What does a blue traffic sign typically indicate?

A blue traffic sign typically indicates information about services and facilities. This color is used to convey messages related to assistance for drivers, such as directions to gas stations, rest areas, hospitals, and other essential services. The use of blue is intentional to create a clear distinction from warning signs and regulatory signs, which use different colors to communicate specific types of information on the road. This ensures that drivers can quickly identify the type of message being presented. In addition to services, blue signs may also appear in specific contexts, such as public information or traveler services, which further emphasizes their purpose in providing helpful guidance for road users.