The 200,000 is a "summary" at best. The traffic counts are measured between intersections. Some are higher, some are lower, and some people could be getting o

The 200,000 is a "summary" at best. The traffic counts are measured between intersections. Some are higher, some are lower, and some people could be getting off before the next intersection, etc. I'm not exactly sure how the traffic counts work - if they are just the on and off ramps, then the highway itself carries a hell of a lot more cars than 200,000.