Innovations in Transportation and Air Quality: Twelve Exemplary Projects

As part of the Congestion Mitigation and Air Quality Improvement Program (CMAQ), the San Francisco freeway service patrol has been in operation since August 1992.

Content type
Source
Source Publication Date
01/02/1996
Publisher
Federal Highway Administration, U.S. DOT
Other Reference Number
Report No. FHWA-PD-96-016