REGARDING SIGNS AND MARKINGS: WIRELESS PORTABLE CHANGEABLE MESSAGE SIGN CONTROL

This article discusses new technologies in the field of message display for traffic safety and management to motorists. Of these newer technologies, the Light Emitting Diode (LED) technology and wireless communication are becoming the front runners due to maintenance advantages, low power consumption, and lower costs. Portable changeable message signs (PCMS) have been deployed for many years, using energy provided by battery/solar panel power packs and LED technology to generate traffic safety and management messages. The PCMS market has led the way in wireless communication as contractors and DOTs realized the advantages of being able to dial-up the portable sign, regardless of location, and place messages on the display. Fixed variable message signs have historically used less wireless communication due to lower costs and other considerations. Other advances and applications in wireless communication for traffic safety and management are also described.

  • Availability:
  • Corporate Authors:

    International Municipal Signal Association

    165 East Union Street
    P.O. Box 539
    Newark, NY  United States  14513
  • Authors:
    • Mulligan, B
  • Publication Date: 2000-1

Language

  • English

Media Info

  • Features: Photos;
  • Pagination: p. 16-17
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00789443
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 8 2000 12:00AM