Road signs, No through road
What does the no through road sign mean?
The road ahead is a dead end, with no way through for vehicles.
A blue rectangle with a red and white no-through-road symbol.
What you must do
Only turn in if your destination is on this road.
Where you will see it
The entrance to a cul-de-sac or dead-end road.
Test yourself
The theory test asks you to recognise signs like this one. Try the road and traffic signs quiz (with an easy and a hard set), or read the signs revision notes. Source: Know Your Traffic Signs.
Other common road signs
National speed limitSpeed limitNo entryStopGive wayNo waitingNo stopping (clearway)Ahead onlyTurn left aheadTurn right aheadOther dangerNo U-turnsNo left turnNo right turnNo overtakingWeight limitNo motor vehiclesKeep leftKeep rightMini-roundaboutMinimum speedCrossroads aheadT-junction aheadRoundabout aheadBend aheadTwo-way trafficTraffic signals aheadRoad narrowsSlippery roadPedestrians in roadParkingBend to the leftDouble bendSide roadStaggered junctionSteep hill downwardsSteep hill upwardsUneven roadHump bridgeRoad humpsLevel crossing with barrierLevel crossing without barrierSchool or children crossingZebra crossing aheadCycle route aheadHorse ridersWild animalsFarm animalsQueues likelyNo vehiclesNo cyclingNo pedestriansHeight limitGive priority to oncomingTurn leftRoute for cycles onlyOne-way trafficHospital
Meaning based on Know Your Traffic Signs and The Highway Code under the Open Government Licence v3.0. The sign image is our own simplified rendering for learning. Always check the current Highway Code on gov.uk. Not affiliated with or endorsed by the DVSA.