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The National Academies

NCHRP 25-17 [Final]

Transportation Effects of the 1997 Changes to the National Ambient Air Quality Standards

  Project Data
Funds: $539,995 ($39,995 from NCHRP 8-36 Task 9)
Research Agency: ENVIRON International Corporation
Principal Investigator: David R. Souten
Effective Date: 3/1/1999
Completion Date: 11/30/2002
Comments: Completed --- Agency report available on request

The objective of this research project was to assess the expected effects of the new NAAQS for ozone and PM 2.5 on transportation planning, the project development process, and implementation of transportation system improvements. In light of standards, the research team examined and assessed probable impacts on conformity; the transportation planning process; the project development process; the NEPA process; and the potential contribution to air-quality attainment by transportation control strategies, transportation systems development, and mobile source technology improvements.

Product Availability:  The research agency's revised draft final report is available on a loan basis.

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