The game is great, and I really like the concept of a more arcade-type train game. Amazing job!
One thing I dislike however, is that when you drive a train that is very fast or has less braking power than a multiple unit, the signals don't give you nearly enough warning.
If there is a red light further ahead and you're going at full speed and start braking at the yellow light, you have no chance of stopping in time, and just have to hope that the train in front is either far enough away or has moved from your track before you get to it.