Very impressive simulation! For others unfamiliar with the term "lane sweeping", it means crossing/changing a lane during a turn. You must turn into the lane closest to you. https://cherinlawfirm.com/2018/01/what-is-lane-sweeping-and-...
(It's scary thinking a half-mile traffic jam starts at 4am... and I can't help but wonder what it looks like at more sane hours such as 8:30am or 5:15pm. Is everything just red for miles around?)