@article{ref1,
title="Study of the safety of one-way and two-way bridges on new zealand state highways",
journal="Traffic engineering and control",
year="1983",
author="Frith, W. J.",
volume="24",
number="8",
pages="370-371",
abstract="The safety records of New Zealand State Highway one-way and two-way bridges with similar traffic flows are compared. It is found that the overall accident rates per bridge and per 10,000 vehicles for one-way bridges are generally higher than those for two-way bridges.<p />",
language="",
issn="0041-0683",
doi="",
url="http://dx.doi.org/"
}