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HomeMy WebLinkAboutAgenda AGENDA Transportation Committee Regular Meeting 4:45 PM - Monday, July 6, 2020 Video-conference 1. Emerging Issues in Transportation a) Prioritization of 2021-2026 TIP List b) Sound Transit c) Renton Airport Reorganization THE FOLLOWING LIST IS THE INITIAL PRIORITIZED LIST FOR THE TRANSPORTATION IMPROVEMENT PLAN 2021-2026 AGENDA ITEM #1. a) Each program/project will identify which PROJECT ASPECTS or the goals that it intends to meet and will have the current FUNDING STATUS. Each program/project will be scored by how strongly they address this criteria: Plan Category Funding Status Project Status TIP Actions CONSTRAINED Fully Funded - CN (FFCN) Under Construction / Project Closeout All funds programmed and all grant funds obligated. Funded - CN (FDCN) Design >60% Complete / Funded for Construction Getting ready for Construction Documentation. All funds programmed and/or will obligate grant funds when ready, and if necessary. Partially Funded - CN (PFCN) Design In Progress/ <60% Complete. Environmental process complete. Getting ready for Final Review plans. Some funds programmed for Con- struction phase, such as grant fund- ing. More funding needed. Partially Funded - PE/ROW (PFRW) Design In Progress/ >30% Complete. ROW phase is relevant to project. Programmed for PE and ROW and/or will obligate for ROW grant funds when ready and if necessary. Construction Phase NOT FUNDED. Partially Funded - PE (PFPE) Design In Progress. Project only funded for Design. Waiting for available revenue sources for other phases. Programmed for PE only and other analysis remains to be done. Construction Phase NOT FUNDED. Unprogrammed Candidate Project identified in other Planning Document (s) as high priority/high need. No determined funding programmed. May need further analysis. What is the purpose of this project? Is this project funded? What is the business case for this? What factors make this project so important? AGENDA ITEM #1. a) RANK TIP#Name Project Limits Program/ Project LifeSafety PlanImp System Financial Directive Mitigative Funding Status Project Aspects Planning Area 1 20-21 Rainier Ave S/N Corridor Improvements Phase 4 S 3rd St to NW 3rd Pl Project HIGH HIGH MED HIGH HIGH HIGH Partially Funded - CN Maintenance and Preservation, Operations and Safety, Active Transportation City Center 2 20-01 Street Overlay Program HIGH MED MED HIGH HIGH HIGH Other-Program Funding Maintenance and Preservation Citywide 3 20-02 Arterial Rehabilitation Program Program HIGH MED MED HIGH HIGH HIGH Other-Program Funding Maintenance and Preservation Citywide 4 20-14 Bronson Way Bridge Seismic Retrofit/Painting across Cedar River Project HIGH MED MED HIGH HIGH HIGH Funded - CN Maintenance and Preservation City Center 5 20-15 Duvall Ave NE Roadway Improvements,NE 7th St to Sunset Blvd NE Project HIGH LOW HIGH HIGH HIGH HIGH Funded - CN Maintenance and Preservation, Operations and Safety, Active Transportation Highlands, East Plateau 6 20-25 South 7th Street Corridor Improvements Park Ave N to Gene Coulon Park Project HIGH LOW HIGH HIGH HIGH HIGH Funded - CN Operations and Safety, Active Transportation City Center 7 20-27 Williams Ave S and Wells Ave S Conversion Project,S Grady Way to N 1st St Project MED HIGH MED HIGH HIGH HIGH Fully Funded - CN Operations and Safety, Active Transportation, Plan Implementation and Compliance City Center 8 20-19 NE Sunset Boulevard (SR 900) Corridor Improvements Sunset Blvd NE to Monroe Ave NE Project MED HIGH MED HIGH HIGH HIGH Partially Funded - PE/ROW Operations and Safety, Active Transportation, Plan Implementation and Compliance Highlands 9 20-24 South 2nd Street Conversion Project Rainier Ave S to Main Ave S Project MED HIGH MED HIGH HIGH HIGH Partially Funded - PE Operations and Safety, Active Transportation City Center 10 20-16 Houser Way Intersection and Pedestrian Improvements Project HIGH LOW HIGH HIGH HIGH MED Fully Funded - CN Operations and Safety, Active Transportation City Center 11 20-17 Houser Way Bridge Seismic Retrofit and Painting across Cedar River Project HIGH LOW MED HIGH HIGH HIGH Funded - CN Maintenance and Preservation City Center 12 20-22 Renton Connector S 2nd St to S 5th St Project MED HIGH MED HIGH HIGH MED Partially Funded - PE Active Transportation City Center 13 20-18 Lake Washington Loop Trail Phase 3 Logan Ave N/Cedar River Trail junction to Rainier Ave S/Airport Way Project MED HIGH HIGH HIGH HIGH LOW Funded - CN Operations and Safety, Active Transportation City Center 14 20-20 Park Ave North Extension Logan Ave N to Southport Project LOW HIGH HIGH HIGH HIGH HIGH Funded - CN Operations and Safety, Active Transportation City Center AGENDA ITEM #1. a) RANK TIP#Name Project Limits Program/ Project LifeSafety PlanImp System Financial Directive Mitigative Funding Status Project Aspects Planning Area 15 20-05 Intersection Safety & Mobility Program Program HIGH MED HIGH HIGH LOW HIGH Other-Program Funding Operations and Safety Citywide 16 20-08 Intelligent Transportation Systems (ITS) Program Program HIGH MED HIGH HIGH LOW HIGH Other-Program Funding Maintenance and Preservation, Operations and Safety Citywide 17 20-11 Barrier-Free Transition Plan Implementation Program HIGH MED HIGH HIGH LOW HIGH Other-Program Funding Operations and Safety, Plan Implementation and Compliance Citywide 18 20-05.1 Oakesdale Ave SW & SW 41st St Intersection Improvements Project HIGH MED HIGH HIGH LOW HIGH Candidate Operations and Safety Valley 19 20-26 Williams Ave N Bridge Seismic Retrofit and Painting across Cedar River Project LOW HIGH MED HIGH HIGH HIGH Funded - CN Maintenance and Preservation City Center 20 20-23 Renton Elementary and Middle School Crossings Project HIGH LOW MED HIGH HIGH LOW Funded - CN Operations and Safety, Plan Implementation and Compliance various 21 20-46 South 3rd Street Conversion Project,Rainier Ave S to Main Ave S Project MED HIGH HIGH LOW HIGH HIGH Candidate Active Transportation, Plan Implementation and Compliance City Center 22 20-07 Preservation of Traffic Operation Devices Program Program HIGH MED MED HIGH LOW HIGH Other-Program Funding Maintenance and Preservation, Operations and Safety Citywide 23 20-09 Sidewalk Rehabilitation and Replacement Program Program HIGH MED MED HIGH LOW HIGH Other-Program Funding Maintenance and Preservation, Active Transportation Citywide 24 20-10 Bridge Inspection & Repair Program Program HIGH MED MED HIGH LOW HIGH Other-Program Funding Maintenance and Preservation, Plan Implementation and Compliance Citywide 25 20-02.1 SW 43rd St Resurfacing,SR 167 to west City Limits Project MED MED HIGH HIGH LOW HIGH Funded - CN Maintenance and Preservation Valley 26 20-06 Traffic Safety Program Program HIGH MED MED HIGH LOW MED Other-Program Funding Operations and Safety Citywide 27 20-03 Walkway Program Program HIGH MED HIGH HIGH LOW LOW Other-Program Funding Active Transportation Citywide 28 20-04 Roadway Safety and Guardrail Program Program HIGH MED HIGH HIGH LOW LOW Other-Program Funding Maintenance and Preservation, Operations and Safety Citywide AGENDA ITEM #1. a) RANK TIP#Name Project Limits Program/ Project LifeSafety PlanImp System Financial Directive Mitigative Funding Status Project Aspects Planning Area 29 20-02.2 Oakesdale Ave SW Preservation Project,SW 34th St to SW 16th St Project MED MED MED HIGH LOW HIGH Candidate Maintenance and Preservation Valley 30 20-29 Carr Road improvements,Davis Ave S to 109th Ave SE Project HIGH HIGH HIGH LOW LOW HIGH Candidate Maintenance and Preservation, Operations and Safety, Active Transportation Talbot, Benson 31 20-39 NE 3rd Street Corridor Improvements Sunset Blvd N to Jefferson Ave NE Project HIGH HIGH HIGH LOW LOW MED Candidate Operations and Safety, Active Transportation Highlands 32 20-40 NE 4th St Corridor Improvements,Jefferson Ave NE to Duvall Ave NE Project HIGH HIGH HIGH LOW LOW MED Candidate Operations and Safety, Active Transportation Highlands 33 20-13 Arterial Circulation Program Program LOW MED MED HIGH LOW HIGH Other-Program Funding Plan Implementation and Compliance Citywide 34 20-52 Transit Master Plan Project LOW HIGH HIGH LOW MED HIGH Candidate Operations and Safety, Active Transportation Citywide 35 20-42 Nile Ave NE Bridge Replacement,across May Creek Project HIGH LOW HIGH LOW LOW HIGH Candidate Maintenance and Preservation East Plateau 36 20-53 Walkway Master Plan Project LOW HIGH HIGH LOW MED MED Candidate Operations and Safety, Active Transportation Citywide 37 20-30 Hoquiam Ave NE Non-motorized Improvements,NE 10th Pl to NE Sunset Blvd Project HIGH LOW HIGH LOW LOW MED Candidate Operations and Safety, Active Transportation East Plateau 38 20-12 Project Development & Pre-Design Program Program LOW MED MED HIGH LOW LOW Other-Program Funding Plan Implementation and Compliance Citywide 39 20-37 Maple Valley Highway Barriers from SE 5th St to approximately 1800 feet west Project HIGH LOW HIGH LOW LOW LOW Candidate Maintenance and Preservation, Operations and Safety Cedar River 40 20-35 Local Road Safety Plan Implementation Program HIGH LOW HIGH LOW LOW LOW Candidate Operations and Safety Citywide 41 20-28 116th Ave SE Improvements,SE 168th St to SE 160th St Project LOW HIGH HIGH LOW LOW HIGH Candidate Active Transportation, Plan Implementation and Compliance Benson 42 20-38 Monster Road SW/68th Ave S Roadway Improvements Project LOW HIGH HIGH LOW LOW MED Candidate Operations and Safety, Active Transportation Valley AGENDA ITEM #1. a) RANK TIP#Name Project Limits Program/ Project LifeSafety PlanImp System Financial Directive Mitigative Funding Status Project Aspects Planning Area 43 20-51 SW 27th Street/Strander Boulevard Connection Project LOW LOW MED LOW LOW HIGH Other-Led by Others Operations and Safety, Active Transportation Valley 44 20-43 Rainier Ave N Corridor Improvements Phase 5,NW 3rd Pl to north city limits Project LOW HIGH MED LOW LOW MED Candidate Maintenance and Preservation, Active Transportation City Center 45 20-45 SE 168th St Protected Bike Lanes,116th Ave SE and 128th Ave SE Project LOW HIGH HIGH LOW LOW LOW Candidate Active Transportation Benson 46 20-31 Houser Way Non-Motorized Improvements,Mill Ave S to Bronson Way S Project LOW LOW HIGH LOW LOW HIGH Candidate Active Transportation City Center 47 20-33 Lake to Sound (L2S) Trail, East-West Trail connecting Lake Washington to Puget Sound Project LOW LOW HIGH LOW LOW LOW Other-Led by Others Active Transportation City Center 48 20-36 Logan Ave North Improvements,S 2nd St to Park Ave N Project LOW LOW HIGH LOW LOW HIGH Candidate Operations and Safety, Active Transportation City Center 49 20-34 Lind Ave SW Roadway Widening,SW 16th St to SW 43rd St Project LOW LOW MED LOW LOW HIGH Candidate Operations and Safety, Active Transportation, Plan Implementation and Compliance Valley 50 20-41 NE Sunset Blvd Transit and Access Improvements, Union Ave NE to Hoquiam Ave NE Project LOW LOW HIGH LOW LOW MED Candidate Operations and Safety, Active Transportation Highlands 51 20-47 South Grady Way Multi-Modal Improvements, Talbor Rd South to Rainier Ave South Project LOW LOW HIGH LOW LOW MED Candidate Operations and Safety City Center 52 20-44 Renton Bus Rapid Transit (BRT) Improvements, S Renton Village Pl extension to S Grady Way Project LOW LOW HIGH LOW LOW MED Candidate Operations and Safety, Active Transportation City Center 53 20-48 South Lake Washington Transit Stop vicinity of Southport Dr N and Garden Ave N Project LOW LOW HIGH LOW LOW MED Other-Led by Others Active Transportation City Center 54 20-32 Houser Way North Widening and Realignment, N 8th S to Lake Washington Blvd Project LOW LOW HIGH LOW LOW LOW Candidate Active Transportation City Center 55 20-49 Southport Pedestrian Connection, from Lk Wash Blvd N into Southport Development under trestle Project LOW LOW MED LOW LOW MED Other-Led by Others Active Transportation City Center AGENDA ITEM #1. a) Preparedfor:SoundTransitPreparedby:ParametrixParsonsBrinckerhoffFINALSOUNDTRANSITHCTPlanningSoundTransitLong-RangePlanUpdateIssuePaperS.5:RailbetweenBurienandRentonMarch2005AGENDA ITEM #1. b) ForewordThisissuepaperispartofaseriesofreportsdesignedtoinformtheSoundTransitBoardinitsdecision-makingontheRegionalTransitLong-RangePlanupdatefortheSoundTransitservicearea.EachissuepaperprovidesinformationaboutaspecificelementorareaoftheLong-RangePlanandpotentialoptions.Thesereportsfocusonissuessuchascosts,ridership,engineeringfeasibilityandoperations.TheenvironmentalimpactsoftheupdatedLong-RangePlanandOptions,aswellaspotentialmitigationmeasures,areexaminedintheDraftSupplementalEISfortheRegionalTransitLong-RangePlan(December2004).TheDraftSEISsupplementsthe1993EISpreparedontheRegionalTransitSystemPlan,anditgenerallyupdatesthatinformationandanalysisthroughtheyear2030.Publicandagencycommentsonthe2004DraftSupplementalEIShavebeenreceivedandwillberespondedtoinafinalSEIStobeissuedinJune2005.TheSoundTransitBoardanticipatesidentifyingadraftupdatedLong-RangePlaninthespringof2005.TherewillbeanopportunityforpublicreviewandcommentonthedraftPlan.TheBoardwilladoptafinalupdatedLong-RangePlanafterpubliccommentsarereceivedonthedraftplanandthefinalSEISisissued.ReferencesinthesereportstoSoundTransit’sexistingLong-RangePlanaretothe1996Regional1’ransitLong-RangeVision,whichfunctionsastheagency’sLong-RangePlan.I)iscussionoftheupdatedLong-RangePlanreferstothePlanbeingdevelopedbySoundTransitoverthecomingmonths.Thefoltowingissuepapersarebeingprepared:EastCorridorE.1—1-90/EastKingCountyHigh-CapacityTransit(HCT)AnalysisNorthCorridorN.J--BitsRapidTransit(BRT)inSR99CorridorN.2—1-5CorridorNorthgatetoEverettHCTAssessmentN.3SecittleStreetcarOptionsN4SR522CorridorHCTAssessment—ConvertibilityofBRTtoLightRailSouthCorridorS.]—TacomaLinkIntegrationwithCentralLinkS.2—PotentialRailExtensionstoFredericksonandOrting5.3—HCTSystemDevelopmentIssuesintheSouthCorridor5.4—PotentialTacomaLinkExtension-West8.5—RailbetweenBurienandRenton£6—PotentialTacomaLinkExtension—EastRailbetweenBurienandRentonParametrixfinalReport/March2005iParsonsBrinckerhoffAGENDA ITEM #1. b) TableofContents1.StudyPurpose.12.KeyFindings13.MajorStudyElements13.1PotentialRailAlignments23.1.1PotentialSharedTrackversusSeparateTrackConfigurations23.1.2DowntownBurien-TukwilaSegment53.1.3Tukwila/NorthRentonSegment73.2EstimatedRidershipfortheExtension93.3SystemOperations103.3.1StationSpacingandLocations103.3.2ServiceFrequenciesandVehiclesii3.4MaintenanceandOperationsFacilities113.5CostEstimates12RailbetweenBurienandRentonParametrixfinalReport/March2005iiParsonsBrinckerhoffAGENDA ITEM #1. b) ListofFiguresFigure1.PotentialRailCorridor/Burien-Renton3Figure2.Burien-RentonRailCorridorAlignmentOptions6figure3.PotentialRailCorridor/Tukwila-Renton8RailbetweenBurienandRentonParametrixfinalReport/March2005iiiParsonsBrinckerhoffAGENDA ITEM #1. b) 1.StudyPurposeThepurposeofthisanalysisistoevaluatethepotentialforalightrailtransit(LRT)corridorbetweendowntownBurienandRentonaspartofanupdatetoSoundTransit’sLong-RangePlan(LRP).Thepurposeofthisanalysisisnottoselectaspecificroutebuttoprovideinformationonthecorridorbyevaluatingpotentialalignments,stationlocations,estimatedridershiplevels,andcoststohelpinformaLong-RangePlandecision.Optionshavebeendevelopedforconceptual-levelevaluationoftheproposedLRTsystem.Theseconceptshelpdefinethemagnitudeofpotentialcostsassociatedwiththiscorridor.Todetermineconceptual-levelcosts,conceptualalignmentswereanalyzedtoaddresstheinterptaybetweenridershipdemandandtheoperationalcharacteristicstomeetthisdemand.Theseoptionscenterontheissueofhowaneast-westBurien-RentonlightrailcorridormightinterfacewithCentralLink,AirportLink,andSounder.2.KeyFindings•ApotentialLRTlinebetweenBurienandRentonisprojectedtohavedailyridershipofapproximately24,000by2030.•AvarietyoffactorswillinfluenceprojectedridershipincludingtransferswithbothAirportLinkandCentralLinkatthefutureSl54StreetStationinTukwila.•CapitalcostsfortheLRTtinewouldrangebetween$1.0billionand$1.4billion.•FortheportionofthecorridorbetweenTukwila(attheS.154thStreetCentralLinkStation)andBurien,thereareopportunitiesforsurfacealignmentoptions.•FortheportionofthelinebetweenTukwilaandRenton,theextentofdevelopment,thetopography,andlimitedopportunitiesforusingright-of-wayadjacenttoroadwayswouldrequirethatthealignmentbepredominantlywithinexclusiveright-of-wayandgrade-separated,withmajorportionslikelyelevated.3.MajorStudyElementsThemajorstudyelementsaddressedinthisissuepaperwillhelpassessthepotentialforalightrailcorridorbetweendowntownBurienandRenton.Themajorstudyelementsinclude:•Potentialrailalignments•Projectedridership(2030)•Systemoperations•CostestimatesRailbetweenBurienandRentonParametrixFinalReportMarch20051ParsonsBrinckerhoffAGENDA ITEM #1. b) 3.1PotentialRailAllgnmentsThissectiondescribespotentialalignmentsforalightraillinebetweenBurienandTukwila.Tointroducethissection,thereisadiscussionofpotentialconfigurationsfortheraillineinrelationshiptothecurrentlyplannednorth-southLinkrailsystem.Oneconfigurationwouldhaveasegmentofaneast-westraillinesharedwiththefutureCentralLink/AirportLinklineconnectingSeattlewithSeaTac,whileanotherwouldhavealinethatoperatesseparatelyfromtheCentralLink/AirportLinkline.ThepotentialBurien-Rentoncorridorwasevaluatedintwomajorsegments.Thesesegmentsare:•DowntownBurientoTukwila(S154thStreetStation)and•Tukwila(S154thStreetStation)toNorthRentonFigure1showsthepotentialBurien-Rentonrailcorridor.Thefollowingfurtherdescribesthecomponentsofthecorridor,includinglocationsforsharedversusseparatetrackalignments.3.1.1PotentialSharedTrackversusSeparateTrackConfigurationsApotentialeast-westraillinebetweendowntownBurienandRentonshouldintegrateinsomemannerwiththefuturenorth-southLRTservicebetweenSeattleandSeaTac.Thisnorth-southLRTlinewillbecomprisedoftheinitialCentralLinkLRTsystembetweendowntownSeattleandtheinterimterminalstationat5.154thStreet/InternationalBoulevardinTukwila.ThistinewilleventuallybeextendedsouththroughSea-TacAirportwiththeAirportLinksystem.ItisassumedthataBurien-RentonLRTlinewouldprovideconnectionswiththenorth-southserviceattheS154thStreetStation.Todothis,theBurien-Rentoneast-westraillinecould:1)Bealignedinamannerthatwouldresultinasharedtrackwithnorth-southservice;or2)Operateasaseparatealignmentfromthenorth-southservice.Figure1illustratesthesharedtrackandseparatealignmentconfigurationsforapotentialBurienRentonline.Thefollowingsummarizespotentialkeyelementsforeachconfiguration:SharedTrackConfigurationUnderapotentialsharedtrackconfiguration,aportionofthefutureLRTlinebetweenSeattleandSeaTacwottldbeincommonwithaportionofapotentialBurien-Rentonline.Figure1highlightsthatportionoftheLRTlinethatwouldbeincommonwiththenorth-southandeast-westraillines.Toallowthesharedtrackconfiguration,twojunctionswouldbeconstructed.Onejunction,locatedwestofthefuturel54’StreetStation,wouldallowLRTservicetooperatewesttoapotentialdowntownBurienstation.Asecondjunctionwouldbeconstructedeastofthe154thStreetStationandalloweast-westLRTtrainstotraveleastandservestationsinTukwilaandRenton.RailbetweenBurienandRentonParametrixFinalReport’March20052ParsonsBrinckerhoffAGENDA ITEM #1. b) U).0I—00.2=000coc0—000•.0000)0l0Cz000U)C0Ca)0V0U)0F-0000LOID=0000)000to0(j)0IC-J0000C00U)00000U)-JV0iit’I0LCoI0,U-)0CDC,)—lz0ci00AGENDA ITEM #1. b) Thefollowingidentifiespotentialadvantagesanddisadvantagesofthesharedtrackconfiguration:Onepotentialadvantageofasharedtrackconfigurationinvolvescapitalcostssavingsascomparedtoastand-alonetrack.Thesesavingswouldoccursincethesharedportionwouldusethefuturetrackfornorth-southrailandavoidnewtrackconstructionalongthatportion.TheS.154thStreetStationwouldalsobeshared.However,sincethisstationwillhavesideplatforms,sometransferringriderswillhavetoleavetheplatformarea,godowntostreetlevel,andthenproceedtotheoppositesideplatform.Therefore,somemodificationstothecurrentlyplannedconfigurationmaybenecessarytomaketransfersbetweentheeast-westandnorth-southlinesoccurmoreefficientlyandcomfortablyforriders.•Apotentialdisadvantageofthesharedtrackisthatitwouldusecapacityofthefuturenorth-southlinebetweenSeattleandSealac.However,areviewofpeak-demandoperatingcapacityofthenorth-southlineindicatesthatBurien-Rentontrainsoperatingatheadwaysofsixminutescouldbeaccommodated.Moredetailedanalysisisneededtoconfirmthis.•AnotherpotentialdisadvantageofasharedtrackconfigurationisthepossiblesuspensionofSeattle-SealacrailservicetoallowconstructionofthejunctionswithapotentialBurienRentonline.Thesuspensionofserviceappearslikely;howeverafinaldeterminationwouldneedtoawaitmoredetailedstudy.SeparateTrackConfigurationUnderaseparatetrackconfiguration,apotentialBurien-Rentonraillinewouldoperateonadistinctandcompletelydetachedlinefromthenorth-southline.Thefollowingidentifiespotentialadvantagesanddisadvantagesoftheseparatetrackconfiguration:•Becausethetrackwouldbestand-aloneandseparatefromCentral/AirportLink,itwouldoffertwoadvantages:•oTherewouldnoneedforjunctionswithCentralandAirportLRTtherebysavingsomecapitalcosts;oSincejunctionswouldnotbenecessary,theremaybenoneedforanypotentialsuspensionofnorth-southrailservice.Potentialdisadvantagesofaseparatetrackconfigurationare:•Whileatransfercouldstilloccuratthe154thStreetStation,aseparatestationwouldhavetobebuiltalongthepotentialBurien-Rentonrailline.Thiswouldincuradditionalcapitalcostsascomparedtoasharedtrackarrangement.•Underthisconfiguration,theBurien-RentonlinewouldbeseparatefromCentral/AirportLink.Therefore,itcouldnotusethemaintenance-operationscentersouthofdowntownSeattleoranyplannednewmaintenanceandoperationsfacilitiesthatcouldbebuilttoserveRailbetweenBurienandRentonParametrixFinalReport’March20054ParsonsBrinekerhoffAGENDA ITEM #1. b) expansionsoftheCentral/AirportLinksystem--separatemaintenanceandoperationsfacilitywouldhavetobeconstructed.•Sincethislinewouldbeentirelyseparatefromthenorth-southLRTline,therewouldbeadditionalcostsforapproximatelyonemileofadditionaltrackroutelength.ThisadditionaltrackwouldnotbenecessaryunderasharedconfigurationsinceitwillalreadybeconstructedaspartofthefutureSeattle-SeaTacLRTline.•ForthecorridorbetweenS154thStreetStationand1-5,thereislimitedright-of-way(ROW)availableforaseparatetrack.TheROWchallengeswillbedifficult.ThefutureCentralLinklinetobelocatedalongthiscorridorwillusethelimitedavailablespacebetweenSR51$andS.154thStreet,whilethesouthsideofSR51$isasteepslopeadjacenttoandwithinWSDOTright-of-way,someofwhichwouldbeoccupiedbyplannedexpansionofthefreeway.3.1.2DowntownBurien-TukwilaSegmentThreepotentialgeneralalignmentoptionswereidentifiedforevatuation.Landusesvaryalongthealignmentoptionsandthemixofcommercialandresidentialuseswouldhelpsupportandgeneratepeakandnon-peakridershipfortheLRTservice.Alongthissegment,thealignmentoptionswouldincludeelevatedsections,sectionsonretainedfill,andanat-gradeprofile.ThealignmentoptionsareshowninFigure2.Option1—AlignmentNorthoftheSR51$WestboundLanesAsshownonFigure2,Option1followsa2.5-milealignmentextendingfromtheS154thStreetStationwestalong5154thStreet,turningnorthtofollowthenorthsideofSR51$westboundlanes,crossingSR509andfollowingSW148thStreet,andfinallyturningsouthintotheBurienStationinthevicinityof4thAvenueSW.UnderthisoptionthealignmentwouldbelocatedonaseparatetrackfromAirportLink.Aseparatestationwouldhavetobeconstructedadjacenttothefuture154th1StreetStation.Option2—AlignmentSouthoftheSR518EastboundLanesAsshownonFigure2,Option2followsa2.5-milealignmentextendingfromtheAirportLinkLRTlineneartheS.154thStreetStation,thenwestfollowingthesouthsideofSR51$eastboundlanes,crossingSR509andfollowingSW148thStreet,andturningsouthintotheBurienStationinthevicinityof4thAvenueSW.Undertheoption,thetrackfortheBurienTukwilalinewouldshareashortportionoftheAirportLinkline.Toallowthistracksharing,arailjunctionwouldbeconstructedsouthwestofthe154thStreetStationwithintheSR518/NorthAirportExpresswayinterchangearea.Option3—AlignmentSouthoftheSR518EastboundLanesandPassingbyHightineHighSchoolAsshownonFigure2,Option3followsa2.6-milealignmentthatalongitseasternhalfissimilartothesamesegmentinOption2untilitapproachesDesMoinesMemorialDrive5,whereitveerssouthtofollowSW152ndStreet,thencrossesSR509andcontinuesalongSW152ndStreetuntilitreachesthevicinityof4thAvenueSW,whereitturnsnorthandterminates.RailbetweenBurienandRentonParametrisfinalReport/March20055ParsonsBrinckerhoffAGENDA ITEM #1. b) it’!HI1ICa00.0a,E=C)cC0•00cia,000a,Ca,a,zC)LLIfUE-a,a,a.AGENDA ITEM #1. b) AsisthecasewithOption2,thetrackfortheBurien-TukwilalinewouldshareaportionoftheAirportLinkLRTline.Toallowthistracksharing,arailjunctionwouldbeconstructedsouthwestofthe154thStreetStationwithintheSR518/NorthAirportExpresswayinterchangearea.3.1.3TukwilalNorthRentonSegmentfigure3showsapossiblealignmentfortheTukwila-RentonportionofapotentialBurienRentonLRTline.Giventheneedtoclearmajorbarrierssuchas1-5aswellasthelimitedright-of-wayforsurfaceoperations,thealignmentbetweenTukwilaandRentonwilllikelyrequiremanygrade-separated,elevatedsegments.EastoftheTukwilaSounderStation,theremaybeopportunitiesforsurfacealignmentsegmentsthroughRenton.Furtheranalysisofthecorridor,includingvariationsonpotentialspecificalignmentswouldprovidemoreinformationaboutwheresurfaceversusaerialalignmentsarepossible.Forthepurposesofthisissuepaper,theraillinkbetweenTukwilaandRentonisassumedtoincludeaportionthatwouldbesharedwiththefuturenorth-southCentralLinkLRTline.AnoptiontothissharedtrackwouldinvolveaseparateLRTlinebetweenBurienandRenton.However,aseparatelineandstationatSl54StreetcouldraisepotentialissuesthatwerenotedinSection3.1.1—SeparateTrackConfiguration.ThefollowingfurtherdescribeskeycomponentsoftheTukwila-Rentonalignment.RailJunctionwithCentralLinkAsnotedabove,thisissuepaperassumesa0.7mileportionofsharedtracksharedwithCentralLink.Issuesassociatedwithaseparate,stand-alonetrackarediscussedaboveunderSection3.1.1.KeyissuessuchaslimitedROWforaseparatetrackbetweentheS154thStreetStationand1-405indicatethatthesharedtrackconfigurationmaybemoreviableifconstructionissuesrelatedtopotentiallengthyperiodsofnon-operationforCentral/AirportLinkcanberesolved.Thealignmentshowninfigure3includesatrackjunctionthatwouldbeconstructedeastofthel54’StreetStation.ToallowforapotentialfuturejunctiononCentralLinkwithapotentialeast-westLRTline,designfeatureswereincorporatedintotheplansfortheCentralLinktine.Thesefeatures(i.e.,adequateverticalandhorizontaltangentsofthespans)allowforajunctiontobebuiltonCentralLinkatalocationapproximately0.3mileswestof1-5andoutsideofthecurvedtracksegment.ThislocationisshownonFigure3.ShouldaBurien-RentonLRTlinebecomeaprojectcandidate,furtheranalysiswillbeneededofpotentialimpactsonCentral/AirportLinkoperations,includingthepossibilityofneedingtotemporarilysuspendservice.Whilethissuspensionappearslikely,moredetailedanalysiscouldrevealasolutionthatavoidsitentirely,oratleastmitigatesitsignificantly.RailbetweenBurienandRentonParametrixfinalReport/March20057ParsonsBrinckerhoffAGENDA ITEM #1. b) C0CI—iz00AGENDA ITEM #1. b) TukwilaAlignmentEastofthejunctionwithCentralLink,theelevatedtrackapproaches1-5atalevelthatwouldclearthefreeway.Afterspanningthefreewaytoreachtheeastsideof1-5,theelevatedtrackcontinueseastwardalonganalignmentbetweenSouthcenterBoulevardand1-405.Thetrackthenheadssouth,crosses1-405,andtravelsalongtheeastsideofSouthcenterMall,(possiblywithintheAndoverParkWestright-of-way.)ApotentialstationislocatedintheareaeastofthemallandnorthofStranderBoulevard.ThetrackthenheadssouthtoStranderBoulevardwhereitturnseasttofollowthenorthsideofStranderBoulevard.fromthenorthsideofStranderBoulevard,theraillinecontinueseastwardtowardWestValleyHighway.WhenitreachesWestValleyHighway,thetrackturnsnorthwardandparallelstheBurlingtonNorthernSantaFeRailroadtracktoreachtheTukwilaSounderstation.AnLRTstationwouldbelocatedattheSounderStationareaTukwila-RentonAlignmentfromtheTukwilaSounderStation,thelinecontinuesnorthandcrossesover1-405toGradyBoulevardwhereitturnsandfollowsGradyBoulevardeastwardtoapointroughly500feetfromtheintersectionwithRainierAvenue.ThealignmentthenturnsnorthtoHauserWay,whereitthenturnseastandparallelsHauserWayandtheBNSFtracks.AstationislocatedintheHauserWay/BNSFrailroadcorridoratBurnettAvenueandaboutonetotwoblockssouthofthedowntownRentonTransitCenter.Leavingthestation,thelinethenfollowsHauserWay,SunsetBoulevard,andHauseragain(asegmentwhichalsoparallelstheBNSfline)toaNorthRentonstation.TheassumeddowntownRentonstationwouldbelocatedonetotwoblockssouthoftheexistingdowntownRentonTransitCenterwhichislocatedat3td1StreetandBurnettAvenue.ItmaybepossibletoprovideamorecentralizedlocationforadowntownLRTstation,onethatisintegratedwiththeRentonTransitCenter,byhavingtheLRTlinebeelevatedoratsurfacein-streetasitapproachesthepresentlocationofthetransitcenter.Thesealignmentswouldrequiremoredetailedstudytoaddresssuchitemsastrafficoperationsandcompatibilitywiththesurroundingdevelopment.3.2EstimatedRiders/upfortheExtensionRidershipestimatesforthepotentialextensionwerepreparedforafutureyearof2030usingST’sridershipforecastingmodel.ApotentialBurien-RentonLRTtinewasestimatedtohaveapproximately24,000dailyriders.TheseridershipestimateshavebeenidentifiedintheDraftSupplementalEnvironmentalImpactStatementfortheRegionalTransitLong-RangePlan.Severalfactorsareexpectedtoaffectthisprojecteddemand.Thesefactorsinclude:•Transfersto/fromCentralLinkandAirportLinkLRTService•Transfersto/fromSounderserviceattheTukwilacommuterrailStationRailbetweenBurienandRentonParametrixfinalReport/March20059ParsonsBrinckerhoffAGENDA ITEM #1. b) •Assumedsix-minutefrequenciesinthepeakperiods•AccesstotheregionalretailcenterinTukwilaatandadjacenttothemall•Connectionswithlocaltransitserviceatvariousrailstations•Park-and-rideaccessatthreelocationsontherailcorridor(downtownBurien,TukwilaSounder,andNorthRenton).•Drop-offfacilitiesatalllocations33SystemOperationsSystemoperationsforapotentialLRTlinewouldbesimilarforthethreeatignmentoptionsidentifiedfortheTukwila-Buriensegment.Also,theridershipdemandisassumedtobeconsistentamongtheoptionstbrthisissuepaper.Stationspacingandlocationdifferonlyslightlyamongtheoptions,andheadwaysandnumberofvehiclesrequiredforthesystemareassumedtobethesame.3.3.1StationSpacingandLocationsThefollowingsectionsfurtheridentifypotentialstationlocationsforapossibleBurien-RentonLRTline.ThisidentificationisprovidedfortheTukwila-BurienandTukwila-Rentonsegmentsofthepotentialrailline.Tukwila-BurienSegmentAlongtheBurien-Tukwilasegment,twopossibtestationswereidentified:thefuture5154StreetStationinTukwilaandapotentialwestterminalstationindowntownBuriennearorattheexistingBurienTransitCenter.TheexistingresidentialpopulationfromwhichtodrawridersaroundthepotentialBurienStationisapproximately400peoplewithinaquarter-mileradiusandapproximately3,200withinahalf-mileradius.1-lowever,theproximityoftheBurienTransitCenterandpark-and-ridelottothewestterminalstationwouldprovideconnectionsforridersthatcouldsignificantlyincreasetheareafromwhichtodrawriders.OnlyalignmentOption3hasapotentialthirdstation,whichwouldbelocatednearHighlineHighSchoolonSW152ndStreet.ThisstationwouldprovideanadditionaltransportationoptiontothehighschoolandMoshierPark.Tukwila-RentonSegmentFortheTukwila-Rentonportionofthepotentialrailline,fourstationswereidentified:Southcenter,TukwilaSounder,DowntownRenton,andNorthRenton.TheSouthcenterStationwouldserveprimarilyretail/office/lightindustrialactivity.Nopark-and-ridelotfacilityisassumedatthisstationsinceitwouldprimarilyserveasadestination.TheTukwilaSounderStationwouldprovideconnectionstocommuterrailservingtheEverettSeattle-Tacoma-LakewoodCorridor.ThisstationwouldalsobewithinwalkingdistanceofRailbetweenBurienandRentonParametrixfinalReport/March200510ParsonsBrinckerhoffAGENDA ITEM #1. b) employmentattheBoeingLongacresfacilityandpotentiallyinTukwilashouldthecityfollowthroughwithplansthattargettheareabetweentheSounderStationandthemaltforhigherdensitycommercialdevelopment.Sincethestationcouldalsoserveasanoriginfortrips,additionalpark-and-ridecapacitymaybeneeded.ThedowntownRentonstationwouldserveamixofuses,includingresidential,employment,andretail.TheNorthRentonLRTstationwouldbelocatednearmajoremployment(e.g.,theBoeingandPaccarplants.)Forthepurposeofthisissuepaper,additionalpark-and-ridecapacityhasbeenidentifiedforthisstation.Also,thelocationoftheNorthRentonLRTstationandrailalignmentshouldbecoordinatedwithpotentialHCTdevelopmentalongthe1-405corridortodowntownBellevue.Aspartofthe1-405program,potentiallocationsforbusrapidtransit(BRT)stationshavebeenidentifiedfortheRentonarea.WithinRenton,thepotentialBRTstationswouldbelocatedneartheexistingBoeingfacilityatN.8thStreetadjacentto1-405.AnotherBRTstationwouldbelocatedindowntownRenton.ApotentialrailstationinNorthRentoncouldprovideanopportunityfortransferswiththeBoeingBRTstation.3.3.2ServiceFrequenciesandVehiclesTheassumedpeakperiodfrequencyisconsistentamongalignmentoptions.Specifically,apeakperiodfrequencyofsixminuteswasusedtoestimateYear2030ridershipandtodeterminevehicleneedsfortheLRTcorridor.Basedonalignmentlengths,anassumed30mphaveragetravelspeed(includingaccelerationanddecelerationatstations),andotherfactors,theestimatedLRTtraveltimebetweendowntownBurienandNorthRentonwouldbeapproximately25minutesineachdirection.Giventhe6-minutefrequencyandtheestimatedcapacityof148persons(74seatingplus74standing,thesameasthatforaCentralLinklightrailvehicle(LRV)),theestimatedpeakhourridershipdemandcouldbemetwithsingle-cartrains.Analternativewouldbetoprovide12-minutefrequencieswith2-cartrains.However,thisfrequencyofservicewouldbelessthanwhatwasassumedforthe2030ridershipprojectionsfortheBurien-Rentonrailcorridor.Toallowforpotentialmulti-cartrains,thestationcostestimatesassumedplatformlengthsforupto3-carlengthtrains.ThepeakdirectionalcapacityforanLRVwouldbeapproximately1,400ridersperhour.Thiscapacitywouldbesufficienttomeetprojecteddemandinduringpeakperiods.34MaintenanceandOperationsFacilitiesTheadditionalvehiclesthatwouldbeneedtosupportapotentialBurien-Rentonrailcorridorwouldalsorequireadditionalmaintenanceandoperationssupport.ThemaintenanceandoperationscenterlocatedalongtheCentralLinklineinSeattlewouldhavesufficientcapacitytoserveavehiclefleetforaNorthgate-SeaTac(S200thStreet)LRTline,asdescribedinSoundMove.Therefore,theadditionalvehiclesforthepotentialBurien-Rentoncorridorwouldrequirecapacityatanewfacility.RailbetweenBurienandRentonParametrixfinalReport/March20051]ParsonsBrinckerhoffAGENDA ITEM #1. b) IntheoptionwheretheBurien-RentonLRTlineisdirectlyconnectedtothenorth-southLRTline,theadditionalmaintenanceandoperationsneedsmaybeabletobeaccommodatedatafuturemaintenancefacilitybuilttoservefutureextensionsoftheCentral/Airport/NorthLinkline(i.e.,beyondNorthgateand/orS.200thStreetstations.)However,iftheBurien-Rentonrailcorridorisbuiltusingaseparateline,astand-alonemaintenanceandoperationsfacilitywouldhavetobeconstructed.35CostEstimatesApotentialBurien-Rentonrailcorridorwouldhaveamixofat-grade,retainedcutandfill,andelevatedconfigurations.BetweendowntownBurienandtheS154th1StreetStation,theextentofthismixwouldvarybyalignmentoption.Theextentofelevatedtrackcouldrangefrom1.1to1.5mileswhileat-gradealignmentscouldalsovarybetween1.1milesand1.5miles.Betweenthe154thStreetStationandNorthRenton,therailalignmentof6.3milesisassumedtobeentirelyelevatedforpurposesofthisanalysis.Thecostestimatesreflectingthesepotentialtypesofalignmentsrangefrom$1.0billionto$1.4billion.ForthepurposesofthisissuepaperthecostestimateassumesasharedtrackalongtheCentral/AirportLinkLRTlinebetweenthejunctionstotheBurien-Rentonline.Theestimatealsoincludescostsforintegratingthejunctionsintothissegment.Itisimportanttonotethatthesecostestimatesareataconceptuallevelonlyanddonotinvolveanylevelofengineeringordetailedanalysis.Torecognizepotentialvariationsaroundthisconceptual-levelestimate,thisrangereflectsapotentialdeviationinestimatedcostsofbetween95percentand130percent.Thecostestimatesusedavailableinformation,includingtheDraftSupplementalEISandresultsoftheTrans-LakeWashingtonStudy,whichexaminedpotentialhigh-capacitytransitdevelopmentsbetweenSeattleandtheEastside.TheestimatesalsorecognizerecentcostinformationforLinkprojectscurrentlyunderway.Thefollowingfurtherdescribesotherinformationrelatingtothecostestimates:•Foreachconstructionitem,estimatesfordesignandconstructioncontingencieshavebeenidentified.•Anenvironmentalmitigationfactorof15percenthasbeenaddedtoconstructioncosts.•Anoverallagencyfactorof35percenthasbeenaddedtototalconstructioncosts.•Anagencyfactorof10percenthasbeenaddedtoLRVacquisitioncosts.•Structuredparkingfacilitiesareassumedforthepark-and-rideoperationsthathavebeenidentifiedfortheBurien,Tukwila(Soundercommuterrailstation),andNorthRentonLRTstationsandareincludedinthecostestimates.•Kiss-and-ridefacilitiesareassumedatthefivepotentialnewLRTstations.RailbetweenBurienandRentonParametrixFinalReport/A/larch200512ParsonsBrinckerhoffAGENDA ITEM #1. b) •Thecostestimatesdonotincludeamaintenanceandoperationsbase;buttheydoincludeafactorofapproximately$1.5millionpervehicletoreflectmaintenanceandoperationsrequirementsforthepotentiallevelofrailserviceprovided.•ThenumberofLRVvehiclesisbasedonapreliminaryoperationsplanwhichprojectedthat11vehicleswouldbeneededforthecorridor.RailbetweenBurienandRentonParametrixfinalReport/March200513ParsonsBrinckerhoffAGENDA ITEM #1. b) AGENDA ITEM #1. b) P1EUCVCRI5 DERØRflVENf-qDMI%ISTRA11CN Maintenance Services Director Michael Stenhouse Administrative Assistant Linda Moschetti-Newing Utility Systems Director Ronald Straka Public Works -Administrator Martin Pastucha D -C I Transportation Systems Director’1 Jim Seitz J (Airport Director L Vacant pWEPcfr,iri.apc Last MXfiCd 6/1/2020 AGENDA ITEM #1. c) PUBLIC WORKS DEPARTMENT AIRPORT DIVISION Public Works Administrator Martin Pastucha Airport Director Vacant Administrative Secretary I Vacant OvU Engineer Ill WIii Adams Assistant Airport Manager Jason Anderson Airport Maintenance -& r Operations Supervlso - - Scott Babcock Airport Operations Specialist ttl Joseph Flore Airport Malntenan ceWorker stopher Donald Krame£hrl Mesa Business Coordinator Vacant lastMxlfled ,;,,vim AGENDA ITEM #1. c) lLICA.Q R[v’fl%W T [sPortatlon Systems Dirj Jim Seitz Administrative Secretary i ‘1 Kelsey Marshall J Secretary II 7 Alexandra Taylor J —_______L _________________ L Transportation OPerationsJ 1 Transportation Maintenance 1 Manager Manager Transportation Design I Transportation Planning j Manager L Manager Chris Barnes Eric Cutshall Robert HansonJ Vangie Garcia AdministratIve Secretar1 _rTransPortatlon PlannerEngineeringSpecialistIllrAdminlsfrauveSecretaryI1 Josef Harnden J John Dan Hasty JBlakeCostaI1fIarketaTrubac(.5 FTE) ________________________ Ethan Belen I _____________________________________________________ Slgnal/EctronIc System Principal Civil Engineer C Program Development Derek Akesson I Coordinator IISupervisor Ronald Mar J _ial/Electronlc Systems 1 ______________________________________________ Heather Gregersen JGregRyan ______________________ f Civil Engineer Ill ______________________ Flora Lee ________________________ Hebe Bernardo Clvii Engineer Ill Civil Engineer III Michelle Faltaous Bob Mahn (.5 FTE)JTechnIcianIll Emily LoganJamesGarfield Keith WoolleyBradJones Kevin Kennedy David Whitmarsh Jr.[Signal/Electronic System 1 Technician II I Christian DeMarco f Traffic Signage &Marking 1Supervisor Russ Evans {Trafflc Maintenance Worker Ill John Wade Traffic Maintenance Worker I ‘1 Cody Bartlett I 0RobertRaban SophalSim j AGENDA ITEM #1. c)