New Zealand accident prediction models and their applications.

Accident prediction models have been developed for urban and rural intersections and links and for other sites, including isolated curves, narrow bridges, single lane bridges and railway crossings. This paper details the generalised linear models that have been developed from reported injury accident data and traffic counts in New Zealand for major accident types and total accidents. Refinements have been made to the methods used to calculate the goodness-of-fit testing statistic, the deviance function to address the low mean value problem. Applications of the models are discussed, including economic evaluation, performance measures and safety management systems, and optimisation networks flow patterns to improve safety. (Author/publisher) For the covering entry of this conference, please see ITRD abstract no. E208431.