On a narrow street lights installed in Prague

In Prague, there is a pedestrian street called Devil tavern, where you can see a real traffic light working. The question is - why is it needed if the cars on this street there? The answer is simple - in order to avoid collision of pedestrians. The fact that this is the narrowest street in the capital of the Czech Republic, the width of which reaches only seventy centimeters and if it met two people, they just simply do not disperse, and traffic helps avoid such situations. It is not known one - fined violators? See also: On the streets of London were urns with Wi-Fi. Street multi-colored gum. In Melbourne there are inverted monument.

Source: yaneznal.ru/facts/4666