@article{ref1,
title="Median barriers in California",
journal="Traffic engineering",
year="1975",
author="Tye, EJ",
volume="45",
number="9",
pages="25-28",
abstract="California's median barrier warrants have been developed through extensive study of freeway cross-median accidents. The data presented show median barrier warrants as a function of average daily traffic and median width. Metal beam, concrete, and cable barrier experiences are compared.   <p>Language: en</p>",
language="en",
issn="0041-0675",
doi="",
url="http://dx.doi.org/"
}