Is it lawful to drive a vehicle at a speed that does not allow for a stop within the assured clear distance ahead?

Driving a vehicle at a speed that does not allow for a stop within the assured clear distance ahead is against the law. The principle of assured clear distance ahead is a fundamental traffic safety rule that requires drivers to operate their vehicle at a speed where they can stop safely if necessary. This rule is designed to ensure that drivers maintain an appropriate distance from potential hazards and can react in time to avoid collisions.

If a driver exceeds a speed that does not allow for this safe stopping distance, they are essentially risking not just their own safety but also the safety of other road users. This can lead to accidents, which is why it is considered unlawful. The law mandates that all drivers must be able to stop within the distance they can see to be clear ahead, promoting responsible and safe driving practices on the roadway.