J39
Retractable bollard
Official name: Retractable electric bollard in the road
Warning
- Sign code
- J39
- Category
- Warning
- Traffic signs
- Warning: retractable electric bollard in the road.
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
