The Seattle Squeeze...The Seattle Squeeze Democratized Data Access Webinar Heather Marx, Director of...
Transcript of The Seattle Squeeze...The Seattle Squeeze Democratized Data Access Webinar Heather Marx, Director of...
DepartmentofTransportation
The Seattle Squeeze
DemocratizedDataAccessWebinarHeatherMarx,DirectorofDowntownMobility08/20/2019
DepartmentofTransportation
Presentation overview
• Background• ProblemandGoal• Objectives• SDOTresponse• Whatdidwelearn?• Whatcomesnext?
DepartmentofTransportation
Background: a time of unprecedented growth
DepartmentofTransportation
Background: Closing the Viaduct
• AlaskanWayViaduct(SR99throughdowntownSeattle)• 65-year-oldstructure;weakenedbythe2001NisquallyEarthquake• ClosedpermanentlyonJanuary11
• SR99closedforthreeweeksinJanuary2019• LongesthighwayclosureinthePugetSoundRegion’shistory
• SR99tunnelopenedtotrafficonFebruary4,afteraweekendofcommunityfestivities
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DepartmentofTransportation
A regional effort
DepartmentofTransportation
Problem and goal
Problem ClosingSR99displaced90,000tripsperdayintothedowntowncoreandotherregionalnetworks,whichthenetworkmaynotbeabletoabsorb
SDOT Goal Maintainbroadmobilityandequalaccesstodowntownemployment,commerce,tourismandhousing
DepartmentofTransportation
SDOT Objectives
• Ensuretheefficientmovementofpeopleandgoodsbyavoidingpersistentgridlock
• Expandtheuseandreachoftransitandotheralternativestodrivingalone
• Reducethenumberofdrive-alonevehicletripsdowntown
• Maximizethepublicrightofwayavailableforthetravelingpublic
• MakeSDOTtheindispensablesourceofpublicinformationrelatedtotravelaroundtheregion
• Prioritizesafetyforallusers,particularlyforthosewhoaremostvulnerable
• Workconsistentlyandeffectivelywithpartnerorganizations
DepartmentofTransportation
What SDOT Did
• DevelopedastrategicplanforSR99Closure• StaffedtheTransportationOperationsCenter24/7• Made1,800signaltimingplansandthousandsofreal-timeadjustmentstosignaltiming• Deployedmorethan100people,working12-hourshiftsforthreeweeks• Createdaswingshifttoenhanceresponse
• Implementedtemporaryandpermanenttactics–buslanes,increasedparkingrestrictions• Revokedmorethan50permitstomaximizespaceforthetravelingpublic• CreatedaSqueeze-focusedwebsite–www.seattle.gov/traffic• Briefedhundredsofcommunitygroupsandelectedofficials
DepartmentofTransportation
What we learned
• Frequent,formalcommunicationamongtransportationagencieswascritical• Twice-dailymulti-agencyphonecallsandco-location• Dailyelectedofficialbriefings
• Shared,consistentmessagestothepublic• Dailypressconferences• Socialmediaeffort
• On-going,multifacetedpubliccommunicationsmayhavebeenthesinglebiggestcontributortosuccess
• Lackofrapid,formaldatasharingwasourbiggestdetriment
DepartmentofTransportation
What we learned
• OverallCommute• Peakperiodsskewedaboutanhourearly• Overallvolumedownabout10percent• Nopersistentgridlock• Weatherandincidentsaffectedtraveltimesandcongestion
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DepartmentofTransportation
What we learned • Transit,bicyclesandtelecommuting• TransitcongestionwasvariableinthePM• 14percentincreaseinLinkridership• BicyclecountsatkeylocationsweresubstantiallyhigherthanJanuary2018• Telecommutingplayedabigrole
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SR99ClosurePMPeakCongestionIndex
PM-PeakCar PM-PeakBus
PM-PeakCarBaseline PM-PeakBusBaseline
-15.0% -10.0% -5.0% 0.0% 5.0% 10.0% 15.0%
DrovealoneTransit
Carpool/vanpoolWatertaxiorferry
BikeorwalkEmployershuttle
Telework
ModeSplitChangeDuringtheSR99Closure
DepartmentofTransportation
What we learned
• PermitRevocationandModification:• 50jobsiteswereimpacted• 6citationsand85warningsissued
• Communications:• Excellentinterdepartmentalandinteragencycommunication• Dailymediaavailability;weeklypressconferences
• Safety:• CollisionsdowncomparedtoJanuary2018
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SR99ClosureMediaSentiment
Positive
Negative
Neutral
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Jan-16 Jan-17 Jan-18 Jan-19
SR99ClosureTotalCollisions
DepartmentofTransportation
What Comes Next?
DepartmentofTransportation
Questions?
[email protected]|(206)615-0801
www.seattle.gov/trafficwww.seattle.gov/transportation