01367640

Component

https://doi.org/10.3141/2270-17

http://scholar.google.com...nson&publication_year=2012

Methods to attribute greenhouse gas emissions from transit vehicles across cities in a multijurisdictional region are explored. Four methods and one submethod are proposed, tested, and evaluated with real-world data from the Bay Area Rapid Transit District, serving the San Francisco Bay Area, California, and the Tri-County Metropolitan Transportation District of Oregon, serving the Portland area. Each methodology is evaluated on the basis of the likely availability of necessary data, ease of calculation, policy implications, and accuracy. Method 1 allocates emissions on the basis of each jurisdiction’s total population and employment as a share of population and employment from all of the region’s jurisdictions that have transit access. Method 2 allocates emissions on the basis of each jurisdiction’s share of vehicle revenue miles traveled within the jurisdiction. Method 3 allocates emissions on the basis of each jurisdiction’s share of linked transit trip origins and destinations weighted by trip distances. Method 4 allocates emissions on the basis of each jurisdiction’s share of boardings and alightings. The methods have clear differences in the amount and type of data and the complexity of calculations required. These differences can be readily compared with the data and analytical resources available to a region to provide a partial ranking of methods. Questions of fairness, accuracy, and policy incentives are complicated by theoretical challenges in assigning responsibility for transit service as well as by the unique urban and transportation contexts of each region. Each region will need to select the method that is most appropriate for its unique circumstances in order to achieve intraregional consistency.

01448713

12-0466

English

pp 142–151

2012

Transportation Research Record: Journal of the Transportation Research Board

9780309223133

Print

Maps; References; Tables

Case studies; Estimating; Greenhouse gases; Methodology; Pollutants; Public transit; Regional transportation

Emissions inventory

Portland (Oregon); San Francisco Bay Area

Environment; Public Transportation; I15: Environment

PRP, TRIS, TRB, ATRI

Feb 8 2012 4:55PM

• Air Quality at Bus Stops: Empirical Analysis of Exposure to Particulate Matter at Bus Stop Shelters
• Alternative Uses of Highway Rights-of-Way: Accommodating Renewable Energy Technologies
• Analysis of Emissions at Congested and Uncongested Intersections with Motor Vehicle Emission Simulation 2010
• Annoyance of Traffic Noise on Roads and Rail
• Applicability of Traffic Microsimulation Models in Vehicle Emissions Estimates: Case Study of VISSIM
• Comparing Tests for Near-Grazing-Incidence Noise Reduction and Sound Absorption Tests for Hot-Mix Asphalt
• Concrete Versus Tailpipes: Importance of Embodied Carbon and Vehicle Emissions in Carbon Footprint of Dedicated Truck Lanes on I-70
• Determinants of In-Vehicle Exposure to Traffic-Induced Emissions
• Determining Location and Design of Cost-Effective Wildlife Crossing Structures Along US-64 in North Carolina
• Effects of Engine Idling on National Ambient Air Quality Standards Criteria Pollutant Emissions from Nonroad Diesel Construction Equipment
• Environmentally Conscious Highway Design for Crest Vertical Curves
• Evaluation of Temperature Effects for Onboard Sound Intensity Measurements
• Exposure of Bicyclists to Air Pollution in Seattle, Washington: Hybrid Analysis Using Personal Monitoring and Land Use Regression
• Generating Heavy-Duty Truck Activity Data Inputs for MOVES Based on Large-Scale Truck Telematics Data
• Modeling Roadway Link PM2.5 Emissions with Accurate Truck Activity Estimate for Regional Transportation Conformity Analysis
• MOVES and AERMOD Used for PM2.5 Conformity Hot Spot Air Quality Modeling
• Predictive Ecocruise Control System: Model Logic and Preliminary Testing
• Quantitative Decision-Making Framework to Evaluate Environmental Commitment Tracking Systems: Colorado Department of Transportation Case Study
• Real-World Measurement and Evaluation of Duty Cycles, Fuels, and Emission Control Technologies of Heavy-Duty Trucks
• Reduction Potential of Environment-Responsive Traffic Control on Roadside Particulate Matter and Nitrogen Oxide Concentrations
• Revisiting Decomposition Analysis for Carbon Dioxide Emissions from Car Travel: Introduction of Modified Laspeyres Index Method