I was given the task of making a trackplan for my little brothers n scale pike, Two loops with 16 and 15 inch radius was all the guidelines i was given, So i created a plan in an urban setting with a industrial spur with 3 industries crammed on it, and a carfloat.
I supose little brothers age is irrelavent, this layout looks like hours of fun. Enough switching to to keep one entertained, good continuous running, and a conection to the outside world. Sometimes the KISS priniple (keep it simple, stupid) can not be beat.
i like it. i had originally considered something like that, but opted for more of a dogbone configuration for mine.