[OSM-talk] Postmortem analysys

[David Murn]

On Fri, 2011-01-07 at 10:18 -0800, Nathan Edgars II wrote:
> 
> Let those broken routers choke on real-world cases where nodes really are in
> the same place (double-decker bridge that crosses a state line, for
> example). I'll continue to map correctly.


Just because you have ways crossing each other at a common point, that
doesnt mean they all have to have a node at the same point.  When youre
putting a bridge over a creek, do you simply mark the start/end of the
bridge, or do you also put a node in the middle of the bridge above the
water?  Just because a double-decker bridge crosses a border or river,
doesnt mean that each layer needs to have a node at exactly the same
point, unless youre either using low-accuracy GPS data, or delibrately
trying to make the map data harder to interpret by routers.

David