[Tagging] Linking Sidewalks to Highways

Paul Allen pla16021 at gmail.com
Mon Sep 21 15:54:40 UTC 2020


On Mon, 21 Sep 2020 at 16:11, OSM <osm at bavarianmallet.de> wrote:

>
>
> Am 21.09.2020 um 14:54 schrieb Paul Allen:
>
>
> This isn't as simple as you make out.  Assume that I am at point A and
> wish to
> go to point B, which involves a "wild crossing" at some point between the
> two.
> However, there is a real crossing at point C, a mile beyond point B,  A
> router
> will direct me to travel to point C (a mile further than my destination)
> in order
> to cross the road there, so I can then walk a mile back to B.
>
>
> You really walk a mile beyond and back again, knowing your destination is
> - say 10-20 m - across the street?
>

Of course I wouldn't

> Or do you not know that your destination is at the street you walk along?
>
> I call those assumes a 'theoretical island problem'.
> a) Your point A is as near at point B, that you know or can estimate where
> you have to cross.
> b) Your point A is so far away from point B , that there is - or at least
> should be mapped - another possible crossing before ('virtual' connection
> at a T-crossing or similar) .
> c) Most routers have a display - and the view should show your destination
> (or route path to) across the street.
>
> Maybe my view of a) and b) is a bit european centric - but I assume
> foreign cities would match and for foreign countrysides the seperate way
> problem would not apply.
>
> Georg
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