I'm sad to see that I'm the only one that thinks that congestion has gotten worse due to the abundantly clear lack of thought in traffic engineering. I think there might be two scenarios that potentially account for this: 1) I learned about the idea of planning less capacity than is required to "force people's hands" on using public transit. Idealistically, it sounds great. Like most idealistic plans, the real world doesn't work that way and it just pisses people off and, viola, traffic congestion. 2) I don't feel like traffic engineering is keeping-up with our technology. At least in my area (and in many to which I travel), I see no efforts being made to use the technology we have to better improve traffic. Instead of having connected, intercommunicating and load-sensing intersections, we still have a lot of unconnected, unaware intersections that induce a lot of the congestion problems.