What does a caution sign typically indicate?

A caution sign is specifically designed to alert drivers to changes in road conditions that may require increased attention or a modification in driving behavior. This can refer to various situations such as sharp turns, pedestrian crossings, or merging lanes. The use of caution signs aims to enhance safety by preparing drivers for potential hazards that lie ahead, making it essential for them to adjust their speed or be more vigilant.

The other options represent specific scenarios that do not encompass the general purpose of a caution sign. For instance, road construction signs serve a different function by indicating active construction areas, while speed traps and rest areas have distinct signage and are not represented by caution signs. Thus, the correct interpretation of a caution sign relates to broader alterations in road conditions that drivers must be aware of while navigating the roadway.