Three reasons we don’t understand traffic
Today we have a guest blog post from the theoretical physicist over at Gravity and Levity. Please show him some love with some comments!
Being stuck in traffic is frustrating in a way that few other things are. Something about the helplessness of it makes us extremely irritable, and we become inclined to think that the people around us are idiots. The guy who just cut you off, the lady talking on her cell phone with her blinker left on, the construction workers standing around and looking at a hole in the ground instead of actually fixing the road. Everyone seems incompetent and unintelligent when you’re stuck in traffic.
Not uncommonly, this line of thinking extends to the people that decided how and where to build the roads. Their (lack of) planning can seem like pure idiocy, and the solution for fixing the terrible gridlock can seem painfully obvious.
I understand this type of thinking all too well. My very first job was in the heart of Washington DC, which meant that I spent about an hour and a half stuck in traffic every day. And during that time I thought about traffic, how terrible it was, and how it should be a solved problem by now. It seemed to me that after decades of intense mathematical research and super-powered computer simulations we should understand traffic. After all, we know where people live, where they work, and when they work. Why can’t we “solve” for the most efficient pattern of roads and intersections? Why do the world’s most modern cities still suffer from terrible gridlock?
During the eight years since then, I have thought off and on about traffic from a scientific perspective. And the more I think/read/hear about it, the more difficult it seems to understand. In this post, I’ll give a few reasons for our continued inability to “figure out” traffic patterns.




