Retractable bollard
Official name: Retractable electric bollard in the road
Warning
Written by Chris Prosman Reviewed by Dirk van Zuijlen
Updated
- Sign code
- J39
- Category
- Warning
- Traffic signs
- Warning: retractable electric bollard in the road.
Warning: retractable electric bollard in the road. Expect a retractable bollard; proceed only when the passage is actually accessible.
How to recognise the sign
A triangular warning or priority sign with a red border; its symbol identifies the situation.
Difference from J37 — Danger, see supplementary panel
J39: Warning: retractable electric bollard in the road. J37: Warning: danger; the type is shown on a supplementary sign below. Read the separate application of J37 too; similar appearance does not mean identical meaning.
J37 — Danger, see supplementary panelLegal basis
Explained in the course
Practise this sign for your theory exam
Retractable bollard 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
