Theory Mastery

Sign OB504: Sub-panel: arrows point left and right, both sides apply.

OB504 – Sub-panel: arrows point left and right, both sides apply.

Series: Supplementary plates (onderborden)

Legal meaning

Supplementary plate with arrows to the lower left and lower right: the sign applies on both sides, in both directions along the road.

Source: RVV 1990 annex 1 · checked 2026-10-23

Shape and colour

White rectangular plate with two black arrows pointing down-left and down-right: the sign applies on both sides of the post.

Where the sign stands

Directly under an E sign, on the same post, in the middle of the stretch the sign covers.

What the exam asks about this sign

The question is over which stretch the sign applies: the arrows pointing down-left and down-right say the sign works both ways, so the parking ban or parking facility applies to the left and right of the post along the road. A single arrow would mark the start or end. Trap: candidates read the arrows as 'driving direction'.

No practice question uses this sign; the sections below explain it.

Often confused with

Signs in the same series

Nearby signs

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