What does a blue traffic sign typically indicate?

A blue traffic sign typically indicates directions to services for travelers, such as hospitals, gas stations, rest areas, and lodging facilities. This color is specifically utilized to guide drivers to helpful resources, making it easier for them to find necessary services during their travels. The use of blue for this purpose is standardized to ensure consistency and quick recognition by drivers.

Additionally, warning about hazards, speed limits, and stop signs are represented by different colors, such as yellow for warnings, white for speed limits, and red for stop signs. This clear color-coded system helps drivers quickly understand the nature of the sign and respond appropriately, enhancing overall road safety.