My husband works as an engineer for a prominent traffic engineering firm in Loveland, Colorado. He has seen traffic studies get thrown into politics time and time again. After seeing the scandal over the George Washington Bridge, his question was "what was the traffic study supposed to be figuring out by closing lanes on the bridge?" Any traffic engineer could tell you that the problems that occurred by shutting down the lanes could have been predicted by doing a capacity analysis on the road. There are algorithms and equations based on the amount of traffic that could have told anyone who was looking, that closing down the lanes would have resulted in exactly what happened. Chaos. Blaming this debacle on a traffic study was a very thin veil that should have been recognized as soon as it happened had it not been covered up by the thugs at the Port Authority. If there are any questions for an actual traffic engineer that sees his firm's studies utilized in politics please contact Michael Delich. He works for the firm Delich Associates and can explain what the purpose of traffic studies are.