COMPUTER SIMULATION OF THE EFFECT OF ROAD ROUGHNESS ON TIRE-PAVEMENT FORCES IN BRAKING AND CORNERING

The research examined through computer simulation, the effect of road roughness on tire-pavement forces in braking and cornering on a road of skid number 50. In addition to the force information, braking performance, measured by stopping distances, and cornering performance, measured by stability factor which indicates understeer, were investigated. Vehicle performance was accessed on five road surfaces: smooth, two actual recorded road profiles, and two periodic profiles. Two vehicles were simulated - (1) 1971 Dodge Coronet passenger car, and (2) 1974 White Road Boss single unit truck. The White truck was loaded to maximum gross weight. The simulation utilized was the Hybrid Computer Vehicle Handling Program (HVHP) which is a nonlinear representation of four wheeled vehicles.

• Corporate Authors:

  Johns Hopkins University, Laurel

  Applied Physics Laboratory, 11100 Johns Hopkins Road
  Laurel, MD  United States  20723-6099

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Bohn, P F
  • Dunkle, H D
• Publication Date: 1977-9

Media Info

• Pagination: 113 p.

Subject/Index Terms

• TRT Terms: Braking; Loads; Passenger vehicles; Pavements; Roads; Rolling contact; Roughness; Simulation; Skid resistance; Skidding; Stability (Mechanics); Steering; Texture; Tires; Traffic safety; Trucks; Vehicle performance
• Uncontrolled Terms: Road profile; Skid number
• Old TRIS Terms: Cornering (Vehicle)
• Subject Areas: Highways; Motor Carriers; Pavements; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00176040
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA-RD-77-124 Intrm Rpt., APL-BCE-T-0674, FCP 35D4-032
• Contract Numbers: P.O. No. 6-3-0068
• Files: NTIS, TRIS, USDOT
• Created Date: Jul 19 1978 12:00AM