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

Frederik Ramm frederik at remote.org
Wed Sep 20 07:20:48 UTC 2017


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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