What does a blue traffic sign typically indicate?

A blue traffic sign typically indicates traveler services. These signs are designed to provide information to motorists about services that are available nearby, such as gas stations, rest areas, hospitals, and food services. Blue signs help drivers navigate and plan their stops more effectively, enhancing their travel experience by informing them of essential amenities along the roadway.

In contrast, warning and caution signs are usually yellow or orange, indicating potential hazards or changes in road conditions. Construction zones are marked with orange signs to alert drivers of ongoing construction work and possible detours. School zones are identifiable by their specific signs, often featuring the shape of a house with children, signaling reduced speed limits and caution in areas where children are present. Each color and shape of traffic sign is standardized to convey specific messages quickly and effectively to drivers.