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Published byJack Ronald Rodgers Modified over 9 years ago
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PRESENTED TO: CTP 2040 POLICY ADVISORY COMMITTEE PRESENTED BY: RON WEST AND MICHELLE BINA CAMBRIDGE SYSTEMATICS CTP 2040 Scenario Strategies and Analysis Framework August 19, 2014
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Overview California Statewide Travel Demand Model (CSTDM) Scenario strategies Transportation-based changes to reduce GHG emissions Analysis framework CSTDM - or - Other methods Distinct policy - or - Aspirational objective
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UPDATE ON CALIFORNIA STATEWIDE TRAVEL ANALYSIS MODEL CSTDM
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CSTDM Update CSTDM Update is now complete 2010 base year (plus Year 2010 backcast) Year 2015, 2020, 2035, 2040 and 2050 horizon years
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CSTDM System Models Travel Modes Short Distance Personal Long Distance Personal Short Distance Truck Long Distance Truck External Travel Auto Single Occupant √√√ Auto 2 persons √√√ Auto 3+ persons √√√ Transit (bus & urban rail) √ Bicycle √ Walk √ Air √ Intercity Rail √ Trucks (3 classes) √√√
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CSTDM Zones and Network (Current Model) 92,000+ nodes 250,000+ links Multi-modal 5454 internal zones 53 external zones
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Contributions to Statewide Travel PersonalTruck ExternalTotal Short DistLong DistShort DistLong Dist Total Person Trips93%0.20%7%0.06%0.34%100% Total Vehicle Trips88%0.15%12%0.11%0.30%100% Total VMT (Auto/Truck ) 79%10%3%2%6%100%
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CSTDM VERSUS OFF-MODEL SPECIFIC POLICY OR ASPIRATIONAL OBJECTIVE Analysis Framework
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Primary objective is to analyze impacts of all strategies using a common metric Reduction in vehicle miles travel Year 2040 average weekday daily condition Additional objective is for clear documentation Key input assumptions Outcomes presented as apples-apples
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Analysis Framework Matrix - Examples Analysis Method: Policy or Goal? Specific Policy Aspirational Objective California Statewide Travel Demand Model Road user chargeNone anticipated Off-ModelITS elementsEco driving
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Off Model Data Sources MPO Sustainable Community Strategies ARB policy papers CAPCOA Moving Cooler TCRP 118 (Bus rapid transit) Data Sources converted to changes in VMT
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PRICING TRANSPORTATION ALTERNATIVES MODE SHIFT OPERATIONAL EFFICIENCY Scenario Strategies
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Pricing Strategies Road user charge (RUC) Gas tax Congestion pricing Expressed as auto operating costs Function of fuel costs and vehicle efficiency
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Pricing – Road User Charge CSTDM RUC sensitivity tests Year 2010 doubling of auto operating costs 23% VMT decrease (22 cent increase in auto operating costs) Year 2040 73% increase 17% VMT decrease (16 cent increase) Year 2040 9% increase 3% VMT decrease (2 cent increase)
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Analysis Framework - Pricing Analysis Method: Policy or Goal? Specific Policy Aspirational Objective California Statewide Travel Demand Model Road User Charge Off-Model
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Transportation Alternatives Telecommute Carpoolers Carsharing Assessed off-model // aspirational goals
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Transportation Alternatives Carsharing MTC: 1.3% reduction in VMT given 5% increase in carsharing adoption rates Applied to short distance personal travel model Converts to 1.1% reduction in total VMT. SACOG: Lower rate of VMT reduction – 0.12% Telecommuting SACOG: VMT reduction between 0.13% & 0.39% Carpooling Under Analysis
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Analysis Framework – Transportation Alts Analysis Method: Policy or Goal? Specific Policy Aspirational Objective California Statewide Travel Demand Model Off-Model Increased: Telecommute Carpooling Carsharing
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Mode Shift Transit improvements Bicycle improvements Pedestrian improvements Carpool changes Transit and carpool assessed with CSTDM Bike and walk assessed off-model
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Mode Shift - Transit Analyze high-end 2040 transit alternative Double bus and train service Double operating speeds Reduced or free fares Convert x% of bus routes to BRT Timed transfers Reduced fares on high-speed rail Will be forecasted using CSTDM Except BRT expansion – Off model
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Mode Shift – Bicycle & Pedestrian Low end Calculate VMT reductions based on value of investments High end Assume mode shares are doubled for bike and walk 50% of trips come from auto modes Average trip lengths: Bike 3.0 miles; Walk 0.25 miles Results in 0.4% VMT reduction for bike; 0.2% for walk
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Mode Shift - Carpools Raise statewide HOV occupancy to 3+ Draft model result shows 2% reduction in VMT Additional analysis needed Add HOV lanes Gap closures Interregional connectors Mode run not completed yet
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Analysis Framework – Mode Shift Analysis Method: Policy or Goal? Specific Policy Aspirational Objective California Statewide Travel Demand Model Most Transit Improvements Carpools/HOV Off-Model BRT Bicycling Walking
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Operational Efficiencies Incident/Emergency management Caltrans TMS Master Plan ITS/TSM Eco-driving All assessed as off-model policies Except Eco-Driving (off-model aspirational goal)
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Operational Efficiencies ITS/TSM SACOG: 0.19% to 0.62% reduction in VMT Other Measures TBD
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Analysis Framework – Operational Efficiency Analysis Method: Policy or Goal? Specific Policy Aspirational Objective California Statewide Travel Demand Model Off-Model Incident/Emergency management Caltrans TMS Master Plan ITS/TSM Eco driving
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Next Steps
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Complete literature review - off-model strategies Continued vetting of assumptions Refinement and analysis of strategies Develop final CTP 2040 Scenario 2 in the fall Presentations to upcoming PAC and TAC meetings
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