If you focus in either of the top corners of the video frame, it's pretty clear that the traffic moving from left to right on the elevated highway is going into the District of Columbia and while you can really only see trucks and larger vehicles, it's also clear that the well-spaced traffic is moving along quickly, probably at or about the speed limit of 55 miles per hour.
The first video is 18 seconds long, if you have ADHD, and you'll get the point, but the longer video of 4:20 minutes gives some "scatter."
This traffic is either on the Shirley Highway or I-395, but both going into the District over two bridges during rush hour. The record is so replete with stories of traffic stuck at a standstill, or moving very slowly, that it's kind of fun to see it flying by.
When will we ever learn? Everything is a lie!