[Tagging] Sidewalk Tagging for Routing

[Clifford Snow]

On Tue, Nov 24, 2015 at 2:12 PM, Tobias Knerr <osm at tobias-knerr.de> wrote:

> Sure, but the sidewalk attribute is essential for other, much more basic
> use cases that separate ways fail to serve.
>

Can you elaborate on why separate ways fail to serve?


>
> > I don't think relations are the right answer either. It isn't easy to
> > teach new people how to add relations. We should be able to identify
> > footpaths adjacent to roads by their spatial characteristics.
>
> But we CAN'T, at least not in any reliable fashion. "Just draw a way
> somewhere near the road and magic computers sort out the mess" is,
> frankly, not a viable option.
>
> There has to be some explicit connection between sidewalks and their
> roads. And as soon as you take this into account, the separate sidewalks
> stop being newbie friendly at all. They only seem that way because you
> pretend the main challenge does not exist.
>

Setting aside the newbie friendly issue, how do you map a crosswalk in the
middle of a street? How do you map kerb slopes when the the slope is in the
corner the intersection? I realize that both are possible, but the
complexity of the tagging required increases significantly over a separate
way.

-- 
@osm_seattle
osm_seattle.snowandsnow.us
OpenStreetMap: Maps with a human touch
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