Traffic fatalities, Peltzman's model, and directed graphs. Academic Article uri icon


  • 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.

published proceedings

  • Accid Anal Prev

author list (cited authors)

  • Roh, J. W., Bessler, D. A., & Gilbert, R. F.

citation count

  • 7

complete list of authors

  • Roh, JW||Bessler, DA||Gilbert, RF

publication date

  • January 1999