Ok I understand what I did now. Thanks! I didn't realize you needed signals on both sides like that. Here is a pick of the solution to anyone else who needs it.

Im still kinda new at this game and so far I'm loving it. However I am having a slight problem with 2 of my major rail lines. I have the signals set right as far as I can tell but all trains present a no path error even thought all signals are green.
http://i.imgur.com/BDSK7V1.jpg?1
I really don't ...