TESTS SHOW 80 TO 100 STUDS ADEQUATE

RECENT STUDIES BY A LEADING MANUFACTURER OF TIRE STUDS SHOW THAT TRACTION ON ICE DOES NOT INCREASE PROPORTIONATELY WITH THE NUMBER OF STUDS. INCREASING THE NUMBER OF STUDS PER TIRE MUCH BEYOND 100 DECREASES TRACTION ON DRY ROADS. TRACTION DEPENDS ON STUD DISTRIBUTION AND PROTRUSION. AT TEST SPEEDS UP TO 80 MILES PER HOUR, STUDS STAY IN PLACE. ROAD TESTS INDICATE THAT TIRE STUDS IMPROVE TRACTION ON ROADS MADE SLIPPERY BY OIL FILMS, WET LEAVES, AND OTHER CAUSES. WITH CAREFUL DRIVING, WEAR OF BOTH TIRE AND STUD ARE SMALL. AT HIGH SPEEDS WHEN THE STUDS ARE SUBJECTED TO LARGER FORCES, THEY WILL WEAR FASTER THAN THE RUBBER, REDUCE PROTRUSION AND THUS WITHSTAND THE INCREASED FORCES. BEST BRAKING AND LEAST SKIDDING OCCUR WHEN ALL FOUR TIRES ARE STUDDED.

• Supplemental Notes:
  • pp 19-20, 4 FIG, 1 PHO
• Publication Date: 1966-2

Media Info

• Serial:
  • TRAFFIC DIGEST AND REVIEW
  • Publisher: Northwestern University, Evanston

Subject/Index Terms

• TRT Terms: Durability tests; Numbers; Performance; Physical distribution; Road tests; Speed; Studded tires; Studs; Tires; Traction; Wear
• Uncontrolled Terms: Protrusion
• Subject Areas: Freight Transportation; Highways; Maintenance and Preservation; Vehicles and Equipment;

Filing Info

• Accession Number: 00218190
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 9 1994 12:00AM