@article{ref1,
title="Field Traffic Sign Handbook for local highway agencies",
journal="Transportation research record",
year="2011",
author="Orr, David P.",
volume="2203",
number="",
pages="126-131",
abstract="Using the &quot;Manual on Uniform Traffic Control Devices&quot; in the field is difficult in New York State because of the need to follow two voluminous documents. There is a need for a field handbook that provides information on the most commonly used signs. The &quot;Traffic Sign Handbook&quot; has been produced in New York State since the mid-1980s. This handbook has been updated to meet changing standards. Several figures, graphics, tables, and other components make the handbook especially valuable.<p />",
language="en",
issn="0361-1981",
doi="10.3141/2203-16",
url="http://dx.doi.org/10.3141/2203-16"
}