DISCLAIMER!! I am not a transportation planner and do not visit this topic very often, if this has previously been shared I apologize. This link was sent to me and as one who like experiments and hates traffic congestion would love to try it in the city square where I work.
Would this work in your jurisdiction? Would your respective state transportation department or bureau approve or have heartache?
In the Atlanta area the Georgia Department of Transportation is installing traffic lights on several interstate on-ramps as an attempt to curb (no pun intended) the amount of congestion on the interstates. The idea is to only allow a few cars to enter the flow of traffic at timed intervals during peak traffic times. If an experiment such as that in the video is completed state side and provides similar results the GDOT may have wasted a lot of money.
Of course I know the same impact would not be felt on the interstate as this busy intersection because the direction of travel along the interstate is the same; whereas in the video the breaks in travel to allow for cross traffic is what reduces the congestion. Thus keeping the cars moving.