3 Hours into the route I reach the Colfax Main track 2 checkpoint and what do I see? Another train on my track coming my way.

Is there a way to fix this?
Can I make that train not be there somehow?
Man, I really don't want to have to start over again, can someone please help? (I don't have RW Tools)
And if it is possible to fix, can that be explained to me in easy to understand terms?
Any help is greatly appreciated.
