OVERHEAD MICROWAVE DETECTORS CUT OUT THE LOOP
This article presents two case studies to show the benefits of modern overhead radar-based vehicle detectors, offering easier installation and substantially lower maintenance costs than traditional magnetic loop detectors. Microwave motion detection is a field-tested, cost-effective, efficient method of vehicle detection. At a major crossroads, with five traffic lanes on each road, it was necessary to keep traffic moving at an optimal pace, so that eight TC-26B overhead vehicle detectors were installed for this eight-phase application. The signal settings were modified according to whether left-turn or through vehicle detectors were activated; the modifications were appropriate extensions of the green times for the corresponding phases. When a critical signal-controlled T-junction was being reconstructed, it was necessary to close one of the streets at certain points during the summer. This required the temporary application of four TC-20 all-purpose overhead vehicle detectors, one for each phase. The TC-20 uses a wide-beam microwave signal to detect vehicles moving in one direction only, and can very easily be moved between different sites. For the covering abstract see IRRD 877920.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/13569252
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Corporate Authors:
UK and International Press
120 South Street
Dorking, Surrey RH4 2EU, England -
Authors:
- CLIPPARD, D
- Publication Date: 1996
Language
- English
Media Info
- Features: References;
- Pagination: p. 118-20
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Serial:
- TRAFFIC TECHNOLOGY INTERNATIONAL '96. ANNUAL REVIEW ISSUE
- Publisher: UK and International Press
- ISSN: 1356-9252
Subject/Index Terms
- TRT Terms: Costs; Intersections; Maintenance; Radar; Sensors; Traffic control; Traffic lanes; Traffic signals; Vehicles
- Uncontrolled Terms: Decreases
- ITRD Terms: 224: Cost; 427: Cross roads; 9009: Decrease; 455: Junction; 3847: Maintenance; 6738: Radar; 6120: Sensor; 654: Traffic control; 2827: Traffic lane; 565: Traffic signal; 1255: Vehicle
- Subject Areas: Finance; Highways; Maintenance and Preservation; Operations and Traffic Management; Vehicles and Equipment;
Filing Info
- Accession Number: 00723055
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD
- Created Date: Jul 26 1996 12:00AM