The design and installation of safety equipment in the 17 km St Gotthard tunnel, aimed at reducing driver fatigue by automatic traffic regulation, is described. Access is controlled by signals at both ends of the tunnel, with traffic lights and speed limit signs every 250 M. Traffic is automatically regulated by computer and drivers are also able to receive radio communication in the event of an emergency. Ventilation consists of six installations with automatic control of extractor fans from measurements of air pollution concentration. Automatic fire detectors consist of heat sensors combining rate-of-rise and maximum temperature elements. Sensors control traffic lights, TV cameras, emergency lighting and ventilation. Access to an accident scene is gained by small vehicles using an emergency lane. (TRRL)

  • Availability:
  • Corporate Authors:

    Morgan-Grampian Limited

    30 Calderwood Street
    London SE18 6QH,   England 
  • Publication Date: 1981-1-2

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00335245
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Oct 28 1981 12:00AM