This paper has 7 explicit examples of the universality phenomenon, including the bus scheduling. http://arxiv.org/abs/math-ph/0603038 http://arxiv.org/abs/math

This paper has 7 explicit examples of the universality phenomenon, including the bus scheduling. http://arxiv.org/abs/math-ph/0603038 http://arxiv.org/abs/math-ph/0603038 It's moderately technical, but really interesting.