By-right development dipshit, how the fuck are you going to extract proffers (i.e., road improvements) for that?
Aundrey Moore and her cronies came in, down-zoned the County creating the situation you are left with now. They spaced-out development all across the County creating the need for these 6 lane roads everywhere without the means necessary to require the developers to build them. If they had left well-enough alone, the population centers would have continued to grow where people had access to transportation/jobs. But no, they couldn't do that, gotta make sure the County has enough trees....more trees here than when the god damn indians were running around. Typical liberal policies that fuck everything up.
https://www.washingtonpost.com/archive/local/1991/11/09/fairfax-downzoning-upheld-posing-challenge-for-davis/3d0b1347-11d6-4140-ad98-7a4b1dddc99d/