Warning signs
T-junction ahead (left)
What it means
The road you are on ends at a T-junction, so there is no straight on. The thicker arm shows the main route runs left, with the minor road joining from the right. This sign is only used where you have priority, so traffic waiting on the right gives way to you - but never assume they have seen you.
Highway Code Rule 146 — read it on GOV.UK
More on signs like this: Warning road signs explained: junctions, bends, narrowing roads and hazards
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Sign images: Department for Transport, © Crown copyright. Used under the Open Government Licence v3.0.