What factors increase stopping distance for a commercial vehicle?

Stopping distance for a commercial vehicle is significantly influenced by multiple factors, all of which are critical to understand for safe driving. Speed is a primary factor; as the vehicle travels faster, it requires a longer distance to stop due to the increased momentum. Weight plays a crucial role as well; heavier vehicles have greater inertia, making them harder to stop quickly. Therefore, as the weight increases, so does the stopping distance.

Road conditions are also vital. Wet, icy, or uneven surfaces can reduce traction, leading to longer stopping distances. The condition of the brakes can't be overlooked; well-maintained brakes respond more effectively, whereas worn or damaged brakes can dramatically increase stopping distances.

Other choices focus on singular factors like vehicle size, specific weather conditions, or driver experience, which, while they may influence stopping distance, do not encompass the totality of elements affecting stopping distance as comprehensively as speed, weight, road conditions, and brake condition do. Understanding the interaction of these factors is essential for safe commercial vehicle operation.