This report presents a comprehensive, objective evaluation of the current state of the art in motorist aid systems. It is intended as a central reference source for practicing engineers and other public officials seeking to determine the best course of action in providing assistance to disabled motorists. The alternative forms of motorist aid system concepts are defined in terms of functional elements and operating characteristics. System descriptions and operational histories of a representative cross-section of projects utilizing the various concepts are documented. Emphasis is then placed on federally-funded roadside callbox systems, their strengths and weaknesses, critical issues which have emerged as specific performance data became available are evaluated to provide a framework to assist traffic and highway engineers plan, design, install, operate, and evaluate future callbox systems. Major suppliers of MAS equipment are identified together with the key features of their relevant product line.

  • Supplemental Notes:
    • See also PB-264 775.
  • Corporate Authors:

    Central Road Research Institute

    Delhi-Mathura Road
    New Delhi,   India  110020

    Federal Highway Administration

    Office of Implementation, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Fullerton, I J
    • Kell, J H
    • Aiona, E J
  • Publication Date: 1976-8

Media Info

  • Pagination: 303 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00153970
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA/RD/IP-76-11 Final Rpt.
  • Contract Numbers: DOT-FH-11-8745
  • Files: NTIS, TRIS, USDOT
  • Created Date: Jun 17 1977 12:00AM