What is the primary purpose of mud flaps on trucks?

The primary purpose of mud flaps on trucks is to prevent debris from flying. Mud flaps serve as barriers that reduce the amount of mud, rocks, and other road materials that can be kicked up by the tires during operation. When vehicles travel, especially on unpaved or gravel roads, the tires can fling debris into the air, which may not only damage other vehicles but could also pose a risk to pedestrians or road users. By effectively minimizing this spray of debris, mud flaps help enhance overall safety on the road.

While improving aerodynamics, reducing water splashing, and enhancing tire traction are important aspects of vehicle design and performance, these factors are secondary to the primary function of mud flaps. The specific design and material of mud flaps are primarily focused on their role in debris containment, ensuring a safer environment for all road users.