T-TRAK modules use Kato Unitrack http://www.t-trak.org/index.html
See articles in June 2016 Model Railroader
I tried to sell my two cents worth, but no one would give me a plug nickel for it.
I don't have a leg to stand on.
I built a mini-modular layout using Kato Unitrack and I simply nailed the track to the subroadbed. You have to drill out the holes first.
You don´t need to solder the joints as they are designed for maximum connectivity. The connection is pretty rigid, but can be disconnected with a gentle pull. Kato Unitrack is also designed to be taken apart and re-assembled, soldering the joints is utter nonsense!
I use Unitrack on my N scale layouts. I secure it using caulk as well, but you could use regular white glue if you want to. I also solder the rail joints together for maximum electrical contact flow.
Are any of you using Kato N scale Unitrack? If so, can you give any tips? How difficult is it to disconnect if you decide to modify a plan later on? I am plannig a simple loop with a couple of sidings as a way to ease back out of the armchair. MR Editors seem to like caulk for securing Unitrack to teh baseboard. What are you using?