The invention of the traffic signal is credited to Garrett Morgan, an African American inventor and entrepreneur. In 1923, Morgan patented an improved version of the traffic signal that featured a third, middle position between "stop" and "go" to allow for a pause in traffic flow. This innovation helped improve road safety and reduce the likelihood of accidents at intersections.

Garrett Morgan's contributions to traffic management have had a lasting impact on modern transportation systems, and his invention remains a crucial component of traffic regulation worldwide. Morgan's work as an inventor and entrepreneur exemplifies the ingenuity and talent of Black innovators throughout history.