What it means
Command: Area reserved for heavy construction machinery. Motorists should be extremely cautious near these zones.
What to do
- If you are not driving a construction vehicle, stay out of the marked lane or area.
- Check the sign for operating times; outside them the lane is usually open to all.
- Usually marks site accesses; expect mud and slow crossings nearby.
In the K53 test
Blue circle means command: the lane belongs to a construction vehicle while the sign applies. Using a reserved lane to jump a queue is the offence being tested.
Where you will see it
In areas where mining or industrial activity requires construction-vehicle routes.
