[Tagging] sidewalks and tagging for the renderer

Tobias Knerr osm at tobias-knerr.de
Tue Apr 10 23:38:19 BST 2012

Martijn van Exel wrote:
> A sidewalk is not a lane and it should not be tagged as such. Doing so
> would be utterly confusing. Does the lanes proposal (which I think is
> horribly overwrought to begin with) not exclude sidewalks?

Not explicitly. And while it is true that the examples don't include
sidewalks, they do include cycleways, where we have basically the same
debate whether or not they should be separate ways.

Anyway, I see no reason to exclude sidewalks here. No matter whether you
think of a sidewalk when you hear the word "lane", the requirements are
the same as for other "stripes" of the highway: They run parallel to the
highway centreline, you want to define their relative ordering, they
share properties of the highway such as its name, but you also want to
be able to add tags to them individually sometimes.

A sidewalk=left/right/both fails when you want to define the relative
ordering, and separate footway=cycleway fail in practice because no
renderer is actually able to puzzle the highway back together from
unconnected parallel ways.


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