Citation

Hauer E, Quaye K, Liu Z. Transp. Res. Rec. 1993; 1401: 17-25.

Copyright

(Copyright © 1993, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

The probabilistic properties of the process of identifying entities, such as drivers or intersections, for some form of remedial action when they experience N accidents within D units of time are explored. This mechanism for triggering action is referred to as an N-D trigger. On the basis of the probability distribution of the "time-to-trigger", it is concluded that in road safety the problem of false positives is severe, and therefore entities identified on the basis of accident or conviction counts should be subjected to further safety diagnosis. Moreover, the longer the N-D trigger is applied to a population, the less useful it becomes. The performance of the trigger depends on the choice of N and D, and guidance is offered on how best to choose them.

Record URL:
http://onlinepubs.trb.org/Onlinepubs/trr/1993/1401/1401-003.pdf

Language: en