The first operational high-occupancy vehicle project in Dallas is described. The Texas Transportation Institute, the Texas Department of Transportation and the Dallas Area Rapid Transit cooperated in the development of this unique and successful system which uses movable concrete barriers to form the HOV lane and separate it from opposing mixed traffic. An operating manual was developed for the project that provides information about the set-up of the movable barrier, the equipment used, the people and time necessary to implement the project, enforcement of the HOV lane and breakdown and emergency guidelines. During peak traffic hours, the barrieris moved from the median of the off-peak direction of travel into position by a barrier transfer vehicle. The movable barrier system consists of one meter-long concrete barrier sections linked together by metal pins to form a continuous barrier. Accurate positioning is aided by a guide wire embedded in the pavement.

Media Info

  • Pagination: p. 12
  • Serial:
    • AASHTO Quarterly Magazine
    • Volume: 71
    • Issue Number: 2
    • Publisher: American Association of State Highway and Transportation Officials (AASHTO)
    • ISSN: 0147-4820

Subject/Index Terms

Filing Info

  • Accession Number: 00623033
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Jul 31 1992 12:00AM