Production method of the safe tire and the improvement method of the traffic safety due to its use

摘要

When the tire loses adhesion friction significantly in rainy weather or snowfall condition, in order to improve traffic safety by being useful to specifying, the tire which is designed. Furthermore in detail, being the tire which decides the adhesion frictional ability at many levels of tread wear, as for the said tire, it possesses one which is categorized to the tread depth which corresponds to the specified loss of adhesion frictional ability visual warning indicator at least, the tire. Furthermore, adjusting to the fact that the consumer is educated in regard to the use whose method, and the said tire which draw up the said tire are correct, the method of improving traffic safety through the use of that kind of tire.