@article{ref1,
title="Investigation of the effect of location of freeway traffic sensors on incident detection",
journal="Transportation research record",
year="1980",
author="Goldblatt, R. B.",
volume="773",
number="",
pages="24-31",
abstract="This paper presents the results of an investigation into the effect of changes in location of freeway traffic sensors on incident detection. The study was performed with a microscopic freeway computer-simulation model called Integrated Traffic Simulation (INTRAS). Two measures of effectiveness were employed in the study--the detection ratio and the average time to detect (assuming that detection occurs). Consideration was also given to false alarms. A total of four geometric features was studied: (a) main-line sections, (b) weaving sections, (c) lane drops and additions, and (d) changes in vertical and horizontal alignment. <br><br>RESULTS of the study indicated that freeway sensors should be located between 305 and 762 m (1000 and 2500 ft) apart. Decreasing the spacing to 152 m (500 ft) increases the false-alarm rate with little improvement in detection time.<p />",
language="en",
issn="0361-1981",
doi="",
url="http://dx.doi.org/"
}