The Metropolitan Area embraced the "Spoke and Wheel" effort after WW2 and unfortunately Virginia did their own thing. Its now a cobweb in NOVA which is why places like 66 continues to be a parking lot. Nice article in 2009 predicting the next 50 years and NOVA will continue to be a mess.
http://www.washingtonpost.com/wp-dyn/content/article/2009/09/03/AR2009090304103.html