What is the main purpose of warning signs like L9 and L10?

Warning signs, such as L9 and L10, are designed primarily to forewarn drivers of potential hazards they may encounter on the road. The critical function of these signs is to alert road users to situations that could affect their safety, such as curves, pedestrian crossings, or other dangers.

These signs typically use recognizable symbols and colors—such as yellow and black—to capture attention and convey the need for increased caution. Drivers are trained to recognize these warnings and to adjust their speed or driving behavior accordingly to navigate safely through potentially dangerous areas.

In contrast, speed limit signs set specific maximum or minimum speeds, turn restriction signs indicate where turns are not allowed, and signs indicating authorized access inform drivers about which vehicles are permitted in specific areas. While all of these signs play important roles in road safety, the unique purpose of warning signs is specifically tied to informing drivers about potential hazards ahead.