The Hydroplaning (Tires)
The hydroplaning or aquaplaning by a road vehicle occurs when a water layer structure between the vehicle rubber tire and road surface, leading to loss of traction and thus preventing the vehicle respond to control inputs such as management, slow down or accelerate. It becomes, in effect, an unpowered and unsteered the sled.
Each function of the vehicle changes direction or speed, turning, acceleration, braking, puts an increasing burden on the tires. Control of this load relies on the friction between the contact points of the tire and road surface. More friction makes for greater strength to slip, if the water comes between the tires and the road, the friction can be reduced to the point where the driver can lose control.
Tread or grooves, sometimes referred to sipes, a rubber tire are designed to remove water from beneath the tire, providing high friction road surface even in wet conditions. The hydroplaning occurs when a tire is more water than it can dissipate. Water pressure in front of the wheel forces a wedge of water under the leading edge of the tire, making up the road. The tire then skates on a sheet of water with little, if any, direct contact of the road, resulting in loss of control.
If multiple hydroplaning tires, the vehicle may lose directional control and slide until it hits an obstacle, or slows enough that one or more tires in contact with the road again and friction is regained