Temporary lane closure (the
number and position of
arrows
and red bars may
be varied according to lanes
open and closed)
Lane restrictions at
road works ahead
One lane crossover at contraflow road works
Signs used on the back of slow-moving or stationary vehicles warning of a lane closed ahead by a works vehicle. There are no cones on the road.
Slow moving or stationary works
vehicle blocking traffic lane. Pass in the direction shown by the arrow.
Mandatory speed limit ahead.
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Rules and regulations - Latest 2007 
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