What should a driver do when encountering loose gravel on the road?

When a driver encounters loose gravel on the road, it is essential to slow down and drive cautiously. Loose gravel can significantly reduce traction, making it more challenging to control the vehicle. By reducing speed, a driver can better handle any unexpected slips or slides that may occur on this unstable surface. Cautious driving also allows for more time to react to any potential hazards that may arise, such as other vehicles or changes in road conditions.

Driving faster, as suggested in one of the options, might help to maintain control on a stable surface, but on loose gravel, it increases the risk of losing control and could lead to accidents. Changing lanes immediately might not be safe, especially if the gravel is present in multiple lanes or if there are other vehicles nearby. Ignoring the sign that warns about loose gravel could lead to dangerous situations, as signs are there to inform drivers of changing road conditions. Therefore, the most prudent action in this scenario is to slow down and proceed with caution.