[OSM-talk] [tagging] Bridge proposal

Raphael Studer studerap at gmail.com
Thu May 15 07:27:48 BST 2008


>> Maybe you should wait some days. There is some activity on the talk
>> page cause of the Bridge_and_Tunnels Relations proposal:
>> http://wiki.openstreetmap.org/index.php/Relations/Proposed/Bridges_and_Tunnels
>
> A proper definition of what a relation is may be a good start ;(

> I don't see why a single mapped element should be defined as a 'relation'. A
> relation would be used to join a number of mapped elements making up a bridge,
> as where several ways make up the one 'bridge' such as some complex motorway
> junctions. Adding AREAS to the equation simply reopens the debate whether
> EVERY way should properly define it's area. i.e. roads carriageways making up
> the bridge should have widths as well.
> And then add multi-deck bridges and roadways which are single ways on top of
> one another ;)

This multi-deck bridges would be a good example, why having relations
for bridges.
An other example are if you have a highway and a cycleway on the same
bridge. Or a railway and a footway.

Regards,
Raphael




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