The image shows how measurements must be taken perpendicular to the sloping surface, not vertically.
Standard
AS2007
Section(s)
2.3.5(a)
Figure
2.1
Helpful Note
The NCZ 1 and the effective height of the barrier must be maintained when a barrier is sloping, so in order for measurements to comply they must be measured perpendicular from the top of the barrier.
The NCZ 1 and the effective height of the barrier must be maintained when a barrier is sloping, so in order for measurements to comply they must be measured perpendicular from the top of the barrier.
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