A blue sign is used to provide information related to driver services. This category encompasses various services available to motorists, such as rest areas, gas stations, hospitals, and other facilities that assist drivers. For instance, if you see a blue sign indicating the direction to the nearest hospital, it provides crucial information that helps drivers locate essential services quickly and efficiently.
In contrast, traffic regulations are indicated by other colors, typically red or white, while school zone details are marked with fluorescent yellow-green signs. Warning of hazards is represented by yellow signs, which alert drivers to potential dangers on the road. Each color and type of sign serves a specific purpose and helps maintain safety and guidance for all road users.