I love this route. Wrote a small sceanrio for it. I have one problem with the route.
I wanted to create AI traffic starting east of Ensfield, then heading west, crossing the branch line. I created sceariomarkers for this purpose, but it seems only a valid path can be found till Ensfield platform 1. Maybe some track is not connected properly?
Few minor comments:
The signal at Edenderry platform is floating above the platform.
No platform marker at Ensfield platform 2
No portals on the main line.
A confusing point: On UKTS you entered UK for country, in your description you say "Ireland" For my scenario I placed in UK, following this convention and to avoid further confusion. It doesn't bother me very much, both UK and Ireland are oversee non-continental