J17
Road narrows
Warning
Written by Chris Prosman Reviewed by Dirk van Zuijlen
Updated
- Sign code
- J17
- Category
- Warning
- Traffic signs
- Warning: road narrows.
Warning: road narrows. The carriageway narrows on both sides; adjust position and speed to the available space.
How to recognise the sign
A triangular warning or priority sign with a red border; its symbol identifies the situation.
Difference from J18 — Road narrows on the right
J17: Warning: road narrows. J18: Warning: road narrows on the right. Read the separate application of J18 too; similar appearance does not mean identical meaning.
J18 — Road narrows on the rightLegal basis
Explained in the course
Practise this sign for your theory exam
Road narrows belongs to the Warning category. In the CBR theory exam a traffic sign is almost never asked on its own: you are shown a situation and have to know what you may or must do in it. In the free sign trainer you practise the signs by category, with the explanation shown right after every answer.
Practise traffic signs for free Practise car theory: free mock exam
