Project Summary
This project updated and deployed a freeway safety performance measurement tool. Freeway safety performance is measured by estimating the cumulative risk of different accident characteristics. The project built upon a previous research project that developed the core methodology. The tool evaluates the cumulative risk over time of an accident or a particular kind of accident. The probability is estimated using a model that takes as input only variables that are derived from common inductive loop detectors. The estimated models predict increased risk of any accident occurring, as well as a number of characteristics of those accidents.
