What it means
You'll see this where turning off would be dangerous, or where traffic is being kept in one flow.
What to do
All vehicles must go straight on. You may not turn left or right here.
How to read mandatory signs
Mandatory signs are blue circles, and they tell you what you must do. If you see a blue disc, it's an order rather than a suggestion.
More mandatory signs
- Vehicles turn right junction
- Vehicles travel straight or right
- Pass to the left
- Compulsory cycle track
- Compulsory pedestrian foot path
- Compulsory track for cattle
On the way to your test? Read how the NTSA test works and how the Model Town Board is used.
