Missing Edges in NDS

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Missing Edges in NDS

Kaspatoo
Hello,

I did now two runs with different OSM's.
In both the problem is that the edges Feature is empty. Thats why I cannot proceed an analysis on this network dataset.

At least in the second try there appear much errors:


2011-11-13 20:25:08 INFO: Writing OSM ways to feature classes...
2011-11-13 20:25:08 ERROR: The referenced node '27238392' of the way '4437926' does not exist. Therefore this way is ignored.

I cannot found out what I did wrong.

With regards,
Sebastian
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Re: Missing Edges in NDS

peterseva
Hallo Sebastian,

you haven't done anything wrong. There are two different ways OSM data is extracted. If you define a bounding box or bounding polygon, you probably expect that the data inside this area is complete. However, there are also ways (edges) that cross this boundary. These ways reference nodes that lie inside and nodes that lie outside this boundary. Some tools also include these nodes that lie outside this boundary. Other tools don't care about nodes outside this boundary. So does osmosis. If you want to make sure that all needed data is extracted, you have to use a buffer zone.

Best regards,
Eva
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Re: Missing Edges in NDS

Kaspatoo
Hello,

yes at first I thought that the errors came from the crossing edges.

But I think you did missunderstand me.
There are no egdes at all in the network dataset.

Paderborn_OSM.7z

Best regards,
Sebastian
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Re: Missing Edges in NDS

peterseva
This post was updated on .
Hello Sebastian,

I've just converted your OSM file to an ArcGIS network dataset. And
everything is fine. The geodatabase contains the following feature classes:

   - barriers
   - pois (some points of interest)
   - roads (highways, edges)
   - turns (turn restrictions)
   - paderborn_ND_Junctions (junctions)
   - paderborn_ND (network dataset that references the feature classes
   roads, barriers, and the junctions)

And network analyses are also possible (e.g. route).

Could you please send me your geodatabase? So I can check what's wrong with
it.

Best regards,
Eva