Stop, Ampeltime!

Stop, Ampeltime! is a novel, puzzle-like approach to transportation games that takes the challenges of creating a functioning and efficient traffic infrastructure to a small, dense scale. It’s a very playful approach to tackling real-world challenges, combining a realistic traffic simulation and a charming level of detail with the freedom to play and experiment with the flow of traffic.

Source: http://www.stopampeltime.ch/aboutgame/