A street name you notice in a dream is read as a pointer to a place, a time or a person it brings to mind. An unreadable or changing name speaks of not quite knowing where you stand.
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.