Railroad 
To dream of a railroad symbolizes careful and meticulous planning in the pursuit of your goals.
To see an obstruction on the railroad suggests obstacles in the way of your life goals. It may also point out that you have gone off track from your original objective.
To dream that you are walking alongside railroad tracks implies your satisfaction over the competence you exhibited in completing your tasks.
Train
A dream about a moving train signifies the current journey you are on. If you feel scared or have motion sickness while in the train, it indicates that you are sorry about something, and that you have some obstacles you need to overcome soon.
To see yourself on top of a stationary train car, it means that you will make a journey with an unpleasant companion, with whom you will end up over spending and waste excessively thus hurting you financially.
If you see railroads without a train in your dream, it means that you will gain direction and happiness in an endeavor you have recently decided upon.
On the other hand, to be on a train moving smoothly along without a track, it indicates that you will be worried over an affair which could eventually benefit you later for a better life.
Seeing a freight train in your dream, it is an omen of changes which will lead to your elevation.
Subway
To dream that you are in the subway implies that you are attaining your objectives without having to use much physical effort. You are discovering your inner spirituality and personality. It may also mean that you are being too impulsive and you should think carefully before making a decision.
Boxcar
To dream about a boxcar or cable car foretells that you will earn enough money to live as you wish.
Roller Coaster
To dream of riding on a roller coaster is a portrayal of the highs and lows in your life. This may be caused by your life choices and outcomes.
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