For what purpose are splash guards required in larger vehicles?

Splash guards are required in larger vehicles primarily to prevent water splash. These guards, often referred to as mud flaps, are designed to minimize the amount of water, mud, and debris that can be thrown up by the tires while the vehicle is in motion. This is crucial because excessive splashing can lead to visibility issues for other drivers and can even contribute to road hazards. By keeping water and debris on the ground, splash guards help maintain safer driving conditions.

While enhancing appearance, protecting tires, and ensuring road safety might seem relevant, the core function of splash guards is specifically aimed at reducing the splash effect caused by tires, which directly relates to maintaining visibility and ensuring that debris does not negatively impact surrounding vehicles and pedestrians.