Traffic merges ahead onto main carriageway from the left
Warning that traffic merges onto the main carriageway from the left ahead. This sign is common at slip roads and merging sections. In the theory test it tests your awareness of merging traffic and the need to adjust speed and position. Always check mirrors and signal early.
- Shape
- Triangular
- Background
- White
- Border
- Red
- Primary symbol
- Arrow
- Secondary symbol
- Other
- Diagram reference
- 509.1
Where you'll see this sign
Slip roads and merging sections.
Test yourself on UK road signs
How well do you really know your road signs? New Driver Hub's free mock theory test pulls from official-style DVSA questions and tells you which signs you keep getting wrong.
