What do service signs indicate?

Service signs are designed to provide information about services that are available to drivers, particularly in terms of facilities that can assist them during their travels. These include gas stations, rest areas, hotels, and restaurants. The primary purpose of service signs is to guide motorists to essential services, ensuring they can easily find what they need while on the road.

The other options pertain to different types of road signage. Upcoming traffic lights are indicated by traffic signal signs, which inform drivers about approaching signals. Speed limits on highways are displayed by regulatory signs that specifically indicate the legal speed a driver must maintain. Road work areas are typically marked by construction zone signs, which alert drivers to potential hazards or changes in road conditions due to construction. Each of these other sign types serves a distinct purpose that is separate from the information provided by service signs, which focus solely on directing motorists to nearby facilities that enhance their travel experience.