Für die Euskirchener Str. steht ab Palanterstr. ein "motor_vehicle=destination", also Anlieger frei für die Fahrradstraße. Ich weiß allerdings nicht, wie weit dies reicht und ob es z.B. ab der Rheinbacher Str. für alle frei ist ("motor_vehicle=yes", wie aktuell eingetragen).

[French: auto translated from English]

S'agit-il d'un îlot ? Il touche la rive.
Is this an islet? It touches the bank.

S'il s'agit d'un îlot, la forme doit être corrigée et la zone ajoutée en tant que rôle=intérieur à un multipolygone de la voie navigable.
Dans le cas contraire, il convient de supprimer l'étiquette « îlot » et d'ajuster la forme de la voie navigable.

If it is an islet, the shape needs to be corrected and the area added as role=inner to a multipolygon of the water way.
Otherwise, we need to remove the islet tag and adjust the shape of the water way.

There are a lot of paths here and also close to the airport. The off-road vehicle area is supposed to be the area that has been tagged here with name=Montessa Park. Apart from the question whether it makes sense to map all paths if everyone can drive wherever they want, they should probably also be tagged appropriately, something like motor_vehicle=permit.

But what about all the other paths: Are they informal? informal=yes or perhaps access=no?

I vaguely remember a sign at roughly this position, facing south, that forbids accessing the area to the north, which would make this path "access=no". Could someone check? Thanks.