TRB Pubsindex
Text Size:

Title:

INVESTIGATION OF THE EFFECT OF LOCATION OF FREEWAY TRAFFIC SENSORS ON INCIDENT DETECTION

Accession Number:

00334173

Record Type:

Component

Availability:

Find a library where document is available


Order URL: http://worldcat.org/issn/03611981

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. 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. (Author)

Supplemental Notes:

Publication of this paper sponsored by Committee on Freeway Operations.

Monograph Accession #:

01411593

Authors:

Goldblatt, R B

Pagination:

pp 24-31

Publication Date:

1980

Serial:

Transportation Research Record

Issue Number: 773
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309031176

Media Type:

Print

Features:

Figures (8) ; References (6) ; Tables (2)

Uncontrolled Terms:

Old TRIS Terms:

Subject Areas:

Highways; Operations and Traffic Management; I73: Traffic Control

Files:

TRIS, TRB

Created Date:

Oct 28 1981 12:00AM

More Articles from this Serial Issue: