TRIS Online Record

Title	USING SIGNAL-TO-NOISE RATIO AS EVIDENCE TO DETECT PRESENCE-ABSENCE OF VEHICLES
Accession No	00681562
Authors	Hussain, T M
Journal Title	ITE Journal Vol. 65 No. 7
Corp. Authors / Publisher	Institute of Transportation Engineers
Publication Date	19950700
Description	p. 46; Figures(5); References(9)
Languages	English
Abstract	This article describes the elements and installation of a photodetector sensor system for traffic surveillance applications. Overhead infrared vehicle sensors are designed and tested. The system detects moving and stationary vehicles depending on the amount of reflected power received by the sensor. The results reveal that the signal-to-noise ratio exceeds the minimum value, which is necessary to distinguish between the reflected signal from the roadway and the surface of a vehicle. In addition, the overhead infrared active-laser vehicle detector system is capable of operating under all weather conditions.
TRT Terms	Chemical elements ; Implementation ; Infrared detectors ; Installation ; Lasers ; Reflection ; Safety ; Sensors ; System design ; Traffic surveillance ; Vehicle detectors
Other Terms	Elements; Reflecting surfaces; Systems design; Vehicle detection
Subject Areas	H54 OPERATIONS AND TRAFFIC CONTROL; I73 Traffic Control
Availability	Institute of Transportation Engineers Find a library where document is available Order Document: http://worldcat.org/oclc/4061418
TRIS Files	HRIS
Database	TRIS Online

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