What do blue traffic signs indicate?

Blue traffic signs specifically indicate motorist services such as gas stations, food establishments, rest areas, and lodging options like hotels. This color coding is designed to help drivers easily identify essential services that can assist them on their journey, particularly in unfamiliar areas.

For instance, when a driver is in need of fuel or a place to eat, spotting a blue sign can quickly guide them to nearby facilities. This clear differentiation based on color enhances road safety by allowing drivers to make informed decisions while on the road without increasing the cognitive load of interpreting multiple sign colors for different purposes.

In contrast, other colors are designated for different functions: for example, yellow is used for warning signs, which inform drivers of potential hazards, while red typically indicates stop or prohibition. Understanding these color codes helps ensure that drivers are aware of their surroundings and can respond accordingly.