Calculators to Estimate Greenhouse Gas Emissions from Public Transit Vehicles

Author:

Weigel Brent A.1,Southworth Frank1,Meyer Michael D.2

Affiliation:

1. School of Civil and Environmental Engineering, Georgia Institute of Technology, 790 Atlantic Drive, Atlanta, GA 30332-0355.

2. Georgia Transportation Institute and School of Civil and Environmental Engineering, Georgia Institute of Technology, 790 Atlantic Drive, Atlanta, GA 30332-0355.

Abstract

This paper reviews calculation tools available for quantifying the greenhouse gas emissions associated with different types of public transit service and the tools’ usefulness in helping a transit agency to reduce its carbon footprint through informed vehicle and fuel procurement decisions. Available calculators fall into two categories: (a) registry- and inventory-based calculators most suitable for standardized voluntary reporting, carbon trading, and regulatory compliance and (b) life-cycle analysis calculators that seek comprehensive coverage of all direct and indirect emissions. Despite significant progress in calculator development, no single calculator contains all information needed by transit agencies to develop a truly comprehensive, life cycle–based accounting of the emissions produced by vehicle fleet operations and for a wide range of vehicle and fuel technology options.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Civil and Structural Engineering

Reference7 articles.

1. Greenhouse Gas Emissions from the U.S. Transportation Sector 1990–2003. EPA 420 R 06 003. U.S. Environmental Protection Agency, Washington, D.C., 2006.

2. Source Energy and Emission Factors for Energy Use in Buildings (Revised)

3. Transit Bus Life-cycle Cost and Year 2007 Emissions Estimation. FTA-WV-26-7004.2007.1. FTA, U.S. Department of Transportation, Washington, D.C., 2007.

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