Obligations: blue arrows, D7 and arrows on the road

First memorise the colour code: blue circle = you MUST (obligation), circle with a red border = you may NOT (prohibition). The colour gives you the answer before you even read the symbol.

D1 — Compulsory direction

D5 — Compulsory roundabout

D7 — Compulsory cycle path

💡 D1: follow the arrow (a single direction, or a choice between those shown). D5: go round the roundabout to the right. D7: the cycle path is compulsory for those it applies to.

The D1 imposes the direction: arrow pointing up = straight ahead, arrow to the right = turn right. If it shows two arrows, you choose one of the two — the other directions are prohibited. Ignoring a D1, even on an empty street, is an offence.

The D7 indicates a compulsory cycle path. For you, everything hinges on the additional panel below it: it specifies whether class B mopeds must also use it, or whether they are excluded. With no mention of class B, the D7 applies to bicycles and class A. Class A therefore follows the D7 like a cyclist; class B reads the small panel first.

One last obligation, this one on the ground: the selection arrows painted before a junction. Once you have entered a lane marked with arrows, you follow the direction shown. So choose your lane in advance, as soon as the arrows appear.