What does a blue traffic sign indicate?

A blue traffic sign primarily indicates information about services. These signs are designed to assist drivers by providing essential information regarding available services, such as gas stations, hospitals, hotels, and food, in the vicinity. This helps travelers to quickly identify where they can access necessary amenities as they travel, making their journey more convenient and safer.

The other types of signs play different roles in road safety and navigation. For example, warning signs typically alert drivers to potential hazards ahead. Regulatory signs convey important rules that must be followed, such as speed limits or no parking zones. Directional signs provide information about routes and distances to various destinations. Each sign color and shape serves a specific purpose, and understanding these helps drivers respond appropriately while on the road.