TT is a 1:120 scale, very popular in former Eastern Germany and Czechoslovakia. Even now, there are number of new manufacturers, with lot of different products for this size.
Since I have lot of items for many years in a box, the decision about scale was easy, it also allows me to place lot more things on the layout size than in H0.
I started constructing the three separated sections, as shown on the pictures.
Middle section with base for hidden staging station.
Below is right side section and middle section.
