3D network analysis

[NorsenRuan]

Hi,
I have 97 points and 4656 lines contains 3d coordinates and have to do 3D network analysis with them. But now I am facing some problems.
First, I used ArcMap to do network analysis, but no matter where I add a stop, those stops are all "unlocked". Therefore, I cannot continue my work anymore. I doubted that's because they contains Z-cor, so I tried ArcScene to solve, however, as I used the finding route model in tutor, after adding stops I still got error message said "points are unlocked".
Could anyone told me what happened and how to solve my problems? Though I've read tutor I still can't figure out why, so thanks for giving any advice.

The file I have performing in ArcSecne is like below:

It's really a big file and contains lots of lines, so I am even not sure whether it can run network analysis in ArcGIS...

Thanks for any help again.

[JaySandhu]

ArcMap is a 2-D app. If you click on the screen to add "Stops" on a 3D network dataset most likely it will not "locate" these stops on any edge. If you have 3D locations that you want to use as Stops, put them in a point feature class and then use the GP tool CalculateLocations on it. Now you can Load Locations these 3d point features using the pre-computed Network Locations (not geometry) into a Stop layer and solve.

Jay Sandhu

[NorsenRuan]

Jay:
      Thanks very much for your help. I have succeeded on calculating the point feature, and I used it to create a Stop layer. If it is a right step, do I need to write a new model for network analysis just like tutorial do?
      Thanks again.

Norsen

[JaySandhu]

Glad it worked.

The model in the 3D network tutorial is meant for use in ArcScene where you can visualize the 3d lines but cannot directly add a network dataset and solve on it.

Jay Sandhu