Maybe you're not a very good driver?
I've survived D.C. area roads and highways for over 50 years without harm or damage, and am almost certainly a better driver than you or anybody you know.
As to building a jail big enough for everybody who ever goes over a white line... You'd have to make it big enough for every truck driver in the world, big enough for the entire populations of all European countries south of Germany, all 20,000,000 illegal immigrants, and pretty much everybody who drives on the D.C. beltway between Springfield and Tysons on any sort of regular basis.
This jogger in all likelihood was running with his back to traffic one or two feet from the edge of the road and the DA is looking to be the next Mike Nifong or Martha Coakley as I mentioned.