@article{ref1,
title="Urban Traffic Crashes: New York City Responds to the Challenge",
journal="Transportation quarterly",
year="1991",
author="Retting, Richard A.",
volume="45",
number="4",
pages="571-580",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0278-9434",
doi="",
url="http://dx.doi.org/"
}