There are some areas in the model that have gaps in the surface (see attached image).
I checked the specificy region in the corridor several times and I can’t find anything wrong with it. The strange thing is that the gap affect only part of the corridor region.
I attached a screen shot of the corrior as well.

Thanks,
Loris

Hi Loris,

This is a known issue (you’ll see it mentioned in the release notes for the Autodesk Civil Visualization Extension). The workaround is to manually insert an extra station into the region, a very small distance (a few mm) after the start of the region where you see this problem.

Rgds, Bruce

Hi Bruce and thanks for your quick reply.I am new to the software so I wasn’t aware of this known issue. I should have read the release notes, I guess.
I managed to fix the gaps by re-targeting the subassemblies in the region, but your solution of adding a section is way faster!
Thanks again for your help.
Loris

Dear Bruce,
You have already replied to my question below (marked with red), through .(JavaScript must be enabled to view this email address).
I’m aware about the “few millimeters issue”. I have already applied the extra cross-section and indeed the geometry has been created. The gap is not being created at region’s boundaries. It is being created 1-2meters after that (Please check the attached picture). 

I’m currently using Dynamite Vsp, which I have downloaded through autodesk subscription service (Civil Visualization Extension) for a highway engineering project.
I would be grateful if you could help me with a problem that I encountered in Dynamite Vsp:
Every time that a subassembly changes in my corridor (within the same region), It results a gap very close to this area, when I try to import it to 3ds max (see attached pictures).
I even tried to split the regions but I still get the same result.
Since the tutorial that have been provided with Dynamite Vsp is using a corridor with same “side” subassembly along its entire length I don’t know how to fix this problem.
Thank you and best regards,
Kostas Paslis

Thanks Kostas,

Can you upload your DWG file so that we can take a look. Please also log this defect with Autodesk as well though.

Rgds, Bruce