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U.S. Department of Energy
Office of Scientific and Technical Information

Assessment of heavy-duty gasoline and diesel vehicles in California: population and use patterns. Final report, June 1983-March 1985

Technical Report ·
OSTI ID:6326671
The report presents an inventory of Vehicle Miles Travelled (VMT) in California by heavy-duty vehicles (HDV) in each of the 58 counties and 14 air basins. To compile the inventory, PES used data generated by two California Department of Transportation (CAL TRANS) annual studies. These data were supplemented by several types of auxiliary data compiled by a literature search, a special truck traffic survey on 21 different routes selected from city and county roads, and an owner/operator telephone questionnaire on vehicle usage of 622 randomly selected HDV's. Out-of-state truck activities in California were estimated by analyzing data from the 1976 Interstate Transportation and Traffic Engineering Survey and the 1971 Institute of Transportation and Traffic Engineering Survey.
Research Organization:
Pacific Environmental Services, Inc., Santa Monica, CA (USA)
OSTI ID:
6326671
Report Number(s):
PB-85-234920/XAB
Country of Publication:
United States
Language:
English