Video encyclopedia

29/11/1910 The first US patent for inventing the traffic lights


History of The Traffic Light


How do Traffic Lights Work?

Traffic lights, also known as traffic signals, traffic lamps, traffic semaphore, signal lights, stop lights, robots, and traffic control signals, are signaling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of traffic.
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    • Essentials 

    • History 

    • Types and placement of colours 

    • Pedestrian and cyclist crossing lights 

    • Lights for public transport 

    • Turning signals and rules 

    • Speed sign 

    • Special provisions 

    • Dummy lights 

    • Technology 

    • Effects 

    • Justification 

    • Legal implications 

    • In other contexts 

    • In Unicode