Those traffic signs can be placed for bikes, and paint on a road is not made specifically for cars. With that in mind, the paint is clearly intended for bikes here.
Also, why would you need a “cars prohibited” on a bike road at every visible interval? Why would you need bollards? Are you worried that you’re going to accidentally drive down a bike road? Are the large bikes painted onto the obviously-narrowed lanes not obvious enough?
A seriously weird comment.
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