When driving on a highway, what is the recommended scanning distance?

The recommended scanning distance when driving on a highway is around 12 seconds ahead. This practice allows drivers to maintain a safe awareness of their environment and any potential hazards or changes in traffic conditions. By looking 12 seconds down the road, drivers can anticipate situations that may arise, such as vehicles merging, brake lights ahead, or changes in the speed of traffic.

This extended scanning distance provides enough time to react appropriately. It enables drivers to make better decisions, such as adjusting speed, changing lanes, or preparing to stop if necessary. In highway driving, where speeds are generally higher, having that critical extra time to assess the situation can be pivotal for maintaining safety. Scanning for just a few seconds ahead may not provide sufficient reaction time, especially in fast-moving scenarios typical of highway travel.