Development of multivariate exposure and fatal accident involvement rates for 1977
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1985-10-01
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Edition:Final report
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NTL Classification:NTL-SAFETY AND SECURITY-SAFETY AND SECURITY;NTL-SAFETY AND SECURITY-Human Factors;
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Abstract:The need for multivariate accident involvement rates is often encounted in
accident analysis. The FARS (Fatal Accident Reporting System) files contain
records of fatal involvements characterized by many variables while NPTS
(National Personal Transportation Survey) contains reports of trip records
similary characterized by many variables. When the dassificatory variables
available in both data bases are examined the following are indent!fled as of the
most interest in accident analysis:
Driver Age
Driver Sex
Vehicle Weight
Vehicle Age
Land Use (urban/rural)
Season (winter/summer)
Time of Day
Number of Occupants
The fatal involvement data (from FARS) and the VMT data (from NPTS) were
separately classified by these variables (each limited to two or three levels).
Missing data was accounted for. Missing weight data was estimated, where
possible, based on make, model, and/or other vehicle characteristics.
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