@article{ref1,
title="Another view on vehicle change intervals",
journal="ITE journal",
year="1983",
author="Butler, J.",
volume="53",
number="3",
pages="44-48",
abstract="The change interval is the most important aspect of safe signal timing, and one of the most controversial. It is the purpose of this paper to provide a rational change interval method. The proposal outlined herein includes a yellow interval which conforms to driver behavior followed by all-red clearance interval.<p />",
language="",
issn="0162-8178",
doi="",
url="http://dx.doi.org/"
}