EFFECTS OF RESTRICTED PREVIEW ON DRIVER STEERING CONTROL AND PERFORMANCE

DRIVER STEERING CONTROL AND PERFORMANCE WERE STUDIED FOR STRAIGHTLANE DRIVING UNDER CODITIONS OF RESTRICTED FAR-SIGHT DISTANCE. THE FAR-SIGHT DISTANCE NECESSARY FOR THE DRIVER TO ADEQUATELY ALIGN THE CAR WAS FOUND TO BE 70 FT. AND WAS INDEPENDENT OF VEHICLE SPEEDS OF 20 AND 30 M.P.H. WITH FAR-SIGHT DISTANCES BEYOND 70 FT., THERE WAS NO IMPROVEMENT IN DRIVER STEERING PERFORMANCE. SPECTRAL ANALYSIS OF STEERING WHEEL ANGLE SHOWED PEAKS IN THE FREQUENCY RANGE 0.1 TO 0.3 HZ. THE VALUE OF THE PEAK FREQUENCY WAS AFFECTED BY ALLOWED PREVIEW TIME, WHERE PREVIEW TIME WAS FAR-SIGHT DISTANCE DIVIDED BY VEHICLE SPEED. CROSS-CORRELATION ANALYSIS SUGGESTED THAT THE PEAKS WERE ASSOCIATED WITH THE DRIVER'S CONTROL OF VEHICLE HEADING ANGLE. HIGHER FREQUENCY PEAKS WERE OBSERVED IN THE RANGE 0.35 TO 0.6 HZ. THESE PEAKS WERE MORE LIKELY TO OCCUR UNDER CONDITIONS OF SEVERELY REDUCED PREVIEW. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1329271
• Corporate Authors:

  Human Factors Society

  Johns Hopkins University Press
  Baltimore, MD  United States  21218
• Authors:
  • McLean, J R
  • Hoffmann, E R
• Publication Date: 1973-8

Media Info

• Pagination: p. 421-30
• Serial:
  • Human Factors
  • Volume: 15
  • Issue Number: 4
  • Publisher: Sage Publications, Incorporated
  • ISSN: 0018-7208
  • EISSN: 1547-8181
  • Serial URL: http://hfs.sagepub.com/

Subject/Index Terms

• TRT Terms: Analysis; Driver performance; Drivers; Passing sight distance; Personnel performance; Steering; Visibility
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00222336
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 27 1974 12:00AM