@article{ref1,
title="Traffic flow phenomena in expressway tunnels",
journal="IATSS research",
year="1985",
author="Koshi, M.",
volume="9",
number="1",
pages="50-56",
abstract="Sometimes after a new tunnel has been opened there is unexpected congestion that leads to delay within the tunnel.  This report found that the traffic capacity of a tunnel is often much less when compared to that of an open section of roadway.  The capacity for a specific tunnel differs according to certain conditions.  These include alignment and illumination.  This congestion can lead not only to delays but the safety hazards.<p />",
language="",
issn="0386-1112",
doi="",
url="http://dx.doi.org/"
}