alt Hacker NewsThe basic failure mode I would expect:
https://www.youtube.com/watch?v=DeFY9u69tkE
The adjoining roads have a large speed differential. The runoff areas around this project do not appear as if designed with this in mind. I predict a few horrible accidents and some hamfisted redesigns.
The local news has a ground level view of this project:
Your first link is hilarious. 1:38 features a tow truck wiping out. You'd think he'd seen enough people get in trouble to make him drive better!