@article{ref1,
title="Evaluation of Two- and Four-Foot Shoulders on Two-Lane State Routes",
journal="ITE journal",
year="2001",
author="Abboud, N. K. and Bowman, Bradley L.",
volume="71",
number="6",
pages="34-39",
abstract="To identify the safety implications of highway shoulders, data were collected for 263 linear miles of two-foot shoulders and 404-linear miles of four-foot shoulders in 11 rural Alabama countries. None of the highways evaluated were within incorporated town or city limits. The data included construction costs of 59 highway segments and a total of 1,763 crashes. Overall, the study does not show the increased construction of cost of four-foot shoulders on state routes to be justified by an increase in traffic safety.   <p>Language: en</p>",
language="en",
issn="0162-8178",
doi="",
url="http://dx.doi.org/"
}