[OSM-talk] Super-relations for roads

[M∡rtin Koppenhoefer]

2010/8/25 Nathan Edgars II <neroute2 at gmail.com>:
>> Good question. Why are we putting roads into relations?
> It adds useful redundancy, making it possible to find errors in a route
> (and, in the other direction, since it's easier to screw up a relation than
> ref tags, having ref tags helps with correction). It also adds nonredundant
> information for some one-way pairs, where the two directions use different
> two-way roads.


OK, but putting international roads all in one relation (the E45 is
4920 km long) is not required for this scope. If you think how often
we are splitting ways (bridges, maxspeed, turn_restrictions, oneway,
etc.) this would get to thousands of members hence lacking
transparency and being very vulnerable to editing conflicts.

You should split them in several smaller relations, e.g. per region
(and probably add those relations to super-relations as Konrad
suggested).

cheers,
Martin