THE MORNING AFTER

In the event of an electrical storm, no single device can provide 100% protection for traffic signal controllers. The survival of traffic control equipment and its chances of continuing operation, without interruption or error, depends upon a series of protective measures. These include grounded 'static' wires run above the phase conductors and 'earthed' via wires on the poles connected to ground rods at the base, a very high quality multi-stage bidirectional filter network (series electronic filter), and a single point grounding system (zero reference point) for all of the interactive traffic control equipment's chassis grounds established in the cabinet.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/7529443
• Corporate Authors:

  International Municipal Signal Association

  PO Box 539, 1115 North Main Street
  Newark, NY  United States  14513
• Authors:
  • Casey, T R
• Publication Date: 1988-10

Media Info

• Pagination: p. 12-13
• Serial:
  • IMSA Journal
  • Volume: 25
  • Issue Number: 5
  • Publisher: International Municipal Signal Association
  • ISSN: 10642560
  • Serial URL: http://www.imsasafety.org

Subject/Index Terms

• TRT Terms: Lightning; Protection; Traffic signal controllers
• Subject Areas: Highways; Maintenance and Preservation; Operations and Traffic Management; Security and Emergencies; I73: Traffic Control;

Filing Info

• Accession Number: 00477108
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 30 1988 12:00AM