C21: No vehicle traffic in either direction

C21 · Prohibitory signs

No vehicle traffic in either direction

På dansk Kørsel i begge retninger forbudt

What it means
Do not ride or drive a vehicle into the restricted section from either direction unless an applicable plate permits it.
Your action
Do not ride or drive a vehicle into the restricted section from either direction unless an applicable plate permits it.
Common mistake
This is not the one-direction no-entry sign C19. A plate can also prohibit walking with a bicycle or moped.

Source check: 2026-10-16 · Order §§18–19. Road markings order 425, 13 April 2023

C Round with a red border: something is forbidden - entry, a manoeuvre, a speed, parking.

Learn it in lesson 13 → All signs

In the course

Do not confuse

C19C19No entryC21C21No vehicle traffic in either direction

C19 prohibits entry from the direction facing the sign. C21 prohibits vehicle traffic in both directions, with any applicable exceptions read from the plate.

Neighbours of this sign in the C group.
C11.1No right turnC11.2No left turnC12No U-turnsC19No entryC22.1No motor vehicles, large mopeds or tractorsC22.2No motorcycles or large mopedsC23.1No trucksC23.2No buses

Drawing from Wikimedia Commons, free of copyright under section 9 of the Danish copyright act. Code and name follow executive order 425 of 13 April 2023 on road marking. Study material, not the legal text.

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