A level crossing stands for the meeting point of two paths where one must give way. Dream books read the lowered barrier as waiting your turn, and the crossing itself as timing and caution.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.