Citation

Gupta RC, Jain RP. Transp. Res. Rec. 1975; 541: 50-54.

Copyright

(Copyright © 1975, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

This study identified and defined which roadway elements are statistically correlated with accident occurence and evaluated the relative merit of each element as an index of accident prediction. Of the three principal factors associated with accidents, the vehicle, the driver, and the roadway, this paper considers contribution of the roadway. Four selected geometric elements, roadway width, horizontal curvature, vertical clearance, and restricted sight distance were rated for adequacy, and these ratings were then correlated with accident rates. Multiple linear regression analyses were performed to examine these relationships. The resulting correlation coefficients were quite small. Of the four geometric characteristics considered, restricted sight distance and horizontal curvature appear to have some effect on accident rates and vertical clearance appears to have no effect.

Language: en