Now Available: DIESEL Final Report
Developing Integrated Emission Strategies for Existing Land Transport (DIESEL)
Diesel combustion is a significant source of harmful pollutants that are damaging to human health in urban areas. While diesel engines are more efficient than gasoline engines, they are a disproportionate contributor to exposure of people to fine particulate matter (PM). The PM emitted by diesel engines is very small, predominantly sub-micron in size which is the size fraction considered most damaging to health. Diesel vehicles are normally not the largest component of a city fleet. In Bangkok, it is estimated that diesel vehicles, while comprising less than 10% of the vehicle fleet, contribute 89% of emissions of PM10 from vehicles. The overall objective of this program is to develop a better understanding of the factors that influence vehicular emissions and to propose cost-effective control options in the context of the political economy of developing countries.
Pollution Control Department, Department of Land Transport, The World Bank, USAID/USAEP
Bangkok, Thailand
1 August 2003
31 December 2004
- Analytical and informational tools to analyze technical and policy options
- Action plans for Bangkok to address the diesel emissions (to be used by the city with possible support from donors, development agencies)
- Draft final and final report
- Website and CD-ROM
- Learning events to disseminate lessons
Component 1: Developing City Specific Database (1 August 2003 - 31 March 2004)
Component 2: Analysis of Policy and Technical Options (1 May 2004 - 31 October 2004)
Component 3: Development of Action Plans and Strakeholder Evaluation (1 November 2004 - 31 December 2004)
Dr. Supat Wangwongwatana
Deputy Director General, Pollution Control Department
supat.w@pcd.go.th
Dr. Jitendra (Jitu) Shah
The World Bank
jshah@worldbank.org
2005 Compendium Project Profile
You can also download the latest files from the Pollution Control Department website:
http://www.pcd.go.th/info_serv/en_air_diesel.html
Estimated Cost
US$2 million
Developing Integrated Emission Strategies for Existing Land Transport for Bangkok
About 100 participants from the government, academe, private sector and representatives from other Asian countries, attended the culminating workshop of the DIESEL project, one of CAI-Asia’s programs/ projects led by the World Bank (12 June 2008). The DIESEL project has resulted to substantial improvement in the processes and knowledge of the Pollution Control Department in addressing emissions from mobile sources. One of the most important achievements in this project is the development of a comprehensive database for Bangkok consisting of vehicle numbers and activity, emissions, air quality, among others. This also included the development of emission factors and drive cycles for various types of vehicles in Bangkok enabling a more accurate assessment of emissions in the city as compared to just simply adapting emission factors and drive cycles from Europe, U.S. and/or Japan. These data were then used in coming up with emission reduction estimates considering different policy packages for existing land transport and correlating this to expected benefits on air quality and health, providing policy makers with a tool for informed decision-making.
The full report of the DIESEL project and workshop presentations are found on http://www.cleanairnet.org/diesel and http://www.pcd.go.th/info_serv/en_air_diesel.html
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