INFLUENCE OF ROADWAY DISTURBANCES ON VEHICLE HANDLING. VOLUME II. TECHNICAL REPORT

The report presents the technical details involved in selecting significant roadway disturbances, determining worst conditions using the APL/JHU hybrid simulation and full scale pilot tests, developing open loop test procedures, and evaluating closed loop test results for meaningful, i.e., safety-related, performance measures. These combined results represent a first step in specifying passenger vehicle stability against, and/or recovery from, roadway disturbance inputs. From a total of 13 candidates representing 4 different classes of roadway disturbances, 3 primary disturbance related maneuvers emerged; these were recovery from a shoulder edge dropoff, turning on high-frequency bumps, and turning on a low-frequency hump. Full scale tests with 4 vehicles and a total of 22 subjects were run on these disturbances to develop test procedures and measures that are sensitive to changes in vehicle characteristics, pertinent to transient and steady state maneuvering, and practical to implement. Tentative disturbance amplitudes are suggested.

• Supplemental Notes:
  • See also Volume 1, PB-265 190. Also available in set of 3 reports PC E08, PB-265 189-SET.
• Corporate Authors:

  Systems Technology, Incorporated

  13766 South Hawthorne Boulevard
  Hawthorne, CA  United States  90250

  National Highway Traffic Safety Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Klein, R H
  • JOHNSON, W A
  • Szostak, H T
• Publication Date: 1977-2

Media Info

• Pagination: 179 p.

Subject/Index Terms

• TRT Terms: Data collection; Field tests; Maneuverability; Mechanical stability; Motor vehicles; Pavement surface course; Prevention; Road shoulders; Roads; Safety; Simulation; Suspension systems; Texture; Traffic crashes; Traffic safety; Vehicle characteristics
• Uncontrolled Terms: Bumps; Hybrids
• Old TRIS Terms: Disturbances
• Subject Areas: Highways; Safety and Human Factors; Security and Emergencies; Vehicles and Equipment;

Filing Info

• Accession Number: 00154035
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt., HS-802 211
• Contract Numbers: DOT-HS-5-01223
• Files: HSL, NTIS, TRIS, USDOT
• Created Date: Jun 17 1977 12:00AM