THE 170

The states of California and New York, in cooperation with FHWA, have jointly designed the user oriented (and defined) type 170 Traffic Signal Controller. The system's primary objectives were to allow multiple applications, reduce liability and reduce acceptance testing and maintenance costs by improving the test ability and thus the reliability of the system. The specifications (e.g. the microprocessor chip and the cabinent configuration) allow interchangeability of software and hardware with any 170 system, thus making it inexpensive to update. The interchangeability of software also allows multiple functions. For example with current software, a 170 can be converted to a traffic actuated controller, a ramp meter, a pretimed controller, a coordinator, a water sprinkler control, a matrix system control, a traffic counter, or a U.T.C.S. system control.

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

  International Municipal Signal Association

  P.O. Box 8249
  Fort Worth, TX  United States  76112
• Authors:
  • Russo, R A
• Publication Date: 1983-12

Media Info

• Features: Photos;
• Pagination: p. 6-7
• Serial:
  • IMSA Journal
  • Volume: 20
  • Issue Number: 5
  • Publisher: International Municipal Signal Association
  • ISSN: 10642560
  • Serial URL: http://www.imsasafety.org

Subject/Index Terms

• TRT Terms: Actuated traffic signal controllers; Interoperability; Microcomputers; Ramp metering; Software; Specifications; Traffic actuated controllers; Traffic counts; Traffic signal controllers
• Uncontrolled Terms: Hardware
• Old TRIS Terms: Interchangeability
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00381237
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 30 1984 12:00AM