What does a blue sign typically indicate on the road?

A blue sign on the road serves as an indicator of services available to drivers and travelers. This includes information about amenities like gas stations, rest areas, restaurants, hospitals, and lodging. The purpose of using blue is to guide motorists toward essential services that enhance travel comfort and safety.

For instance, a blue sign with a fuel symbol signifies that fuel stations are located ahead, allowing drivers to plan their stops effectively. This functionality helps ensure that all necessary services are accessible, especially in areas where availability might be limited.

In contrast, other color codes indicate different types of information. For example, yellow or orange signs typically warn of hazards or changing road conditions, while construction zones are often marked with orange signs. No parking zones are usually represented by a red sign, aiming to inform drivers where parking restrictions apply. Understanding these color codes is vital for safe and efficient driving.