Citation

Danielsson S. Accid. Anal. Prev. 1988; 20(4): 289-298.

Affiliation

Swedish Road and Traffic Research Institute, Linköping.

Copyright

(Copyright © 1988, Elsevier Publishing)

DOI

unavailable

PMID

3415760

Abstract

In an earlier paper [Danielsson, 1986], we studied the problem of estimating the safety effect of a countermeasure on the expected number of accidents at road junctions when high-accident sites are selected for the study. Often, however, the countermeasure leads to varying effectiveness on different types of accidents. This paper is a generalization in that we estimate effects of countermeasures for each type of accident. A major result, for which empirical support is provided, is that the expected regression effect is the same for all types of accidents.