Traffic lights with countdown indicator

############################# Video Source: www.youtube.com/watch?v=_QSpwnHPma8

Traffic lights for pedestrians with countdown indicator, sound signal and dynamic display.The same dual-colour LED display for cyclists works in both phases ...

traffic lights, traffic engineering, inżynieria ruchu, sygnalizacja świetlna, BRD, Bezpieczeństwo ruchu drogowego, pedestrian safety, Bezpieczeństwo pieszych
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