[OSM-dev] Data source for robot

Jochen Topf jochen at remote.org
Tue Oct 12 09:48:29 BST 2010


On Tue, Oct 12, 2010 at 04:36:34AM -0400, Peter Budny wrote:
> Frederik Ramm <frederik at remote.org> writes:
> > Peter Budny wrote:
> >> I'm building a robot as a school project that will use data from TIGER
> >> imports and automatically create route relations for US state roads.
> >
> > My advice is not to do it; if it can be done automatically, route
> > relations are not required
> 
> If route relations are not required, then what are
> http://wiki.openstreetmap.org/wiki/Relation:route#Road_Routes for?

Good question. What are they for? I never understood that either. :-)

> They /are/ required, because roads may be discontiguous in various ways:
> a road may change names (e.g. Main Street North becomes Main Street
> South, but to a driver or pedestrian, both are just one continuous Main
> Street), or even be physically discontiguous (some state and even US
> Highways do this).

So?

Is any application actually using this? And what for?

I am not beeing facetious, what are these routes actually useful for that
the tags on the roads don't already do?

Jochen
-- 
Jochen Topf  jochen at remote.org  http://www.remote.org/jochen/  +49-721-388298




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