Various methods for evaluating ride quality in automobiles are investigated by means of a field study involving two different automobiles, seventy eight different passengers, and eighteen different roadway sections. Passenger rating panels were used to obtain subjective evaluation of the various rides, and measured vibration spectra were compared on the basis of various evaluation techniques to determine their ability to predict the subjective ratings. Included in the evaluation criteria considered are the ISO (International Standards Organization) Standard, the UTACV (Urban Tracked Air Cushion Vehicle) Specification, and the Absorbed Power method of Lee and Pradko. Excellent correlation was found to exist between the subjective ride ratings and simple root mean square acceleration measurements at either the vehicle floorboard or passenger/seat interface. Equations were developed to predict the subjective ride rating from measured vibration spectra.

  • Corporate Authors:

    University of Texas, Austin

    Council for Advanced Transportation Studies
    Austin, TX  United States  78712

    Department of Transportation

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • SMITH, C C
    • McGehee, D Y
    • Healey, A J
  • Publication Date: 1976-3

Media Info

  • Pagination: 119 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00186208
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DOT-TST-76-109 Res. Rpt., CATS-RR-16
  • Contract Numbers: DOT-OS-30093
  • Files: TRIS, ATRI, USDOT
  • Created Date: Feb 3 1979 12:00AM