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In public places, we often had to walk around here and there when going upstairs or downstairs using escalators as we didn’t know the direction whether it is going up or down. Therefore, in order to know the direction of escalators easily and efficiently, LED was installed on the part you put your hands indicating Up & Down. This change was for people to check the direction of escalators from long distance, before knowing the direction after you reach in front of the escalator.
Chungnam, South Korea