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xcwjc2020 on 15 Aug 24The tactile surface indicator is used in various pavement surfaces as a tactile indicator of potential hazards, especially for the visually impaired. Such indicators are needed in places where the public enters and exits, and such indicators can be used, for example, at street intersections, or at the edges of railway platforms. Optionally inside buildings, they can be used near stairs, elevators, etc. In some cases, legislation is passed that requires the use of tactile indicators and specifies standards for their manufacture, size, and how they are arranged.