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  • Traffic Impact Study

    TMS Engineers, Inc.

    Westlake Elementary SchoolWestlake, Ohio

    June 5, 2017

    Prepared for:Westlake City Schools - Board of Education

    27200 Hilliard BoulevardWestlake, OH 44145

  • TRAFFICIMPACTSTUDYWestlakeElementarySchool

    Westlake,Ohio

    June5,2017

    PreparedFor:WestlakeCitySchoolsBoardofEducation

    27200HilliardBoulevardWestlake,Ohio44145

    PreparedBy:TMSEngineers,Inc.2112CaseParkwayS.

    Unit#7Twinsburg,Ohio44087

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    TableofContents

    ExecutiveSummary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viixChapter1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

    1.1 PurposeoftheReport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 StudyObjectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

    Chapter2AreaConditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5122.1 TransportationNetworkStudyArea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.2 Traffic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

    Chapter3ProjectedTrafficConditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13283.1 SiteTraffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.2 NonSiteTraffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203.3 FutureTraffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

    Chapter4TrafficAnalysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29674.1 CapacityandLOSatStudyAreaIntersections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294.2 CapacityandLOSatDevelopmentAccessIntersections. . . . . . . . . . . . . . . . . . . . . . . . . . . 464.3 AuxiliaryTurningLaneWarrantAnalysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494.4 TurnLaneLengthAnalysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504.5 AlternateScenarioAnalysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524.6 ImprovementstoAccommodateStudyAreaTraffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

    Chapter5Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6871

    June 5, 2017 Page i TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Appendices

    AppendixATrafficCountDataAppendixBTripGenerationDataAppendixCExistingCapacityAnalysisWorksheets2017AppendixDNoBuildCapacityAnalysisWorksheets2019AppendixENoBuildCapacityAnalysisWorksheets2039AppendixFNoBuildCapacityAnalysisWorksheets2039w/ImprovementsAppendixGBuildCapacityAnalysisWorksheets2019AppendixHBuildCapacityAnalysisWorksheets2019w/ImprovementsAppendixITrafficSignalWarrantAnalysisAppendixJBuildCapacityAnalysisWorksheets2039AppendixKBuildCapacityAnalysisWorksheets2039w/ImprovementsAppendixLAccessCapacityAnalysisWorksheets2019AppendixMAccessCapacityAnalysisWorksheets2039AppendixNODOTTurnLaneWarrantGraphsAppendixOODOTTurnLaneDesignCriteriaAppendixPCapacityAnalysisWorksheets2039AlternateScenarioAppendixQCapacityAnalysisWorksheets2039AlternateScenariow/ImprovementsAppendixRODOTChannelizingIslandDesignCriteria

    June 5, 2017 Page ii TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    ListofFigures

    Figure1.1LocationMap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Figure1.2SitePlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Figure2.1FunctionalClassification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Figure2.2AerialView . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure2.3ExistingLaneUse&TrafficControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure2.4ExistingWeekdayPeakHourTrafficVolumes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Figure3.1GeneratedTrafficDistributionPassengerVehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Figure3.2GeneratedTrafficDistributionSchoolBuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Figure3.3GeneratedTrafficPassengerVehicles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Figure3.4GeneratedTrafficSchoolBuses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Figure3.52019NoBuildWeekdayTrafficVolumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Figure3.62039NoBuildWeekdayTrafficVolumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Figure3.72019BuildWeekdayTrafficVolumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Figure3.82039BuildWeekdayTrafficVolumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Figure4.1AlternateScenarioGeneratedTrafficPassengerVehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Figure4.2AlternateScenario2039BuildWeekdayTrafficVolumes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Figure4.3RecommendedLaneUseandTrafficControlSitePlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64Figure4.4RecommendedLaneUseandTrafficControlInteriorTrafficControl . . . . . . . . . . . . . . . . . 66Figure4.5RecommendedLaneUseandTrafficControlAlternateScenario. . . . . . . . . . . . . . . . . . . . . . 67

    June 5, 2017 Page iii TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    ListofTables

    Table2.1FunctionalClassification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Table2.2RoadwayCharacteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Table3.1ITELandUseCodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Table3.2NewTripGeneration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Table3.3AMTripOrigins&Destinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Table3.4PMTripOrigins&Destinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Table3.5GrowthRates&Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Table3.6DHVFactorCalculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Table4.1IntersectionLOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Table4.22017LevelsofService(ExistingConditions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Table4.32019LevelsofService(NoBuildConditions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Table4.42039LevelsofService(NoBuildConditions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Table4.52039LevelsofService(NoBuildConditionsRecommendedImprovements) . . . . . . . . . 33Table4.62019LevelsofService(BuildConditions). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Table4.72019NoBuildvsBuildScenario(AMPeakHourComparisonTable). . . . . . . . . . . . . . . . . . . 35Table4.82019NoBuildvsBuildScenario(PMPeakHourComparisonTable) . . . . . . . . . . . . . . . . . . . 36Table4.92019LevelsofService(BuildConditionsRecommendedImprovements). . . . . . . . . . . . . 38Table4.102039LevelsofService(BuildConditions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Table4.112039NoBuildvsBuildScenario(AMPeakHourComparisonTable) . . . . . . . . . . . . . . . . . 41Table4.122039NoBuildvsBuildScenario(PMPeakHourComparisonTable). . . . . . . . . . . . . . . . . . 42Table4.132039LevelsofService(BuildConditionsRecommendedImprovements) . . . . . . . . . . . 44Table4.142019LevelsofService(BuildConditionsAccessLocations). . . . . . . . . . . . . . . . . . . . . . . . . 46Table4.152039LevelsofService(BuildConditionsAccessLocations). . . . . . . . . . . . . . . . . . . . . . . . . 48

    June 5, 2017 Page iv TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Table4.16TurningLaneWarrantsCenterRidgeRoad&ProposedEastAccess . . . . . . . . . . . . . . . . . 49Table4.17TurnLaneLengthAnalysisCenterRidgeRoad&DoverCenterRoad. . . . . . . . . . . . . . . . . 50Table4.18TurnLaneLengthAnalysisCenterRidgeRoad&ProposedWestAccess . . . . . . . . . . . . . 51Table4.192039LevelsofService(BuildConditionsAlternateScenario) . . . . . . . . . . . . . . . . . . . . . . . 56Table4.202039LevelsofService(AlternateScenarioRecommendedImprovements) . . . . . . . . . 57Table4.212039SitePlanvsAlternateScenario(AMPeakHourComparisonTable). . . . . . . . . . . . . . 59Table4.232039SitePlanvsAlternateScenario(PMPeakHourComparisonTableAMS) . . . . . . . 60Table4.24TurnLaneLengthAnalysisCenterRidgeRoad&DoverCenterRoad. . . . . . . . . . . . . . . . . 61Table4.25TurnLaneLengthAnalysisCenterRidgeRoad&GlenmoreDrive/WestAccess . . . . . . 61

    June 5, 2017 Page v TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    ExecutiveSummaryThistrafficimpactstudyhasbeenpreparedattherequestoftheWestlakeCitySchoolsforaproposedelementaryschool.TheprojectsiteislocatedintheCityofWestlake,CuyahogaCounty,OhioalongthesouthsideofCenterRidgeRoad(USRoute20)betweenGlenmoreDrivetothewestandDoverCenterRoadtotheeast.

    Theproposedelementaryschoolisexpectedtohaveastudentpopulationof1,450studentswith120staffforgradesprekindergartenthroughfourthgrade.Figure1.2showstheproposedsiteplanfortheelementaryschool.

    ThedevelopmentisproposedwithtwoaccessdrivewaysalongthesouthsideofCenterRidgeRoadandoneaccessdrivewayalongthenorthsideofWestownBoulevard.

    Theyear2019wasanalyzedfortheopeningyearconditions,andtheyear2039wasanalyzedasthedesignyearforthetwentyyearconditionsanalysis.

    Theelementaryschooldaybeginsat7:50AMandendsat2:20PM,thereforethereportanalyzedthehoursof7:30to8:30AMand2:00PMto3:00PM.The7:30to8:30AMhourwasreferredtoastheweekdayAMpeakhourforthepurposeofthisreport.The2:00to3:00PMhourwasreferredtoasthePMpeakhourforthepurposeofthisreport.Theseperiodswereanalyzedsincetheyreflecttheperiodofthehighestvolumeoftrafficflowfortheproposedschool.

    Theelementaryschoolwasassumedtogenerateatotalof30enteringand30exitingtripsforschoolbuses.Thesevolumesareincludedinthetotalgenerationvolumescalculatedforthisanalysis.

    TheproposedelementaryschoolisexpectedtogeneratethefollowingaveragehourlytrafficduringtheAMandPMpeakperiods:

    ITETRIPGENERATION

    SIZE(Staff)

    TRIPENDS

    ITECode

    LandUseDescriptionAMPeakHourofGenerator(Enter/Exit)

    PMPeakHourofGenerator(Enter/Exit)

    520 ElementarySchool 120 431 368 176 225TOTALNEWGENERATEDTRIPS 799 401

    June 5, 2017 Page vi TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    RecommendedImprovementstoServeExistingConditionsTheexistingstudyareaintersectionsweredeterminedtobeoperatingwithacceptablelevelsofserviceduringthepeakhoursunderstudy.

    ItshouldbenotedthatawestboundrightturnlaneatintersectionofCenterRidgeRoadandDoverCenterRoadhasbeenpreviouslyrecommendedinotherreportspreparedfortheCityofWestlake.Thisrecommendationwasbasedonananalysisoftheroadwaypeakhours.Theelementaryschoolanalysisisbasedonthepeakhouroftheschooltrafficvolumeswhichdoesnotcoincidewiththepeakhouroftrafficfortheroadway(i.etheschoolpeaksintheafternoonfrom2:00to3:00PMwhiletheroadwaypeaksfrom5:00to6:00PM).

    RecommendedImprovementstoServeFutureConditionswithouttheDevelopmentThestudyareaintersectionsandapproachesareexpectedtooperatewithacceptablelevelsofserviceundertheexpected2019NoBuildconditionsduringtheAMandPMpeakhours.

    ThefollowingimprovementswererecommendedtoaccommodatetheYear2039NoBuildtrafficatthestudyareaintersectionsthatdonotprovideaccesstotheproposedelementaryschool.

    CenterRidgeRoad&DoverCenterRoad# Constructawestboundrightturnlane.# Constructanorthboundrightturnlane.

    NoadditionalintersectionimprovementswerefoundtobenecessarytoaccommodatetheYear2039NoBuild trafficat theremainingstudyarea intersections. Theremainingstudy intersectionsareanticipatedtooperatewithacceptablelevelsofserviceduringtheAMandPMpeakhours.

    RecommendedImprovementstoMitigatetheTrafficAssociatedwiththeDevelopmentThefollowinglaneuseandtrafficcontrolarerecommendedtoaccommodatethe2019and2039sitegenerated(Build)trafficbasedonthedevelopmentsiteplanshowninFigure1.2:

    CenterRidgeRoad&GlenmoreDrive(2039)# Constructasouthboundleftturnlane.

    CenterRidgeRoad&DoverCenterRoad# Constructawestboundrightturnlane.(2019)# Constructasouthboundrightturnlane.(2039)

    June 5, 2017 Page vii TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    DoverCenterRoad&WestownBoulevard(2019)# Restripetheeastboundapproachforoneingresslaneandtwoegresslanesconsisting

    ofarightturnlaneandleftturnlane.

    Thefollowinglaneuseandtrafficcontrolarerecommendedtoaccommodatethe2039sitegenerated(Build)trafficbasedontheAlternateScenariodetailedinSection4.5:

    CenterRidgeRoad&DoverCenterRoad# Constructasouthboundrightturnlane.

    DoverCenterRoad&WestownBoulevard# Installtrafficsignalcontrol.# Restripetheeastboundapproachforoneingresslaneandtwoegresslanesconsisting

    ofarightturnlaneandleftturnlane.

    DevelopmentAccessRecommendationsThefollowinglaneuseandtrafficcontrolarerecommendedtoaccommodatethe2019and2039sitegenerated(Build)trafficbasedonthedevelopmentsiteplanshowninFigure1.2:

    CenterRidgeRoad&ProposedWestAccess(2019)# Installtrafficsignalcontrol.# Constructtheproposeddevelopmentroadwaywithoneegresslaneandtwoingress

    lanes.# Theegresslanesshouldconsistofanexclusiveleftturnlaneandanexclusiverightturn

    lane.# Constructanexclusivewestboundleftturnlane.# Includethechurchaccessdriveaspartofintersectionandtrafficsignalcontrol.

    CenterRidgeRoad&ProposedEastAccess(2019)# Constructtheproposeddevelopmentroadwaywithoneegresslaneandoneingress

    lane.# Restricttheaccessdrivewaytorightturnsinandrightturnsoutofthesiteonlythrough

    theuseofachannelizingisland.# Theegressdriveshouldbeconstructedpertherecommendationsandguidelinesfound

    intheODOTAccessManagementManualforchannelizingislands(SeeAppendixR).# Installstopsigncontrolonthenorthboundapproach.

    June 5, 2017 Page viii TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Thefollowinglaneuseandtrafficcontrolarerecommendedtoaccommodatethe2039sitegenerated(Build)trafficbasedontheAlternateScenariodetailedinSection4.5:

    CenterRidgeRoad&ProposedWestAccess/GlenmoreDrive# ConstructthedevelopmentWestAccessdirectlyacrossfromGlenmoreDrive.# Installtrafficsignalcontrol.# Constructtheproposeddevelopmentroadwaywithoneegresslaneandtwoingress

    lanes.# Theegresslanesshouldconsistofanexclusiveleftturnlaneandasharedthroughand

    rightturnlane.# Constructanexclusivewestboundleftturnlane.# Constructanexclusiveeastboundleftturnlane.

    CenterRidgeRoad&ProposedEastAccess# Constructtheproposeddevelopmentroadwaywithoneegresslaneandoneingress

    lane.# Restricttheaccessdrivewaytorightturnsinandrightturnsoutofthesiteonlythrough

    theuseofachannelizingisland.# Theegressdriveshouldbeconstructedpertherecommendationsandguidelinesfound

    intheODOTAccessManagementManualforchannelizingislands(SeeAppendixR).# Installstopsigncontrolonthenorthboundapproach.

    ConclusionBasedupontheresultsoftheanalysisinthisstudyandthecorrespondingrecommendations,itcanbeseen that the site generated traffic can be accommodatedwithout adversely impacting the arearoadwaynetworkundereachscenario.

    June 5, 2017 Page ix TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Chapter1Introduction

    1.1 PurposeofReport

    ThistrafficimpactstudyhasbeenpreparedattherequestoftheWestlakeCitySchoolsforaproposedelementaryschool.TheprojectsiteislocatedintheCityofWestlake,CuyahogaCounty,OhioalongthesouthsideofCenterRidgeRoad(USRoute20)betweenGlenmoreDrivetothewestandDoverCenterRoadtotheeast.Figure1.1,Page2showstheproposedlocationofthedevelopment.

    Theproposedelementaryschoolisexpectedtohaveastudentpopulationof1,450studentswith120staffforgradesprekindergartenthroughfourthgrade.Figure1.2,Page3showstheproposedsiteplanfortheelementaryschool.

    ThedevelopmentisproposedwithtwoaccessdrivewaysalongthesouthsideofCenterRidgeRoadandone access driveway along the north side ofWestownBoulevard. The proposed location of thedevelopmentroadwayscanbeseeninFigure1.2,Page3.TheWestownBoulevardaccessisproposedforschoolbustrafficonly.AllpassengervehiclesareproposedtousetheaccesslocationsalongCenterRidgeRoad.

    ThecurrentdevelopmentscheduleexpectstheschooltoopenintheFallof2019.Therefore,2019willbeanalyzedfortheopeningyearconditions,andtheyear2039willbeanalyzedasthedesignyearforthetwentyyearconditionsanalysis.

    June 5, 2017 Page 1 TMS Engineers, Inc.

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudyLocationMap

    Figure1.1

    Page2

    NOTTOSCALE

    DEVELOPMENTSITE

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudySitePlan

    Figure1.2

    Page3

    NOTTOSCALE

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    1.2 StudyObjectives

    Thisstudyisstructuredforthefollowingpurposes;

    # to adequately assess the traffic impacts associatedwith the proposed elementaryschoolidentifythelevelofoffsiteaccessandtraffic,

    # toprovideacomprehensivestudywhichevaluatesanddocumentsthetrafficimpactsandoffsiteimprovements,wherewarranted,

    # andtoprovideatechnicallysoundbasistoidentifymitigationrequirementstooffsitetrafficimpacts.

    Thisstudydocumentsthemethodologies,findingsandconclusionsoftheanalysis,includingthebasisforallassumptions,trafficparametersutilizedandconclusionsreached.

    Thetrafficimpactswillbedeterminedbycomparingtheexistingintersectionlevelsofservicebeforethedevelopment of the proposed elementary school to the anticipated levelsofservice after theelementaryschooliscompleted.LevelsofserviceforthestudyareaandaccessdrivewayintersectionswillbecalculatedusingthecomputerizedversionoftheTransportationResearchBoard'sHighwayCapacityManual6THEdition,HCM6E(HCS7,Release7.2).

    Thejustificationforanychangestotheintersectiontrafficcontrolwillbedeterminedbycomparingdata collectedof theexisting traffic conditions to the criteriaestablishedby theOhioManualofUniformTrafficControlDevicesandprofessionalengineeringjudgmentfromanonsitefieldreview.

    TheAuxiliaryLaneGraphsfoundinSection4016oftheLocationandDesignManual,Volume1willbeusedtodeterminetheneedforauxiliaryturnlanesatunsignalizedintersectionsasrecommendedintheLocationandDesignManual,Volume1andtheAccessManagementManual.

    IntersectiongeometricdesigncriteriawillbebasedintheinformationandproceduresfoundintheOhioDepartmentofTransportationsLocation&DesignManual,Volume1.

    June 5, 2017 Page 4 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Chapter2AreaConditions

    2.1 TransportationNetworkStudyArea

    TheOhioDepartmentofTransportationfunctionallyclassifiesroadwaystohelpdefinearoadwayscharacteristicsaswellasidentifyroadwaysthatareeligibleforfederalfunds.Functionalclassificationisthegroupingofroads,streets,andhighwaysinahierarchybasedonthetypeofhighwayservicetheyprovide.Generally,streetsandhighwaysperformtwotypesofservice.Theyprovideeithertrafficmobilityorlandaccessandcanberankedintermsoftheproportionofservicetheyprovide.TheODOTfunctionalclassificationoftheroadwaysinthestudyareacanbeseenonODOTswebsite.

    The following table lists the study roadways that have an assigned functional classification asdeterminedbyODOTandlocalgovernmententities.Roadwaysthatarenotlistedashavingafunctionalclassificationcanbeassignedintooneoftwocategories.Thefirstcategoryisalocalroadwayandthesecondcategoryisthatofanaccessdrive.

    Table2.1FunctionalClassificationROADWAY AREA FC# CLASSIFICATION

    CenterRidgeRoad(USRoute20) Urban 3 PrincipalArterialDoverCenterRoad Urban 5 MajorCollectorGlenmoreDrive Urban 7 LocalRoadway

    WestownBoulevard Urban 7 LocalRoadway

    Figure2.1,Page6detailsthesectionofthefunctionalclassificationmapforthestudyarea. TheclassificationmapscancurrentlybefoundonlineatthefollowingODOTwebaddress:

    http://www.dot.state.oh.us/Divisions/Planning/ProgramManagement/MajorPrograms/MapRoom/Forms/AllItems.aspx

    June 5, 2017 Page 5 TMS Engineers, Inc.

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudyFunctionalClassification

    Figure2.1

    Page6

    NOTTOSCALE

    DEVELOPMENTSITE

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Thefollowingtabledetailstheprimarycharacteristicsofthestudyarearoadways:

    Table2.2RoadwayCharacteristicsROADWAY #OFLANES ORIENTATION

    SPEEDLIMIT(MPH)

    ADT*(VPD)

    CenterRidgeRoad(US20) 4 EastWest 35 18,280DoverCenterRoad 2 NorthSouth 35 14,060GlenmoreDrive 2 NorthSouth 25 760

    WestownBoulevard 2 EastWest 25 1,320*Trafficdatacollectedin2017forthisreport/Roundedtonearest10TH

    Thefollowingsectionsdetailthelaneuse,trafficcontrol,andaveragedailytrafficateachlocationunderstudyforthisreport.

    CENTERRIDGEROAD(US20)&DOVERCENTERROAD

    CenterRidgeRoadWestApproach CenterRidgeRoadEastApproach1ExclusiveLeftTurnLane 1ExclusiveLeftTurnLane1ThroughLane 1ThroughLane1SharedThrough&RightTurnLane 1SharedThrough&RightTurnLane

    DoverCenterRoadNorthApproach DoverCenterRoadSouthApproach1ExclusiveLeftTurnLane 1ExclusiveLeftTurnLane1SharedThrough&RightTurnLane 1SharedThrough&RightTurnLane

    Theintersectioniscontrolledbyatrafficsignal.Theintersectionoperateswithan8phaseoperationthatallowspermissiveandprotectedleftturnsonallapproaches.Theleftturnmovementsfromallapproachescanbemadewhentheleftturnarrowallowsthemovement(protectedmovement)orduring the green ball indicationwhen there is a gap in the opposing through traffic (permissivemovement).

    June 5, 2017 Page 7 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    CENTERRIDGEROAD(US20)&GLENMOREDRIVE

    CenterRidgeRoadWestApproach CenterRidgeRoadEastApproach1SharedThrough&LeftTurnLane 1ThroughLane1ThroughLane 1SharedThrough&RightTurnLane

    GlenmoreDriveNorthApproach1SharedLeft&RightTurnLane

    TheintersectioniscontrolledbyastopsignontheGlenmoreDriveapproach.TheCenterRidgeRoadapproachesoperateunderfreeflowconditionswiththewestboundleftturnmovementyieldingtotheeastboundmovements.

    DOVERCENTERROAD&WESTOWNBOULEVARD

    DoverCenterRoadNorthApproach DoverCenterRoadSouthApproach1SharedThrough&RightTurnLane 1SharedThroughLane&LeftTurnLane

    WestownBoulevardWestApproach1SharedLeft&RightTurnLane

    TheintersectioniscontrolledbyastopsignontheWestownBoulevardapproach.TheDoverCenterRoadapproachesoperateunderfreeflowconditionswiththenorthboundleftturnmovementyieldingtothesouthboundmovements.

    Figure2.2,Page9showsanaerialviewofthestudyarea.

    Figure2.3,Page10showstheexistinglaneuseandtrafficcontrolconditionsinthestudyarea.Thesewillbeconsideredtheexistingbaseconditionsforthisreport.

    June 5, 2017 Page 8 TMS Engineers, Inc.

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    AerialView

    Figure2.2

    Page9

    NOTTOSCALE

    DoverCenterRoad

    DEVELOPMENTSITE

    Westown Boulevard

    GlenmoreDrive

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    ExistingLaneUse&TrafficControl

    Figure2.3

    Page10

    ExistingLaneUse

    LEGEND

    ExistingSignal

    ExistingStopSignSTOP

    ProposedAccess

    STOP

    ST

    OP

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    2.2 Traffic

    Weekdayninehourturningmovementcountswereperformedatthefollowinglocations:

    1. CenterRidgeRoad(US20)&DoverCenterRoad2. CenterRidgeRoad(US20)&GlenmoreDrive3. DoverCenterRoad&WestownBoulevard

    ThetrafficcountswereperformedonTuesday,May9,2017.

    Theweekdaytrafficcountswereconductedinfifteen(15)minuteintervalsbetweenthehoursof7AM10AM,11AM1PM,and2PM6PM,thenhourlytotalswerecalculated.AcopyoftheintersectionturnmovementcountsareincludedinAppendixA.

    AveragedailytrafficwascalculatedfortheroadwaysusingexpansionfactorstoaccountfordailyandseasonalvariationsaccordingtotherecommendationsandlatestdatafromtheOhioDepartmentofTransportation.

    Theelementaryschooldaybeginsat7:50AMandendsat2:20PM,thereforethereportwillanalyzethehoursof7:30to8:30AMand2:00PMto3:00PM.The7:30to8:30AMhourwillbereferredtoastheweekdayAMpeakhourforthepurposeofthisreport.The2:00to3:00PMhourwillbereferredtoasthePMpeakhourforthepurposeofthisreport.Theseperiodswillbeanalyzedsincetheyreflecttheperiodofthehighestvolumeoftrafficflowfortheproposedschool.TheexistingAMandPMpeakhourtrafficvolumesareshowninFigure2.4,Page12.

    June 5, 2017 Page 11 TMS Engineers, Inc.

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    ExistingWeekdayPeakHour

    TrafficVolumes

    Figure2.4

    Page12

    PMPeakHourTraffic

    AMPeakHourTrafficLEGEND

    XX

    (XX)

    75 (106)275 (258)150 (105)

    176 (106)631 (368)

    55 (81)

    106 (133)328 (271)116 (84)

    233 (92)350 (367)82 (76)

    24 (11)483 (592)

    6 (3)878 (507)

    9 (11)25 (11)

    25 (20)334 (390)

    8 (13)478 (454)

    62 (35)22 (18)

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Chapter3ProjectedTrafficConditions

    3.1 SiteTraffic

    TripGenerationCalculatingfuturetotaldrivewaytripsrequiresanestimateofthetrafficgeneratedbytheproposeddevelopment.Themostwidelyacceptedmethodofdeterminingtheamountoftrafficthattheproposeddevelopmentwillgenerateistocomparetheproposedlandusewithexistingfacilitiesofthesameuse.The Institute of Transportation Engineers (ITE) has prepared amanual titled TripGenerationManual, which is a compilation of similar traffic generation studies to aide in making such acomparison.Themostrecentupdateofthismanualisthe9THeditionandwasutilizedforthisstudy.

    The proposed development is expected to consist of a prekindergarten through fourth gradeelementaryschool.Theschoolisexpectedtohaveastudentpopulationof1,450studentsand120staff.

    The following table details the development land use from the site plan (Figure 1.2) and thecorrespondingITElandusethatwillbeusedtoforecastthesitegeneratedtrafficvolumesfortheBuildconditions:

    Table3.1ITELandUseCodesSITEPLAN

    DESCRIPTIONLANDUSE ITE

    CODEITE

    DESCRIPTION

    PK4School Institutional 520 ElementarySchool

    June 5, 2017 Page 13 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    The following tables detail the development generated traffic volumes based on the previouslydescribedmethodsasoutlinedinthe(ITE)TripGenerationHandbook.Calculationswerepreparedbasedonthenumberofstudentsandthenumberofstaff.Thevolumeofsitegeneratedtripswashigherusingthenumberofstafffortheschoolandwillthereforebeusedintheanalysis.CopiesofthetripgenerationworksheetscanbeseeninAppendixB.

    Table3.3NetTripGenerationITETRIPGENERATION

    SIZE(Staff)

    TRIPENDS

    ITECode

    LandUseDescriptionAMPeakHourofGenerator(Enter/Exit)

    PMPeakHourofGenerator(Enter/Exit)

    520 ElementarySchool 120 431 368 176 225TOTALNEWGENERATEDTRIPS 799 401

    DistributionofGeneratedTraffic

    Thedirectionaldistribution for thenewgeneratedtraffic isa functionof theprevailingoperatingconditionsontheexistingroadways.ThedistributionpatternthatwasassumedisshowninthetablesthatfollowandarebasedupontheexistingtrafficvolumesattheintersectionofCenterRidgeRoadandDoverCenterRoadduringtheAMandPManalysishoursshowninFigure2.4.

    Table3.4AMTripOriginsandDestinationsORIGIN/

    DESTINATIONROUTE FROM

    %TOTAL

    NEWTRIPS

    TO%

    TOTALNEWTRIPS

    North DoverCenter 500 19% 84 737 29% 105South DoverCenter 550 21% 92 412 16% 59East CenterRidge 665 26% 111 897 35% 128West CenterRidge 862 34% 144 531 20% 76

    TOTALS 2577 100% 431 2577 100% 368

    June 5, 2017 Page 14 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Table3.5PMTripOriginsandDestinationsORIGIN/

    DESTINATIONROUTE FROM

    %TOTAL

    NEWTRIPS

    TO%

    TOTALNEWTRIPS

    North DoverCenter 469 23% 40 469 23% 51South DoverCenter 488 24% 42 415 20% 46East CenterRidge 535 26% 46 557 27% 61West CenterRidge 555 27% 48 606 30% 67

    TOTALS 2047 100% 176 2047 100% 225

    ThedirectionaldistributionforthenewAMandPMpeakhourgeneratedtrafficpassengervehicletripsareshowngraphicallyinFigure3.1,Page16.ThedirectionaldistributionforthenewAMandPMpeakhourgeneratedschoolbustripsareshowngraphicallyinFigure3.2,Page17.

    AssignmentofGeneratedTraffic

    BaseduponthedistributionpatternsshowninFigures3.1&3.2,thenewAMandPMpeakgeneratedtrafficwereassignedtothestudyintersections. TheassignmentsoftheestimatednewgeneratedpassengervehicletrafficfortheproposedelementaryschoolareshowngraphicallyinFigure3.3,Page18.TheassignmentsoftheestimatednewgeneratedschoolbustrafficfortheproposedelementaryschoolareshowngraphicallyinFigure3.4,Page19.

    June 5, 2017 Page 15 TMS Engineers, Inc.

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    NewGeneratedTrafficDistribution

    Figure3.1

    Page16

    LEGEND

    AMPeakHourDistributionXX

    RED=EnteringVolumes

    GREEN=ExitingVolumes

    PMPeakHourDistribution(XX)

    34% (27%

    )

    80% (70%)

    19% (23%)

    21% (24%)

    66% (73%

    )

    20% (30%)

    66% (73%

    )20%

    (30%)34%

    (27%)

    26% (26%

    )

    29% (23%

    )35%

    (27%)

    16% (20%

    )

    16% (20%)

    21% (24%)

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    NewGeneratedTrafficDistribution

    SchoolBuses

    Figure3.2

    Page17

    LEGEND

    AMPeakHourDistributionXX

    RED=EnteringVolumes

    GREEN=ExitingVolumes

    PMPeakHourDistribution(XX)

    34% (27%

    )

    19% (23%)

    20% (30%)29% (23%)35% (27%)

    100% (100%

    )

    100% (100%)

    20% (30%

    )26%

    (26%)

    34% (27%

    )

    79% (76%)

    21% (24%)

    34% (27%

    )

    20% (30%

    )34% (27%

    )

    20% (30%

    )

    84% (80%

    )16%

    (20%)

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    NewGeneratedTraffic

    PassengerVehicles

    Figure3.3

    Page18

    NEWGENERATEDTRAFFIC

    TOTALTRIPS

    ENTER

    EXIT

    AM739

    401

    338

    PM341

    146

    195

    LEGEND

    AMPeakHourTripsXX

    RED=EnteringVolumes

    GREEN=ExitingVolumes

    PMPeakHourTrips(XX)

    134 (40)

    269 (137)

    78 (33)

    86 (35)

    267 (106)

    69 (58)

    267 (106)69 (58)

    134 (40)

    103 (38)

    97 (45)118 (53)

    54 (39)

    54 (39)

    86 (35)

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    NewGeneratedTraffic

    SchoolBuses

    Figure3.4

    Page19

    NEWGENERATEDTRAFFIC

    TOTALTRIPS

    ENTER

    EXIT

    AM60

    30

    30

    PM60

    30

    30

    LEGEND

    AMPeakHourTripsXX

    RED=EnteringVolumes

    GREEN=ExitingVolumes

    PMPeakHourTrips(XX)

    10 (8)

    6 (7)

    6 (9)9 (7)

    10 (8)

    30 (30)

    30 (30)

    6 (9)8 (8)

    10 (8)

    24 (23)

    6 (7)

    25 (24)5 (6)

    10 (8)

    6 (9)

    10 (8)

    6 (9)

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    3.2 NonSiteTraffic

    BackgroundTrafficGrowth

    Usuallythedesignofnewroadwaysorimprovementstoexistingroadwaysshouldnotbebasedoncurrenttrafficvolumesalone,butshouldconsiderfuturetrafficvolumesexpectedtomakeuseofthefacilities.Roadwaysshouldbedesignedtoaccommodatethetrafficvolumethatislikelytooccurwithinthedesignlifeofthefacility.Inapracticalsense,thisdesignvolumeshouldbeavaluethatcanbeestimatedwithreasonableaccuracy.Itisbelievedthatthemaximumdesignperiodisintherangeof15to24years.Therefore,aperiodoftwentyyearsiswidelyusedasabasisfordesign.Trafficcannotusuallybeforecastedaccuratelybeyondthisperiodonaspecificfacilitybecauseofprobablechangesinthegeneralregionaleconomy,population,andlanddevelopmentalongtheroadway.TheODOTAccessManagementManualrequiresthatopeningyearandtwentyyeardesignhourtrafficvolumesbeanalyzedforaproposeddevelopment.

    Roadways,likethosefoundinthestudyarea,carryasignificantamountofthroughtrafficduetotheirfunctionalcharacteristics. This through trafficcomponentgenerally increasesasregionalgrowthoccurs.Therefore,itisanticipatedthatexistingtrafficonthestudyarearoadwayswillincreaseinfutureyears.Anyrecommendedimprovementsfortheseintersectionsshouldadequatelyhandlethetransportationneeds of the intersections for twenty years from the opening of the project based upon soundengineeringpracticeandthelikelihoodoftrafficgrowthduetothefunctionalcharacteristicsoftheroadways.

    TheelementaryschoolisexpectedtobeopenintheFallof2019.Theyears2019and2039willbeanalyzedfortheproposedelementaryschool.Therefore,itisnecessarytoestimatehistoricalgrowthrates in order to establish the future traffic on the study area roadways due to nonsite relatedconditions.

    TheODOTTrafficMonitoringManagementSystem(TMMS)wasconsultedtodeterminepasthistoricaltrendsonthestudyarearoadways.TheODOTTrafficMonitoringManagementSystem(TMMS)canbecurrentlyaccessedatthefollowingwebaddress:

    http://www.dot.state.oh.us/Divisions/Planning/TechServ/traffic/Pages/TMMS.aspx

    June 5, 2017 Page 20 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    TheTMMSprovideddataatthefollowinglocationthatwasusedtodeterminethestudyareagrowthrates:

    1. CenterRidgeRoad(US20)EastofCanterburyLocationID183182. CenterRidgeRoad(US20)EastofBradleyLocationID182183. DoverCenterRoadNorthofLorainLocation486184. DoverCenterRoadNorthofHilliardLocation301898

    TheintersectionofCenterRidgeRoadandDoverCenterRoadhadalsobeenpreviouslycountedbyTMSEngineers,Inc.intheyears2007,2012,2014,and2016

    Basedonthecollectedhistoricaltrafficdata,alineargrowthrateof1.00%peryearwillbeusedtodeterminetheanticipatedstudyareavolumesunderthe2019and2039NoBuildconditionsforCenterRidgeRoad(US20)andDoverCenterRoad.Nogrowthratewillbeappliedtothelocalroadways,localaccessdriveways,andturningmovementsattheintersections.

    Alineargrowthratewasutilizedtoestimatenonsiterelatedtrafficgrowth.Thesegrowthrateswillbeappliedtotheexistingtrafficvolumes(Figure2.4).Thegrowthrateandfactorsforthestudyarearoadwayscanbeseeninthefollowingtable:

    Table3.5GrowthRates&FactorsROADWAY

    GROWTHRATE(AnnualGrowth)

    2019GROWTHFACTOR

    2039GROWTHFACTOR

    CenterRidgeRoad(US20) 1.00% 1.02 1.22

    DoverCenterRoad 1.00% 1.02 1.22

    June 5, 2017 Page 21 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    DesignHourTraffic

    The traffic patterns on any roadway typically show considerable variation in the traffic volumesexperiencedduringthevarioushoursofthedayandinthehourlyvolumesexperiencedthroughouttheyear.Akeydecisioninthedesignprocessinvolvesdeterminingwhichofthesehourlytrafficvolumesshouldbeusedasthebasisforthedesign.Itwouldbewastefultopredicateadesignonthemaximumpeakhourtrafficthatoccursduringtheyearandtheuseoftheaveragehourlytrafficwouldresultinaninadequatedesign.Thehourlytrafficvolumesusedinadesignshouldnotbeexceededveryoftenorbyverymuch.Ontheothersideofthespectrum,thehourlytrafficvolumesshouldnotbesohighthattrafficwouldrarelybesufficienttomakefulluseofthedesignedfacility.NormaldesignpolicyintheStateofOhioisbaseduponareviewofcurvesthatdepictthevariationinhourlytrafficvolumesduringtheyear.TheOhioDepartmentofTransportationrecommendsusingthe30THhighesthourasadesigncontrolforurbanstreets.Thereistypicallyverylittledifferencebetweenthevolumesinthisrange.TheOhioDepartmentofTransportationprovidesfactorsoramethodologytodeterminefactorsthatareappliedtocounteddailytrafficvolumestodetermineappropriatedesignhourtrafficvolumes.

    FollowingguidelinessetforthintheODOTAccessManagementManual,allanalysesarerequiredtoexaminethedesignhourvolumefortheadjacentroadwayandpeakhourtrafficvolumeoftheproposeddevelopment.

    TheODOTCertifiedTrafficManualprovidesthemethodsforestimatingdesignhourvolumes.Thepreferredmethodistocomputetheratioofthepeakhourvolumeagainstthedailytrafficvolumeforthestudyarearoadways.AKfactoristhenselectedfromavailableODOTdataforrouteswiththesamefunctional classification and a similarADT. The selectedKfactor is then divided by the ratio todeterminetheDHVfactorthatwillbeusedtocomputethedesignhourvolumes.

    Forroadwayswithoutcomparablesitespecificdata,thedesignhourfactorisdeterminedusingtheODOTPeakHourtoDesignHourcharts.Thesechartsarebasedonthefunctionalclassificationoftheroadway,thedayoftheweekandthemonththatthetrafficdatawascollected.

    Kfactors were determined using site specific data available on the ODOT Traffic Monitoring

    June 5, 2017 Page 22 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    ManagementSystem(TMMS).TheODOTTMMScancurrentlybefoundatthefollowingwebaddress:

    http://odot.ms2soft.com/tcds/tsearch.asp?loc=Odot&mod=

    ForCenterRidgeRoad(US20),datawasavailableatLocationID18318.ThelocationiseastofDoverCenterRoad.ThelocationhadanAADTof12,944vehiclesperdayin2016withaDHV30of1,275vehicles.TheavailabledatayieldsaKfactorof0.0985.

    ForDoverCenterRoad,datawasavailableatLocationID48618.ThelocationissouthofCenterRidgeRoad.ThelocationhadanAADTof13,509vehiclesperdayin2016withaDHV30of1,389vehicles.TheavailabledatayieldsaKfactorof0.1028.

    ThefollowingtabledetailsthecalculationofthedesignhourfactorsforCenterRidgeRoadandDoverCenterRoad:

    Table3.6DHVFactorCalculationsLOCATION

    PEAKHOURVOLUME

    ADT RATIO KFACTORDHV

    FACTOR*

    CenterRidgeRoad(US20) 1,691 18,280 0.0925 0.099 1.06

    DoverCenterRoad 1,322 14,062 0.0940 0.103 1.09* Iftheresultantvalue is lessthan1.00,thepeakhourvolumesshouldbeusedasthedesignhourvolumesmakingtheDHVfactor1.00.

    TheremainingroadwaysinthestudyareaweredeterminedtolackcomparablesitespecificdataascomparedtotheavailabledataandtheODOTK&DReportsinordertousethepreferredmethodofusingsitespecificdata.TheODOTPeakHourtoDesignHourchartswillbeusedtodeterminethedesignhourfactorsforthestudyarearoadways.

    GlenmoreDriveandWestownBoulevardareurbanlocalroadwaysthatwerecountedonaTuesdayinMay.Theroadwayshaveadesignhourfactorof1.17.

    June 5, 2017 Page 23 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    3.3 FutureTraffic

    NoBuildCondition

    In order to estimate the future traffic considering nonproject traffic conditions, the previouslydiscussedcalculationofdesignhourfactorsandgrowthratesforeachmovementwereappliedtotheexisting2017trafficvolumesshowninFigure2.4.

    Theestimated2019and2039NoBuildtrafficvolumesforthestudyareaareshowngraphicallyinFigures3.5and3.6,Pages25and26.Thistrafficistheexpectedtrafficiftheproposedelementaryschoolisnotconstructed,theNoBuildcondition.

    TheNoBuild traffic volumeshavebeen rounded to thenearest 10 to adhere to preferredODOTpractices.

    BuildCondition

    Inordertoestimatethefuturetrafficconsideringprojecttrafficconditions,thesumofthe2019and2039NoBuildvolumes,showninFigures3.5and3.6,wereaddedtothenewgeneratedtraffictoequalthefutureBuildanalysishourvolumes.

    Theestimated2019and2039BuildtrafficvolumesforthestudyareaareshowngraphicallyinFigures3.7and3.8,Pages27and28fortheproposedelementaryschool. Thesetrafficvolumesaretheexpectedvolumesiftheproposedelementaryschoolisconstructed,ortheBuildcondition.

    June 5, 2017 Page 24 TMS Engineers, Inc.

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    2019NoBuildWeekday

    TrafficVolumes

    Figure3.5

    Page25

    PMPeakHourTraffic

    AMPeakHourTrafficLEGEND

    XX

    (XX)

    80 (120)310 (290)170 (120)

    190 (120)680 (440)

    60 (90)

    120 (150)370 (300)130 (90)

    250 (100)380 (400)90 (80)

    30 (10)520 (640)

    10 (10)950 (550)

    10 (10)30 (10)

    30 (20)370 (430)

    10 (10)530 (510)

    70 (40)30 (20)

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    2039NoBuildWeekday

    TrafficVolumes

    Figure3.6

    Page26

    PMPeakHourTraffic

    AMPeakHourTrafficLEGEND

    XX

    (XX)

    100 (140)370 (340)200 (140)

    230 (140)820 (480)

    70 (110)

    140 (180)440 (360)150 (110)

    300 (120)450 (480)110 (100)

    30 (10)630 (770)

    10 (10)1140 (660)

    10 (10)30 (10)

    30 (20)440 (520)

    10 (10)640 (600)

    70 (40)30 (20)

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    2019BuildWeekdayTraffic

    Figure3.7

    Page27

    158 (153)316 (297)170 (120)

    287 (165)798 (453)124 (137)

    212 (194)379 (307)140 (98)

    30 (10)595 (707)

    10 (10)1094 (598)

    10 (10)30 (10)

    54 (43)424 (469)

    16 (17)616 (545)

    30 (30)40 (30)

    0 (0)100 (60)

    0 (0)30 (30)

    95 (64)35 (26)

    250 (100)483 (438)98 (88)

    990 (568)134 (40)

    556 (659)267 (106)

    69 (58)0 (0)

    990 (568)0 (0)

    823 (765)

    269 (137)

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    2039BuildWeekdayTraffic

    Figure3.8

    Page28

    178 (173)376 (347)200 (140)

    327 (185)938 (533)134 (157)

    232 (224)449 (367)150 (118)

    300 (120)553 (518)118 (108)

    30 (10)705 (837)

    10 (10)1284 (708)

    10 (10)30 (10)

    54 (43)494 (559)

    16 (17)726 (635)

    95 (64)35 (26)

    30 (30)40 (30)

    0 (0)100 (60)

    0 (0)30 (30)

    1180 (678)134 (40)

    666 (789)267 (106)

    69 (58)0 (0)

    1180 (678)0 (0)

    933 (895)

    269 (137)

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Chapter4TrafficAnalysis

    4.1 CapacityandLOSatStudyAreaIntersections

    IntersectioncapacityanalyseswereperformedatthestudyintersectionusingtheproceduresoutlinedinthecomputerizedversionoftheTransportationResearchBoardsHighwayCapacityManual6THEdition,HCM6E(HCS7,Release7.2).Thecapacityanalyseswereperformedinordertoestimatethemaximum amount of traffic that can be accommodated by a roadway facility while maintainingrecommendedoperationalqualities.Existing,NoBuild,andBuildanalysishourtrafficvolumeswereanalyzedtodeterminethelevelofservice(LOS)atthestudyareaintersections.

    Thecapacityanalysisproceduresprovideacalculatedaveragevehicledelay,whichisbasedontrafficvolumes,numberoflanes,typeoftrafficcontrol,channelization,grade,andpercentageoflargevehiclesin the traffic streamateach intersection. Theaveragedelay calculatedat an intersection is thenassignedagradeorlevelofservice(LOS)rangingfromLOSA,thebest,toLOSF,theworstbasedupondriverexpectation.TheintersectionLOSgradesasdefinedbytheTransportationResearchBoardareasfollows:

    Table4.1IntersectionLOS

    LOSUNSIGNALIZEDAVERAGEDELAYPERVEHICLE(sec)

    SIGNALIZEDAVERAGEDELAYPERVEHICLE(sec)

    A #10.0 #10.0B 10.1to15.0 10.1to20.0C 15.1to25.0 20.1to35.0D 25.1to35.0 35.1to55.0E 35.1to50.0 55.1to80.0F >50 >80

    Thecapacityanalysisproceduresandtheresultinglevelofservicegradesanddelaysarearecognizedtraffic engineering standard for measuring the efficiency of intersection operations by suchorganizationsastheInstituteofTransportationEngineers,AmericanAssociationofStateHighwayandTransportationOfficials,andtheOhioDepartmentofTransportation.

    June 5, 2017 Page 29 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    ExistingConditions2017CapacityAnalysis

    Analyseswereperformedfortheexisting2017conditions.Allanalyseswillassumethatthesignaltimingwouldbeoptimizedtobalancecriticallanedelaysatthesignalizedintersection.ThetrafficvolumesusedintheanalysiscanbeseeninFigure2.4.CopiesofthecapacityworksheetsareincludedinAppendixC.TheresultsoftheYear2017ExistingConditionsanalysisareshowninthefollowingtable:

    Table4.22017LevelsofService(ExistingConditions)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&DoverCenter TrafficSignal Intersection C(31.6) C(27.7)Eastbound C(33.3) C(27.7)Westbound C(32.0) C(28.3)Northbound C(32.3) C(27.0)Southbound C(27.5) C(27.6)

    CenterRidge&Glenmore StopSign EastboundLeft A(8.6) A(8.9)Southbound C(19.9) C(15.2)

    DoverCenter&Westown StopSign Eastbound C(18.8) C(17.5)NorthboundLeft A(8.1) A(8.3)

    (XX.X)=Averagevehicledelayinsecondspervehicle

    Thestudyareaintersectionsandapproachesareoperatingwithacceptablelevelsofserviceunderthe2017existingconditionsduringtheAMandPMpeakhours.

    June 5, 2017 Page 30 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    NoBuildConditions2019CapacityAnalysis

    Analyseswereperformedfortheprojected2019openingdayconditionsundertheNoBuildscenario.Theseanalyseswillbeused tocompare to theconditionsexpectedunder theBuildscenario. Allanalyseswillassumethatthesignaltimingwouldbeoptimizedtobalancecriticallanedelaysatthesignalizedintersection.ThetrafficvolumesusedintheanalysiscanbeseeninFigure3.5.CopiesofthecapacityworksheetsareincludedinAppendixD.TheresultsoftheYear2019NoBuildanalysisareshowninthefollowingtable:

    Table4.32019LevelsofService(NoBuildConditions)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&DoverCenter TrafficSignal Intersection D(35.5) C(29.1)Eastbound D(38.8) C(29.2)Westbound D(35.2) C(29.9)Northbound D(35.7) C(27.9)Southbound C(30.4) C(29.1)

    CenterRidge&Glenmore StopSign EastboundLeft A(8.8) A(9.0)Southbound C(23.4) C(16.5)

    DoverCenter&Westown StopSign Eastbound C(22.3) C(19.9)NorthboundLeft A(8.3) A(8.4)

    (XX.X)=Averagevehicledelayinsecondspervehicle

    Thestudyareaintersectionsandapproachesareexpectedtooperatewithacceptablelevelsofserviceundertheexpected2019NoBuildconditionsduringtheAMandPMpeakhours.

    June 5, 2017 Page 31 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    NoBuildConditions2039CapacityAnalysis

    Analyseswereperformedfortheprojected2039designyearconditionsundertheNoBuildscenario.Theseanalyseswillbeused tocompare to theconditionsexpectedunder theBuildscenario. Allanalyseswillassumethatthesignaltimingwouldbeoptimizedtobalancecriticallanedelaysatthesignalizedintersection.ThetrafficvolumesusedintheanalysiscanbeseeninFigure3.6.CopiesofthecapacityworksheetsareincludedinAppendixE.TheresultsoftheYear2039NoBuildanalysisareshowninthefollowingtable:

    Table4.42039LevelsofService(NoBuildConditions)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&DoverCenter TrafficSignal Intersection E(57.0) C(33.2)Eastbound E(61.4) C(32.9)Westbound E(60.8) C(33.7)Northbound E(59.3) C(33.6)Southbound D(42.5) C(32.7)

    CenterRidge&Glenmore StopSign EastboundLeft A(9.2) A(9.6)Southbound D(32.5) C(20.1)

    DoverCenter&Westown StopSign Eastbound D(30.6) D(25.6)NorthboundLeft A(8.5) A(8.7)

    (XX.X)=Averagevehicledelayinsecondspervehicle

    TheintersectionofCenterRidgeRoadandDoverCenterRoadwasdeterminedtobeoperatingwithpoorlevelsofserviceandhighdelayundertheexpected2039NoBuildconditionsduringtheAMpeakhour.Theremainingintersectionsweredeterminedtobeoperatingwithacceptablelevelsofserviceundertheexpected2039NoBuildconditionsduringtheAMandPMpeakhours.

    June 5, 2017 Page 32 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Inordertodeterminewhatmitigationwouldbenecessaryto improvethe levelsofserviceat theintersectionofCenterRidgeRoadandDoverCenterRoad,certainimprovementsweretestedwithfurthercapacityanalyses.Thefollowingimprovementsarerecommendedtomitigatetheanticipatedpoorlevelsofserviceunderthe2039NoBuildconditions:

    # Constructawestboundrightturnlane.# Constructanorthboundrightturnlane.

    Thefollowingtableshowsthecapacityanalysisresultsofimplementingtheproposedimprovements.CopiesofthecapacityworksheetsfortheimprovedintersectionareinincludedinAppendixF.

    Table4.52039LevelsofService(NoBuildConditionsRecommendedImprovements)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&DoverCenter TrafficSignal Intersection C(34.2) C(29.9)Eastbound C(39.0) C(32.9)Westbound C(26.4) C(28.4)Northbound C(30.8) C(26.2)Southbound D(39.8) C(31.8)

    (XX.X)=Averagevehicledelayinsecondspervehicle

    June 5, 2017 Page 33 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    BuildCondition2019CapacityAnalysis

    Analyseswereperformedfortheprojected2019openingdayBuildconditions.TheanalyseswillbeusedtodeterminethefuturelevelsofserviceatthestudyintersectionsundertheanticipatedBuildconditions.Allanalyseswillassumethatthesignaltimingwouldbeoptimizedtobalancecriticallanedelays at the signalized intersection. The intersections analyzed in this section only include theintersectionsthatdonotprovidedirectaccesstothedevelopmentsite.ThetrafficvolumesusedintheanalysiscanbeseeninFigure3.7.CopiesofthecapacityworksheetsareincludedinAppendixG.Theresultsofthe2019Buildanalysesareshowninthefollowingtables:

    Table4.62019LevelsofService(BuildConditions)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&DoverCenter TrafficSignal Intersection D(52.4) C(31.6)Eastbound D(49.5) C(32.3)Westbound D(53.1) C(31.5)Northbound E(56.0) C(30.5)Southbound D(52.8) C(31.8)

    CenterRidge&Glenmore StopSign EastboundLeft A(9.0) A(9.3)Southbound D(29.4) C(18.1)

    DoverCenter&Westown StopSign Eastbound E(46.9) D(34.1)NorthboundLeft A(9.1) A(9.4)

    (XX.X)=Averagevehicledelayinsecondspervehicle

    ThenorthboundapproachattheintersectionofCenterRidgeRoadandDoverCenterisexpectedtooperate with a poor levelofservice during the AM peak hour under the expected 2019 Buildconditions.

    TheeastboundapproachattheintersectionofDoverCenterRoadandWestownBoulevardisexpectedto operatewith a poor levelofservice during theAMpeakhour under the expected2019Buildconditions.

    June 5, 2017 Page 34 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    A comparisonwas performed to show the incremental effects on the capacity of the study areaintersections due to the development of the proposed elementary school and to identify whereimprovementsmaybenecessarytoaccommodateBuildtraffic.

    ThefollowingtablesshowasidebysidecomparisonoftheBuildversusNoBuildconditionsforthe2019AMandPMpeakhours.

    Table4.72019NoBuildvsBuildScenarioAMPeakHourComparisonTable

    LOCATION(TRAFFICCONTROL)

    MOVEMENTNOBUILD

    LOS(DELAY)BUILD

    LOS(DELAY)DIFFERENCE

    +/

    CenterRidge&DoverCenter Intersection D(35.5) D(52.4) +16.9(TrafficSignal) Eastbound D(38.8) D(49.5) +10.7

    Westbound D(35.2) D(53.1) +17.9Northbound D(35.7) E(56.0) +20.3Southbound C(30.4) D(52.8) +22.4

    CenterRidge&Glenmore EastboundLeft A(8.8) A(9.0) +0.2(StopSign) Southbound C(23.4) D(29.4) +6.0DoverCenter&Westown Eastbound C(22.3) E(46.9) +24.6(StopSign) NorthboundLeft A(8.3) A(9.1) +0.8

    (XX.X)=Averagevehicledelayinsecondspervehicle

    The2019AMpeakhourcomparisontablesindicatetheapproachandintersectiondelaysareimpactedwiththeadditionofthedevelopmentgeneratedtrafficunderthe2019AMpeakhourconditions.TheintersectionofCenterRidgeRoadandDoverCenterRoadexperiencesincreaseddelayinexcessof20secondsforthenorthboundandsouthboundapproaches.ThenorthboundapproachisalsoexpectedtodegradetolevelofserviceE.TheeastboundapproachattheintersectionofDoverCenterRoadandWestownBoulevardisexpectedtodegradetoalevelofserviceEundertheexpectedBuildconditionsduringtheAMpeakhour.Thepoorlevelofservicecanbeattributedtothelackofadequategapsinthenorthsouth through traffic streamand the site generated school bus traffic on theWestownBoulevardapproach.

    June 5, 2017 Page 35 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Table4.82019NoBuildvsBuildScenarioPMPeakHourComparisonTable

    LOCATION(TRAFFICCONTROL)

    MOVEMENTNOBUILD

    LOS(DELAY)BUILD

    LOS(DELAY)DIFFERENCE

    +/

    CenterRidge&DoverCenter Intersection C(29.1) C(31.6) +2.5(TrafficSignal) Eastbound C(29.2) C(32.3) +3.1

    Westbound C(29.9) C(31.5) +1.6Northbound C(27.9) C(30.5) +2.6Southbound C(29.1) C(31.8) +2.7

    CenterRidge&Glenmore EastboundLeft A(9.0) A(9.3) +0.3(StopSign) Southbound C(16.5) C(18.1) +1.6DoverCenter&Westown Eastbound C(19.9) D(34.1) +14.2(StopSign) NorthboundLeft A(8.4) A(9.4) +1.0

    (XX.X)=Averagevehicledelayinsecondspervehicle

    The2019PMpeakhourcomparisontablesindicatetheapproachandintersectiondelaysareonlyminimallyimpactedwiththeadditionofthedevelopmentgeneratedtrafficunderthe2019PMpeakhourconditions.TheintersectionandapproachlevelsofserviceremainunchangedfromtheNoBuildtoBuildconditionswiththeexceptionoftheeastboundapproachattheintersectionofDoverCenterRoadandWestownBoulevard.ThelevelofserviceisexpectedtodegradefromanLOSCtoandLOSD.

    BasedontheseresultsimprovementsarenecessarytotheintersectionsofDoverCenterRoadatCenterRidgeRoadandWestownBoulevardwith the sitegenerated trafficunder the2019openingyearconditions.

    Inordertodeterminewhatmitigationwouldbenecessarytoimprovethedelayexperiencedandthelevelsofservice at these intersections, certain improvements were tested with further capacityanalyses.Thefollowingimprovementsweredeterminedtomitigatetheanticipatedpoorlevelsofserviceand/orlessenthedelayexperiencedunderthe2019Buildconditions:

    CenterRidgeRoad&DoverCenterRoad# Constructawestboundrightturnlane.

    June 5, 2017 Page 36 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    DoverCenterRoad&WestownBoulevard# Stripetheeastboundapproachforseparateleftandrightturnlanes.OR# Installaroundabout.OR# Installtrafficsignalcontrol.

    TheexistingwidthofWestownBoulevardatDoverCenterRoadisapproximately36feetwide.Theroadwaycouldbestripedforthree12footlanes.Thelaneswouldconsistofonewestboundingresslane,oneeastboundleftturnlane,andoneeastboundrightturnlane. Itshouldbenotedthattheaddition of a second lanemay create a situationwhere side by side turning vehicles stoppedonWestownBoulevardmayblocktheothervehiclesviewofoncomingtrafficalongDoverCenterRoad.

    TheconstructionofaroundaboutattheintersectionwouldlikelyrequireroadwideningonDoverCenterRoadtoaccommodatethediameteroftheroundaboutandthesplitterislandsonthenorthandsouthapproaches.Theseimprovementswouldlikelyrequirethereplacementofthebridgeonthesouthapproachtoaccommodatethewidening.Theconstructionofaroundaboutandthereplacementofthebridgewouldresultinthisbeingahighcostimprovement.

    Thefollowingtableshowsthecapacityanalysisresultsofimplementingtheproposedimprovements.CopiesofthecapacityworksheetsfortheimprovedintersectionsareinincludedinAppendixH.

    June 5, 2017 Page 37 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Table4.92019LevelsofService(BuildConditionsRecommendedImprovements)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&DoverCenter TrafficSignal Intersection D(43.3) C(30.4)Eastbound D(49.4) C(32.0)Westbound C(27.7) C(27.3)Northbound D(49.8) C(30.5)Southbound D(44.6) C(31.8)

    DoverCenter&Westown StopSign EastboundLeft E(49.0) E(37.6)(EBRTL&LTL) EastboundRight C(22.3) B(12.6)

    Eastbound E(41.8) D(30.4)Northbound A(9.1) A(9.4)

    DoverCenter&Westown Roundabout Intersection A(8.8) A(8.0)Eastbound A(7.7) A(8.0)Northbound B(10.5) A(8.6)Southbound A(7.0) A(7.4)

    DoverCenter&Westown TrafficSignal Intersection C(20.4) C(20.3)Eastbound C(22.0) C(20.7)Northbound C(21.9) C(20.7)Southbound B(18.0) B(19.7)

    (XX.X)=Averagevehicledelayinsecondspervehicle

    TheinstallationofaroundaboutortrafficsignalcontrolattheintersectionofDoverCenterRoadandWestownBoulevardisexpectedtoallowtheintersectiontooperatewithlevelofserviceCorbetter.

    ThestripingoftheeastboundapproachforseparateleftandrightturnlanesisstillexpectedtoresultinlevelofserviceE,howevertheoveralldelayhasbeenreducedandwiththeexclusiveleftturnlanetherightturnvehicleswillnotbeblockedbyavehiclewaitingtomakealeftturn.

    June 5, 2017 Page 38 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    TrafficSignalWarrantAnalysisDoverCenterRoad&WestownBoulevard2019BuildConditions

    Theanticipated2019BuildtrafficconditionsattheintersectionofDoverCenterRoadandWestownBoulevardwereanalyzedandcomparedtothecriteriaestablishedbytheOhioManualofUniformTrafficControlDevicesandprofessionalengineeringjudgementtodetermineiftrafficsignalcontroliswarrantedattheintersection.AllofthedatacollectedanddeterminedforthisstudywasanalyzedandcomparedtothethresholdsestablishedbythecriteriafromtheOMUTCD.Warrants19wereevaluatedforthisanalysisoftheexpected2019Buildconditions.

    Inorder todetermine if the2019anticipatedbuildconditionsareexpected tomeetoneof thesewarrants,theexistinghourlyvolumesweremultipliedbythepreviouslydiscussedgrowthratetodeterminethefuture2019Buildconditions.Thesitegeneratedtrafficwasaddedtothepeakhours.Noadditionaltrafficwasaddedtotheremaininghours.Itshouldbenotedthatthedesignhourfactorshavenotbeenincludedinthesignalwarrantvolumecalculations.

    BasedupontheevaluationofthewarrantsestablishedbytheOhioManualofUniformTrafficControlDevices,weconcludethatatrafficsignalisnotjustifiedattheintersectionofDoverCenterRoadandWestownBoulevardasrequiredby theOhioRevisedCodebasedupon theexpected2019Buildconditions.CopiesofthetrafficsignalwarrantanalysisworksheetscanbefoundinAppendixI.

    June 5, 2017 Page 39 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    BuildCondition2039CapacityAnalysis

    Analyseswereperformedfortheprojected2039designyearBuildconditionsundertheSitePlanscenario.Theanalyseswillbeusedtodeterminethefuturelevelsofserviceatthestudyintersectionsunder theanticipatedbuildconditions. Allanalyseswillassumethat thesignal timingwouldbeoptimizedtobalancecriticallanedelaysatthesignalizedintersection.Theintersectionsanalyzedinthissectiononlyincludetheintersectionsthatdonotprovideaccesstothedevelopment.ThetrafficvolumesusedintheanalysiscanbeseeninFigure3.8.CopiesofthecapacityworksheetsareincludedinAppendixJ.Theresultsofthe2039Buildanalysesareshowninthefollowingtable:

    Table4.102039LevelsofService(BuildConditions)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&DoverCenter TrafficSignal Intersection E(61.1) D(35.1)Eastbound F(85.0) D(40.9)Westbound C(32.5) C(31.0)Northbound D(44.7) C(29.2)Southbound E(71.6) D(38.4)

    CenterRidge&Glenmore StopSign EastboundLeft A(9.5) A(9.9)Southbound E(42.8) C(22.4)

    DoverCenter&Westown StopSign Eastbound F(87.3) F(50.3)NorthboundLeft A(9.4) A(9.7)

    (XX.X)=Averagevehicledelayinsecondspervehicle

    ThestudyareaintersectionsareexpectedtooperatewithacceptablelevelsofserviceduringtheAMandPMpeakhoursundertheexpected2039Buildconditions.

    June 5, 2017 Page 40 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    A comparisonwas performed to show the incremental effects on the capacity of the study areaintersections due to the development of the proposed development and to identify whereimprovementsmaybenecessarytoaccommodateBuildtraffic.

    ThefollowingtablesshowasidebysidecomparisonoftheBuildversusNoBuildconditionsforthe2039AMandPMpeakhours.

    Table4.112039NoBuildvsBuildScenarioAMPeakHourComparisonTable

    LOCATION(TRAFFICCONTROL)

    MOVEMENTNOBUILD

    LOS(DELAY)BUILD

    LOS(DELAY)DIFFERENCE

    +/

    CenterRidge&DoverCenter Intersection C(34.2) E(61.1) +26.9(TrafficSignal) Eastbound C(39.0) F(85.0) +46.0

    Westbound C(26.4) C(32.5) +6.1Northbound C(30.8) D(44.7) +13.9Southbound D(39.8) E(71.6) +31.8

    CenterRidge&Glenmore EastboundLeft A(9.2) A(9.5) +0.3(StopSign) Southbound D(32.5) E(42.8) +10.3DoverCenter&Westown Eastbound D(25.4) F(87.3) +61.9(StopSign) NorthboundLeft A(8.5) A(9.4) +0.9

    (XX.X)=Averagevehicledelayinsecondspervehicle

    The2039AMpeakhourcomparisontableindicatesthattheapproachandintersectiondelaysareimpactedwiththeadditionofthedevelopmentgeneratedtrafficunderthe2039peakhourconditions.TheintersectionofCenterRidgeRoadandDoverCenterRoadexperiencesincreaseddelayinexcessof 20 seconds for the eastbound and southbound approaches. The eastbound approach at theintersectionofDoverCenterRoadandWestownBoulevardisexpectedtodegradetoalevelofserviceFundertheexpectedBuildconditionsduringtheAMpeakhour.ThepoorlevelofservicecanbeattributedtothelackofadequategapsinthenorthsouththroughtrafficstreamandthesitegeneratedschoolbustrafficontheWestownBoulevardapproach.

    June 5, 2017 Page 41 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Table4.122039NoBuildvsBuildScenarioPMPeakHourComparisonTable

    LOCATION(TRAFFICCONTROL)

    MOVEMENTNOBUILD

    LOS(DELAY)BUILD

    LOS(DELAY)DIFFERENCE

    +/

    CenterRidge&DoverCenter Intersection C(29.9) D(35.1) +5.2(TrafficSignal) Eastbound C(32.9) D(40.9) +8.0

    Westbound C(28.4) C(31.0) +2.4Northbound C(26.2) C(29.2) +3.0Southbound C(31.8) D(38.4) +6.6

    CenterRidge&Glenmore EastboundLeft A(9.6) A(9.9) +0.3(StopSign) Southbound C(20.1) C(22.4) +2.3DoverCenter&Westown Eastbound C(21.4) F(50.3) +28.9(StopSign) NorthboundLeft A(8.7) A(9.7) +1.0

    (XX.X)=Averagevehicledelayinsecondspervehicle

    The2039PMpeakhourcomparisontablesindicatetheapproachandintersectiondelaysareonlyminimallyimpactedwiththeadditionofthedevelopmentgeneratedtrafficunderthe2019PMpeakhourconditionswiththeexceptionoftheeastboundapproachattheDoverCenterRoadandWestownBoulevardintersection.

    Basedontheseresultsimprovementsarenecessarytoallthreestudyareaintersectionsduetothesitegeneratedtrafficunderthe2039openingyearconditions.

    Inordertodeterminewhatmitigationwouldbenecessarytoimprovethelevelsofserviceattheseintersections, certain improvements were tested with further capacity analyses. The followingimprovementsarerecommendedtomitigatetheanticipatedpoorlevelsofserviceunderthe2039Buildconditions:

    CenterRidgeRoad&DoverCenterRoad# Constructasouthboundrightturnlane.

    June 5, 2017 Page 42 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    CenterRidgeRoad&GlenmoreDrive# Constructanexclusivesouthboundleftturnlane.

    Theadditionofaseparateleftturnlaneisstillexpectedtoresultinapoorlevelofservice,howevertheoveralldelaywillbereducedandwiththeexclusiveleftturnlanetherightturnvehicleswillnotbeblockedbyavehiclewaitingtomakealeftturn.Itshouldbenotedthattheadditionofasecondlanemay create a situationwhere side by side turning vehiclesmay block the other vehicles viewofoncomingtraffic.

    TheintersectionisnotexpectedtomeettheminimumsidestreetvolumethresholdsfortheOMUTCDtrafficsignalwarrantcriteria.GlenmoreDrivehasapeakvolumeof50vehiclesinthe5:00PMto6:00PMhour.TheminimumsidestreetvolumeforWarrant1(8HourVehicularVolume)is150vehiclesforConditionAand75vehiclesforCondition.TheminimumsidestreetvolumeforWarrant2(4HourVehicularVolume)is80vehicles.

    DoverCenterRoad&WestownBoulevard# Stripetheeastboundapproachforseparateleftandrightturnlanes.OR# Installaroundabout.OR# Installtrafficsignalcontrol.

    TheexistingwidthofWestownBoulevardatDoverCenterRoadisapproximately36feetwide.Theroadwaycouldbestripedforthree12footlanes.Thelaneswouldconsistofonewestboundingresslane,oneeastboundleftturnlane,andoneeastboundrightturnlane.Thestripingoftheeastboundapproachforseparateleftandrightturnlanesisstillexpectedtoresultinapoorlevelofservice,howevertheoveralldelaywillbereducedandwiththeexclusiveleftturnlanetherightturnvehicleswillnotbeblockedbyavehiclewaitingtomakealeftturn.

    TheconstructionofaroundaboutattheintersectionwouldlikelyrequireroadwideningonDoverCenterRoadtoaccommodatethediameteroftheroundaboutandthesplitterislandsonthenorthandsouthapproaches.Theseimprovementswouldlikelyrequirethereplacementofthebridgeonthesouthapproachtoaccommodatethewidening.Theconstructionofaroundaboutandthereplacementofthebridgewouldresultinthisbeingahighcostimprovement.

    Thefollowingtableshowsthecapacityanalysisresultsofimplementingtheproposedimprovements.CopiesofthecapacityworksheetsfortheimprovedintersectionsareinincludedinAppendixK.

    June 5, 2017 Page 43 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Table4.132039LevelsofService(BuildConditionsRecommendedImprovements)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&DoverCenter TrafficSignal Intersection D(40.7) C(28.2)Eastbound D(50.3) C(29.9)Westbound C(27.6) C(25.0)Northbound D(42.6) C(30.0)Southbound D(37.6) C(27.4)

    CenterRidge&Glenmore StopSign Eastbound A(9.5) A(9.9)SouthboundLeft F(51.2) D(32.0)SouthboundRight B(11.1) B(11.7)

    Southbound E(41.2) C(21.9)DoverCenter&Westown StopSign EastboundLeft F(87.9) F(55.2)(EBRTL&LTL) EastboundRight D(29.5) D(26.7)

    Eastbound F(72.1) E(47.0)Northbound A(9.4) A(9.7)

    DoverCenter&Westown Roundabout Intersection B(10.7) A(9.3)Eastbound A(8.5) A(9.1)Northbound B(13.3) B(10.1)Southbound A(7.8) A(8.5)

    DoverCenter&Westown TrafficSignal Intersection C(20.8) C(20.9)Eastbound C(22.8) C(21.2)Northbound C(23.0) C(21.4)Southbound B(17.2) C(20.3)

    (XX.X)=Averagevehicledelayinsecondspervehicle

    June 5, 2017 Page 44 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    TrafficSignalWarrantAnalysisDoverCenterRoad&WestownBoulevard2039BuildConditions

    Theanticipated2039BuildtrafficconditionsattheintersectionofDoverCenterRoadandWestownBoulevardwereanalyzedandcomparedtothecriteriaestablishedbytheOhioManualofUniformTrafficControlDevicesandprofessionalengineeringjudgementtodetermineiftrafficsignalcontroliswarrantedattheintersection.AllofthedatacollectedanddeterminedforthisstudywasanalyzedandcomparedtothethresholdsestablishedbythecriteriafromtheOMUTCD.Warrants19wereevaluatedforthisanalysisoftheexpected2039Buildconditions.

    Inorder todetermine if the2039anticipatedbuildconditionsareexpected tomeetoneof thesewarrants,theexistinghourlyvolumesweremultipliedbythepreviouslydiscussedgrowthratetodeterminethefuture2039Buildconditions.Thesitegeneratedtrafficwasaddedtothepeakhours.Noadditionaltrafficwasaddedtotheremaininghours.Itshouldbenotedthatthedesignhourfactorshavenotbeenincludedonthesignalwarrantvolumecalculations.

    BasedupontheevaluationofthewarrantsestablishedbytheOhioManualofUniformTrafficControlDevices,weconcludethatatrafficsignalisnotjustifiedattheintersectionofDoverCenterRoadandWestownBoulevardasrequiredby theOhioRevisedCodebasedupon theexpected2039Buildconditions.CopiesofthetrafficsignalwarrantanalysisworksheetscanbefoundinAppendixI.

    June 5, 2017 Page 45 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    4.2 Capacity&LOSatDevelopmentAccessIntersections

    CapacityanalyseswereperformedfortheintersectionslocatedalongCenterRidgeRoadthatprovideaccesstotheproposedelementaryschoolsiteusingtheproceduresoutlined inthecomputerizedversionof theTransportationResearchBoards HighwayCapacityManual6THEdition,HCM6E(HCS7,Release7.2).Theinitialoperatingconditionsfortheproposedintersectionswillincludetrafficsignalcontrolatthewestaccesslocationandastopsigncontrolledrestrictedaccessdrivewayattheeastaccesslocation.

    BuildCondition2019CapacityAnalysis

    Analyseswereperformedfortheprojected2019openingdayconditionsundertheBuildscenariotodeterminethefuturelevelofserviceattheintersectionswhereaccessisavailabletotheelementaryschoolalongCenterRidgeRoad.Theresultsofthe2019Buildanalysesareshowninthefollowingtable.CopiesofthecapacityworksheetsareincludedinAppendixL.

    Table4.142019LevelsofService(BuildConditionsAccessLocations)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&WestAccess TrafficSignal Intersection C(27.0) C(23.1)Eastbound C(33.5) C(28.4)Westbound B(17.9) B(18.7)Northbound C(26.8) C(22.5)Southbound C(33.8) C(28.4)

    CenterRidge&EastAccess StopSign Northbound C(22.7) B(11.7)(XX.X)=Averagevehicledelayinsecondspervehicle

    TheintersectionswhereaccesstothedevelopmentisavailablealongCenterRidgeRoadareexpectedtooperatewithacceptablelevelsofserviceunderthe2019BuildconditionsduringtheAMandPMpeakhours.TheanalysesdeterminedthatanexclusivewestboundleftturnlaneattheproposedWestAccessintersectionwouldbenecessarytoaccommodatetheexpectedsitegeneratedtrafficvolumes.

    June 5, 2017 Page 46 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    TrafficSignalWarrantAnalysisCenterRidgeRoad&WestAccess2019BuildConditions

    Theanticipated2019BuildtrafficconditionsattheintersectionofCenterRidgeRoadandtheproposedWestAccessdrivewaywereanalyzedandcomparedtothecriteriaestablishedbytheOhioManualofUniformTrafficControlDevicesandprofessionalengineeringjudgementtodetermineiftrafficsignalcontroliswarrantedattheintersection.AllofthedatacollectedanddeterminedforthisstudywasanalyzedandcomparedtothethresholdsestablishedbythecriteriafromtheOMUTCD.Warrant3wasevaluatedforthisanalysisoftheexpected2019Buildconditions.

    Inorder todetermine if the2019anticipatedbuildconditionsareexpected tomeetoneof thesewarrants,theexistinghourlyvolumesweremultipliedbythepreviouslydiscussedgrowthratetodeterminethefuture2019Buildconditions.Thesitegeneratedtrafficwasaddedtothepeakhours.Itshouldbenotedthatthedesignhourfactorshavenotbeenincludedonthesignalwarrantvolumecalculations.

    BasedupontheevaluationofthewarrantsestablishedbytheOhioManualofUniformTrafficControlDevices,weconcludethatatrafficsignalisjustifiedattheintersectionofCenterRidgeRoadandtheproposedWestAccessdrivewayasrequiredbytheOhioRevisedCodebasedupontheexpected2019Buildconditions.CopiesofthetrafficsignalwarrantanalysisworksheetscanbefoundinAppendixI.

    June 5, 2017 Page 47 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    BuildCondition2039CapacityAnalysis

    Analyseswereperformedfortheprojected2039designyearconditionsundertheBuildscenariotodeterminethefuturelevelofserviceattheintersectionswhereaccessisavailabletotheelementaryschoolalongCenterRidgeRoad.Theresultsofthe2039Buildanalysesareshowninthefollowingtable.CopiesofthecapacityworksheetsareincludedinAppendixM.

    Table4.152039LevelsofService(BuildConditionsAccessLocations)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&WestAccess TrafficSignal Intersection C(28.7) C(21.7)Eastbound D(36.7) C(26.8)Westbound B(17.0) B(17.4)Northbound C(30.1) C(20.5)Southbound D(37.5) C(26.9)

    CenterRidge&EastAccess StopSign Northbound D(31.2) B(12.5)(XX.X)=Averagevehicledelayinsecondspervehicle

    TheintersectionswhereaccesstothedevelopmentisavailablealongCenterRidgeRoadareexpectedtooperatewithacceptablelevelsofserviceunderthe2039BuildconditionsduringtheAMandPMpeakhours.

    June 5, 2017 Page 48 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    4.3 AuxiliaryTurningLaneWarrantAnalysis

    TheODOTLocationandDesignManual,Volume1andtheAccessManagementManualrecommendthattheneedforauxiliaryturnlanesatunsignalizedintersectionsbedeterminedbyusingtheAuxiliaryLane Graphs found in Section 4016 of the Location and Design Manual, Volume 1. Thisrecommendationismadeforthefreeflowapproachesatunsignalizedintersections.Section401.6.3oftheODOTLocationandDesignManualstatesthat:

    Todeterminethenumberanduseofrightandleftturnlanes,intersectioncapacityanalysisproceduresofthecurrenteditionoftheHighwayCapacityManualshouldbeused.Forunsignalizedintersections,rightandleftturnlanesmayalsobeneedediftheymeetwarrantsprovidedinFigures4016a,b,candd.Thewarrantsapplyonlytothefreeflowapproachoftheunsignalizedintersection.

    ItistheintentofthisreporttoevaluatetheneedforanexclusiverightturnlaneonCenterRidgeRoadattheEastAccess.

    Theneedforanexclusiveturnlaneattheintersectionwasbasedonafourlaneroadwaywithapostedspeedlimitof35milesperhourforCenterRidgeRoad.

    ThefollowingtableshowstheresultsoftheanalysisoftheneedforanexclusiverightturnlaneatCenterRidgeRoadandtheproposedEastAccessdriveway.CopiesoftheODOTturnlanewarrantgraphscanbeseeninAppendixN.

    Table4.16TurningLaneWarrantAnalysisCenterRidgeRoad&ProposedEastAccess

    TURNLANE&LOCATION2019 2039

    AMPEAK PMPEAK AMPEAK PMPEAK

    [email protected] NO NO NO NO

    TheresultsoftheturnlanewarrantanalysisindicatethatanexclusiveeastboundrightturnlanewasshowntonotbewarrantedonCenterRidgeRoadattheproposedEastAccessundertheexpected2019and2039Buildconditions.

    June 5, 2017 Page 49 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    4.4 TurnLaneLengthAnalysis

    An analysis was performed to determine the necessary turn lane storage length in order toaccommodatetherecommendedturnlanesundertheYear2039peakhourBuildconditions.

    TheanalysiswasperformedinaccordancewiththeprocedurerecommendedbytheOhioDepartmentofTransportationintheirLocationandDesignManual,Volume1,Section401.TheODOTcriteriaandproceduresarefurnishedinAppendixO.

    Therecommendedmaximumleftturnlanelengthis600feetandtherightturnlanelengthis800feet,howeverifthecalculatedturnlanelengthislowerthanthesevaluesthemaximumlengthwillnotbeapplicable.

    Thefollowingtablesshowtheresultsoftheanalysisbaseduponthehighestanticipatedmovementvolumesattheintersections.

    Table4.17TurnLaneLengthAnalysisCenterRidgeRoad&DoverCenterRoad

    MovementDirection

    DHV No.ofLanes

    Cycles/

    Hour

    AverageVeh/Cycle/Lane

    DesignSpeed(mph)

    Fig.40110

    StorageLength(ft)

    Fig.4019Condition Backup

    Length(ft)

    TurnLane

    Length*(ft)

    A* B* C*

    WBRT 300 1 36 8.3 40 350 466 466*

    WBT 553 2 36 7.7 40 325

    NBRT 150 1 36 4.2 40 200 311 475*

    NBT 449 1 36 12.5 40 475

    SBRT 178 1 36 4.9 40 200 311 400*

    SBT 376 1 36 10.4 40 400 *Includes50'taper

    June 5, 2017 Page 50 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Table4.18TurnLaneLengthAnalysisCenterRidgeRoad&ProposedWestAccess

    MovementDirection

    DHV No.ofLanes

    Cycles/

    Hour

    AverageVeh/Cycle/Lane

    DesignSpeed(mph)

    Fig.40110

    StorageLength(ft)

    Fig.4019Condition Backup

    Length(ft)

    TurnLane

    Length*(ft)

    A* B* C*

    WBLT 267 1 36 7.4 40 325 436 436*

    WBT/RT 789 2 36 11.0 40 400 *Includes50'taper

    June 5, 2017 Page 51 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    4.5 AlternativeScenarioAnalysis

    ThepreviousanalysesindicatedthattheintersectionofCenterRidgeRoadandDoverCenterRoadwasexpectedtorequireseveralimprovementsinordertomitigatetheimpactofthesitegeneratedtraffic.TheintersectionsofCenterRidgeRoad/GlenmoreDriveandDoverCenterRoad/WestownBoulevardweredeterminedtooperatewithpoorlevelsofserviceasaresultofthesitegeneratedtrafficandwerenotabletobefullymitigatedwithoutunwarrantedimprovementsorhighcostimprovements.Forthesestatedreasonsanalternativescenariowasdevelopedtodeterminetheimpactontheadjacentstudyareaintersectionsascomparedtotheproposedscenariodetailedonthesiteplan(Figure1.2).Theanalysisofthisscenariowillbebasedonthe2039twentyyeardesigntrafficvolumes.

    Thesitegeneratedschoolbus trafficwill continue touseabusonlyaccessdrivealongWestownBoulevardasdetailedonthesiteplan(Figure1.2).TherewillbenochangestotheschoolbusvolumesordistributionthroughoutthestreetnetworkasdetailedinFigure3.4.

    TheproposedWestAccessdrivewillberelocatedtothewestsothatitalignsdirectlyacrossfromGlenmoreDrive.TheWestaccessdrivewouldthenbeextendedtotheculdesacatthewestofendofWestownBoulevard.TheintentwouldbetoallowthevehiclescomingfromthesouthalongDoverCenterRoadtoaccessthesitewithouthavingtomakeanorthboundleftturnattheCenterRidgeRoadandDoverCenterRoadintersection.VehiclesexitingthesitetothesouthalongDoverCenterRoadwouldthenalsobeabletoavoidtheintersectionofCenterRidgeRoadandDoverCenterRoadaswell.TheproposedsignalwouldalsobeabletoservetheGlenmoreDrivetrafficandtheWestlakeUnitedMethodistChurchwouldbeabletoaccessthetrafficsignalviatheiraccessdrivesalongGlenmoreDrive.

    TheproposedEastaccessdrivewillremainasdetailedonthesiteplanasarestrictedaccessdriveway.

    June 5, 2017 Page 52 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    TheassignmentsoftheestimatednewgeneratedpassengervehicletrafficfortheproposedelementaryschoolareshowngraphicallyinFigure4.1,Page54.TheassignmentsoftheestimatednewgeneratedschoolbustrafficfortheproposedelementaryschoolwasshowngraphicallyinFigure3.4,Page19,astheschoolbusdistributionhasnotbeenalteredinthisscenario.

    Inordertoestimatethefuturetrafficconsideringthedescribedalternativeconditions,thesumofthe2039NoBuildvolumes,showninFigure3.6,wereaddedtothenewgeneratedtraffic(Figures3.4&4.1)toequalthefutureBuildpeakhourvolumes.

    Theestimated2039BuildtrafficvolumesforthealternativescenarioareshowngraphicallyinFigure4.2,Page55fortheproposedelementaryschool.

    June 5, 2017 Page 53 TMS Engineers, Inc.

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    NewGeneratedTrafficPassengerVehiclesAlternateScenario

    Figure4.1

    Page54

    NEWGENERATEDTRAFFIC

    TOTALTRIPS

    ENTER

    EXIT

    AM739

    401

    338

    PM341

    146

    195

    LEGENDAMPeakHourTripsXX

    RED=EnteringVolumesGREEN=ExitingVolumes

    PMPeakHourTrips(XX)

    134 (40)

    215 (98)

    78 (33)

    86 (35)

    86 (35)

    69 (58)181 (71)

    103 (38)

    97 (45)118 (53)

    54 (39)

    181 (71)

    86 (35)

    54 (39)

    54 (39)

  • ElementarySchoolWestlake,Ohio

    TrafficImpactStudy

    DoverCenterRoad

    CenterRidgeRoad

    CenterRidgeRoad

    GlenmoreDrive

    PROPOSEDELEMENTARYSCHOOL

    NOTTOSCALE

    ProposedEastAccess

    ProposedWestAccess

    ProposedSouthAccess

    DoverCenterRoad

    WestownBoulevard

    2039BuildWeekdayTraffic

    Figure4.2

    Page55

    178 (173)376 (347)200 (140)

    327 (185)938 (533)

    80 (118)

    146 (189)449 (367)150 (118)

    300 (120)553 (518)118 (108)

    54 (43)440 (520)

    102 (52)640 (600)

    95 (64)69 (65)

    30 (30)126 (65)

    0 (0)154 (99)

    0 (0)30 (30) 1180 (678)

    0 (0)

    847 (860)

    215 (98)86 (35)40 (30)

    0 (0)100 (60)

    0 (0)54 (39)

    10 (10)0 (0)30 (10)

    10 (10)1150 (668)

    134 (40)

    69 (58)0 (0)0 (0)

    30 (10)636 (779)181 (71)

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Analyseswereperformedfortheprojected2039designyearBuildconditionsunderthealternativescenario.Thisanalysiswillbeusedtodeterminethefuturelevelsofserviceatthestudyintersectionsunder theanticipatedbuildconditions. All analysiswill assume that thesignal timingwouldbeoptimizedtobalancecriticallanedelaysatthesignalizedintersection.ThetrafficvolumesusedinthisanalysiscanbeseeninFigure4.1.CopiesofthecapacityworksheetsareincludedinAppendixP.Theresultsofthe2039Buildanalysesareshowninthefollowingtables:

    Table4.192039LevelsofService(BuildConditionsAlternativeScenario)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    CenterRidge&DoverCenter TrafficSignal Intersection D(36.8) C(27.4)Eastbound D(44.6) C(29.4)Westbound C(29.3) C(25.2)Northbound D(36.1) C(28.4)Southbound C(33.1) C(26.4)

    CenterRidge&Glenmore/West TrafficSignal Intersection C(22.9) B(18.6)Eastbound C(28,2) C(22.9)Westbound B(14.1) B(14.6)Northbound C(27.8) C(22.4)Southbound C(26.0) C(21.3)

    CenterRidge&EastAccess StopSign NorthboundRight C(24.0) B(11.9)DoverCenter&Westown StopSign EastboundLeft F(123.8) F(61.8)

    EastboundRight B(12.6) B(13.5)Eastbound F(76.9) E(37.5)Northbound B(12.6) A(9.2)

    (XX.X)=Averagevehicledelayinsecondspervehicle

    ThestudyareaintersectionsareexpectedtooperatewithacceptablelevelsofserviceduringtheAMandPMpeakhoursundertheexpected2039AlternateScenarioBuildconditionswiththeexceptionoftheDoverCenterRoadandWestownBoulevardintersection.

    June 5, 2017 Page 56 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    Basedontheseresults improvementsarenecessaryat the intersectionofDoverCenterRoadandWestownBoulevardunderthe2039AlternateScenarioBuildconditions.

    Inordertodeterminewhatmitigationwouldbenecessarytoimprovethelevelsofserviceatthisintersection, certain improvements were tested with further capacity analyses. The followingimprovementsarerecommendedtomitigatetheanticipatedpoorlevelsofserviceunderthe2039AlternateScenarioBuildconditions:

    DoverCenterRoad&WestownBoulevard# Stripetheeastboundapproachforseparateleftandrightturnlanes.# Installtrafficsignalcontrol.

    Thefollowingtableshowsthecapacityanalysisresultsofimplementingtheproposedimprovements.CopiesofthecapacityworksheetsfortheimprovedintersectionareinincludedinAppendixQ.

    Table4.202039LevelsofService(AlternativeScenarioRecommendedImprovements)

    LOCATIONTRAFFICCONTROL

    MOVEMENTAMPEAK

    LOS(DELAY)PMPEAK

    LOS(DELAY)

    DoverCenter&Westown TrafficSignal Intersection C(22.2) B(19.8)Eastbound C(27.2) C(21.7)Northbound C(27.6) C(21.7)Southbound B(12.3) B(16.4)

    (XX.X)=Averagevehicledelayinsecondspervehicle

    June 5, 2017 Page 57 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    TrafficSignalWarrantAnalysisDoverCenterRoad&WestownBoulevard2039AlternateConditions

    Theanticipated2039AlternateScenarioBuildtrafficconditionsattheintersectionofDoverCenterRoadandWestownBoulevardwereanalyzedandcomparedtothecriteriaestablishedbytheOhioManualofUniformTrafficControlDevicesandprofessionalengineeringjudgementtodetermineiftrafficsignalcontroliswarrantedattheintersection.AllofthedatacollectedanddeterminedforthisstudywasanalyzedandcomparedtothethresholdsestablishedbythecriteriafromtheOMUTCD.Warrant3wasevaluatedforthisanalysisoftheexpected2039AlternateScenarioBuildconditions.

    Inorder todetermine if the2039anticipatedbuildconditionsareexpected tomeetoneof thesewarrants,theexistinghourlyvolumesmultipliedbythepreviouslydiscussedgrowthratetodeterminethefuture2039Buildconditions.Thesitegeneratedtrafficwasaddedtothepeakhours.Itshouldbenotedthatthedesignhourfactorshavenotbeenincludedonthesignalwarrantvolumecalculations.

    BasedupontheevaluationofthewarrantsestablishedbytheOhioManualofUniformTrafficControlDevices,weconcludethatatrafficsignalisjustifiedattheintersectionofDoverCenterRoadandWestownBoulevardasrequiredbytheOhioRevisedCodebasedupontheexpected2039AlternateScenarioBuildconditions.CopiesofthetrafficsignalwarrantanalysisworksheetscanbefoundinAppendixI.

    June 5, 2017 Page 58 TMS Engineers, Inc.

  • Traffic Impact Study Westlake Elementary School, Westlake, Ohio

    A comparisonwas performed to show the incremental effects on the capacity

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