@article{ref1,
title="Cost of Driving Comfort and Convenience for Two-Lane Highways",
journal="Journal of transportation engineering",
year="1989",
author="Sharma, S. C. and Lingras, PJ",
volume="115",
number="3",
pages="283-297",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0733-947X",
doi="",
url="http://dx.doi.org/"
}