An empty street is read as solitude in the middle of a busy world. It can feel lonely or peaceful, and dream books take that feeling as the real message.
When this appeared in your dream, what were you feeling?
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.