Tactile paving surface indicators produced from concrete, clay and stone shop-only Inspection documents based on specific

Inspection documents based on specific inspection

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Section 2: Design considerations

describes a general model for time-stamping services producing linked tokens

Tactile paving surface indicators produced from concrete, clay and stone shop-only Inspection documents based on specific1 Scope This document specifies the nominal dimensions for surface profile features and patterns for the surfaces of pedestrian paving units, used to convey information for visually impaired people. It applies to paving units made of concrete, clay and stone. This document does not specify requirements for visibility (colour, luminance contrast or profile) except where this visibility is provided by the tactile paving surface indicator. It does not