@article{ref1,
title="Heavy truck safety in michigan",
journal="ITE journal",
year="1991",
author="Lyles, R. and Blower, D. and Campbell, K. and Stamatiadis, P.",
volume="61",
number="5",
pages="27-32",
abstract="This article discusses problems related to truck safety including truck exposure data and truck crash data, and summarizes findings of recent research in Michigan. It also suggests directions for future work. It is noted that the differences in safety (as measured by involvement in traffic crashes) between singles and doubles are fairly small and, when only multivehicle crashes are considered, doubles are probably safer. The Michigan study found that, in general, doubles in Michigan are probably safer overall. The study has also shown that truck safety decreases as one moves down the hierarchy of the highway system - the more restrictive geometry of nonlimited-access highways and local roads leads to higher crash rates.<p />",
language="",
issn="0162-8178",
doi="",
url="http://dx.doi.org/"
}