[Tagging] Sidewalk Tagging for Routing

[Gerd Petermann]

As a co-developer of mkgmap, a software that convert OSM data
to Garmin map format,  I've looked at this problem quite 
often now. I think routing itself is not the big problem here,
unless we talk about the additional resources needed for the 
additional ways and junctions. 

Both tagging schemes have pros and cons, none is making
it easy for the mapper when it comes to map complex crossings.

Still, I tend to think that the mapping of extra ways for the 
sidewalks is the solution that requires less training and 
less "abstraction capabilities". 
One of the problems that is not well solved is the switch
between both tagging schemes. When I start to draw
extra ways for the sidewalk, where do i stop this and how
do I connect the sidewalk with the main road?

Gerd


________________________________________
Von: Marc Gemis <marc.gemis at gmail.com>
Gesendet: Dienstag, 24. November 2015 05:22
An: Tag discussion, strategy and related tools
Betreff: Re: [Tagging] Sidewalk Tagging for Routing

On Tue, Nov 24, 2015 at 1:14 AM, Bryan Housel <bryan at 7thposition.com> wrote:
> I don’t really buy the “mapping sidewalks as part of the road makes routing easier" argument, but I don’t work on routing software so maybe there really is something complicated about routing that I am unaware of.

The problem with separate ways, is that none of the current routers
will tell you that you have to cross the street to reach a house on
the other side of the road. Most likely, they will let you walk till
the next street crossing and let you walk back then. There are some
proposals to solve this problem, but no implementation so far AFAIK.

Try cycle routing on osm.org in an area with a lot of separate
cycleways (e.g. The Netherlands) and you'll see what I mean.

regards

m

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