00163919

Component

http://onlinepubs.trb.org...s/trr/1976/621/621-015.pdf

http://scholar.google.com...acia&publication_year=1977

This paper presents the results of a test program on the skid performance of tires. The program was conducted under Contract DOT-HS-205-2-238 from the Department of Transportation, National Highway Traffic Safety Administration. Effects of the following variables were evaluated: tire load; tire inflation pressure, road speed and surface water depth. An ASTM type control tire and a production bias belted tire were used in the tests. Both peak and locked wheel coefficients of friction were measured using two skid trailers. All tests were run on a wet surface with either the skid trailer's onboard watering system spreading 0.51 mm (0.02 in.) of water on the test track or sprinklers flooding the track surface to a depth of 3.05 mm (0.12 in). Load, speed, and inflation were varied over a range of three values. Two surfaces were used, SN 35 plus or minus 5 concrete and SN 60 plus or Minus 5 asphalt. Of the variables tested, load and inflation had the least effect on traction over the range which they were varied. Speed and water depth interacted, causing a significant decrease in skid coefficients with an increase in both parameters. /Author/

This article appeared in Transportation Research Record No. 621, Skidding Accidents: Tires, Vehicles, and Vehicle Components--which contains the proceedings of a conference conducted by the Transportation Research Board, May 2-6, 1977.

01411470

Proceeding
HS-021 374
HS-020 126

pp 126-135

1977

Transportation Research Record

Second International Skid Prevention Conference

0309025745

Digital/other

Figures (13) ; References (9) ; Tables (7)

Alternating current peak value; Asphalt pavements; Bias (Statistics); Coefficient of friction; Computer programs; Concrete pavements; Inflation; Loads; Operations; Pavements; Pressure; Skid resistance; Skid trailers; Speed; Tires; Traction; Wet weather

Wet pavements

Administration and Management; Geotechnology; Highways; Materials; Pavements; Vehicles and Equipment

TRIS, TRB

Oct 13 1977 12:00AM

• A CONSIDERATION OF TIRE-ROAD TRACTION MEASURING METHOD IN JAPAN
• AN OVERVIEW OF EUROPEAN MEASURING METHODS AND TECHNIQUES
• ASTM SKID TRAILERS INSTRUMENTATION SYSTEMS THRU COMPUTERIZATION
• BRAKE MODELING ANTI-LOCK SIMULATION
• DESIGN OF SUSPENSION TO PREVENT PULLING TO ONE SIDE AND SKIDDING DURING BRAKING-PARTICULARLY ON A SURFACE WITH DIFFERING COEFFICIENT OF FRICTION
• EFFECT OF TIRE CONSTRUCTION VARIABLES ON PASSENGER TIRE WET TRACTION
• EFFECTS OF TREAD COMPOSITION ON WET SKID RESISTANCE OF PASSENGER TIRES
• INFLUENCE OF TREAD DEPTH ON WET SKID RESISTANCE OF TIRES
• MEASUREMENT OF SHEAR FORCES DEVELOPED BETWEEN TIRE AND PAVEMENT
• MEASURING SKID RESISTANCE OF PASSENGER CAR TIRES ON AN INDOOR FACILITY
• SKID RESISTANCE PROPERTIES OF TIRES AND THEIR INFLUENCE ON VEHICLE CONTROL
• THE WET ROADHOLD OF TYRES--A EUROPEAN VIEWPOINT
• TIRE WET TRACTION PERFORMANCE: THE INFLUENCE OF TREAD PATTERN
• TIRE-VEHICLE SYSTEM ELEMENTS BEARING ON THE PROBABILITIES OF LOSS OF CONTROL
• VEHICLE DESIGN AND SKID RESISTANCE
• WHEEL LOCK CONTROL: STATE-OF-THE-ART