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What are Tactile Ground Surface Indicators (TGSI’s)?

Tactile Ground Surface Indicators ( TGSI ) provide cues to members of our community who are blind or vision impaired with their orientation: a person’s awareness of where they are, where they are going or where they have been.

Warning Tactile Ground Surface Indicators (TGSIs) indicate an approaching hazard but not what the nature of the hazard will be. When used in conjunction with Directional Tactile Ground Surface Indicators (TGSIs) , they provide a ‘message’ to pause and consider a change in direction.