Dreams of railroad tracks symbolize your life choices.
If you are on track with your highest purpose, then this dream will be pleasant and you will feel as though everything is going your way.
If you feel that you have gotten off track, then this dream is giving you the message to engineer your way back in the direction of your dreams. This dream may also be giving you the message to move from the wrong side of the tracks to the side that is most supportive of you, and that perhaps it is time to switch your career or relationship track. See Train and Conductor.... Strangest Dream Explanations
Tires on your vehicle represent the emotional qualities you ride on.
A flat tire may arrive as a response to a big emotional issue that deflated you and stopped your progress temporarily.
A flat tire on the right-hand side might reflect trouble related to the masculine side of the personality, which is associated with reason or logic. One on the left side symbolizes that an emotional issue may have wounded your feminine side or intuitive and receptive nature. Back tires relate to emotional issues of the past, and front tires signify more recent issues. Therefore, a flat left rear tire would metaphoncally represent a big emotional issue from the past that affects your intuition.... Ariadne's Book of Dream