@article{ref1,
title="Correspondence. road traffic calculations",
journal="Journal of the ICE",
year="1941",
author="Clayton, Arthur John Hamblin and Ryves, R. A. and Dawson, F. G. Royal",
volume="16",
number="8",
pages="588-594",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0368-2455",
doi="10.1680/ijoti.1941.13689",
url="http://dx.doi.org/10.1680/ijoti.1941.13689"
}