
Why are there two knobs on the door of a toilet for the disabled on the train? It must have something to do with usability. But how does it help them open or close the door?
기차에 있는 장애인용 화장실문에는 두 개의 손잡이가 있는 것일까? 사용성을 향상을 위한 것임에는 틀림없어 보이는데, 이것이 장애인들이 화장실문을 열고 닫는 것에 어떻게 도움을 준다는 것일까?
@ on the train in the Netherlands (taken by iPhone 3G)

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아니 이런건 처음보는데요 ㅎㅎ
왜 두개인지 알려주셈.
누구한테 물어봐야할 것 같긴 한데, 조만간.
i think it's because the heights of the wheelchairs are different. Thus, the knob i the below should give an easier access to those who prefer it. just my guess
It makes sense. A little difference could help the disabled a lot, actually. Smart lady!