What should a driver always be able to do regarding their vehicle?

Being able to stop within clear sight distance is crucial for a driver to ensure safety on the road. This means that a driver should always have the ability to bring their vehicle to a halt in a distance that is visible ahead. This skill is particularly important because it allows the driver to react appropriately to sudden hazards, such as pedestrians crossing the road, vehicles stopping unexpectedly, or any obstructions that may appear in the path.

The principle behind this requirement is rooted in the understanding of stopping distance, which involves both perception time and braking distance. When a driver can stop within clear sight distance, they are better equipped to manage unforeseen situations and minimize the risk of accidents. It fosters a proactive driving behavior, ensuring that the driver constantly maintains awareness of their surroundings.

In contrast, while factors like the ability to increase speed quickly, drive without distractions, and change lanes rapidly may contribute to driving performance, they do not emphasize the fundamental responsibility of ensuring safety and control over the vehicle in all scenarios. The priority always lies in being able to safely halt the vehicle whenever necessary.