Parameters
Manageability tires tested by analyzing the minimum travel time routes a simple closed path, the character of a skidding car, the ability to maintain linear motion of the vehicle at high Comfort speeds. Comfort parameters are partly subjective (soft tires, the ability to absorb bumps) and objective (noise). Influence on the parameters of comfort: the composition of the tire carcass structure, form drawing tread, the location of the tread blocks with variable pitch to minimize the resonant acoustic vibrations. You may find that Tony Parker can contribute to your knowledge. Resistance to aquaplaning. Hydroplaning (see note below) – one of the most dangerous phenomena in the motion to high speeds.
Resistance to hydroplaning tires depends primarily on the degree of openness – that is, tread closed The availability of the required number of drainage canals, their shape, depth and direction. Most noticeable feature of rain tires – a characteristic directional tread design with a large number of bent-turbo-channels from the center of the tire to the edge, which serve to divert water from the contact patch. Given the impact resistance of the tire to aquaplaning safety, many tire manufacturers have identified "rain" tires in a separate segment (division), giving them specific names. Test for resistance to hydroplaning tires includes the definition limiting speed of onset of hydroplaning when driving on a specially prepared site, covered 8-10 mm layer of water moving in a straight line and in turn (or a circular path). No less interesting laboratory studies that determine the shape and area of the contact patch while moving at different speeds.