Thanks for the post!
Railway Empire’s signal system is infuriating. If you can live with that, it’s very good.
It’s basically a prettier Transport Tycoon with trains only, but has other features regarding economy, hiring crew, research etc.
Except the signal system.
My God, are the trains dumb.
EDIT : and compared to Transport Tycoon, railbuilding is bliss. Tracks even can semi-automatically be made parallell to existing tracks.