@article{ref1,
title="Subjective hazard assessment of geometric design elements in relation to accident causation",
journal="IATSS research",
year="1998",
author="Zervas, Anastasios and Polak, J. and Kanellaidis, George",
volume="22",
number="2",
pages="86-93",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0386-1112",
doi="",
url="http://dx.doi.org/"
}