AID AND TRAFFIC MONITORING IN TUNNELS USING VIDEO DETECTION

This paper reviews some detection principles, and a general system using video detection modules for traffic monitoring and incident detection in road tunnels. Video detection can detect accidents, stopped vehicles in a stop niche, very slow vehicles, speeding vehicles, vehicles driving in the wrong direction, and tunnel queues. It can collect normal traffic data for statistics, ventilation control, and tunnel calculations. The best video camera position is usually as high as possible, near the middle of the tunnel, and the best results are obtained with cameras using a variable and slow-moving iris. The paper outlines the functions that can be performed by state-of-the-art video detectors, and the parameters and events that they can collect in tunnels. It then lists the interconnected elements, normally used in a modern automatic incident detection (AID) system in a tunnel, and describes the Traficon approach to video detection, using a modular solution. This system has facilities for: (1) traffic management by exception, where the manager's task is simplified by automatic control functions wherever and whenever possible; (2) pro-active traffic control, to prevent incidents as long as possible; and (3) reactive traffic management, based on incident detection. Experience from detectors installed in tunnels is outlined.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/1463242X
• Corporate Authors:

  NEWNORTH PRINT LTD

  PO BOX 452
  KEMPSTON, BEDFORD,   United Kingdom  MK43 9PL
• Authors:
  • VERSAVEL, J
• Publication Date: 1999

Language

• English

Media Info

• Pagination: p. 19-23
• Serial:
  • TUNNEL MANAGEMENT INTERNATIONAL
  • Volume: 2
  • Issue Number: 3
  • Publisher: ITC LTD
  • ISSN: 1463-242X

Subject/Index Terms

• TRT Terms: Calculation; Continuous structures; Crashes; Data collection; Highways; Incident detection; Methodology; Queuing; Speed; Statistics; Surveillance; Traffic; Traffic control; Tunnels; Vehicles; Ventilation systems
• ITRD Terms: 1643: Accident; 6464: Calculation; 9006: Continuous; 8623: Data acquisition; 2755: Highway; 1632: Incident detection; 9102: Method; 6594: Queue; 5408: Speed; 6555: Statistics; 9101: Surveillance; 755: Traffic; 654: Traffic control; 3374: Tunnel; 1255: Vehicle; 3392: Ventilation
• Subject Areas: Bridges and other structures; Data and Information Technology; Highways; Operations and Traffic Management; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00782930
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Feb 7 2000 12:00AM