HUMAN FACTORS REQUIREMENTS FOR REAL-TIME MOTORIST INFORMATION DISPLAYS. VOLUME 13. HUMAN FACTORS EVALUATION OF AUDIO AND MIXED MODAL VARIABLES

The document summarizes fifteen research studies dealing with techniques for improving low-powered radio communications and the interface between radio and visual signing modes of communication. Studies were conducted both in laboratory and in-situ research vehicles. Topics investigated were language style of radio messages; the effects of order of message elements and message load on recall of specific elements; the types of route-following errors committed with internally and successively redundant audio messages; the effects of the complexity of a diversion route on success in route following from radio instructions; a comparison of success in route following with visually-coded trail blazers and with radio route guidance; the message design of an advance road sign to direct drivers to tune their radios for traffic information; and a survey of descriptors employed by local residents in describing to visitors a diversion route around an incident.

  • Supplemental Notes:
    • See also Volume 14, PB81-173734.
  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  United States  76011

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Huchingson, R D
    • Koppa, R J
    • Dudek, C L
  • Publication Date: 1978-8

Media Info

  • Pagination: 325 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00328988
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-RD-78- 17 Final Rpt.
  • Contract Numbers: DOT-FH-11-8505
  • Files: NTIS, TRIS, USDOT
  • Created Date: May 21 1981 12:00AM