Developing CTA Performance Based Concept
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Presentation Transcript
Developing CTA Performance Based Concept Transit Agency Subcommittee Meeting October 26, 2016 Diamond Bar, California
Meeting Objective • To discuss questions that are needed to develop details of CTA’s performance based concept • Continue discussion on the latest cost information to identify areas of consensus and additional needs
Considerations of Alternatives Health and Environment Benefits • Protect public health • Reduce NOx, PM, GHGemissions • Reduce other environmental risks Regulation and Incentive • Support existing programs • Promote new actions , no double counting • Ensure equal treatment of transit fleets • Ensure regulation is implementable and enforceable, and results are quantifiable • Impacts on funding opportunities Disadvantaged Community (DAC) • Ensure DAC benefits, and equitable benefits distribution Transit Agency • Improve transit efficiency • No service cuts • Enhance mobility, first/last-mile connectivity Industry • Provide clear market signal for zero emission transit • Build on past investments in zero emission technologies • Build economy of scale for zero emission buses
Advanced Clean Transit -What is Achievable? • Can we enhance passenger service and mobility • Need to understand advanced technology opportunities and barriers • How to address initial costs and total ownership costs • Balance potential risks, uncertainties and rewards • Complement existing programs and policies • Can we achieve zero emission transit systems • What is the appropriate role of incentives
Complementing Existing Programs • Achieve PM, NOx and GHG reductions beyond existing programs (cannot double count) • Engine emission standards (normal replacements) • Sustainable Communities and Climate Protection (SB 375) • Low Carbon Fuel Standard • Emission reductions from new measures must be real, quantifiable, verifiable, and enforceable
CTA Concerns • ZEB technology neither offer the range nor the reliability • Significantly higher upfront capital cost and expensive infrastructure construction of ZEBs • No significant funding to cover the increased cost of ownership of ZEBs and to facilitate the transition to zero emission fleets
CTA Proposed Framework • To authorize transit agencies to more cost-effectively procure renewable energy • Technology-neutral, more flexibility and best-suited for operational needs • Adoption of a combination of commercially viable and cost-efficient technologies to achieve the performance-based and petroleum targets
What is a Performance Based Approach? • Can be like existing Transit Fleet rule for buses • PM percent reduction from individual fleet baseline year • Meet preset NOx standard goal by point in time • Did not address green house gas emissions • Near-term end goal • Did not include other modes, mobility enhancements, nor other transit system improvements • Can take a broader approach • Include range of vehicle modes and technologies • Incorporate transit system efficiency and mobility • Set GHG, PM and NOx reduction goals or targets • May need multiple baselines and targets • Milestones to long term end goal
Defining CTA’s Performance Based Approach • How to develop concept as envisioned by CTA? • Key areas for discussion • Scope of a transit system • Metrics and surrogates to simplify approach • Establishing a baseline and targets • Addressing key variables like fuel types, vehicle mixes • General questions
What’s the Scope of the Concept? • Controlled by transit agency? • Public private partnerships? • Buses, rail, ferries, van pools, bike sharing, car sharing, micro transit, ride sourcing services, taxi voucher, Uber pool discounts, single fare tickets, etc? • What about potential cross over with SB 375?
Key Metrics and Surrogates • Needs to address PM, NOx and GHG • Surrogates can simplify accounting mechanism • Can we use data that is already reported and collected? • Would new reporting required? If so what and how?
Metric for PM, NOx and GHG Emissions • PM and NOx emissions dependent on vehicle type, engine emissions by model year, drive cycle, vehicle usage characteristics, fuel type, other • GHG emission depends on vehicle type, fuel type, engine/vehicle efficiency and usage characteristics, other • Total fleet emissions change with fleet size, mode shifting, or changes in vehicle utilization • Emissions decline with normal replacements • Should it be normalized with transit system efficiency metric?
NOx and PM Emission Metrics? • Which metrics to use, for varying useful life, mode and emission factors, fuel types, other? • Use engine standards, or inventory emissions? • How to address fleet variations? • Bus types (cutaway, standard, BRT, articulated) • Off-road (light rail, heavy rail, ferry, other) • Other (van pools, car sharing, enhanced mobility) • How to address expected transit system growth? • What are the data sources to track progress?
Engine Standards Reduce Emissions with Normal Replacements Urban Bus Engine Emissions Standards for NOx PM emissions standards have been 0.01 g/bhp-hr since 2004.
Off-Road Engine Standards (Locomotives and Marine Vessels) For comparison PM emissions standards for new on-road engines are 0.01 g/bhp-hr vs 0.1 g/bhp-hr.
GHG Emissions Metrics • Which metrics to use, for varying useful life, mode and emission factors, fuel types, other? • Should RNG and RD accounted differently, because their GHG reduction are already part of LCFS and baseline? • Use LCFS defaults, vary with CI on bill, treat them the same? • Should a single metric like energy use be used across the fleet? • How to address expected vehicle efficiency improvements? • How to account for mode shifting and other mobility programs? • How to address potential overlap with actions already expected with SB 375 or normal trends?
Transit System Efficiency Metrics • Can single metric be used for different modes? • Passenger miles, seat miles, total connected trip length/population or other? • What would be source of data? • National transit database, ARB reporting, other • Is there sufficient detail by mode to calculate emissions • Is additional reporting needed for other modes • Is historical information needed? • Any notable change in data collection methodology • Any issues with incomplete or missing data
Fleet Passenger Loading (All Modes) *Was calculated by all modes listed in NTD data
Establishing Targets • How to ensure reductions of each pollutant (NOx, PM, GHG)? • Set unique target for each fleet based on existing mix of different modes, or • Set same percentage emission reduction goal for all fleets regardless of their starting point • Set baseline and targets first for a bus only fleet and then apply same reduction to all fleets? • Set different targets for mixed fleets vs bus only fleets? • How to address actions already taken? • Other?
How to Address Expected Growth • How to account transit system growth in the baseline and target (national trends, California trends, other)? • What metrics for system growth trends should be used? • Should trend be applied equally to all fleets? • How to factor expansion of enhanced mobility?
How to Set GHG Emission Baseline and Targets? GHGWTW Emissions for Statewide Bus Fleet Baseline Rule Phase-In Assumptions: Baseline: Includes Low Carbon Fuel Standard Regulation Rule Phase In: Reflects 33% RPS starting 2020 and 50% RPS in 2030.
How to Set NOx Baseline and Targets? Bus only fleet example of business as usual replacements without growth (Illustrative) Note: Figure represents emissions trend for a single bus fleet without changing number of buses and miles traveled.
More Questions • How to minimize unintended consequences? • Guarding against service cuts to increase efficiency (especially for transit dependent riders and in DACs)? • Ridership fluctuations beyond the control of transit agencies? • Are there any transit fleet timing concerns with meeting milestones and normal fleet planning? • How to assess costs for existing and new innovative methods? • What tools are needed to allow for future planning?
Next Steps • Summarize transit fleet responses on key issues • Develop proposed CTA methodology with best available information for review and comment • Identify any remaining questions • Developed proposal will help confirm if key goals are met • Seek feedback on concept for different fleet situations • Revise per CTA recommendation
Cost Analysis Update • Cost Subgroup Lifecycle Cost Model shared with ARB on October 14, 2016 • Continue to work towards common inputs and understanding • ARB seeking comments on cost information documents