Simple but fun entry. I really liked the idea of a cycling state incremental, it's a pretty rare concept for the genre. Each light has it's own flavor of incremental gameplay and it matches the theme of the traffic color. I could see this going pretty far with a touch of synergy across the colors to really bind the states together rather than be 3 minigames. Of course, it's a time limited jam so what you have works just fine. Good job and a unique take on the theme :)