New devices to alert motorists to hazardous conditions are discussed. The devices used on Interstate 90 in Wyoming, are: weather wire; wind velocity instruments; pavement ice detectors; visual range monitors; "micro" or spot weather forecasts; variable message signs; and lower power AM radio. The weather wire transmits forecasts as well as existing conditions. Wind speed measurements are being correlated with accident data. Pavement ice detectors are placed in locations such as tunnels and bridges. The sensors transmit information to the control box, which then activates a warning sign. Visual range monitors use probes, computers and anemometers to determine sight distance in bad weather. Use of spot (Micro) weather forecasts has been valuable in scheduling manpower and in anticipating storms. Variable message signs allow display of several hazardous conditions by remote control. Low power AM radio, still in the planning stages, consists of continuous broadcasts of road and travel information. Signs inform motorists as to the frequency to which they should tune their car radios.

  • Availability:
  • Corporate Authors:

    Public Works Journal Corporation

    P.O. Box 688
    Ridgewood, NJ  United States  07451
  • Authors:
    • Bell, G H
  • Publication Date: 1975-8

Media Info

  • Features: Photos;
  • Pagination: p. 58-60
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00127285
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 14 1976 12:00AM