Abstract
THIS ARTICLE GIVES A BRIEF HISTORICAL PERSPECTIVE OF TYRE DEVELOPMENT AND DESCRIBES SOME OF THE CHALLENGES FACING A TYRE DESIGNER, FROM THE RESULTS OF MICRO-MEASUREMENTS OF THE TRI-AXIAL PIN TO THE MACRO-MEASUREMENTS OF WET AND DRY TRACTION, HYDROPLANING AND SNOW TESTING, AND METHODS OF ANALYSIS. (A) FOR THE COVERING ABSTRACT OF SECTION 5 SEE IRRD 266063. FOR THE COVERING ABSTRACT OF THE CONFERENCE SEE IRRD 266046.