What does adhesion refer to in driving?

In the context of driving, adhesion specifically refers to the grip or traction between the vehicle's tires and the road surface. This grip is essential for safe driving as it affects the vehicle's ability to move, stop, or turn effectively. When tires have good adhesion, they can transfer forces from the vehicle to the road, allowing for responsive steering and braking.

Although a driver's ability to maneuver and the performance of the braking system are important factors in overall vehicle control, they do not directly define adhesion. Similarly, while a vehicle's ability to move, stop, or turn encompasses various elements, the term "adhesion" is more precisely focused on the relationship between the tires and the road surface. Therefore, the concept of adhesion is critical for understanding how vehicles maintain control and stability while driving, especially in varying conditions.