@article{ref1,
title="Driver Response to the Amber Phase of Traffic Signals",
journal="Operations research",
year="1961",
author="Olson, Paul L. and Rothery, Richard W.",
volume="9",
number="5",
pages="650-663",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0030-364X",
doi="",
url="http://dx.doi.org/"
}