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What Are Tactile Ground Surface Indicators?

Tactile ground surface indicators, abbreviated as TGSI’s, are designed to help the blind or those with impaired vision, to provide direction of way and to alert them of imminent obstacles and hazards. The affected people can sense TGSIs via the soles of their feet and the contrast of illumination neighboring ground substrate. More than 300,000 Australians, mostly above the age of sixty-five, are visually impaired or blind.

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