What is a characteristic of dynamic hydroplaning?

Dynamic hydroplaning is characterized by the phenomenon where a wedge of water accumulates between the tires of a vehicle and the surface of the road, causing a complete loss of traction. This typically occurs when a vehicle travels at higher speeds over a wet surface, allowing the tires to lose contact with the road due to the pressure of the water.

The formation of a wedge under the tires is a critical aspect of dynamic hydroplaning, as it leads to the vehicle gliding on the water layer instead of maintaining effective contact with the road. This results in a significant decrease in the vehicle's ability to steer and brake, making it crucial for drivers to understand how this condition can affect their control.

In contrast, the other options do not accurately describe dynamic hydroplaning. For instance, it does not occur at very low speeds; it typically takes place at higher speeds. Additionally, while dynamic hydroplaning severely affects braking action, it can still happen without entirely preventing braking; the effectiveness might be greatly reduced but not completely lost. Lastly, dynamic hydroplaning is not rare; many drivers may encounter it under the right conditions, especially on wet roads at higher speeds.