The Charcon blister/tactile slab 450 x 450 x 50mm in yellow/buff is a precast concrete paving unit featuring a raised blister pattern. This surface profile provides an essential tactile warning for visually impaired pedestrians approaching designated crossing points or changes in pathway levels.
Typically installed at controlled and uncontrolled pedestrian crossings, railway platforms, and similar high-traffic public areas, these slabs are laid in alignment for consistent surface cues. The square format and prominent colour help ensure that guidance and hazard awareness are maintained throughout the paved area.
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