@article{ref1,
title="Discussion of "Rail-Highway Grade Crossings: Their Safety and the Effect of Warning Devices"",
journal="Proceedings: American Association for Automotive Medicine Annual Conference",
year="1986",
author="Kulmala, Risto and Thorson, Jan",
volume="30",
number="",
pages="263-270",
abstract="Hauer and Persaud demonstrated the importance of the accident history of rail-highway grade crossings for estimates of collision risks. Such estimates are important for an optimal allocation of resources available for prevention. They also explained the bias in results of &quot;before and after&quot; studies of effects of warning devices. Injury limitation of collisions is a supplementary approach. The relation between types of impact and nature of injury in grade crossing collisions has been studied. The severity of the collisions might be diminished by a change of locomotive front design.<p />",
language="",
issn="0892-6484",
doi="",
url="http://dx.doi.org/"
}