aquaplaning

Aquaplaning, also known as hydroplaning, is a loss of vehicle traction caused by a thin layer of water between tires and the road surface. When water builds up in front of or beneath a moving tire, the tire can lose contact with the road and ride on the water, reducing friction and making steering, braking, and acceleration unreliable.

Causes and conditions: The effect occurs on wet roads with standing water. It is more likely with worn or underinflated tires, high speeds, and road surfaces that do not efficiently shed water. As the tire rotates, water is forced outward, creating a wedge that lifts the tire from the road. Tire tread depth, tire type, vehicle weight, and water depth influence the risk.

Signs and risk: Drivers may notice a sudden loss of steering control or a sense that the vehicle is “floating.” Aquaplaning can occur unexpectedly and is more common in heavy rain and deep puddles, affecting cars, motorcycles, and trucks. Stopping distance can increase and handling may become unpredictable.

Prevention and response: Maintain adequate tread depth and proper tire inflation, replace worn tires, and inspect for damage. Reduce speed in wet conditions, slow before entering water, and increase following distance. If aquaplaning occurs, ease off the accelerator, avoid abrupt braking or steering, and steer gently in the direction of travel until grip returns.