Textured paving stones for the blind

Throughout Japanese cities, specially textured paving stones embedded in pavements guide blind pedestrians along a safe route. A change in texture - to lateral bars, lengthwise bars, knobs etc - indicates a change in direction, stairs or obstructions ahead. They also mark the edge of platforms, helping sighted people too.

From '283 Useful Ideas from Japan', by Leonard Koren (published by Chronicle Books, San Francisco, 1988, and available for L5-95 from Neal Street East shop, 5 Neal St, London WC2, tel 071 240 0135).

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