AUTO OCCUPANCY PARAMETER VARIATIONS
Studies in Minnesota show that the seasonal variations in occupancy parameters observed in 1974 were due to the energy crunch, and that 1975 data variations were significant only at a 90 percent confidence level, suggesting that real differences must be assumed to exist until proven otherwise. The inconclusive results suggest the need for further studies to accurately determine the nature of seasonal changes. The studies showed that car pooling increased significantly in 1973/1974, and that the energy crunch influence did not continue beyond 1974. Significant differences occur in occupancy parameters at different subareas of a corridor, and such variations could be used to pinpoint special focus areas for promoting carpooling or preferential treatments. Auto occupancy parameters vary significantly from day-to-day. Individual site variations may not follow the area pattern. It was also observed that carpool promotion efforts have not generated measurable increases in occupancy parameters. The study parameters and the data sources are described, and details are given of the sampling procedure and the statistical design.
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Corporate Authors:
Institute of Traffic Engineers
2029 K Street, NW
Washington, DC 20006 -
Authors:
- Benke, R J
- Sjoberg, R A
- Publication Date: 1977-3
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 21-27
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Serial:
- Traffic Engineering
- Volume: 47
- Issue Number: 3
- Publisher: Institute of Traffic Engineers
Subject/Index Terms
- TRT Terms: Automobiles; Carpools; Energy resources; Loess; Sampling; Seasons; Statistical analysis; Vehicle occupancy
- Uncontrolled Terms: Energy crisis; Parameters; Seasonal variations
- Subject Areas: Data and Information Technology; Energy; Highways; Safety and Human Factors;
Filing Info
- Accession Number: 00157272
- Record Type: Publication
- Files: TRIS
- Created Date: Nov 23 1977 12:00AM