I agree on your tagging remarks, but I’ll elaborate on the status.

  1. In belgium we define a ‘fietspad’ (in it’s legal sense) as:
  • The part of the road marked with white stripes (no full line, the interrupted ones) at both sides, that’s too narrow to be a car lane
    (and it should by default be assumed these are one-way for cyclists, two-way cycleways shouldn’t be marked as such, but sadly there’s alot of improper use of the markings)
  • The part of the road that’s been marked with traffic signs D7 or D9.
    (and these can be one way or two way).

For the first you add cycleway = lane to the highway it’s part of.
For the second, you can go with cycleway = lane if it’s not distinctly separated from the road, if there’s a good bit of space between where cars drive and bikes drive you can just use highway=cycleway

  1. ‘Fietssuggestiestroken’ are tricky.
    They have no legal status whatsoever. You can drive on them, and even park on them. It’s an attempt to help clarify there’s cyclists on the road and caution needs to be taken by drivers.
    Ideally, these are wide enough, so the cyclist enforces his own position, keeping cars behind them. There’s been alot of variations to indicate these:
    The bicycle icon with ^ markings over them.
    Green, red, grey, orange (‘oker’) colored markings
    Marking an area by using big headed ‘nail’-like markers (approx 15cm circular marker)

    In Flanders, guidelines are to only use grey or ‘oker/orange’ markings. While initially alot of them were small (0,80-1,00m whereas the recommendations were 1,20-1,50m), recent new guidelines let it fluctuate along with the road with, but marked zones of 1,70m are no exception in that aspect. It’s come to the point where concrete roads, they are actually created with strips of colored concrete rather then just marking on top. If a single road lane is approx 3m wide and the ‘suggestion band’ is 1,70m, it’ll at least encourage the cyclist not to let overtaking cars push them to the side.

  2. Shared lanes as you show do not exist. A properly used ‘Fietssuggestiestrook’ aims for the same behaviour.

  3. We have something new called ‘fietsstraat’. It’s a road concept where speed is limited to 30 km/h. Cars are allowed, but are not to overtake cyclist. It has it’s own (legal) traffic sign now too.