Road and traffic signs
While this sign's restriction is in force, what must you not do?
- Sound your horn
- Begin to overtake the vehicle in frontCorrect
- Change into a lower gear
- Drive above 30 mph
Why?
This red-ringed circle is a prohibition on overtaking. You must not begin to overtake the moving vehicle ahead until you pass a sign showing the restriction has ended. It is placed where overtaking would be dangerous. Rule 109 of The Highway Code says you must obey signs giving orders.
Highway Code rules 109, Traffic signs