Hi truemarmalade, I'm not sure you're using access=yes correctly. Tagging sidewalks this way means that *any* mode of transport is allowed to use this sidewalk, including motor vehicles, which is not true. My first guess of your intention is that you mean to indicate that there is public access to these sidewalks for walking, which is already implied by highway=footway and therefore there is no need for an access tag. If there are signs indicating that bicyclists should also use the sidewalk, then you could add foot=yes and bicycle=yes, but I don't expect this to be the case.