1. I love creating routes in Surveyor. It's fun designing your own little world... laying out the land, inserting track, highways, building towns (and naming them is fun, too!), Factories, rivers & streams, forests, etc.
2. I also love being the "local" engineer, shuttling rolling stock between industries in my locos, being careful to watch signals and speed limits. Of course, I only use the main line when the dispatcher gives me the okay, because there are quite a few Class 1's who use the tracks, too! (I'm talking about A.I.'s in case you're a newbie.)
Yes, it's a computer game---- but to many of us, it's even more. It's a place to relax, to be creative, to learn about railroads (railways), to share ideas with other Trainzers, and to help others solve problems..... but, IMHO, mainly to have fun!
Dave
I'm driving your Ozark Valley route right now, it's good, great atmophere and track building (I can learn from that).
Did you use DEM for the terrain?