The invention of the traffic light is commonly attributed to Garrett Morgan, an African American inventor and entrepreneur. In 1923, Garrett Morgan patented his version of the traffic signal, which featured a T-shaped pole with three positions: stop, go, and an all-way stop position to give drivers an opportunity to safely clear the intersection.

Morgan's traffic signal also included a warning light to alert drivers before the signal changed, ensuring smoother transitions and reducing the risk of accidents. His invention was a significant contribution to traffic management and safety, and it laid the foundation for the modern traffic light system used worldwide today.

Garrett Morgan's innovative approach to addressing traffic control issues has had a lasting impact on transportation systems and road safety, and his legacy as an inventor and entrepreneur continues to be celebrated in Black history.