Route has progressed quite far so I'll ruin it for you all
Damon, you were very close and Tom that's why im doing it in this way.
It's a branch based
very loosely on the St Albans Abbey branch, in an area similar to Epping Forest.
Starting at a country terminus with sidings (and refueling facilities for diesel and steam trains).
After leaving the terminus you pass through a residential area and then delve straight into the forest. When the trees clear you are given a clear view of the preservation society's yard including sheds and turntable.
Fast services can speed through the first station, or stopper services can be looped into the platform. After re-joining the mainline you pass the crossover points to the heratige railway, (frequently used for excursions...), round the bend and enter they valleys, opening up to a 125mph speed limit - a perfect place to open up those valentas on the early morning commuter services.
Screenies to come in the next few days...