The roadmap in dreams represents the questions you have while dealing with your life. The roadmap that is clearly understood and you are following towards your direction, means that you chose the right way to live your life. The roadmap that is very hardtop understand and you have no idea how to read it, means that you are confused in your waking life. You have too many questions and have no idea how to get the answers to it.
Read more about dreaming of Roadmap in other dream meanings interpretations.