@article{ref1,
title="Crash cushion improvement priority and performance evaluation",
journal="Transportation research record",
year="1986",
author="Houh, Mike Y. and Epstein, Kenneth M. and Lee, Joe",
volume="1065",
number="",
pages="87-97",
abstract="Traffic impact attenuators play a vital role in highway safety. When properly engineered, located, and maintained, impact attenuators can result in the savings of numerous lives and reductions in property damage. However, there have been widespread improper application and use of impact attenuators. The study on which this paper is based focused on location, design, and maintenance of traffic impact attenuators. As a case study, the current management and operational procedures used for the Highway Safety Appurtenances Replacement program of the District of Columbia were evaluated. Traffic characteristics and roadway environmental features that contribute to roadside collisions were identified and analyzed using a multiple regression technique. The analysis revealed that street light luminance, truck percentage, radius of horizontal roadway curvature, and attenuator offset distance are the factors most correlated to roadside collision incidents.<p /><p>Language: en</p>",
language="en",
issn="0361-1981",
doi="",
url="http://dx.doi.org/"
}