[OSM-talk] Abandon all ways: a polemic
frederik at remote.org
Tue Mar 20 18:56:07 GMT 2007
Laurence Penney wrote:
> I don't like how error-prone we are with roads that are not
> perfectly uniform: when a road comes to a bridge the way stops, a new
> little way starts with one extra "bridge=yes" tag, then the way
> restarts with, hopefully, the same attribute set as before the bridge.
All true, and I share your concerns, especially in situations where
there is some kind of modification to a way that exists only for a small
stretch (e.g. a little bit of pedestrian area in the middle, or a little
bridge or tunnel). Other data models solve this by "restricted
attributes", where the attribute can apply to only one lane or only a
stretch of the way being described. So you could have a long road
modeled as one way, with restricted attributes like "bridge from
position 1000m to position 1500m", "oneway between intersections A and
B", or "surface=gravel for the last 500 metres".
Your idea of ditching ways altogether because their proper use is not
enforced seems a bit over the top to me. The same discipline that you
would ask of mappers (and their editors) working with the segments-only
approach would, if applied to our current world, produce the same
quality of results, no?
Frederik Ramm ## eMail frederik at remote.org ## N49°00.09' E008°23.33'
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