@article{ref1,
title="Development of Highway Accident Hazard Index",
journal="Journal of transportation engineering",
year="1986",
author="Shen, LLD",
volume="112",
number="5",
pages="447-464",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0733-947X",
doi="",
url="http://dx.doi.org/"
}