Citation

Wright PH, Hall JW, Zador PL. Transp. Res. Rec. 1983; 926: 1-7.

Copyright

(Copyright © 1983, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

This project sought to determine the effectiveness of various low-cost countermeasures for reducing the number of fixed object and overturning crashes. A survey was conducted of the 50 state highway and transportation departments. Responses to the questionnaire show that all states are using chevron markers, and a majority are using delineators and standard warning signs. Respondents thought that these devices were most effective for reducing run-off-the-road crashes, although little documentation was supplied to support this contention. Most states have established procedures for selecting the most hazardous run-off-the-road sites, but few have formal guidelines for selecting the specific countermeasures for use at these sites. A critical analysis is needed to determine the actual effectiveness of several commonly used low-cost countermeasures. (Author)

Record URL:
http://onlinepubs.trb.org/Onlinepubs/trr/1983/926/926-001.pdf

Language: en

Keywords

HIGHWAY SYSTEMS; COST ACCOUNTING - Analysis; HIGHWAY SIGNS, SIGNALS AND MARKINGS - Efficiency