Al Jazeera - A brief history of the traffic light and why we need a new colour:

https://www.aljazeera.com/news/2024/5/25/the-history-of-traffic-lights-and-why-we-need-the-colour-white

#TrafficSignal #TrafficLight #TrafficSafety #Throughput #Efficiency #ParliamentSquare #London #WilliamPott #Detroit #GasLight #GarrettMorgan #ElectricLight #SemaphoreSignalling #Semaphore #History #TransportationEngineering #Engineering #Transportation