Just adding some images so you can see the progress 🙂
It should be easy to model and place all additinal objects as roofing, railings etc, add some textures variations so everything would look even more realistic … but as I already mentioned, first I plan to model only roads as it is the most difficult / important aspect of the track.
I also made some quick performance testing and it runs 60fps on my laptop with Intel HD 3000. I try to keep the mesh as simple as possible but there are still some areas which can be simplified if the performance will get worse after adding other objects later. I don’t think it is a good idea to spend too much time on it at this stage of the development.
When testing the current track the only issue was the physics (collision model) which needs to be modified a bit because there are some occasional bugs. But this is also something I can resolve once the road modeling is done.