The MSTS 1 Route Editor can be a beast to use, but it's capable of some amazing results, here you can talk with the wizards that are building some of the fantastic routes available and learn how to make your own.
THe whole point of the standardised TSection (whuich XTRacs 3.1 uses) is that you won't . up routes, however you will need to run horace on some routes which aren't STracks Compatible.....With that he remembers he needs to upgrade Valley to work with it