Citation

Kuang Y, Qu X, Weng J, Etemad-Shahidi A. PLoS One 2015; 10(9): e0138617.

Affiliation

Griffith School of Engineering, Griffith University, Gold Coast, Australia.

Copyright

(Copyright © 2015, Public Library of Science)

DOI

10.1371/journal.pone.0138617

PMID

26398416

Abstract

With the merit on representing traffic conflict through examining the crash mechanism and causality proactively, crash surrogate measures have long been proposed and applied to evaluate the traffic safety. However, the driver's Perception-Reaction Time (PRT), an important variable in crash mechanism, has not been considered widely into surrogate measures. In this regard, it is important to know how the PRT affects the performances of surrogate indicators. To this end, three widely used surrogate measures are firstly modified by involving the PRT into their crash mechanisms. Then, in order to examine the difference caused by the PRT, a comparative study is carried out on a freeway section of the Pacific Motorway, Australia. This result suggests that the surrogate indicators' performances in representing rear-end crash risks are improved with the incorporating of the PRT for the investigated section.

Language: en