@article{ref1,
title="Directional median crossovers",
journal="Traffic engineering",
year="1974",
author="Savage, WF",
volume="44",
number="11",
pages="21-23",
abstract="Directional crossovers were constructed through the median approximately 300 feet from the major crossroad, and some or all of the left-turning traffic was required to use the crossovers. The congestion and delays within the entire intersection were immediately reduced. The crossovers are used to handle all left-turning traffic from major crossroads. The results are increased capacity and safer roadways.<p />",
language="",
issn="0041-0675",
doi="",
url="http://dx.doi.org/"
}