Final Answer:
A road surface with a higher coefficient of friction, such as asphalt, provides the best friction and requires less room to stop.
Step-by-step explanation:
The coefficient of friction is a measure of how much two surfaces resist sliding against each other. In the context of road surfaces, asphalt is known for its higher coefficient of friction compared to other materials like concrete. This higher coefficient of friction results in better traction between the tires of a vehicle and the road surface.
When a vehicle comes to a stop, the friction between the tires and the road plays a crucial role in deceleration. A higher coefficient of friction means that the tires can grip the road more effectively, allowing for quicker and more controlled stopping. This is particularly important for road safety, as a road surface with better friction requires less distance for a vehicle to come to a complete stop.
The choice of road surface materials is influenced by factors such as cost, durability, and climate resistance. Asphalt, with its optimal balance of these factors and a high coefficient of friction, is widely used in road construction. By providing a road surface with superior frictional characteristics, accidents related to skidding or sliding can be minimized, contributing to overall road safety and efficient traffic flow.