Large 4 track US "streamliner" N-scale layout

This is the main layout I am working on at the moment.

It is a 14m x 1.2m US streamliner passenger layout. Setup lines cater for N-scale trains up to 3.2m long.

https://youtu.be/lPdaJMAouk8    (sorry , have a slight cold at the moment so description is a bit breathy)

I still haven't figured out what I'm going to do as backscene at the left end (start of video), and there is obviously still a lot of scenery work to do.. Keep me busy for quite a while.

All tracks run on either DC or DCC as there are intentionally no links between the tracks.

Here are a couple of pics of the semi-complete parts