San Antonio's smart highway system, TransGuide, is the most advanced freeway communication system in the nation. TransGuide's communications network consists of six parts: traffic loop detectors, fiber-optic cables, high-speed computers, high-resolution video cameras, changeable message signs, and software programs. The TransGuide Control Center, modeled after the NASA Space Center, is the heart of the system, with all road information coming into and leaving this central location. This article explains the impetus for developing TransGuide, describes the components that comprise the system, and provides information on the backup systems that guarantee TransGuide's reliability. A sidebar highlights other smart highways across Texas.


  • English

Media Info

  • Features: Photos;
  • Pagination: p. 12-14
  • Serial:
    • AASHTO Quarterly Magazine
    • Volume: 74
    • Issue Number: 2
    • Publisher: American Association of State Highway and Transportation Officials (AASHTO)
    • ISSN: 0147-4820

Subject/Index Terms

Filing Info

  • Accession Number: 00716438
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 7 1996 12:00AM