Not normally used in Victoria
The Bidirectional Hazard markers are used to delineate the nose of an
island or other obstruction where traffic may pass the obstruction to
either side.
Typical sizes for the hazard markers are:
1800mm x 300mm
for D4-2-1,
400mm X 1000mm for D4-2-2 and
450mm x 600mm for D4-Q01.
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