Global trends in motor vehicle pollution control: 1996 State of the art and remaining problems

A great deal has been accomplished around the world in reducing motor vehicle pollution control. Achievement of this goal generally requires a comprehensive strategy encompassing emissions standards for new vehicles, clean fuels, strategies designed to assure that vehicles are maintained in a manner which minimizes their emissions and traffic and demand management and constraints. These emission reduction goals should be achieved in the least costly manner. This paper will review several examples of successful policies and advances leading toward clean vehicles and fuels.