In this paper we evaluate a recognizability of elevator's open/close signs. Aims of this research are to examine which sign is easy to recognize among three type signs; English, Chinese ideograms, Arrows, and which factors influence recognition. A task of the experiment was showing a video-scene, in which someone tries to get on or off an elevator, so the subject should select a suitable sign. It was found out that [OPEN/CLOSE] is good, and [開/閉] is not bad, but Arrow sign is bad to recognize from the result of experiment. Therefore, we carried out door experiment to investigate the reason why [開/閉] was hard to be recognize than [OPEN/CLOSE] by comparing [Push/Pull] with [押/引]. The result showed that [押/引] was easier than [Push/Pull]. Thus, we can say that resemblance of the sign's shape is an important factor that influences recognition. And, we can say that adeptness to the characters is important too, from the result which English-speaking subjects distinguished better English ideogram, and Japasene subjects distinguished better Chinese ideograms. Also, we considered better: why arrow sign is bad, and the importance of showing a real situation, and so on.
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