1. Home
  2. TRID
  3. View Record
https://trb-annual-meeting.nationalacademies.org/registration

EFFECT OF STUDDED TIRES ON AGGREGATE WEAR RATES AND RELATED EFFECTS ON SKID RESISTANCE

A BRIEF HISTORY IS PRESENTED OF THE USE OF STUDDED TIRES IN MINNESOTA. STUDS FIRST BEGAN TO APPEAR IN 1964, AND WERE RULED ILLEGAL UNDER THE THEN-EXISTING LAW. SOME LIMITED DRIVING TESTS WERE MADE WITH STUDS WHICH CONTINUED DURING WINTER INTERVALS INTO JANUARY 1967. THE 1965 LEGISLATURE AUTHORIZED A TWO-YEAR TRIAL PERIOD, AFTER WHICH THE 1967 AND THE 1969 LEGISLATURES AGAIN AUTHORIZED ADDITIONAL TWO-SEASON EXTENSIONS. THE AMOUNT OF PAVEMENT WEAR THAT DEVELOPED IN THE FIRST TWO WINTERS WAS RELATIVELY MINOR, APPARENTLY BECAUSE OF THE SMALL NUMBER OF CARS EQUIPPED WITH STUDS. AS THE PROPORTION OF USERS INCREASED RAPIDLY IN THE THIRD WINTER, THE WEAR BECAME PRONOUNCED. BY THE END OF THE FOURTH WINTER, THE WEAR HAD BECOME SEVERE ON SOME ROADS, REACHING A DEPTH AS MUCH AS 1/4 INCH IN THE WHEEL TRACKS, ON BOTH BITUMINOUS AND PORTLAND CEMENT CONCRETE. WHILE AUTHORIZING THE LATEST TIME EXTENSION FOR STUDS, THE LEGISLATURE ALSO AUTHORIZED THE COMMISSIONER OF HIGHWAYS TO MAKE AN IN-DEPTH STUDY OF THE STUDDED TIRE PROBLEM. THE MOST SEVERE WEAR HAS DEVELOPED ON HIGH-SPEED, HIGH TRAFFIC VOLUME ROADS, SUCH AS THE INTERSTATE AND OTHER FREEWAYS AND EXPRESSWAYS WITHIN AND AROUND THE METROPOLITAN AREA. THE RATE OF PAVEMENT WEAR APPEARS TO BE DEFINITELY RELATED TO BOTH SPEED AND NUMBER OF STUD APPLICATIONS. THE MANNER IN WHICH THE ABRASIVE WEAR AFFECTS PAVEMENT SURFACES APPEARS TO BE SUBSTANTIALLY THE SAME FOR BOTH BITUMINOUS AND PORTLAND CEMENT CONCRETE PAVEMENTS. AS THE SURFACE FILM OR COATING OF EITHER ASPHALT OR CEMENT MORTAR WEARS AWAY, THE COARSE AGGREGATE PARTICLES ARE GRADUALLY EXPOSED TO VIEW, SO THAT THE FIRST CLEARLY VISIBLE EVIDENCE OF SIGNIFICANT WEAR IS THE MOSAIC-LIKE APPEARANCE OF THE SURFACE. AS THE WEAR PROGRESSES, THE MATRIX IS ERODED FROM BETWEEN THE HARDER CORE AGGREGATE PARTICLES. THE AREA EFFECTED IN THE WHEEL TRACKS IS GENERALLY APPROXIMATELY 2 1/2 FEET WIDE FOR EACH WHEEL PATH. THE DEVELOPMENT OF WHEEL TRACK WEAR PRODUCES, IN EFFECT, SHALLOW SURFACE RUTS THAT MAY POSSIBLY HAVE SOME EFFECT UPON THE SKID CHARACTERISTICS OF THE PAVEMENT. IF IT IS PROVED THAT STUDDED TIRES ARE EFFECTIVE AS A SAFETY MEASURE, IT MUST BE RECOGNIZED THAT PAVEMENT WEAR, WHETHER CAUSED EXCLUSIVELY BY TIRE STUDS OR BY A COMBINATION OF STUDS, SALT, AND SAND, WILL PLACE NEW DEMANDS ON MAINTENANCE AND CONSTRUCTION EFFORTS.

  • Corporate Authors:

    Minnesota Department of Highways

    ,    
  • Authors:
    • Preus, C K
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00218580
  • Record Type: Publication
  • Report/Paper Numbers: 7 pp
  • Files: TRIS, STATEDOT
  • Created Date: Apr 16 1970 12:00AM