[OSM-talk] Layer transitions
Harald Kleiner
e9625163 at gmx.at
Wed Jul 29 20:19:21 BST 2009
Hi!
I want to talk about this page on the wiki describing how to map tunnels
correctly:
http://wiki.openstreetmap.org/wiki/Tunnel#How_to_Map
Especially the last paragraph causes headaches to me:
"If the tunnel ends in a junction you'll need a small un-tunneled way
between the end of the tunnel and the junction"
Where does this rule come from?
Does this mean that two ways connected on a junction like this may not
be on different layers?
| way B
|
|
-----------------*------------------ way A
Is this statement right:
The only valid way to switch layer is this setting:
Way A Way B
----------------------------*------------------
(a node where exactly one way starts and exactly one other way ends)
Thank you,
Best regards Harald
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