TECHNICAL GUIDE FOR EQUIPMENT TO DETECT HIGH AND OVERHEIGHT VEHICLES AT LOW BRIDGES

This document describes a system designed to detect vehicles and loads that are too high to pass safely under a bridge and to give visual warning to the driver. In addition, for use with arch bridges, a dual height detection system is described which will direct high vehicles which would strike the side of the bridge arch to adopt a centre of the road approach and will simultaneously warn oncoming traffic of this manoeuvre. The height gauge consists of two infra-red beams, 500mm apart, arranged so that the beams are parallel to the road surface and are set at a height determined by the user. The requirements and the installation of the height gauge, secret warning/diversion sign, and the changes required to provide a dual height system are set out. (TRRL)

• Corporate Authors:

  Department for Transport, England

  Traffic Control and Communications Division, 2 Marsham Street
  London,   England  SW1P 3EB
• Publication Date: 1983-9

Media Info

• Features: Figures; References; Tables;
• Pagination: 23 p.

Subject/Index Terms

• TRT Terms: Arch bridges; Bridges; Detection and identification; Detectors; Equipment; Guide clearances; Height; Infrared radiation; Opposing traffic; Prevention; Safety; Sensors; Speed; Traffic signs; Trucks; Vehicle size; Vehicles; Warning systems
• Uncontrolled Terms: Vehicle height
• Geographic Terms: United Kingdom
• Old TRIS Terms: Detecting devices
• ITRD Terms: 1661: Accident prevention; 3427: Arch bridge; 3455: Bridge; 9115: Detection; 3674: Equipment; 3484: Headroom (bridge, tunnel); 6489: Height; 6797: Infrared; 1236: Lorry; 615: Meeting traffic; 9149: Prevention; 6120: Sensor; 5408: Speed; 553: Traffic sign; 8119: United Kingdom; 1255: Vehicle; 9113: Warning
• Subject Areas: Bridges and other structures; Highways; Motor Carriers; Operations and Traffic Management; Safety and Human Factors; Security and Emergencies; Vehicles and Equipment; I73: Traffic Control;

Filing Info

• Accession Number: 00385512
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: MCH 1364 Monograph
• Files: ITRD, TRIS
• Created Date: Jun 28 1984 12:00AM