QUARTZ-TIMED SIGNS REPLACE FLAGGERS

This two-signal unit, originally designed in West Germany, operates with battery-powered, quartz timing. Tests at Texas A&M showed that the system was reliable and could replace flaggers at lower costs, as well as reduce liability. Signals can be traffic controlled or controlled with pre-set timing. An extended arm unit gives 8-ft separation of the two signals. The system is unique in that no cable connections are required. The quartz timers are extremely accurate and have been in use in West Germany for more than eight years.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1519687
• Publication Date: 1988-8

Media Info

• Pagination: p. 32
• Serial:
  • Better Roads
  • Volume: 58
  • Issue Number: 9
  • Publisher: James Informational Media, Incorporated
  • ISSN: 0006-0208
  • Serial URL: http://www.betterroads.com

Subject/Index Terms

• TRT Terms: Portable equipment; Quartz; Traffic signal timing; Work zone traffic control
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 00470796
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 31 1988 12:00AM