What should a driver do when facing adverse conditions on the highway?

When a driver encounters adverse conditions on the highway, such as rain, fog, snow, or ice, it is crucial to adapt driving behaviors to ensure safety. Slowing down is the most important step, as it allows for more reaction time to potential hazards and reduces the likelihood of losing control of the vehicle. Adverse conditions can affect visibility and traction, making it necessary to drive at a speed that is safe for the conditions rather than adhering to the posted speed limit.

Changing routes can also be wise in certain situations. For instance, if a particular road is known to be hazardous in adverse weather, opting for an alternative route that may be better maintained or more easily navigable can significantly enhance safety.

Maintaining speed, frequently changing lanes, or driving with high beams on do not address the inherent dangers of poor conditions. These actions can increase the risk of accidents, as they do not take into account the reduced visibility and traction that come with adverse weather. Thus, slowing down and potentially changing routes is the most sensible approach when facing adverse highway conditions.