What is the color scheme for warning signs in traffic control?

The color scheme for warning signs in traffic control is yellow and black. This combination is highly effective for alerting drivers to potential hazards on the road. Yellow serves as a caution signal, indicating to drivers that they should be alert and prepared to encounter conditions that may require reduced speed or increased vigilance. The contrasting black text or symbols on the yellow background enhances visibility and ensures that the warnings can be easily read from a distance, even in varying light conditions.

This distinctive color scheme plays a crucial role in promoting safety by helping drivers quickly recognize and respond appropriately to warning signs, such as those indicating curves, pedestrian crossings, or construction zones. The effectiveness of yellow and black signage is well established in traffic management and contributes significantly to road safety.