2010 traffic report final

8/3/2019 2010 Traffic Report Final

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TRAFFIC REPORT2010

The Sea

le Department of Transportat

on


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11

2010SeattleTrafficReport

SectionOne Introduction

ThisreporthasbeenpreparedincompliancewithSeattleMunicipalCode11.16.220,whichrequires

theCityTrafficEngineertopresentanannualtrafficreportthatincludesinformationabouttraffic

trendsandtrafficcollisionsoncitystreets.

Ingatheringandcompilingtheinformationinthisreport,theSeattleDepartmentofTransportation

doesnotwaivethelimitationsonthisinformationsdiscoverabilityoradmissibilityunder

23U.S.C

409.

ForadditionalinformationaboutcollisionsonSeattlestreets,readersmaycontactBrianKemper,

ActingCityTrafficEngineer,[email protected].

Peter

Hahn,

Director

Brian

Kemper,

P.E.

SeattleDepartmentofTransportation ActingCityTrafficEngineer

SeattleDepartmentofTransportation

TableofContents1. Introduction2. TrafficVolumeandSpeed

a. MotorVehicleVolume

b. BicycleVolumec. PedestrianVolumed.

Traffic

Flow

Map

e. MotorVehicleSpeed

3. TrafficCollisions4. TrafficCollisionRates

a. CitywideCollisionRate

b. BicycleCollisionRate

c. PedestrianCollisionRate

5. TrafficEnforcementa. TrafficCitationsb. AutomatedTraffic

Enforcement

6. DataUseFauntleroyWaySW

7. FutureDataCollection8. Appendices


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SectionTwoTrafficVolumeandSpeed

TrafficVolume

and

Speed

TheSeattleDepartmentofTransportation(SDOT)collectsandmaintainsvolumedataforvehicles,

pedestriansand

bicycles. Volume

dataisusedto

identifythehighest

volumearterials

andcreatethe

citystrafficflow

map,identifyareas

wherepedestrian

andbicycletrafficis

highest,select

futureproject

locationsand

measure

performanceof

trafficprojectsonce

theyareinstalled.

SDOT

has

recently

started

collecting

vehicle

speed

data

regularly.

We

expect

this

data

to

be

used

in

selectingtrafficcalmingcandidatelocations,particularlywheretherearehighconcentrationsof

pedestriansandbicyclists.

Trafficvolume,speedand

reportedcollisionsarethe

threecardinalpiecesofdata

thattrafficengineersuseto

evaluatethefeasibilityof

engineeringchanges

to

the

streets.


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MotorVehicleVolume

SDOTisresponsibleforcountingthevolumeoftrafficoncertaincityarterialstreetseachyear.Trafficcountsaretakenthroughouttheyearat20

controlcountlocations,164screenlinelocationsand111additionallocations.

SDOTtakescontrolcountsat20locationseverymonth.Thesecountsareaddedtogetheranddividedby12toderiveamonthlycontrolfactor.This

factoristhenappliedtoeverycountwetaketocorrectforseasonalchangesintraffic. Inaddition,SDOTmeasuresvehiclevolumeat164screen

linelocations.TheselocationsareidentifiedinSeattlesComprehensivePlan,andthecountsareusedtodeterminescreenlinelevelsofserviceas

requiredby

the

plan.

We

also

measure

vehicle

volume

at

111

additional

locations

each

year.

A

complete

list

of

control,

screen

line

and

other

regularcountlocationscanbefoundintheappendix.

SDOTalsomeasuresvolumeatadhoclocationsthroughouttheyearasneededfortrafficanalysisandengineeringstudies. Foranexampleofhow

thesevolumesareused,pleaserefertoSectionFiveDataUse.

Usingtheannualcountstakenat19ofSeattlesbridges,SDOTderivesaproxynumberforcitywidemotorvehicleannualaveragedailytraffic. We

usethesecountsbecausedrivingalmostanywhereinSeattleislikelytoinvolvecrossingoneofthebridges. Basedonthisdata,traffichasincreased

0.86percentsince2009,whichappearstobeareversalofasteadydownwardtrendsince2006. ThegraphofSeattlesannualaveragedailytraffic

(AADT)onpage23showsthatwhilevolumehasincreasedslightlyover2009numbers,itisstilltrendingdownwardfromahighin2003,despitethe

steadilyincreasingpopulation.

SDOTisoftenaskedwhethertrafficvolumescorrelatetogasprices,employmentfiguresandtransitridership. Atthebottomofpage23aregraphs

showingaverageannualemploymentfiguresfortheSeattleTacomaBellevueregion,gaspricesandMetroandSoundTransitridershipfigures,

whichcanbecomparedwithgraphsofSeattlesAADTandpopulationatthetopofthepage.


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1,400,000

1,450,000

1,500,000

1,550,000

1,600,000

1,650,000

1,700,000

1,750,000

1,800,000

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

AverageAnnual

Employment

SeattleBellevueTacoma

860,000

880,000

900,000

920,000

940,000

960,000

980,000

1,000,000

20002001200220032004200520062007200820092010

AnnualAverageDailyTrafficin

Seattle

$

$0.50

$1.00

$1.50

$2.00

$2.50

$3.00

$3.50

$4.00

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

AverageAnnual

Price

of

UnleadedGasinSeattle

0

20,000,000

40,000,000

60,000,000

80,000,000

100,000,000

120,000,000

140,000,000

160,000,000

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

TotalTransit

Ridership

Source: Oil Price Information Service Source: US De artment of Labor Bureau of Labor Statistics Source: Kin Count Metro and Sound Transit

540,000

550,000

560,000

570,000

580,000

590,000

600,000

610,000

620,000

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

SeattlePopulation


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In2010thetoptenarterialsfortrafficvolumeincludethreestreetsthatdidnotmakethelistin2009:CorsonAvenueSnorthofSMichiganStreet,

LakeCityWayNEnortheastofNE95th

StreetandSMichiganStreeteastof6th

AvenueS. TheincreaseinvolumeforthelocationsonSMichigan

StreetandCorsonAvenueScouldbeduetothe2010closureoftheSouthParkBridge.

Top10

Arterial

Segments

by

Volume

Average

Week

day

Traffic

(AWDT)

AuroraAvenueN southof HarrisonStreet 79,200

EastMarginalWayS southof SAlaskaStreet 69,300

NE45thStreet westof NE45thPlace 46,800

MontlakeBoulevardNE northof NEPacificPlace 46,200

ElliottAvenueW southeastof WMercerPlace 45,900

LakeCityWayNE southwestof NE115thStreet 44,400

CorsonAvenueS northof SMichiganStreet 41,700

LakeCityWayNE northeastof NE95thStreet 39,500

ValleyStreet westof FairviewAvenueN 39,200

SMichiganStreet eastof 6thAvenueS 38,600


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BicycleVolume

ThecityofSeattlecountsbicyclesatselectedlocationsononeday

eachyear. Since2007,SDOThascountedbicyclesentering

downtowninoddnumberedyearsandatlocationsaroundthecityin

evenyears. In2010,wecountedatboththedowntowncordonand

thecitywidelocations. PleaseseeSectionSevenFutureData

Collectionforinformationonfuturebicycledatacollectionplans.

Asshowninthegraph,therehasbeensubstantialgrowthinbicycle

commutingasrepresentedbythedowntowncordoncount over

thepastseveralyears. Thesedatashowamarkeduptickin2009and

apositivegrowthtrend.

Thecordoncountsshowthatthenumberofbicyclistsenteringdowntown

duringthe

morning

commute

has

increased

by

21

percent

between

2009

and2010.Asrecordedbyvolunteersat30locations,3,251bicyclists

commutedintothedowntowncoreonthedayofthecountin2010.The

topfivelocationsforbicycliststoentertheCenterCityare,inorder:

ColmanDock,DexterAvenueN,theElliottBayTrail,theAlaskanWayPath,

andPineStreet.

However,the

citywide

count

showed

adecline

in

bicycling.

In

2008,

the

firstcitywidecount,therewere4,666bicyclists. In2010,thatnumber

declinedto3,961a15percentdecrease. Thesecountsareavital

measurementtoolasthecitystrivestoreachitsgoaloftriplingthe

numberofbicyclistsby2017.

22732475*

2677

3251

0

500

1000

1500

2000

2500

3000

3500

2007 2008 2009 2010

Number

ofBicyclists

SDOTBiennialBicycleCordon

Count

*2008Count isanestimation


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PedestrianVolume

SDOThaslesswelldevelopeddataforpedestrianvolume.Wemeasure

pedestrianvolumeusingtheDowntownSeattleAssociationsdowntown

pedestriancounts,bothsummerandholidayseason,aswellasUSCensus

figuresforSeattlespopulation.

Since2007,Seattlehasseenanincreaseinpopulationup7percent. During

thattime,

downtown

Seattle

has

seen

adecrease

in

pedestrian

traffic.

In2011,SDOTstartedusingtheNationalBicycleandPedestrian

Documentationprojectmethodologyforcountingbicyclesandpedestrians.

Thesespotcountswillprovideconsistent,annualpedestrianvolumesthatwe

cantrackovertime.

0

10000

20000

30000

40000

50000

60000

2007 2008 2009 2010

DowntownSeattle

Pedestrian

Counts

DSA

Summer

DSA

Holiday

Average

575,000

580,000

585,000

590,000595,000

600,000

605,000

610,000

615,000

2007 2008 2009 2010

Population

SeattlePopulation


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FlowMap

Oneoftheusesofannualvehiclecountsistocreatetheflowmap,

whichusesdifferentlineweightstoshowrelativetrafficvolumeson

arterialstreets.Acopyofthe2010FlowMapisshown.Priorto2008,

thismapwasdrawnbyhand.Startingin2008,themaphasbeenmade

electronicallyusingdatafromthetrafficcountsdatabaseandGIStools.

ThevolumesonthemaprepresenttheAverageAnnualWeekdayTraffic

(AAWDT)(5

day,

24

hour)

for

that

section

of

roadway.

This

map

is

also

availableonSDOTswebsite.


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MotorVehicleSpeed

Until2010,SDOTcollectedvehiclespeedattherequestofatrafficengineerforpurposesoftrafficsafetyinvestigations,prospectiveproject

selectionanddesign,andforevaluationofcompletedprojects. Engineersmeasurespeedinanumberofdifferentways,including:85thpercentile

speedoftraffic1;andhighendspeederpercentage2,ameasureofaggressivedrivers. Anexampleoftheuseofthehighendspeederpercentage

dataisinmeasuringareductioninthehighspeederpercentageafterinstallingatrafficcalmingmeasure.

Startingin2010,SDOTiscollectingspeeddatamuchaswecollect

volume

data

at

specified

locations

each

year,

in

addition

to

those

adhoclocationsthatservesitespecifictrafficevaluationneeds.

AuroraAvenueN,StoneWayN,FauntleroyAvenueSW,24thAvenue

NW,andRainierAvenueSareallspecifiedinthePedestrianMaster

Planaslocationstoreportontrendsinthe85thpercentilespeedof

traffic.

1Thespeedatorbelowwhich85percentoftraffictravels,sometimescharacterizedasthespeedareasonabledriverwillchooseasbeingsafe.

2Highendspeederpercentagehascometomeanthepercentageofdriverswhoexceedthepostedspeedlimitby10milesperhourormore.


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2010SpeedonSelectedArterials

Location Speedlimit Direction 85th

percentile

speed

Direction 85th

percentile

speed

Highend

Speeder

Percentage*

GreenwoodAvenueN,S/ON145thStreet 35 NB 41.8 SB 43.3 7.9%

SWAdmiralWay,SE/OSWCityViewStreet 30 NWB 40.6 SEB 42.1 25.5%

EllisAvenueS,S/OSWarsawStreet 30 NB 40.5 SB 40.1 17.5%

GreenwoodAvenueN, S/ON100thStreet 30 NB 40.3 SB 40.1 16.4%

4thAvenueS, S/OSBennettStreet 35 NB 39.9 SB 37 6.9%

35thAvenueSW, N/OSWWillowStreet 35 NB 39.8 SB 40.9 3.2%

PinehurstWayNE, NE/ONE115thStreet 30 NEB 39.7 SWB 40.9 17.7%

NE125thStreet, W/O25AvenueNE 35 EB 39.1 WB 39.9 5.5%

N130thStreet, W/OAshworthAvenueN30 EB 38.8 WB

37.79.7%

DelridgeWaySW, N/OSWMyrtleStreet 35 NB 37.9 SB 35.8 0.6%

8th

Avenue

S,

S/O

S

Director

Street

30

NB

36.4

SB

37.8

11.8%

8thAvenueSW, N/OSWRoxburyStreet 35 NB 36.3 SB 36.3 0.7%

NE50thStreet, W/O1stAvenueNE 30 EB 35.1 WB 37.4 5.7%

SeaviewAvenueNW, N/ONW63rdStreet 30 NB 34.7 SB 35 2.0%

NickersonStreet, W/OWarrenAvenueN 30 EB 34.6 WB 36.6 4.0%

SOthelloStreet, E/O43rdAvenueS 30 EB 33.5 WB 32.8 0.9%

FremontAvenueN, S/ON42ndStreet 35 NB 32.7 SB 35.0 0.5%

SWRoxbury

Street,

E/O

26th

Avenue

SW

30

EB

32.4

WB

32.8

7.2%

NW65thStreet, W/O12thAvenueNW 30 EB 31.9 WB 31.9 0.5%

SLucileStreet, W/OAirportWayS 30 EB 30.6 WB 30.1 0.3%

MadisonStreet, SW/OLakeWashingtonBlvd 30 NEB 28.5 SWB 29.3 0.3%

RooseveltWayNE, N/ONE52ndStreet 30 SB 32.7 2.1%

*Thepercentofdriversgoing10percentormoreabovethespeedlimit. Thehighestpercentdirectionisshown.


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31


SectionThreeTrafficCollisions

Traffic

Collisions

Whilemostcollisionsresultfromroadusererrororinattention,collisiondatacanbeusedtohelp

gaugetheeffectivenessofengineeringandenforcementeffortsandcanhelpengineersidentify

locationsthatmaybenefitfromadditionalengineeringtreatmentsorenhancedenforcement

efforts. Onlycollisionsforwhichthepolicereceiveorcreateareportareincludedinthedataused

forthisreport.

Therewere

11,913

reported

collisions

on

Seattle

streets

in

2010,

down

nearly

11

percent

from

2009.

Thetablesinthissectionprovideanoverviewofthesecollisions.Greaterdetailonspecifictypesof

collisionssuchasthoseinvolvingpedestriansorbicyclescanbefoundintheappendices.

In2010,asin2009,themostcommontypeofcollisionwaswithaparkedcar,followedbyright

anglecollisionsandrearend

collisions.

Lawenforcementofficers

areresponsiblefor

determining,wherepossible,

thecauseofacollision.The

tableon32shows

contributingcircumstances;

thethreemostcommonly

identifiedcontributing

circumstancesarenot

grantingtherightofwaytoa

vehicle,inattentionand

followingtooclosely.

Therewere11,913reported

collisionson

Seattle

streets

in2010,downnearly11

percent.

2010TotalCollisionsbyCollisionType

CollisionType TotalCollisions PercentofAllCollisions

ParkedCar 2,462 21%

RightAngle 1,940 16%

RearEnd 1,782 15%

TurningVehicle 986 8%

Sideswipe 966 8%

HitObject 814 7%

Other 584 5%

Pedestrian 529 4%

Bicycle 366 3%

HeadOn 46 0%

Unknown 1,438 13%

GrandTotal 11,913 100%


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Pleasenotethatthenumberofcontributingcircumstancesishigherthanthenumberofcollisionsbecausemorethanonedrivermaybe

involvedineachcollision.

ContributingCircumstance Number

Nonenoted 6,609

DidNot

Grant

Right

of

Way

to

Vehicle

2,073

Inattention 865

FollowingtoClosely 821

ImproperTurn 473

ImproperBacking 448

DisregardStoplight 426

DidNotGrantRightofWaytoPedestrian 421

Underthe

Influence

of

Alcohol

408

ExceedingReasonableandSafeSpeed 392

DisregardStopSign 193

OvertheCenterLine 193

OperatingDefectiveEquipment 109

DistractionsOutsideVehicle 105

ImproperUTurn 104

Exceeding

Speed

Limit

87ImproperPassing 81

DisregardYieldSign 61

ObjectsInsideVehicle 60

ApparentlyIll 46

ApparentlyAsleep 45

ContributingCircumstance,continued Number

DistractionsInsideVehicle 35

OperatingHandheld

Cell

Phone

26

ImproperParkingLocation 26

UndertheinfluenceofDrugs 22

ApparentlyFatigued 13

AdjustingAudioorEntertainmentSystem 12

EatingorDrinking 12

FailingtoSignal 10

Smoking

8OperatingOtherElectronicDevices 8

HadTakenMedication 6

HeadlightViolation 5

DisregardFlagger/Officer 5

ImproperSignal 3

OperatingHandsFreeCellphone 2

ReadingorWriting 2

Grooming 1

Other 3,079

Unknown 2,940

Total 20,235


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In2010,therewere19trafficfatalitiesonSeattlestreets,approximately26percentofwhichwerepedestrian

fatalities.This

2010

Collision

Fatalities

list

shows

the

location

and

date

of

the

collisions

that

resulted

in

afatality,

as

wellascharacteristicsofthedeceased.

No. Location Date Type Ag Sex

1 AuroraAveN&NPhinneyWay 01/28/10 Pedestrian 47 M

2

16th

Ave

SW

between

SW

Orchard

St

and

SW

Othello

St

03/09/10

Ran

off

Road

44

M

3 RainierAveSbetweenSLucileStandSFindlaySt 03/13/10 Headon 25 M

4 SWAdmiralWaybetween36thAveSWand37thEAveSW 03/21/10 Headon 29 M

5 NW54thStbetweenNWMarketStand30thWR*AveNW 04/04/10 RanoffRoad 20 M



8 OlsonPlSWbetween3rdAveSWandSWCambridgePl 04/21/10 Headon 66 M

9

16thAve

and

EJefferson

St

05/03/10

Pedestrian

51

F

10 HarvardAveNbetweenEThomasStandEHarrisonSt 05/03/10 Pedestrian 91 F

11 24thAveNEbetweenLakeCityWayNEandNENorthgate 05/30/10 RanoffRoad 27 M

12 AuroraAveNbetweenGarfieldStandHoweSt 05/31/10 RanoffRoad 23 M

13 12thAveandEAlderSt 07/28/10 Bicycle 36 M

14 AirportWaySbetweenSOthelloStandMilitaryRdS 08/17/10 LeftTurn 51 M

15 WestlakeAveNbetweenHalladayStandNewellSt 09/03/10 RanoffRoad 30 M

16

1stAve

SOff

Ramp

between

Alaskan

WY

Viaduct

SB

and

1st

09/10/10

Ran

off

Road

53

M

17 15thAveNWbetweenNW73rdStandNW75thSt 10/21/10 RearEnd 37 M

18 7thAveandCherrySt 11/17/10 Pedestrian 80 F

19 2ndAveandBellSt 12/27/10 Pedestrian 48 F

*WestRoadway


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In2010,therewerefivepedestriancollisionsinSeattleresultingina

fatality.This

is

the

lowest

number

of

pedestrian

fatalities

in

acalendar

yearsince2002.

PedestrianInvolvedCollisions

Year TotalCollisions Injury

Collisions

Fatal

Collisions

2001 474 430 10

2002

476

465

5

2003 454 446 11

2004 457 368 10

2005 473 452 8

2006 565 542 10

2007 490 480 6

2008 503 448 9

2009 479 429 11

2010

529

454

5

10yearAverage 485 451 8.5


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Therewasonlyonereportedfatalcollisioninvolvingabicyclistin2010.

BicycleInvolvedCollisions

Year Total

Collisions

Injury

Collisions

Fatal

Collisions

2001 302 238 2

2002 293 267 1

2003

263

229

0

2004 257 211 1

2005 279 245 0

2006 354 305 2

2007 359 310 1

2008 355 310 2

2009 382 325 4

2010 366 301 1

10

year

average

321

274

1.4


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SectionFourTrafficCollisionRates

Collisionratesarecommonlyusedtocomparethefrequencyofcollisionsatdifferentlocationsby

normalizingthe

total

number

of

collisions

against

the

traffic

volume

at

an

intersection

or

mid

blocklocation. Collisionratescanbeusefulinexpressingtrendsovertime. SDOTisbeginningto

usecollisionratesasonemethodtoevaluateengineeringimprovements,documenttraffictrends

andprioritizetransportationprojects.

Collisionratescanbecalculatedinseveraldifferentways. ThecityofSeattleisusingthefollowing

formulae:

IntersectionCollisionRateFormula thenumberofcollisionspermillionvehiclesenteringperyear.

N*1,000,000/24hrenteringvolume*365days

RoadSegmentCollisionRateFormula thenumberofcollisionspermillionvehiclemilesoftravelperyearperroadsegment.

N*1,000,000/lengthofsegmentinmiles*AADT

Spotcomparisonsofcollisionratescanbemadeformeasuringtheeffectivenessofengineering

andenforcement.

VehicleCollisionRateTrends

UsingSDOTsannualarterialtrafficcountprogramdata,wehavederivedtheAverageDailyTraffic

(ADT)for

Seattle.

Seattlesnumberofmotor

vehiclecollisionsandthe

citywidecollisionrateareboth

falling.


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CitywideCollisionRate

Wehaveseenadownwardtrendinthecitywidecollisionrate. Care

shouldbeexercisedininterpretingthisrate. TheADTusedisacitywide

approximationofarterialtrafficvolumesandinthiscaseithasbeen

adjustedtoexcludevolumesonI5,I90andSR520becauseour

collisiondatadonotincludecollisionsonthesehighways. Collisions

occuronbotharterialandnonarterialstreets. Thoughthe

methodology

is

imperfect,

it

is

nevertheless

illustrative.

0.00

10.00

20.00

30.00

40.00

50.00

60.0070.00

80.00

90.00

100.00

20002001

2002

2003

2004

2005

2006

2007

2008

2009

2010

Collisionsper1M

VehicleMiles

Traveled

CitywideCollisionRate

Year Collisions Average

Daily

Traffic

AADT Citywide

Collision

Rate

2000 17,846 545,548 199,125,020 89.62

2001 17,547 543,006 198,197,041 88.53

2002 16,497 540,351 197,228,115 83.64

2003 16,057 540,028 197,110,220 81.46

2004 15,527 540,423 197,254,395 78.72

2005

16,148

543,675

198,441,375 81.37

2006 15,967 557,068 203,329,820 78.53

2007 15,134 523,616 191,119,840 79.19

2008 14,173 531,508 194,000,420 73.06

2009 13,344 525,925 191,962,687 69.51

2010 11,913 541,320 197,581,800 60.29


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Pedestrian andBicycleinvolvedCollisionRates

Calculatingcollisionratesforpedestrian andbicyclistinvolved

collisionsiscomplex,primarilybecauseofthedifficultyandexpenseof

collectingthenecessarydata,andalackofagreementintheindustry

onfactorsthatshouldbeconsidered.1 However,SDOTusessimple

formulaeforcalculatingacitywideratethatmaybeusefulin

identifyingcitywidetrends:

Citywideannualpedestriancollisionspercapita:N/SeattlePopulation

Citywideannualbicyclecollisionspercapita:N/SeattlePopulation

1MetropolitanTransportationCommission,SanFrancisco,CAhttp://www.mtc.ca.gov/planning/bicyclespedestrians/safety/analysis.htm

540,000

550,000

560,000570,000

580,000

590,000

600,000

610,000

620,000

2002 2004 2006 2008 2010

P

opulation

SeattlePopulation


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PedestrianCollisionRate

The2009PedestrianMasterPlandefinedadecreasingtrendintherate

ofcollisionsinvolvingpedestriansasasafetygoal. Since2002,Seattles

populationhasgrownaboutsevenpercent. Duringthesametime,

Seattlehasseenaslightincreaseintheabsolutenumberofpedestrian

involvedcollisions.

WhenwenormalizepedestrianinvolvedcollisionsagainstSeattles

population,there

is

amuch

flatter

trend

for

pedestrian

involved

collisionspercapita. SDOTanticipatesthatwithnewplanningand

fundingdevotedtopedestrianimprovements,therateofpedestrian

involvedcollisionspercapitashoulddecrease.

0.00000

0.00020

0.00040

0.00060

0.00080

0.00100

0.00120

2002 2003 2004 2005 2006 2007 2008 2009 2010

NumberofPedCollisionsPerCapita


perCapita

0

100

200

300

400

500

600

2002 2003 2004 2005 2006 2007 2008 2009 2010Numberof

PedCollisionsPerCapita


Pedestrianinvolved

Collisions

Per

Capita

Year PedestrianInvolved

Collisions

Seattle

Population

Pedestriancollisions

percapita

2002 476 570,859 0.00083

2003 454 570,437 0.00080

2004 457 570,375 0.00080

2005 473 573,296 0.00083

2006

565

580,485

0.00097

2007 490 589,304 0.00083

2008 503 598,541 0.00084

2009 479 602,000 0.00080

2010 529 608,660 0.00087


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BicycleCollisionRate

The2007BicycleMasterPlansetsanambitiousgoalofdecreasing

therateofbicycleinvolvedcollisionsbyathirdoverthe10yearlife

oftheplan. SDOTscollisiondatashowadecreaseinthenumber

andrateofbicycleinvolvedcollisionsfrom2009to2010,butthe

sheernumberofcollisionsishigherthanitwasbeforetheadoption

oftheBicycleMasterPlanin2007.

Populationis

not

the

best

way

to

normalize

bicycle

collisions

becausearelativelysmallpercentageofthepopulationridebicycles

withregularitywedothisprimarilytoprovideavisualcomparison

withpedestriancollisions. 0

50

100

150

200

250

300

350

400

450

2002 2003 2004 2005 2006 2007 2008 2009 2010

BicycleInvolvedCollisions

0.0000

0.0001

0.0002

0.00030.0004

0.0005

0.0006

0.0007

2002 2003 2004 2005 2006 2007 2008 2009 2010

CollisionsperCapita

BicycleInvolved

Collisions

per

Capita

BicycleinvolvedCollisionsPerCapita

Year BicycleInvolved

Collisions

Seattle

Population

BicycleInvolved

CollisionsPerCapita

2002 293 570,859 0.0005

2003 263 570,437 0.0005

2004 257 570,375 0.0005

2005 279 573,296 0.0005

2006 354 580,485 0.0006

2007 359 589,304 0.0006

2008 355 598,541 0.0006

2009 382 602,000 0.0006

2010 366 608,660 0.0006


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51


SectionFiveTrafficEnforcement

TrafficEnforcement

Acritical

component

of

traffic

safety

is

enforcement.

SDOT

partners

with

the

Seattle

Police

Department(SPD),sharinginformationthathelpsfocusenforcementeffortsintherightplaces.

Enforcementcancurbundesirablebehaviorsuchasspeeding,aggressivedriving,jaywalkingand

failuretoyieldtherightofway.

SDOTregularlyreceivessuggestionsaboutstreetlocationswhereadditionaltrafficenforcement

mighthelpcurbundesirabletrafficbehavior. Inaddition,asaresultofourengineerswork,SDOT

identifieslocations

where

police

enforcement

might

yield

abetter

roadway

environment.

SDOT

forwardsenforcementrequeststotheSPDTrafficSectionmonthly,andtheSPDTrafficSectiontakes

theserequestsintoconsiderationastheyallocatetheirofficerstimeandefforts. SPDregularly,

thoughinformally,reportsbacktoSDOTabouttheresultsofenforcementatrequestedlocations.

SDOTpartnerswiththeSeattle

PoliceDepartment(SPD)tofocus

enforcementintherightplaces.


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52



PedestrianSafetyEmphasisPatrols

SPDhas

aprogram

of

pedestrian

safety

emphasis

patrols,

where

an

officerdressedinplainclothesactsasapedestriancrossingthe

streetatalegalcrossingtoenforcedrivercompliancewithlawsthat

requiredriversyieldtherightofwaytopedestrianswhoarelegally

crossingthestreet. In2010,SPDcompletedoperationsattwo

locations. Fortyeightviolationswerewritten.

TrafficCitations

Becauseofthewaypoliceofficercalldataisrecorded,SDOTisusing

twodatasetsforanalysis. ThefirstisthedataextractedfromSPDs

computeraideddispatchsystem(CAD). Thissystemrecordsofficers

calls. SDOTisalsousingtheinfractionstatisticsfromSPDsTraffic

Section. Onpage53isalistingofthenumberofcitationsissuedby

membersofSPDscadreoftrafficpolice.

CADgenerateddatadoesnotreflectahighdegreeofspecificitywithin

certaintypesofincidents. Forexample,amovingviolationcallmayor

maynothaveresultedinacitation. Itmightbeaspeedingticket,afailure

toyieldticketoranyothertypeofmovingviolation. SPDsTrafficSections

statisticscontain

this

level

of

detail,

but

their

statistics

do

not

reflect

traffic

infractionsissuedbySPDsnontrafficpatrolofficersandarentalways

recordedintheCADsystem. Theseareverydifferentsetsofdata,which

cannotbecombined.

0

20,000

40,000

60,000

80,000

100,000

120,000

2007 2008 2009 2010

SPDTrafficrelatedCalls

20072010SeattlePoliceDepartmentTrafficrelatedCalls

TypeofIncident 2007 2008 2009 2010

BlockingTraffic 2,890 2,774 2,204 2,444

AccidentInvestigation 21,111 20,386 17,884 18,061

AssistMotorist

2,173

2,027 1,754 1,663

DUI 1,703 1,637 1,812 2,060

MovingViolation 36,971 32,838 33,861 37,131

PedestrianViolation 2,649 1,981 1,824 2,676

ParkingViolation(excluding

abandonedvehicles)

29,361 26,592 21,630 20,845

TrafficControl(special

events)

56 62 44 36

Refuseto

Stop

(pursuit)

53

45 39 44

UnknownTrafficrelated

Incident

n/a n/a 1,507 248

GRANDTOTAL 96,967 88,342 82,559 85,208

Source:SeattlePoliceDepartmentComputerAidedDispatch(CAD)CallData


27/68

53



Itisperhapsnotsurprisingthatthenumberonecitationissuedby

TrafficSection

officers

is

for

speeding.

Speeding

is

atop

complaint

of

residentsandareasonoftencitedastowhypeopleare

uncomfortablecrossingthestreet. Itisalsocitedasafactorthat

affectsgeneralneighborhoodlivability.

CitationsforLeadingContributingFactorsinCollisions

Whenacollisionoccurs,oneorallofthedriversinvolvedmaybecited

foratrafficinfraction,andthecontributingfactorsnotedonthe

collisionreport. Basedoncollisionreports,themostcommon

contributingfactortocollisionsisdriversnotproperlyyieldingthe

rightofway.

AutomatedTrafficEnforcement

Thecity

of

Seattle

uses

two

kinds

of

automated

photo

enforcement:

traffic

safety

cameras

located

at

signalized

intersections;

and

amobile

speed

van,usedinschoolzonesandonarterialstreetswithdocumentedspeedingissues.

TrafficSafetyCameras

SeattlePoliceDepartmentcurrentlyhas30trafficsafetycamerasalsoknownasredlightcamerasat21differentarterialintersections

throughoutthecity.Basedonevaluationofthefirstsixcamerasdeployedin2006,thecamerasreducedredlightrunningbymorethan40percent.

These

same

camera

locations

showed

an

18

percent

drop

in

red

light

related

collisions

(right

angle

crashes),

comparing

three

years

before

cameras

(55collisions)withthreeyearsafter(45collisions). ThesefindingsarepreliminaryandshouldbeusedcautiouslyasSDOTdatashowthatcollision

ratesaredowncitywideoverthelastdecade. In2010,thetrafficsafetycamerasresultedinSPDissuing45,802citations,asdetailedinthetableon

page54.

20092010SeattlePoliceDepartment TrafficSectionCitations

Type

of

Infraction

2009 2010Pedestrianinfraction 1,274 1,570

Warnings 3,557 5,071

SchoolZonerelated 3,727 1,468

MovingViolations 29,347 27,384

RightofWaytoPedestrians 406 197

RightofWaytoVehicles 140 165

Signal/StopSign 2,226 2,172

Speeding

20,868 19,323AggressiveDriving 1,740 1,884

Turns 2,816 2,047

NegligentDriving 160 157

RecklessDriving 26 25

InattentiontoDriving 186 335

HOVlanes 779 1,079

Source:SPDTrafficSectionCitationData


28/68

54



2010TrafficSafetyCameraLocations CrossStreets 2010citations

NorthSeattle 45th

Street RooseveltWay 1,968

NW

Market

Street 15th

Avenue

NW 3,068

NWMarketStreet 15th

AvenueNW 1,177

15th

AvenueNW NW80thStreet 2,973

StoneWayN NW40thStreet 2,679

AuroraAvenueN NW85thStreet 1,973

NE80thStreet 5thAvenueNE 555

NE45thStreet UnionBayPlace 1,699

NE45thStreet UnionBayPlace 1,624

NE

45th

Street Union

Bay

Place 241

CentralSeattle 6thAvenue JamesStreet 3,359

5thAvenue SpringStreet 2,075

DennyWay FairviewAvenue 1,914

DennyWay FairviewAvenue 1,191

Broadway EOliveWay 1,125

OliveWay Broadway 820

Broadway PineStreet 1,415

BorenAvenue JamesStreet 763

23rdAvenueE EJohnStreet 1,667

9thAvenue JamesStreet 568

SouthSeattle RainierAvenue SOrcasStreet 625

RainierAvenue SOrcasStreet 1,230

14thAvenueS SCloverdaleStreet 393

SCloverdaleStreet 14thAvenueS 1,752

SW

Avalon

Way 35

th

Avenue

SW 1,033

35th

AvenueSW SWThistleStreet 1,999

RainierAveS SMassachusetts 3,851

SMcClellanStreet MartinLutherKingJrWayS 486

MartinLutherKingJr.WayS SMcClellanStreet 1,262

MartinLutherKingJr.WayS SMcClellanStreet 317

Note:Eachintersectionmayhavemultipleapproachesandcameras.


29/68

55



SpeedVanPhotoEnforcement

TheSeattlePoliceDepartmentalsodeploysamobilevanequippedwithatrafficsafetycameraandacrosstheroadradartodocumentandissue

citationsforschoolzoneandarterialstreetspeedviolations.Theprimarypurposeofthespeedvanistoenhancepedestriansafetybyslowing

vehiclespeedsandcitingspeedzoneviolators.

BeginninginApril2010,SPDinitiatedphotospeedenforcementonarterialstreetsinapilotprojectauthorizedduringthe2009statelegislative

session. Usingthesamephotoradarvanemployedinschoolzones,theSPDTrafficSectiondeploysthevantoselectedarteriallocationsfourdays

perweek,inanefforttogaugeeffectsonspeeding. In2010,thespeedvanphotoenforcementresultedinSeattlePoliceDepartmentissuing1,808

citations,asshowninthetablebelow.

Thespeedvanhasbeeneffectivewhenandwheredeployed. Anevaluationofresultsfromthepilotdeploymentofthevanduringthe20082009

schoolyearshowedadecreaseofbetween5milesperhourand10milesperhourinschoolzoneswithchildrenpresentacriticalreductionfor

pedestriansafety.

2010SpeedVanLocations CrossStreets 2010Citations

BryantElementary

School

NE

60th

Street

35th

Avenue

NE

260

BagleyElementarySchool N80thStreet StoneAvenueN 20

WestWoodlandElementarySchool NW58thStreet 3rdAveNW 58

GatewoodElementarySchool SWMyrtleStreet FauntleroyWaySW 297

Arterial 35thAvenueSW SWDawsonStreet 593

Arterial ElliottAvenueW 6thAvenueW 580

2010 S l T ffi R


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6-1

2010 Seattle Traffic Report

Section Six Data Use Case Study

DataUseCaseStudy:FauntleroyWaySW

ThankstofundingmadeavailablebytheBridgingtheGaplevy,SDOTrepavedFauntleroyWaySWin2009.

TherepavingprojectprovidedanopportunitytoreconfiguretheroadwayusingtheCompleteStreets

approach,accommodatingfreight,transit,pedestrians,bicyclesandmotorvehicles. Thisincludedre

stripingfromfourtravellanestoonelaneineachdirectionwithaleftturnlane,abicyclelaneuphill,anda

newmarkedcrosswalkandcurbbulb.

Thechanges

to

Fauntleroy

Way

SW

have

improved

conditions

for

all

users

of

the

roadway.

The

number

of

speedersisdown. Anewmarkedcrosswalkhasbeenprovidedinalocationwhereitwasdifficulttocross.

Motorvehicletrafficvolumehasnotdeclined. Whilethereissomeadditionaldelayformotorvehicle

drivers,theCompleteStreetsapproachhasresultedinsomesignificantbenefitsfordriversincludinga

reductioninthe

numberofcollisions,

especiallythenumber

ofinjury

collisions.

ProjectOutcomes

Highendspeedersdeclined

Injurycollisionsdeclined

Trafficvolumeandtravel

timeincreasedslightly



31/68

6-2



Collisions

Collisionsdeclinedaftertherechannelizationwascompleted. Thetotalnumberofcollisionsdeclined31percentwhilethenumberofcollisions

involvinginjurydeclined73percent. Leftturn,cyclistandsideswipecollisionsalldeclinedtozero. Collisionsinvolvingparkedcarsdeclined50

percent. Theonlyincreasenotedwasthenumberofincidentsinvolvingrearendcollisions.

Speed

Aftertheprojectwascompleted,speedingdeclined. Driverstravelingat40mphorfasterdeclined7percentnorthboundand17percent

southbound.Reducing

the

number

of

top

end

speeders

can

have

asignificant

benefit

for

pedestrians.

According

to

a1987

report

by

the

U.K

DepartmentTransportation,apedestrianstruckbyamotorvehicletraveling40milesperhourhasa15percentchanceofsurvivingtheevent.

Reducingvehiclespeedto30mphincreasesthechanceofsurvivalto55percent.

Collisions

Total Injury RightAngle Rearend SideSwipe Cyclist LeftTurn ParkedCar

Before

20.3

7.3

3.7

3

2

.3

2

6.7

After 14 2 5 6 0 0 0 3

Change 31% 73% 36% 100% 100% 100% 100% 55%

Collisiondatainthebeforeperiodisaverage20052008andaverageDecember2009December2010

Speed

FauntleroyWaySWEatSWBrandonStreet

85th

PercentileSpeed PercentSpeeding TopendSpeeders

Before Northbound 38.8 90% 13%

Southbound 39.6 90% 18%

After Northbound 38.6 90% 12%

Southbound 39.0 76% 15%

CombinedChange 1% 7% 13%

BeforedatacollectedinOctober,2008. AfterdatacollectedinFebruary2011



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6-3



Volume

Trafficvolumeincreasedslightlyaftertherechannelizationwascompleted. Averageweekdaytrafficincreased0.4percentnorthboundand0.3

percentsouthbound. Totalaverageweekdaytrafficvolumeremainedroughly17,500vehicles.

TravelTime

Traveltimealongthecorridorincreasedslightlyformotorvehicles. Thisincreasevariedbydirectionandtimeofday. Inthesouthbounddirection,

theincreaseintraveltimewasfoursecondsinthemorningand76secondsintheafternoon. Northboundtheincreaseintraveltimewas45seconds

inthemorningandfivesecondsintheafternoon.

Volume

FauntleroyWaySWatSWEdmundsStreet

AverageDailyTraffic WeekdayTraffic PeakMorning PeakAfternoon

Before

Northbound

8,250

8,802

1,021

497

Southbound 8,216 8,797 378 977

After Northbound 8,268 8,837 998 537

Southbound 8,240 8,828 423 940

Change 0.2% 0.3% 1.5% 0.1%

BeforedatacollectedinMay,2008. AfterdatacollectedinMay,2011

Morning

Peak

Travel

Time

AlaskatoCalifornia 2009 2011

Northbound 2min,52sec 3min,37sec

Southbound 2min,51sec 2min,55sec

Afternoon

Peak

Travel

Time

AlaskatoCalifornia 2009 2011

Northbound 2min,34sec 3min,39sec

Southbound 2min,46sec 3min,40sec


33/68

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34/68

71

0 0 Seatt e a c epo t

Section Seven Future Data Collection

FutureDataCollectionSDOTsabilitytocollectdatainawaythathelpsestablishandillustratetraffictrendscontinuesto

grow. Wehavealwayscollectedcollisiondataanduseitregularlytoprioritizesafetyimprovements

andtoassesswhereoursafetyimprovementsmightbehelpful. Volumedataiscollectedatregular

locationsannually,andinsomecasesmonthly,andpaintsapictureofwheretrafficisgrowingand

diminishing. In2010,SDOTbegancollectingspeeddatamuchaswecollectvolumedataatspecified

locationseachyear.

BicycleParticipationHistorically,Seattlehasusedspotcountstomeasurethenumberofcyclists. Spotcountsarelimitedin

thattheycollectinformationonlyatcertainlocations. Whilethisdataisvaluable,theresultscannot

beextrapolatedandappliedto

thewholecity.

In2011,SDOThasconducteda

surveytodeterminebicycle

participation. Thesurveyhas

polledastatisticallyvalid

sampleofSeattleresidentsto

determinehowmanypeople

ride

their

bicycles,

how

often

andforwhatpurpose. The

percentagesdrawnfromthis

surveywillbeappliedto

Seattlespopulationtogivea

truerpictureofhowmany

Followingaconsistent,statisticallyvalidmethodologywillimprovethequalityandconsistencyofourdata.



35/68

72

p

Section Seven Future Data Collection

peopleridetheirbikesinSeattlewhetherforcommuting,errands,orrecreation. Thesenumberswillbereportedinthe2011TrafficReportand

will

be

used

to

calculate

bicycle

involved

collision

rates

and

may

be

used

for

campaigns

to

encourage

more

people

to

bicycle.

BicycleandPedestrianCountsInthisreport,SDOTusesanumberofmethodstocountaggregatenumbersofpedestriansandbicyclists:thepopulationofSeattle,theAmerican

CommunitySurveycommuterestimatesandtheDowntownSeattleAssociationpedestriancountnumbers. Startingin2011,SDOTisconducting

pedestrianandbicyclevolumecountsat50locationsacrossSeattleinJanuary,May,JulyandSeptemberaspartoftheNationalBicycle&Pedestrian

DocumentationProject1.Thelocationswereselectedtopreservemanyexistingbicyclecountlocations,whiletakingPedestrianMasterPlanhigh

prioritylocationsintoconsideration.

Followingaconsistent,nationallyrecognizedmethodologywillimprovethequalityandconsistencyofourdata,andalsoincreasethefrequencywith

whichwecollectthistypeofdata. Theinformationwecollectwilldocumentcurrentlevelsofwalkingandbiking,helpusmeasureourprogress

towardsincreasingthenumberofpeoplewhowalkandbike,andhelpmakethecaseforadditionalinvestments.

1http://bikepeddocumentation.org/



36/68

8

1

Section Eight Appendices

2010VolumeCountLocations

Appendices

VolumeCount

Locations

81

PedestrianCollisionTables 813

BicycleCollisionTables 8 24

GlossaryofTerms 827

ControlCount

Locations

1. DENNYWAY,W/O2NDAVE

2. EMADISONST,SW/O17THAVE

3. EASTGREENLAKEWAYN,NE/ON57THST

4. FREMONTBR,S/OPOINTA

5. N85THST,W/OASHWORTHAVEN

6. QUEENANNEAVEN,S/OCROCKETTST

7. UNIVERSITYBR,

SW/O

POINT

A

8. LAKECITYWAYNE,NE/ONE95THST

9. MLKINGJR.WAYS,N/OSANDOVERST

10.NWMARKETST,W/O8THAVENW

11.RAINIERAVES,S/OSOTHELLOST

12.SLANDERST,W/O6THAVES

13.ALKIAVESW,W/OHARBORAVESW

14.3rdAve

SE/O

Union

St

15.ALASKANWAYSE/OBLANCHARD

16.STEWARTSt,NE/O4thAVE

17.UNIVERSITYST,SW/O4thAVE

18.EASTMARGINALWAYS,S/OSALASKAST

19.WESTSEATTLEBRIDGE,NE/OFAUNTLEROY

20.SWSPOKANEBRIDGE,W/OSWSPOKANEST


S ti Ei ht A di


37/68

8

2


ScreenLineCountLocations

ALASKANWYVINB,S/O1STAVSONRP N85THST,W/OLINDENAVEN

ALASKANWYVISB,S/O1STAVSOFFRP VALLEYST,W/OFAIRVIEWAVEN

ALASKANWYVINB,N/OEASTMARGINALWAYS 12THAVENE,S/ONE75THST

ALASKANWYVISB,N/OEASTMARGINALWAYS 15THAVENE,S/ONE145THST

EASTMARGINALWAYS,N/OALASKANWYVINB 15THAVENE,S/ONE65THST

EASTMARGINALWYS,N/OALASKANWYVISB 15THAVENE,S/ONE75THST

MARIONST,W/OALASKANWAY 1STAVENE,S/ONE145THST

YESLERWAY,W/OALASKANWAY 25THAVENE,S/ONE47THST

YESLERWAY,W/OALASKANWAY 25THAVENE,S/ONE75THST

1STAVSBRNB,S/OPOINTA 30THAVENE,S/ONE145THST

1STAVSBRSB,S/OPOINTA 35THAVENE,S/ONE75THST

ALASKANWYVINB,NW/O1STAVSONRP 5THAVENE,S/OI5145OF

ALASKANWYVISB,NW/O1STAVSOFFRP LAKECITYWAYNE,S/ONE145THST

BATTERYSTTUNNELNB,N/OALASKANWYVINB MONTLAKEBR,S/OPOINTA

BATTERYSTTUNNELSB,S/OAURORAAVEN NE145THST,E/O5THAVENE

BEACONERAVES,S/OSSPOKANEST NE45THST,W/ONE45THPL

BEACONWRAVES,S/OSSPOKANEST NE45THST,W/OROOSEVELTWAYNE

SR509NB,S/OCLOVERDALESTOFFRP NE50THST,W/OROOSEVELTWAYNE

SR509SB,S/OCLOVERDALESTONRP NE55THST,E/O35THAVENE

WESTSEATTLEBREB,E/O1STAVSOFFRP NE75THST,W/OROOSEVELTWAYNE

WESTSEATTLEBRWB,W/O4THAVSOFFRP NE80THST,E/O5THAVENE

WESTSEATTLEBREB,E/ODELRIDGEWSEATTLEBREBONRP NENORTHGATEWAY,E/O5THAVENE

WESTSEATTLEBRWB,E/OWSEATTLEBRWBOFFRP NEPACIFICST,NE/O2NDAVENE

WESTSEATTLEBREB,NE/OFAUNTLEROYWAYSW ROOSEVELTWAYNE,N/ONE50THST

WESTSEATTLEBRWB,NE/O35THAVESW ROOSEVELTWAYNE,N/ONE73RDST

ELLIOTTAVE,W/OLENORAST ROOSEVELTWAYNE,SE/ONE130THNST

WESTERNAVE,NW/OLENORAST SANDPOINTWAYNE,S/ONE74THST




38/68

8

3


ScreenLineCountLocations,continued

SCOLUMBIANEBWAY,NW/O14THAVES 15THAVENW,S/ONW80THST

SCOLUMBIANWBWAY,NW/O14THAVES 24THAVENW,S/ONW80THST

I5CHERRYREVRP,E/OCHERRYST 32NDAVENW,S/ONW80THST

I5COLUMBIAREVRP,E/OCOLUMBIAST 3RDAVENW,S/ONW145THST

1STAVE,NW/OLENORAST 3RDAVENW,S/ONW80THST

1STAVE,SE/OPIKEST 8THAVENW,S/ONW80THST

2NDAVE,NW/OLENORAST 12THAVES,S/OSWELLERST

2NDAVE,SE/OPIKEST 14THAVES,N/OSDIRECTORST

3RDAVE,NW/OLENORAST 15THAVES,S/OSBRADFORDST

3RDAVE,SE/OPIKEST 16THAVES,N/O16THAVESBR

4THAVE,NW/OLENORAST 1STAVSOFFRP,SE/OALASKANWYVISB

4THAVE,SE/OPIKEST 1STAVSONRP,SE/OALASKANWYVINB

5THAVE,NW/OLENORAST 1STAVES,N/OSKINGST

5THAVE,SE/OPIKEST 1STAVES,S/OSSPOKANESRST

6THAVE,NW/OLENORAST 23RDAVES,S/OSJACKSONST

6THAVE,SE/OPIKEST 31STAVES,S/OSJACKSONST

7THAVE,NW/OLENORAST 4THAVES,N/OSDAWSONST

7THAVE,SE/OPIKEST 4THAVES,S/O2NDAVETS

8THAVE,SE/OPIKEST 51STAVES,S/OSBANGORST

ALASKANWAY,SE/OBLANCHARDST 8THAVES,S/OSDIRECTORST

ALASKANWAY,SE/OPIKEST AIRPORTWAYS,N/OSNORFOLKST

COLUMBIASTONRP,NE/OALASKANWYVISB AIRPORTWAYS,NW/OSLUCILEST

DENNYWAY,

E/O

MINOR

AVE

ALASKAN

WAY

S,

N/O

SKING

ST

DENNYWAY,E/OWESTLAKEAVE EASTMARGINALWAYS,SE/OBOEINGDR

ELLIOTTAVONRP,NW/OALASKANWYVISB MLKINGJRWAYS,S/OSBRADFORDST

I5COLUMBIAOF,N/OCOLUMBIAST MLKINGJRWAYS,S/OSNORFOLKST

I5JAMESON,S/O6THAVE MYERSWAYS,S/OOLSONPLSW




39/68

8

4


ScreenLineCountLocations,continued

I5PIKEREVRP,N/OPIKEST RAINIERAVES,E/O75THAVES(CITYLIMITS)

I5SENECAOF,S/O6THAVE RAINIERAVES,SE/OBORENAVES

I5SPRINGON,S/O6THAVE RAINIERAVES,SE/OMLKINGJRWAYS

I5UNIONOFF,N/OCONVENTIONPL RENTONAVES,SE/OSBANGORST

I5UNIVERSITYON,N/O6THAVE SDEARBORNST,W/O13THAVES

SENECASTOFFRP,NE/OALASKANWYVINB SGRAHAMST,E/OSWIFTAVES

WESTERNAVOFFRP,NW/OALASKANWYVINB SHOLGATEBR,E/OSHOLGATEST

WESTERNAVE,NW/OUNIONST SJACKSONST,E/O5THAVES

EASTLAKEAVEE,SW/OHARVARDAVEE SLUCILEST,W/O12THAVES

AURORAAVEN,S/OHARRISONST SMYRTLEST,W/OBEACONWRAVES

AURORAAVEN,S/ON145THST SR99FY,S/OSCLOVERDALEST

AURORAAVEN,S/ON80THST SWIFTAVES,NW/OSALBROPL

AURORABR,S/OBRIDGEWAYN 16THAVESW,N/OSWCAMBRIDGEST

GREENWOODAVEN,S/ON145THST 35THAVESW,N/OSWROXBURYST

GREENWOODAVEN,S/ON80THST 8THAVESW,N/OSWROXBURYST

MERCERST,W/OFAIRVIEWAVEN BEACHDRSW,SE/O61STAVESW

MERIDIANAVEN,S/ON145THST CALIFORNIAAVESW,S/OSWCHARLESTOWNST

N105THST,W/OEVANSTONWAVEN DELRIDGEWAYSW,NW/OSWCAMBRIDGEST

N125THST,W/OAURORAAVEN DELRIDGEWAYSW,S/OSWANDOVERST

N130THST,W/OLINDENAVEN OLSONPLSW,SW/O1STAVES

N145THST,W/OLINDENAVEN SEAVIEWAVENW,N/ONW67THST

N46THST,W/OPHINNEYAVEN SW106THST,W/OSEOLABEACHDRSW

N50THST,W/OFREMONTAVEN SWADMIRALWAY,SE/OSWCITYVIEWST

N65TH

ST,

W/O

LINDEN

AVE

N

SW

AVALON

WAY,

N/O

30TH

AVE

SW

N80THST,W/OLINDENAVEN SWBARTONST,SW/OFAUNTLEROYWAYSW

MAGNOLIABR,E/OWGARFIELDSTOFFRP WESTMARGINALWAYSW,NW/OHIGHLANDPARKWAY

SW

WDRAVUSST,E/O20THAVEW 28THAVEW,S/OWDRAVUSST

WEMERSONPL,SE/O21STAVEW 34THAVEW,N/OWBARRETTST




40/68

8

5


FlowCountLocations

I5STEWARTOF,N/OSTEWARTST LAKECITYWAYNE,SW/ONE115THST

I5STEWARTREVRP,N/OSTEWARTST MONTLAKEBLVDNE,N/ONEPACIFICPL

I5STEWARTREVRP,N/OSTEWARTST NE125THST,E/O35THAVENE

ALASKANWYVINB,S/O1STAVSONRP NE125THST,W/O27THAVENE

ALASKANWYVISB,S/O1STAVSOFFRP NE45THST,E/O16THAVENE

ALASKANWYVINB,N/OEASTMARGINALWAYS NE50THST,W/OTHACKERAYPLNE

ALASKANWYVISB,N/OEASTMARGINALWAYS NE65THST,E/O25THAVENE

EASTMARGINALWAYS,N/OALASKANWYVINB NE65THST,W/O15THAVENE

EASTMARGINALWYS,N/OALASKANWYVISB NE65THST,W/O25THAVENE

MARIONST,W/OALASKANWAY NE75THST,E/O12THAVENE

YESLERWAY,W/OALASKANWAY NE75THST,W/O30THAVENE

YESLERWAY,W/OALASKANWAY NENORTHGATEWAY,W/O15THAVENE

1STAVSBRNB,S/OPOINTA PINEHURSTWAYNE,NE/ONE115THST

1STAVSBRSB,S/OPOINTA ROOSEVELTWAYNE,S/ONENORTHGATEWAY

ALASKANWYVINB,NW/O1STAVSONRP SANDPOINTWAYNE,SW/ONE65THST

ALASKANWYVISB,NW/O1STAVSOFFRP HOLMANRDNW,NE/O13THEAVENW

BATTERYSTTUNNELNB,N/OALASKANWYVINB LEARYWAYNW,NW/O3RDAVENW

BATTERYSTTUNNELSB,S/OAURORAAVEN NW80THST,W/O15THAVENW

BEACONERAVES,S/OSSPOKANEST NW85THST,W/O16THAVENW

BEACONWRAVES,S/OSSPOKANEST 1STAVES,N/OSSPOKANENRST

SR509NB,S/OCLOVERDALESTOFFRP 1STAVES,S/OSLUCILEST

SR509SB,S/OCLOVERDALESTONRP 4THAVES,N/OSMICHIGANST

WESTSEATTLEBREB,E/O1STAVSOFFRP 4THAVES,S/OAIRPORTWAYS

WESTSEATTLEBRWB,W/O4THAVSOFFRP 6THAVES,S/OSFORESTST

WESTSEATTLEBREB,E/ODELRIDGEWSEATTLEBREBON

RP

BEACONAVES,N/OSSPOKANEST

WESTSEATTLEBRWB,E/OWSEATTLEBRWBOFFRP CORSONAVES,N/OSMICHIGANST

FlowCountLocations,continued




41/68

8

6


WESTSEATTLEBREB,NE/OFAUNTLEROYWAYSW CORSONAVES,S/OSMICHIGANST

WESTSEATTLEBRWB,NE/O35THAVESW EASTMARGINALWAYS,NW/OSMICHIGANST

ELLIOTTAVE,W/OLENORAST EASTMARGINALWAYS,SE/O4THAVES

WESTERNAVE,NW/OLENORAST ELLISAVES,S/OSWARSAWST

SCOLUMBIANEBWAY,NW/O14THAVES MLKINGJRWAYS,N/OSEDMUNDSST

SCOLUMBIANWBWAY,NW/O14THAVES MLKINGJRWAYS,S/OSHOLLYST

I5CHERRYREVRP,E/OCHERRYST RAINIERAVES,N/OSALASKAST

I5COLUMBIAREVRP,E/OCOLUMBIAST RAINIERAVES,NW/OSHOLLYST

BORENAVE,SE/OPIKEST RAINIERAVES,NW/OSMCCLELLANST

BROADWAY,S/OEDENNYWAY RENTONAVES,N/OSCLOVERDALEST

DENNYWAY,E/OSTEWARTST RENTONAVES,SE/OSHENDERSONST

DENNYWAY,W/O6THAVE SCOLUMBIANWAY,W/OBEACONWRAVES

I5CHERRYON,N/OCHERRYST SGENESEEST,E/O38THAVES

I5JAMESOF,S/OJAMESST SHENDERSONST,E/ORENTONAVES

I5MADISONOF,S/OMADISONST SJACKSONST,W/O23RDAVES

I5OLIVEOF,S/OOLIVEWY SLUCILEST,E/O4THAVES

I5OLIVEON,N/OI5MELROSEON SMICHIGANST,E/O6THAVES

I5YALEON,S/OHOWELLST SOTHELLOST,E/O43RDAVES

JAMESST,NE/O7THAVE 35THAVESW,S/OSWALASKAST

MADISONST,NE/OBORENAVE 35THAVESW,S/OSWMORGANST

10THAVEE,S/OEBOSTONST CALIFORNIAAVESW,S/OERSKINEWAYSW

12THAVEE,N/OEJOHNST DELRIDGEWAYSW,N/OSWMYRTLEST

12THAVE,N/OEYESLERWAY FAUNTLEROYWAYSW,N/OSWBARTONST

14THAVE,

N/O

EYESLER

WAY

FAUNTLEROY

WAY

SW,

S/O

SW

ALASKA

ST

24THAVEE,N/OEPROSPECTST SWBARTONST,W/O30THAVESW

BORENAVE,NW/OEYESLERWAY SWHOLDENST,W/ODELRIDGEWAYSW

EALOHAST,E/O10THAVEE SWMORGANST,W/O35THAVESW


ECHERRYST,W/O26THAVE SWROXBURYST,E/O26THAVESW




42/68

8

7

g pp

EJOHNST,E/OBROADWAYE 15THAVEW,N/OWARMORYWAY

EMADISONST,SW/O38THAVEE 20THAVEW,S/OWDRAVUSST

EMADISONST,SW/OLAKEWASHINGTONBLVDE ELLIOTTAVEW,SE/OWMERCERPL

EPIKEST,W/OBROADWAY GILMANAVEW,NW/OWEMERSONPL

EPINEST,W/OBROADWAY 1STAVE,NW/OLENORAST

EUNIONST,W/O26THAVE 1STAVE,SE/OPIKEST

EYESLERWAY,W/O23RDAVE 2NDAVE,NW/OLENORAST

LAKEWASHINGTONBLVDE,NW/OEMADISONST 2NDAVE,SE/OPIKEST

MLKINGJRWAYE,S/OEJOHNST 3RDAVE,NW/OLENORAST

MLKINGJRWAY,N/OEYESLERWAY 3RDAVE,SE/OPIKEST

AURORAAVEN,S/ON112THST 4THAVE,NW/OLENORAST

FREMONTAVEN,S/ON46THST 4THAVE,SE/OPIKEST

GREENWOODAVEN,N/ON107THST 5THAVE,NW/OLENORAST

GREENWOODAVEN,S/OHOLMANRDN 5THAVE,SE/OPIKEST

N130THST,W/OASHWORTHAVEN 6THAVE,NW/OLENORAST

N145THST,W/OMERIDIANAVEN 6THAVE,SE/OPIKEST

N40TH

ST,

E/O

STONE

WAY

N

7TH

AVE,

NW/O

LENORA

ST

N45THST,W/OEASTERNAVEN 7THAVE,SE/OPIKEST

NNORTHGATEWAY,W/OASHWORTHAVEN 8THAVE,SE/OPIKEST

NICKERSONST,NW/OFLORENTIAST ALASKANWAY,SE/OBLANCHARDST

PHINNEYAVEN,S/ON65THST ALASKANWAY,SE/OPIKEST

STONEWAYN,S/ON45THST COLUMBIASTONRP,NE/OALASKANWYVISB

WESTLAKEAVEN,S/OHIGHLANDDR DENNYWAY,E/OMINORAVE

11THAVE

NE,

S/O

NE

45TH

ST

DENNY

WAY,

E/O

WESTLAKE

AVE

15THAVENE,S/ONE45THST DENNYWAY,W/O2NDAVE

15THAVENE,S/ONENORTHGATEWAY ELLIOTTAVONRP,NW/OALASKANWYVISB


35THAVENE,N/ONE75THST I5COLUMBIAOF,N/OCOLUMBIAST

5THAVENE,N/ONENORTHGATEWAY I5JAMESON,S/O6THAVE




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8

8

5THAVENE,S/ONENORTHGATEWAY I5PIKEREVRP,N/OPIKEST

EASTGREENLAKEDRN,NW/OLATONAAVENE I5SENECAOF,S/O6THAVE

35THAVENE,S/ONE75THST I5SPRINGON,S/O6THAVE

5THAVENE,S/OI5145OF I5UNIONOFF,N/OCONVENTIONPL

LAKECITYWAYNE,NE/ONE95THST I5UNIVERSITYON,N/O6THAVE

LAKECITYWAYNE,S/ONE145THST SENECASTOFFRP,NE/OALASKANWYVINB

MONTLAKEBR,S/OPOINTA WESTERNAVOFFRP,NW/OALASKANWYVINB

NE145THST,E/O5THAVENE WESTERNAVE,NW/OUNIONST

NE45THST,W/ONE45THPL EMADISONST,SW/O17THAVE

NE45THST,W/OROOSEVELTWAYNE EASTLAKEAVEE,SW/OHARVARDAVEE

NE50THST,W/OROOSEVELTWAYNE AURORAAVEN,S/OHARRISONST

NE55THST,E/O35THAVENE AURORAAVEN,S/ON145THST

NE75THST,W/OROOSEVELTWAYNE AURORAAVEN,S/ON80THST

NE80THST,E/O5THAVENE AURORABR,S/OBRIDGEWAYN

NENORTHGATEWAY,E/O5THAVENE EASTGREENLAKEWAYN,NE/ON57THST

NEPACIFICST,NE/O2NDAVENE FREMONTBR,S/OPOINTA

ROOSEVELTWAY

NE,

N/O

NE

50TH

ST

GREENWOOD

AVE

N,

S/O

N

145TH

ST

ROOSEVELTWAYNE,N/ONE73RDST GREENWOODAVEN,S/ON80THST

ROOSEVELTWAYNE,SE/ONE130THNST MERCERST,W/OFAIRVIEWAVEN

SANDPOINTWAYNE,S/ONE74THST MERIDIANAVEN,S/ON145THST

15THAVENW,S/ONW80THST N105THST,W/OEVANSTONWAVEN

24THAVENW,S/ONW80THST N125THST,W/OAURORAAVEN

32NDAVENW,S/ONW80THST N130THST,W/OLINDENAVEN

3RDAVE

NW,

S/O

NW

145TH

ST

N

145TH

ST,

W/O

LINDEN

AVE

N

3RDAVENW,S/ONW80THST N46THST,W/OPHINNEYAVEN


8THAVENW,S/ONW80THST N50THST,W/OFREMONTAVEN

BALLARDBR,S/OPOINTA N65THST,W/OLINDENAVEN

NWMARKETST,W/O8THAVENW N80THST,W/OLINDENAVEN




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9

12THAVES,S/OSWELLERST N85THST,W/OASHWORTHAVEN

14THAVES,N/OSDIRECTORST N85THST,W/OLINDENAVEN

15THAVES,S/OSBRADFORDST QUEENANNEAVEN,S/OCROCKETTST

16THAVES,N/O16THAVESBR UNIVERSITYBR,SW/OPOINTA

1STAVSOFFRP,SE/OALASKANWYVISB VALLEYST,W/OFAIRVIEWAVEN

1STAVSONRP,SE/OALASKANWYVINB 12THAVENE,S/ONE75THST

1STAVES,N/OSKINGST 15THAVENE,S/ONE145THST

1STAVES,S/OSSPOKANESRST 15THAVENE,S/ONE65THST

23RDAVES,S/OSJACKSONST 15THAVENE,S/ONE75THST

31STAVES,S/OSJACKSONST 1STAVENE,S/ONE145THST

4THAVES,N/OSDAWSONST 25THAVENE,S/ONE47THST

4THAVES,S/O2NDAVETS 25THAVENE,S/ONE75THST

51STAVES,S/OSBANGORST 30THAVENE,S/ONE145THST

8THAVES,S/OSDIRECTORST 16THAVESW,N/OSWCAMBRIDGEST

AIRPORTWAYS,N/OSNORFOLKST 35THAVESW,N/OSWROXBURYST

AIRPORTWAYS,NW/OSLUCILEST 8THAVESW,N/OSWROXBURYST

ALASKANWAY

S,

N/O

SKING

ST

ALKI

AVE

SW,

W/O

HARBOR

AVE

SW

EASTMARGINALWAYS,SE/OBOEINGDR BEACHDRSW,SE/O61STAVESW

MLKINGJRWAYS,S/OSBRADFORDST CALIFORNIAAVESW,S/OSWCHARLESTOWNST

MLKINGJRWAYS,S/OSNORFOLKST DELRIDGEWAYSW,NW/OSWCAMBRIDGEST

MYERSWAYS,S/OOLSONPLSW DELRIDGEWAYSW,S/OSWANDOVERST

RAINIERAVES,E/O75THAVES(CITYLIMITS) OLSONPLSW,SW/O1STAVES

RAINIERAVES,S/OSOTHELLOST SEAVIEWAVENW,N/ONW67THST

RAINIERAVE

S,

SE/O

BOREN

AVE

S

SW106TH

ST,

W/O

SEOLA

BEACH

DR

SW


RAINIERAVES,SE/OMLKINGJRWAYS SWADMIRALWAY,SE/OSWCITYVIEWST

RENTONAVES,SE/OSBANGORST SWAVALONWAY,N/O30THAVESW

SDEARBORNST,W/O13THAVES SWBARTONST,SW/OFAUNTLEROYWAYSW

SGRAHAMST,E/OSWIFTAVES WESTMARGINALWAYSW,NW/OHIGHLANDPARKWAYSW




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8

10

SHOLGATEBR,E/OSHOLGATEST 28THAVEW,S/OWDRAVUSST

SJACKSONST,E/O5THAVES 34THAVEW,N/OWBARRETTST

SLANDERST,W/O6THAVES MAGNOLIABR,E/OWGARFIELDSTOFFRP

SLUCILEST,W/O12THAVES WDRAVUSST,E/O20THAVEW

SMYRTLEST,W/OBEACONWRAVES WEMERSONPL,SE/O21STAVEW

SR99FY,S/OSCLOVERDALEST SWIFTAVES,NW/OSALBROPL

MONTHLYEXPANSIONFACTORS

AGGREGATEOF

CONTROL

COUNT

LOCATIONS

(Less:

WS

BR

)

Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec

365520 371781 376209 396861 396661 396875 407750 391554 386879 393962 399570 393648 389772

EXP 1.066 1.048 1.036 0.982 0.983 0.982 0.956 0.995 1.007 0.989 0.975 0.990

CBDEXPANSIONFACTORS

AGGREGATEOFALASKANWY,DENNYWY,STEWARTST,UNIVERSITYSTAND3AVE

63968

65716

65020

66554

67560

68126

71466

69220

66339

67150

71876

74174

68097

EXP 1.065 1.036 1.047 1.023 1.008 1.000 0.953 0.984 1.026 1.014 0.947 0.918




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8

11

BridgeCountLocations

1.

AuroraBridge

2. BallardBridge

3. FremontBridge

4. MontlakeBridge

5. SpokaneStreetCorridor(DuwamishRiverWestWaterway)

6. WestSeattleBridge(Highrise)

7. SWSpokaneBridge(Swing)

8. UniversityBridge

9. 1AveSBridge

10. 16thAveSBridge

11. 190Bridge

12. SR520Bridge

13. I5Bridge




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8

12

DowntownBicycleCordonCountLocations




48/68

8

13

2010PedestrianCollisionTables

2010PedestrianCollisionsbyLocationinStreet

Location Collisions PercentofTotal

Intersections 359 68%

Midblocks 156 29%

Unknown 14 3%

Total 529 100%

2010PedestrianCollisionsby

LocationinStreet

Intersections

Midblocks

Unknown




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8

14

2010PedestrianActionsduringCollisions

Action

Number

Percentof

Total

CrossingatIntersectionwithSignal 77 14.6%

CrossingatIntersection NoSignal 51 9.6%

CrossingMidblockNoCrosswalk 24 4.5%

OtherActions 19 3.6%

CrossingatIntersectionAgainstSignal 18 3.4%

FromBehindParkedVehicle 15 2.8%

Notin

Roadway

7

1.3%

AtIntersectionNotUsingCrosswalk 5 0.9%

StandingorWorkinginRoadway 5 0.9%

CrossingatIntersectionDiagonally 2 0.4%

CrossingMidblockinCrosswalk 2 0.4%

PlayinginRoadway 2 0.4%

FellorPushedintoPathofVehicle 1 0.2%

Walkingin

Roadway

1

0.2%

WalkingonShoulderOppositeTraffic 1 0.2%

MissingData 299 56.5%

Total 529 100.0%




50/68

8

15

2010ContributingCircumstancesforPedestriansin

Collisions

ContributingCircumstance

Number

Nonenoted 165


Missing 87

Other 55

DidNotGrantRightofWaytoVehicle 22

DisregardStopLight 17

Failureto

Use

Crosswalk

16

UnderInfluenceofAlcohol 10

Inattention 7


ImproperBacking 2



Exceeding

Speed

Limit

1

ApparentlyAsleep 1

DisregardStopSign 1


GrandTotal 529

2010ContributingCircumstancesforDriversinPedestrian

Collisions

ContributingCircumstance

Number


Nonenoted 103

Other 46

Inattention 10

DisregardTrafficSignal 9

UnderInfluenceofAlcohol 7

Improper

Backing

6



ExceedingSpeedLimit 1


ApparentlyIll 1

ImproperTurn 1

UnderInfluenceofDrugs 1

OtherDistractionsInsideVehicle 1



GrandTotal 449




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8

16

Severity

of

2010

Pedestrian

Collisions

by

Age

AgeGroup Missing Unknown NoInjury Possible

Injury

NonSerious

Injury

Serious

Injury

Fatality Total Percentof

Total

0to4 8 2 1 1 12 2.3%

5to14 8 11 8 3 30 5.7%

15to24 39 16 25 5 85 16.1%

25to34 4 47 21 14 6 92 17.4%

35to44 2 24 12 12 3 53 10.0%

45to54 13 7 11 5 3 39 7.4%

55to64 1 7 2 3 1 14 2.6%

65andup 3 3 1 2 9 1.7%

Missing 78 74 12 22 7 3 196 37.1%

Total 78 81 161 96 82 27 5 529 100.0%




52/68

8

17

2010PedestrianCollisionSeveritybyTimeofDay

Hour Fatality Injury NoInjury Missing Total

12am

or

No

Time

0

13

0

40

53

1am 0 5 0 0 5

2am 0 12 0 0 12

3am 0 2 1 0 3

4am 0 0 0 0 0

5am 0 1 0 0 1

6am 0 15 3 0 18

7am

0

24

1

0

25

8am 0 23 4 0 27

9am 1 22 3 0 26

10am 0 12 2 0 14

11am 0 22 1 0 23

12pm 0 25 2 0 27

1pm 1 18 1 0 20

2pm

1

30

1

0

32

3pm 0 43 1 0 44

4pm 0 34 1 0 35

5pm 0 38 4 0 42

6pm 1 31 2 0 34

7pm 0 25 0 0 25

8pm 1 16 1 0 18

9pm

0

20

0

0

20

10pm 0 11 2 0 13

11pm 0 12 0 0 12

Total 5 454 30 40 529




53/68

8

18

0

10

20

30

40

50

602010

Pedestrian

Collision

Severity

by

Time

of

Day

Missing

NoInjury

Injury

Fatality




54/68

8

19

0

50

100

150

200

250

300

FiveYear

(2006

2010)

Pedestrian

Collision

Severity

by

Time

of

Day

Missing

PropertyDamage

Only

Injury

Fatal




55/68

8

20

2010PedestrianCollisionSeveritybyDayofWeek

Dayof

Week

Fatality

Injury

Non

Injury

Missing

Total

Sunday 0 44 3 4 51

Monday 3 73 4 7 87

Tuesday 0 71 5 6 82

Wednesday 1 67 4 6 78

Thursday 1 68 5 6 80

Friday 0 78 4 7 89

Saturday

0

53

5

4

62

Total 5 454 30 40 529

2010PedestrianCollisionSeveritybyMonth

Month Fatality Injury NoInjury Missing Total

January 1 52 2 2 57

February

0

26

5

0

31

March 0 25 1 11 37

April 0 23 3 7 33

May 2 28 1 2 33

June 0 41 1 2 44

July 0 36 2 2 40

August 0 40 3 2 45

September

0

39

3

5

47

October 0 48 4 3 55

November 1 45 2 3 51

December 1 51 3 1 56

Total 5 454 30 40 529




56/68

8

21

0

50

100

150

200

250

300

350

January February March April May June July August September October November December

FiveYear

(2006

2010)

Pedestrian

Collision

Severity

by

Month

Missing

PropertyDamageOnly

Injury

Fatal




57/68

8

22

2010PedestrianCollisionSeveritybyVehicleAction

Vehicle

Action

Fatality

Injury

Property

DamageOnlyMissing

Total

VehicleGoingStraight 2 181 11 194

VehicleTurningLeft 2 149 10 161

VehicleTurningRight 83 6 89

VehicleBacking 1 17 1 19

ResultofInitialCollision 16 2 18

EnteringAtAngle 5 5

OtherActions

1

1

NotStated 1 1

PersonFell,JumpedorPushed 1 1

Missing 40 40

Total 5 454 30 40 529

2010Pedestrian

Collision

Severity

by

Clothing

Visibility

ClothingVisibility Fatality Injury PropertyDamage

Only

Missing Total

Mixed 3 133 11 147

Dark 1 51 7 59

Light 21 2 23

Retro Reflective 1 1

Missing 1 248 10 40 299

Total 5 454 30 40 529



2010 P d t i C lli i S it b W th C diti


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8

23

2010PedestrianCollisionSeveritybyWeatherConditions

Weather Fatality Injury PropertyDamageOnly Missing Total

Unknown

14

6

20Dry 3 260 12 275

Wet 61 3 64

Snow/Slush 2 114 9 125

Ice 3 3

Sand/Mud/Dirt 1 1

Other 1 1

Missing 40 40

Total

5

454

30

40

529




59/68

8

24

2010BicycleCollisionTables

BicycleCollisionsbyLocationinStreet

Location PercentofCollisions

Intersection 59%

Midblock 41%

BicyclistActionsduring2010Collisions

Action Total PercentofTotal

RidingwithTraffic 118 32%

CrossingorEnteringTraffic 67 18%

TurnedintoPathofVehicle 8 2%

AllOtherActions 5 1%

RidingagainstTraffic 3 1%

CrossingDiagonally

1

0%

Unknown/Missing 164 45%

Total 366 100%




60/68

8

25

Severityof2010BicycleCollisionsbyAge

AgeGroup

Missing

Unknown No

Injury Possible

Injury

Non

Serious

Injury

Serious

Injury

Fatality Total Percentof

Total

0to4 1 1 0.3%

5to14 4 2 1 2 9 2.5%

15to24 2 22 10 23 57 15.5%

25to34 3 24 14 43 3 87 23.7%

35to

44

2 29 8 19

3 1 63 17.2%

45to54 14 6 8 3 31 8.4%

55to64 13 5 4 1 23 6.3%

65andup 17 2 19 5.2%

Missing 40 18 6 9 4 1 78 21.3%

Total 40 25 130 54 104 13 1 367 100.0%



Severity of 2010 Bike Collisions by Time of Day S it f 2010 Bik C lli i b D f W k


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8

26

Severityof2010BikeCollisionsbyTimeofDay

Hour Injuryor

Fatality

Property

DamageOnly

Missing Total

12amorNoTime 2 0 21 23

1am 3 0 0 3

2am 4 0 0 4

3am 0 0 0 0

4am 0 0 0 0

5am 3 0 0 3

6am

2

0

0

2

7am 16 2 0 18

8am 26 5 0 31

9am 10 1 0 11

10am 13 3 0 16

11am 10 3 0 13

12pm 13 3 0 16

1pm 15 3 0 18

2pm 16 3 0 19

3pm 27 3 0 30

4pm 34 5 0 39

5pm 32 5 0 37

6pm 28 2 0 30

7pm 13 2 0 15

8pm 13 1 0 14

9pm

12

1

0

13

10pm 4 1 0 5

11pm 6 0 0 6

Total 302 43 21 366

Severityof2010BikeCollisionsbyDayofWeek

DayofWeek Injuryor

Fatality

Property

DamageOnly

Missing Total

Sunday 25 3 1 29

Monday 42 2 2 46

Tuesday 52 8 2 62

Wednesday 61 9 3 73

Thursday 41 10 4 55

Friday 45 7 5 57

Saturday 36 4 4 44

Total 302 43 21 366

Severityof2010BikeCollisionsbyMonth

Month Injuryor

Fatality

Property

DamageOnly

Missing Total

January 13 2 1 16

February

22

3

0

25

March 17 2 3 22

April 16 5 10 31

May 38 1 0 39

June 31 5 1 37

July 39 3 0 42

August 31 6 1 38

September

35

5

0

40

October 28 6 1 35

November 13 2 3 18

December 19 3 1 23

Total 302 43 21 366




62/68

8

27

0

50

100

150

200

250

January February March April May June July August September October November December

FiveYear

(2006

2010)

Bike

Collision

Severity

by

Month

Missing

PropertyDamageOnly

Injury

Fatal




63/68

8

28

Severityof2010BikeCollisionsbyFacilityType

FacilityType Fatality Injury PropertyDamageOnly

Missing Total

Roadway 97 15 112

DesignatedBikeRoute 1 31 6 38

MarkedCrosswalk 21 3 24

UnmarkedCrosswalk 12 4 16

Shoulder 9 9

Sidewalk

3

1

4

Missing 128 14 21 163

Total 1 301 43 21 366

Severityof2010BikeCollisionsbyClothingVisibility

Clothing Fatality Injury Property

DamageOnly

Missing Total

Mixed 1 107 14 122

Dark 34 8 42

Light 15 5 20

Retro Reflective 14 1 15

OtherReflectiveApparel 3 3

Missing 128 15 21 164

Total 1 301 43 21 366




64/68

8

29

Severityof2010BikeCollisionsbyWeather

Weather

Fatality

Injury

Property

DamageOnly

Missing

Total

ClearorPartly

Cloudy

1 213 25 239

Overcast 43 4 47

Raining 37 6 43

Unknown 8 8 16

Missing

21

21

Total 1 301 43 21 366



b f l ll


65/68

8

30

ContributingCircumstanceforBicyclistsinCollisions

ContributingCircumstance Total

None 141

DidnotGrantRightofWaytoPedestrian 66

Other 32

DidnotGrantRightofWaytoVehicle 22


Inattention 10


ImproperPassing

6

DisregardStopSign 5

OnWrongSideofRoad 4

ImproperUTurn 3

UndertheInfluenceofAlcohol 2


FollowingTooClosely 1

FailingtoSignal 1

ImproperTurn 1


HeadlightViolation 1

Missing 45

Total 366

ContributingCircumstanceforDriversin2010BicycleCollisions

DriverContributingCircumstance Collisions

DidNotGrantRightofWaytoBicycle 142

None 61

Other 31


Inattention 6


ImproperUTurn 5

DisregardStop

Sign

3

UndertheInfluenceofAlcohol 1



ImproperSignal 1

ImproperBacking 1

Unknown/Missing 100

Total 366


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67/68

The Seale Department of Transportaton

700 5th Avenue, Suite 3800

PO Box 34996

Seale, WA 98124-4996

(206) 684-ROAD

www.seale.gov/transportaton


68/68

making a DIFFERENCEIn order to minimize printng costs and reduce paper use,a limited number of copies were printed on recycled paper.

This report is available to view at:

hp://www.seale.gov/transportaton/reports.htm

2010 traffic report final

Documents