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

• TRT Terms: Communication; Communication systems; Design; Driver information systems; Drivers; Freeways; Guidelines; Human factors; Human factors engineering; Information display systems; Radio; Real time control; Real time data processing; Reviews; Route guidance; Traffic control; Traffic signals; Traffic signs; Vision
• Old TRIS Terms: Display devices; Displays; Traffic sign design; Visual communication
• Subject Areas: Design; Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control;

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