Citation

Wass C. Accid. Anal. Prev. 1982; 14(5): 365-369.

Copyright

(Copyright © 1982, Elsevier Publishing)

DOI

unavailable

PMID

unavailable

Abstract

The present study explores a mathematical method for deriving estimates of road-user exposure and liability from accident frequency statistics. Though this approach is somewhat unconventional it is logical in as much as accident occurrence can be considered to be a function of both accident opportunities (i.e. exposure) and personal situational factors (i.e. liability). Isolation of an accident liability component allows for an estimate of exposure, an estimate that is far cheaper and quicker to obtain than those based on survey methods for determining road-user exposure. The mathematical estimates derived here compared favorably with several conventional estimates of road-user exposure. This paper summarizes a book written by the author [Wass, 1977].