Citation

Roh JW, Bessler DA, Gilbert RF. Accid. Anal. Prev. 1999; 31(1-2): 55-61.

Affiliation

Department of Economics, Texas A and M University, College Station 77843, USA.

Copyright

(Copyright © 1999, Elsevier Publishing)

DOI

unavailable

PMID

10084618

Abstract

We show how statistical methods based on directed graphs may be useful in modeling traffic fatalities by comparing models specified using directed graphs to a model originally developed by Peltzman. The comparison uses Peltzman's original data, as well as up-dated data (and coefficients) through 1993. Out-of-sample forecasts of traffic fatalities from Peltzman's model are compared with those from a model constructed using directed graphs over data for the more recent period. The directed graphs model outperforms Peltzman's model in root mean squared forecast error.