[Imports] Uploading sidewalks in San Jose, California, US

Vivek Bansal 3vivekb at gmail.com
Wed Sep 20 19:06:47 UTC 2017


Hey Frederik,

Thanks for reading about our import!

Right now the import project is for sidewalks.  After we finish doing the
sidewalks, we'll do the crossings.  But they are separate projects, and the
crossings are probably not an import since no data exists.  Thus Sidewalks
should be done in JOSM imports, crossings should be done in ID editor.
It's easier and faster to do them separately and in that order.

We plan on doing crosswalks afterwards as soon as possible.

I will add language and a step to make sure to connect to crossings already
in OSM already.

-Vivek


On Wed, Sep 20, 2017 at 12:22 AM Frederik Ramm <frederik at remote.org> wrote:

> Hi,
>
> On 19.09.2017 21:09, Vivek Bansal wrote:
> > The Wiki:
> >
> https://wiki.openstreetmap.org/wiki/Santa_Clara_County,_California/San_Jose_Sidewalk_Import
>
> Let me try to understand this better. The wiki page says
>
> "We recognize we could be creating sidewalk islands since we aren't
> dealing with crossings or connecting the sidewalks to streets but most
> routing software doesn't use sidewalks and typically uses left/right
> tags. Regardless, adding sidewalks will eventually make things better."
>
> At the same time you are talking about the "pedestrian network" and
> "fundamental infrastructure mapping". But it isn't a network if it isn't
> connected, is it? You must be mapping zebra (and other) crossings too,
> so that actual pedestrian routes can be computed, or else the use of the
> data you're adding would be limited to walking between places on the
> same block of houses?
>
> Please confirm that your process will not be limited to "uploading"
> sidewalks but also ensuring they are properly connected to what's there
> on OSM already, and thereby (through crossings etc.), also to each
> other. Otherwise what you are doing is nothing better than MS Paint for
> maps - or potentially worse, since a pedestrian routing engine that
> *today*, because of the lack of sidewalks, snaps start and destination
> to the nearest road and leads the pedestrian along that, might choose to
> snap to a sidewalk instead and be caught on a routing island.
>
> Bye
> Frederik
>
> --
> Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"
>
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