An Update on Public Transportation's Impacts on Greenhouse Gas Emissions

The concerns for sustainability and climate change are intensifying. Local leaders, together with many public and private entities, are developing climate action plans with strategies to solidify their commitment to slowing climate change and reducing greenhouse gas (GHG) emissions. Many public transportation agencies are committed to reducing their GHG emissions and contributing to improved sustainability. Past research has indicated that public transportation plays an important role in reducing GHG emissions. About a decade ago the Transit Cooperative Research Program (TCRP) conducted several research projects related to public transportation and the reduction of GHG emissions. It is important that the research on public transportation’s national impacts on GHG emissions be updated since there have been significant changes during the past decade including, but not limited to, strides in energy efficiency in the bus and rail fleets through use of alternative fuels and regenerative braking. The objective of this research is to update aspects of previous TCRP research described earlier on public transportation’s role in reducing GHG emissions and supporting sustainability.


  • English


  • Status: Completed
  • Funding: $90000
  • Contract Numbers:

    Project J-11, Task 36

  • Sponsor Organizations:

    Transit Cooperative Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC    20001

    Federal Transit Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Performing Organizations:


  • Principal Investigators:

    McGraw, Jen

  • Start Date: 20191029
  • Expected Completion Date: 20210124
  • Actual Completion Date: 20210124

Subject/Index Terms

Filing Info

  • Accession Number: 01857995
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project J-11, Task 36
  • Files: TRB, RIP
  • Created Date: Sep 20 2022 11:44AM