What is the main function of the grooves and channels in the tire tread pattern?

Question

DentroTest · Accepted Answer

The tread pattern of a tire, made up of furrows, channels and grooves, has as its essential function to drain and clear the water accumulated on the roadway when it rains. By draining the water, it ensures that the rubber stays in direct contact with the road surface, avoiding the dangerous phenomenon of aquaplaning. On completely dry surfaces, a tire with no tread (smooth or slick-type) would even have more contact surface and grip, so the grooves are not designed to improve grip in the dry or to increase traction in general, but specifically for wet ground conditions.

What is the main function of the grooves and channels in the tire tread pattern?

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