
1:31 AM
2
0
Angle
(sideswipe
same dir)
V1 changing
lanes
V2
trav straight
ahead
V1: E
V2: E
V1 approaching intersection
in right lane but wants to
turn left; V1 moves into left
lane hitting V2
23
28
dry
clear
V1 19
inattention
24
4/30/2012
Mon
8:55 AM
2
0
Rear-end
V1 slowing or
stopped
V2 slowing or
stopped
V1: E
V2: E
V2 stopped in traffic and hit
by V1 - rear-end
41
47
dry
clear
V1 19
inattention, 20
distracted
25
5/31/2012
Thu
6:58 AM
2
0
Angle
V1 turning left
V2 traveling
straight
V1: E
V2: W
V1 Rte 28 E and V2 Rte 28
W; V1 attempted LT and
collision
56
41
dry
clear
V1 4 Failed to
yield ROW 6
made an
improper turn
26
8/1/2012
Wed
1:32 PM
2
1
Angle
V1 turning left
V2 traveling
straight
V1: W
V2: S
V1 Rte 28 WB attempted LT
while V2 traveling straight
and collision
65
60
dry
clear
V1 18 visibility
obstructed
Source: Barnstable Police Department crash reports for this location from September 2009-2012.
Page 22
Road Safety Audit – Barnstable, Route 28 at Osterville-West Barnstable Road
CRASH MANNER OF COLLISION
60%
50o/o
-~------------
40%
30%
20% -~--------;
10% -!--.......,.-. - - - - '
0% -!----...,..........
Single
Vehicle
Crash
Rear-end
Angle
Sideswipe, Sideswipe, Head on
same
opposite
direction direction
Rear to
Rear
Unknown
CRASH MONTH
12% 12%
12% 12%
15%
J
F
M
A
M
J
J
s
A
0
N
D
CRASH DAY OF WEEK
30o/o ~--------------------------------------------~
23%
19%
20%
15%
12%
12%
10%
4%
Monday TuesdayWednesdayThursday
Friday
Saturday Sunday
CRASH TIME OF DAY
40%
30%
20%
19%
12%
10%
0%
6-10AM
10-2PM
2-6PM
6-lOPM
10-2AM
Road Safetty Audit – Barnstable, Route 28 at Osterville
e-West Barnstable Road
2-6AM
Page 23
CRASH LIGHT CONDITION
100%
80%
60%
40%
20%
0%
f lv/o
~
Daylight
80%
60%
40%
20%
0%
4%
0%
Dawn
Dusk
t 9%
n
0%
6%
DarkDarkDarkLighted Roadway unknown
Roadway not lighted roadway
lighting
0%
0%
Other
Unknown
CRASH WEATHER CONDITION
,..,..n,
V '- I U
-
h~7o 12%
--
n
~
C}0
4%
11
~?:;,4..
C}o
0%
4%
0%
0%
0%
0%
~<::-
~
CRASH ROAD SURFACE
80%
60%
40%
20%
0%
0%
2:-
0
4)
~
~
0
c
(/)
~
0%
-~
"'C "'C
c«!
0%
-=
"'C 0
C/)::l
E
._cO>
.t::.
(J)
Ill>
:::1
Cl ........
:
i5 .!:
(Q c>
~ .S o
(i)
.!.~
0%
0%
Q;
c
.t::.
6
~
0
c
c
.:JC
:::>
Driver Contributing Code
25%
20%
15%
10%
5%
0%
No improperDisregarded Failed to
driving
Page 24
Followedl
Lane
signals... yield to right too closely departure
of way
Reckless
1Dness
Visibility Inattention
Obstructed
Road Sa
afety Audit – Ba
arnstable, Routte 28 at Ostervville-West Barnstable Road
CRASH DRIVER AGES
40%
20%
10%
0%
31 o/o
29°/o
30%
14%
I
-
I
2%
15-20
21-29
=
=
10%
1-
30-39
4°/o
~
40-49
50-59
60-69
Road Safetty Audit – Barnstable, Route 28 at Osterville
e-West Barnstable Road
8°/o
2°/o
70-79
80+
Page 25
Appendix D. Additional Information o
o
Page 26
Turning Movement Count Data
Hourly Traffic Volumes Graph
Road Safety Audit – Barnstable, Route 28 at Osterville-West Barnstable Road
Cape Cod Comm1ssion
3225 Main St
6.arnstable MA 02630
Rt 28 @ Osterville-W .Barnstable Rd
Town: Barnstable
•unted by: PT, KW
www.c...
,.
File Name
Site Code
Start Date
Page No
'11
v<>un1ers: 4, 5
r
tStart Time
0•('()() PM
04 15PM
0430PM
Os1. w BamstableSB
NoM
left
26
29
19
Righi
~
2a-
Left
s
1
e
4
6
7
3
20
0
8
5
31
2.3
1
17
93
128
41
0
0
0
0
0
05-DOf'M
22
06: 15PM
Grand T:JCal
Aj)prdl%
Totzl%
15
130
34,8
4.3
29
25
182
14
~
0
43.4
8
11
2.1
33
41
04·45~PM
?,+--;1~9-~26
T:>tal
Groups Primad- CeB
Osl W Batnstable NB- - . Rt2i'E8
From West
FromE:al
Fram South
11Yu ~ I Ptcls
Let! I l1'WU Rlghl i
Left I Ttw\1 ~~ ~ Peds
4
19
174
0
9
44
0
12
133
1
16
to
14&
5
202
17
45
0
201
11
13
48
10
0
18
152
5
14
1119
6
8
0
132
3
19
30
776
167
0
14
86
35
32
6a
568
OJ
Rl28 ES
Peets
0
0
0
: 2887_05222012
: 00002887
: 5/2.2/2012
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89.9
103
7.8
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251
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0
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82
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897
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294
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s
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:rr
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ol
l'eOI
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ng Movemen
nt Count-Carrs
May 22, 2012 Turnin
Road Safetty Audit – Barnstable, Route 28 at Osterville
e-West Barnsta ble Road
476
52!1
530
Page 27
467
Cape Cod Commission
3225 Main St
Barnstable MA 02630
Rt 28 @ Osterville-W .Barnstable Rd
Town: Barnstable
,unted by: PT, KW
..,vunters: 4, 5
File Name : 2887_05222012
Site Code : 00002887
Start Date : 5/2212012
Page No
Gcou
Ost W Bamstabla SB
FromNor1h
Start Time
Lett
Tlw
04ilOPM
0
1
2
04:15PM
,
Rlltt Peds
I)
0
Letl
0 ,__0
0
0
0
0
I
0
..0
0
- 0-
0
1
0500Pt.t
1
0
0
1
1
2
25
0
0
0
1
0
0
20
!>.1
05:15PM
Gral\d Tol8t
Apprd1%
Total%
o_
2
25
38
•
50
7.5
3.8
0
0
Fn~mSouth
Righi
Peds
4
0
0
4
2
0
g,
0
1
1
0
oI
I
1
1
3
Prlllted- Trudts
Ost. W.3ilrn5table NB
nwu
1.,.-
1
Total
0430it-0
-~•SPM
Rt28EB
From East
0
0
11
733
0
0
1
6.1
1.0
208
I
0
0
0
0
0
0
1
nru[ Rlght
0
2
1
2
2
0
_o_
3
3
1
0
1
..1
0
5
..
308
7..5
308
7.5
0
Left
1
..0- 00~t-102
0
0
Peds [
38.5
9A
0
0
0
0
0
0
0
Rt28EB
From West
Ttvu Right
3
3
0
3
0
1
0
10-
,
0
1
0
2
2
13
11 8
3.8
78.5o
24.5
1
0
2
11.8
3.8
Peds lnl TotAl
0 , . _ IS
0
14
0
0
..I
g,
Ho<9l
fi
_1
t1i._
~
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~
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May 22, 2012 Turnin
Page 28
4
41
l
-~
8
0
21 §
Rick lfnl
41
l
Lefi
2
:1
Road Sa
afety Audit – Ba
arnstable, Routte 28 at Ostervville-West Barnstable Road
5
53
Cape Cod Commission
3225MainSt
Bamstable rAA 02630
Rt 28@ Osterville-W.Bamstable Rd
Town: Barnstable
""ounted by: PT, <W
....ounters: 4, 5
w ...... .c~~Pft
. JC· , . ,.. . . .
PH=
91
131
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256
File Name : 2887 052.22012
Site Code : 00002887
Start Date : 5/2212012
Page No : 2
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47
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Peak Hour Data
T
Nortn
ng Movemen
nt Count-Pea
ak Hour Dataa
May 22, 2012 Turnin
Road Safetty Audit – Barnstable, Route 28 at Osterville
e-West Barnsta ble Road
Page 29
53t
538
-171
528
2076
Cape Cod Commission
3225~4inSI
Barnstable MA 02630
Rt 28@ Ostervll e-W.Bamstable Rd
tO
File Name : 2887_05222012
Site Code 00002887
Start Date : 5/22/2012
Page No : 1
t:'ffJ
Town: Barnstable
)Unted by: PT, KW
vounters: 4, 5
O$l W Barnltet'e SB
Start Ttme
lAII
04;00 PM
04.15 PM
04,JO PM
04:45PM
20
30
19
19
From 1\lonh
nvu 1 R~gtt
30
17
34
9
42
7
28
~T~ 94
- -,32-
05:00PM
05:15PM
23
15
Grand Tola~l132
Apjx:h%
Total%
34.4
4.3
8
Pecss
0
0
0
0
L1
0
29
25
10
15
180
G8
4.4
8
17.2
2.1
0
0
0
0
0
left
4
e
7
4
21
7
6
34
25
978
'7
Trucks
98.5
2
2
()
1.1
31
ll1.2
- 3-
%TI'I,IC;ks
15
2.2
3
0
8.8
"4
On
130
11l2- -i4
4
- 0
0
G<'ouP5 PmW CaB - TI"Ud<s
OS( ·w.Bomslabla N8
Rt2~ E.8
From East
From Soulh
Thru [ Right Peel$
Left Thru I Righi Peds
44
173
10
0
11
e
0
0
47
12
200
17
7
0
49
11
0
203
0
14
10
8
0
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20
0
6
30
170
87
787
0
38
38
0
193
222
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86
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u
64
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9&6
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u
5
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May 22, 2012 Turnin
Page 30
Road Sa
afety Audit – Ba
arnstable, Routte 28 at Ostervville-West Barnstable Road
~
535
3102
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98.3
53
1.7
Barnstable Route 28 near Osterville-West Barnstable Road. Hourly Traffic Volumes by Direction
1200
-
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Road Safety Audit – Barnstable, Route
e 28 at Osterville-W
West Barnstable Roa
ad
Page 31
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Cape Cod Commission
Traffic Counts
Appendix E. Road Safety Audit
References
Page 32
Road Safety Audit – Barnstable, Route 28 at Osterville-West Barnstable Road
Road Safety Audit References
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.
Desktop Reference for Crash Reduction Factors. Report No. FHWA-SA-08-011. U.S.
Department of Transportation, Federal Highway Administration, September 2008
MassDOT Highway Division Traffic Engineering and Safety resources online, at
http://www.mhd.state.ma.us/default.asp?pgid=trafficIndex&sid=level2
U.S. DOT Memorandum from Tony Furst, Acting Associate Administrator for Safety, to Division
Administrators, January 12, 2012, Promoting the Implementation of Proven Safety
Countermeasures
Road Safety Audit – Barnstable, Route 28 at Osterville-West Barnstable Road
Page 33