Equestrian traffic signal - GIF

Equestrian traffic signal.

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Previously:

Biker jacket with brake and turn signal lights - photo
Evolution of railway signaling - video
Railroad switchman lantern hand signal - photo and video
Railway semaphore signals - photo
Trafficator car signaling device - photos

And like many riders they just can't 'wait' by the push button away from the traffic, but ride forward where the likelihood of the horse being scared by something on the road, fast ridden bicycles that appear without any noise/warning, is increased. That said many lycra-lunatics don't bother stopping for crossing red lights...