What is the purpose of flashing brake lights in a commercial vehicle?

The purpose of flashing brake lights in a commercial vehicle is to warn others that the vehicle is slowing down or stopping. When a commercial vehicle's brake lights flash, it serves as a clear and immediate signal to surrounding drivers that they need to be aware of a potential change in traffic conditions, which includes deceleration or an impending stop. This visibility is crucial, especially given the size and weight of commercial vehicles, as their stopping distances are typically much longer than those of standard passenger vehicles. By alerting other drivers through flashing brake lights, safer driving conditions can be maintained, and the risk of rear-end collisions can be reduced.