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Around us there are a lot of special groups for whom going out of their living is very difficult, we need to pay special attention to, the design targeted on the special designed for the blind in the traffic light.In the flow path, road safety is one of the problems we can not ignored. So blind don’t know when crossing the road to when it is in the red light when it is green, and through the pedestrian crossing in the direction of the perceived problems, especially at night, because the blind man walking slowly,