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Road signs, Traffic merging from left

What does a triangle showing two roads merging mean?

Traffic merges from the left ahead, and neither road has priority.

By VikasReviewed by VikasMethodologySources
Traffic merging from left

A red-bordered triangle showing a side road merging from the left.

What you must do

Adjust your speed and position so traffic can merge safely; do not assume you have priority.

Where you will see it

Where a slip road or lane joins from the left.

Test yourself

The theory test asks you to recognise signs like this one. Try the road and traffic signs short test (with an easy and a hard set), or read the signs revision notes. Source: Know Your Traffic Signs.

Other common road signs

National speed limitNational speed limitSpeed limitSpeed limitNo entryNo entryStopStopGive wayGive wayNo waitingNo waitingNo stopping (clearway)No stopping (clearway)Ahead onlyAhead onlyTurn left aheadTurn left aheadTurn right aheadTurn right aheadOther dangerOther dangerNo U-turnsNo U-turnsNo left turnNo left turnNo right turnNo right turnNo overtakingNo overtakingWeight limitWeight limitNo motor vehiclesNo motor vehiclesKeep leftKeep leftKeep rightKeep rightMini-roundaboutMini-roundaboutMinimum speedMinimum speedCrossroads aheadCrossroads aheadT-junction aheadT-junction aheadRoundabout aheadRoundabout aheadBend aheadBend aheadTwo-way trafficTwo-way trafficTraffic signals aheadTraffic signals aheadRoad narrowsRoad narrowsSlippery roadSlippery roadPedestrians in roadPedestrians in roadParkingParkingBend to the leftBend to the leftDouble bendDouble bendSide roadSide roadStaggered junctionStaggered junctionSteep hill downwardsSteep hill downwardsSteep hill upwardsSteep hill upwardsUneven roadUneven roadHump bridgeHump bridgeRoad humpsRoad humpsLevel crossing with barrierLevel crossing with barrierLevel crossing without barrierLevel crossing without barrierSchool or children crossingSchool or children crossingZebra crossing aheadZebra crossing aheadCycle route aheadCycle route aheadHorse ridersHorse ridersWild animalsWild animalsFarm animalsFarm animalsQueues likelyQueues likelyNo vehiclesNo vehiclesNo cyclingNo cyclingNo pedestriansNo pedestriansHeight limitHeight limitGive priority to oncomingGive priority to oncomingTurn leftTurn leftRoute for cycles onlyRoute for cycles onlyOne-way trafficOne-way trafficNo through roadNo through roadHospitalHospitalFalling or fallen rocksFalling or fallen rocksSide windsSide windsTunnel aheadTunnel aheadFordFordRoad worksRoad worksLoose chippingsLoose chippingsLow-flying aircraftLow-flying aircraftOpening or swing bridgeOpening or swing bridgeTramsTramsNo busesNo busesNo goods vehicles over the weight shownNo goods vehicles over the weight shownNo towed caravansNo towed caravansWidth limitWidth limitLength limitLength limitPass either sidePass either sideStart of motorwayStart of motorwayEnd of motorwayEnd of motorwayTourist information pointTourist information point

Meaning based on Know Your Traffic Signs and The Highway Code. The sign image is an official Department for Transport sign (Crown copyright) from Wikimedia Commons, reused under the Open Government Licence or the public domain. Always check the current Highway Code on gov.uk. Not affiliated with or endorsed by the DVSA.