CO2 Emissions Methodology for Transport

The Independent Evaluation Department (IED) of the Asian Development Bank (ADB) carried out a special evaluation study (SES) on the impact of carbon emissions from transport projects. The SES aimed to

  • Estimate the carbon footprint of ADB’s transport sector assistance by looking at the potential CO2 emissions from construction and operations of the completed and ongoing projects
  • Assess what could have been the impact on GHG emissions if ADB had incorporated climate change mitigation measures in the project designs.

In parallel with this ADB study, the United Nations Environment Program (UNEP) has commissioned a concurrent effort to evaluate the GHG impacts of Global Environmental Facility (GEF) projects, based on a review of 139 GEF projects between 2001 and 2009. The World Bank, InterAmerican Development Bank (IDB), UNEP and ADB recognize the importance of coordinating efforts to develop a common GHG appraisal tool framework for the transport sector that will be universally preferred and accepted.

Clean Air Asia and ITDP with support from the above two studies have developed a detailed set of methodologies for CO2 computations from a variety of transport projects. Spreadsheet models were developed in Microsoft Excel format for the following land-based transport modes:

      1. Rural Roads
      2. Urban Roads
      3. Bike Projects
      4. Rural Expressways
      5. LRT/MRT Projects
      6. BRTS Projects
              7. Railways (sketch analysis of emissions only)

The methodologies was applied to existing ITDP projects in six metropolitan areas, and resulted in case studies. Training was provided to a number of model users and future model developers through workshops in several Asian cities.

Related Links:

Donor: ADB and ITDP (GEF funds)

Duration: January – August 2010

Clean Air Asia contact: