[OSM-newbies] Quality data

[ael]

Claudius Henrichs wrote:
> ael:

> Actually the JOSM-Validator is doing a very good job when it comes to 
> crossing ways. It's warnings are 100% correct for me for 3 months now:
> 
> You get a "crossing ways" warning if two ways cross without sharing a 
> node *and* not being tagged with different layers. As soon as you add a 
> correct layer tag to the bridge/tunnel way the validator-warning is gone.

But people worry about allowing a shared node with different layers: see
earlier in the thread. My road bridge over another road is an example
where the router then goes wrong. See the subsequent discussion...

The validator also used to object to crossing ways even when one has a
highway tag and another is a boundary which is really absurd. I don't
know whether it still does this: the current version deadlocks josm, so
I don't know. I guess the deadlock might be an interaction with another
plugin: I haven't explored.

ael