Among the physical characteristics of road users, which is the most important for safe driving?

Vision is commonly regarded as the most critical physical characteristic for safe driving because it is the primary sense used to perceive the driving environment. Drivers rely on their vision to observe traffic signals, read road signs, monitor the speed of other vehicles, and detect pedestrians and other obstacles. Good vision helps drivers gauge distances, judge the speed of approaching vehicles, and make critical decisions based on what they see.

While hearing is certainly important for being aware of sirens or honking horns, it does not provide the same comprehensive information about the surroundings as vision does. Strength and coordination, while beneficial for vehicle control, are secondary to the need for accurate visual information in driving. Agility, while useful in certain contexts, does not have the same level of relevance in the context of constantly processing visual cues while driving. Overall, the reliance on vision as a dominant sense in driving tasks underscores its importance for maintaining safety on the road.