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HAUC
HAUC

Intervention

S2.3.3
Intervention is required where the mean level of edgings, channel blocks, surface boxes and ironware etc., do not coincide with the mean level of the adjacent surfaces, within ± 10 mm.
S2.3.4
For drainage fixtures, intervention is required where the feature differs from the mean level of the adjacent surfaces, within a tolerance of +0 mm to -15 mm.
S2.3.5
For pedestrian crossing points, intervention is required where the edge depression at the interface between the paving (including tactile paving) and the dropped kerb exceeds 6 mm over a continuous length of more than 100 mm in any direction.