los angeles county metropolitan transportation authority ... · t3 webinar january 22, 2008. 2...
TRANSCRIPT
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Los Angeles County Metropolitan Transportation Authority (Metro)
Metro’s Countywide Signal Priority Program
T3 Webinar January 22, 2008
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Background
In the late 90’s, Metro funded several transit signal priority demonstrations
City of Los AngelesCity of GlendaleCity of LancasterCity of Santa MonicaMetro
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Metro’s Bus Signal Priority Pilot Project
Initiated in January 1999
Multijurisdictional effort aimed at minimizing delay experienced by buses andshortening round trip running times
Develop a preferred signal priority solution for high-ridership corridors traversing multiple jurisdictions with different local traffic control equipment and software
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Program Context
Los Angeles County
89 jurisdictions43 public agencies providing fixed route bus serviceMetro alone operates 191 bus routes with over 1.3 million weekday boardings on average
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Program Context, cont’d
Los Angeles County1,433 square miles in Metro service area
City of Los Angeles = 466 sq. miles88 other jurisdictions = 967 sq. miles
Over 10,000 traffic signals
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Program Funding
LocalProposition C: ½-cent sales tax used to maintain, improve and expand public transit as well as reduce congestion and increase mobility in LA County
FederalCongestion Mitigation and Air Quality (CMAQ) funds through FTA
Prop CCMAQ
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Program Funding
Bus Signal Priority Pilot Project: $4.3 millionMetro Rapid Countywide Signal Priority Expansion
Phase 1: $7.5 millionPhase 2: $8.7 million (estimate)
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Study Tour
LocationsPortland Tri-Met
KITSAP Transit
King County Metro
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Study Tour Objectives
Evaluate different signal priority technology solutions implemented by various transit propertiesStudy the institutional, political, legal, and financial issuesAssess systems integration complexitiesReview adopted signal priority implementation guidelinesDiscuss “lessons learned”
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King County Metro Transit Peer Review
Multiple jurisdictionsSeveral different traffic signal control hardware typesMultiple firmware interfacesDecision to grant priority made at the local control levelHeadway intervals were similar to oursLocal traffic engineering control
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Countywide Signal Priority Pilot Project
Crenshaw Corridor10.5 miles
Adams Blvd. to Redondo Beach Blvd.
54 Signalized Intersections
51 signal-priority-equipped
Jurisdictional PartnersCity of Los Angeles City of InglewoodCounty of Los Angeles
Unincorporated County areas, City of Gardena and City of Hawthorne
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Average Bus Travel TimeUp to 8.8% reduction - northbound PM peak Up to 4.2% reduction - southbound AM peak
Average Delay Due to Red Signals Up to 22.5% reduction - northbound PM peak Up to 12.5% reduction - southbound AM peak
Countywide Signal Priority Evaluation Results
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Countywide Signal Priority Process
Implementpriority
Decisionto grantpriority(DTGP)
Decisionto request
priority(DTRP)
LocateVehicle
On-Bus SystemFunctions
Traffic Signal ControllerFunctions
Bus-to-IntersectionCommunications
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Countywide Signal Priority WLAN Equipment
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Upper Left: Bus priority unit installed on a 45’ 2004 composite NABIUpper Right: Bus priority unit installed on a 40’ 2001 NABILower Left: Tri-Band Antenna installation forWLAN and GPS
Countywide Signal Priority On-Bus Equipment
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Countywide Signal Priority Technologies
Decisionto request
priority
Implementpriority
Decisionto grantpriority
LocateVehicle
On-Bus SystemFunctions
Traffic Signal ControllerFunctions
On-Bus EquipmentIntersection Check-In TechnologiesIntersection Controller Equipment
Bus-to-IntersectionCommunications
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Countywide Signal Priority Technologies
On-Bus EquipmentIntersection Check-In TechnologiesIntersection Controller Equipment
Implementpriority
Decisionto grantpriority
Decisionto request
priority
LocateVehicle
On-Bus SystemFunctions
Traffic Signal ControllerFunctions
Bus-to-Intersection Communications
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Countywide Signal Priority WLAN Equipment
Upper Left: Wireless Access point/bridge pole-mounted hardwareLower Left: Full CSP WLAN cabinet mounted hardware at access point/bridge locationsLower Right: Additional network equipment to provide power over Ethernet for pole mounted equipment
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Countywide Signal Priority WLAN Equipment
Upper Left: Typical WLAN antenna installed on traffic signal control cabinets at client intersection locationsLower Left: Wireless device at client intersection providing serial connection to traffic signal controllerUpper Right: Pole-mounted client device installed at intersections where cabinet line of site is limited
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Countywide Signal Priority Traffic Signal Integration
Upper Left: Type 170 controller running CSP-modified LACO or BI-Trans 233 firmwareUpper Right: Type 2070 controller running CSP-modified LADOT firmwareLower Left: ASC-2 NEMA controller running CSP-modified Econolite firmware
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Countywide Signal Priority Depot WLAN Equipment
Upper Right: WiMAX antenna provides wireless broadband connection to allow off-site monitoring of CSP-equipped busesLeft: WLAN equipment installed at Division 18 to monitor and provide wireless file updates to on-bus CSP units
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4 Metro Rapid Corridors Equipped with CSP
Long Beach Blvd.11.3 Miles / 59 Intersections
6 Jurisdictions
Florence Blvd.7.6 Miles / 41 Intersections
5 Jurisdictions
Hawthorne Blvd.7.7 Miles / 39 Intersections
5 Jurisdictions
Soto St.6.6 Miles / 36 Intersections
5 Jurisdictions
Countywide Signal Priority Expansion Phase I
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Countywide Signal Priority Expansion Phase II
ExpansionAtlantic Ave.
25 Miles128 Intersections14 Jurisdictions
Garvey-Chavez St. 10.7 Miles52 Intersections4 Jurisdictions
Manchester Blvd.7.8 Miles45 Intersections3 Jurisdictions
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Countywide Signal Priority Expansion
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Multijurisdictional Project Implementation: Challenges and Lessons Learned
Project Oversight and CoordinationAllocation of necessary staff resourcesProject schedule to accommodate jurisdictional coordination Issues
Consensus BuildingSchedule/time managementNo “One size fits all” approachManagement, administrative, and technical staff must all be included in the decision making processWork with your jurisdictional partners both collectively and individually to resolve implementation questions and concerns
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Multijurisdictional Project Implementation: Challenges and Lessons Learned
Legal AgreementsRespective legal counsels and technical staff must coordinate with one another to address legal concernsProject scope, roles and responsibilities, on-going operations and maintenance, cooperation, communications, and liability are key elementsLegal impasse can become a showstopper
Corridor SynchronizationSignal timing update
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Multijurisdictional Project Implementation: Challenges and Lessons Learned
Technology MigrationWork with participating jurisdictions to ensure system-upgrade compatibilityDevelop an operations and maintenance plan that accommodates potential hardware and software upgradesContinually evaluate the existing system and look for opportunities to improve performance
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Contact Information
Steven Y. GotaTransportation Planning ManagerSan Gabriel Valley Area TeamLA Metro One Gateway PlazaMail Stop: 99-22-8Los Angeles, CA 90012-2952
Reinland JonesTransportation PlannerSan Gabriel Valley Area TeamLos Angeles County MetroOne Gateway PlazaMail Stop: 99-22-8Los Angeles, CA 90012-2952