Hi/Hallo!
When making snowscenarios I had snow on my tracks in tunnels so I changed the trackproperties to 'tunneltrack DE'. Now they show up in the trackmonitor as tunnels and the sound changes but...
I still have snowywhite tracks in the tunnels! 
How can I get rid of that problem?
Paul
You will have to define your tunnel track without a winter texture.
Inside the XML/BIN file of your tunnel track you will have to change the value from "[08]my_texture_name" to "[00]my_texture_name". This will prevent the game from loading winter textures.
That's wrong. Here you will only find the supersleepers for junctions.
Instead you will have to define a new loft object (tunnel track XSEC and tunnel track BIN) in which you will have to change the [08] to [00].
Thanx again for your help Prelli!
Getting further and further into routebuilding, I run into more and more problems and questions. Hopefully in a short while I can answer more questions than I ask on this forum 
Anyway: I did as you suggested and voilá!
Another problem solved 
But... Can you maybe also tell me where I can make the track "Tunnel" so that is shows up as tunneltrack in the monitor? I used the standard SBB gleis 2 as a base for the textureless version so now it doesn't show as tunnel in the monitor... 
I did a short trip through the existing Tracks:
Assets\Kuju\RailSimulator\RailNetwork\Track\bath_temp_track02_tun01.bin
there is a line:
<isTunnel d:type="bool">1</isTunnel>
I think you have a >0< in your track.bin.
StS
You are absolutely right! That did the trick! 
Thanx!
