This week the CoMo Explained team tries to answer why there are so many roundabouts in Columbia compared to other cities:
Yes, it's a rebroadcast. I feel awful about it. But look at this, we've been doing this show for 25 straight, brand-new, original episodes! There's lots and lots of good stuff in the archives, most of which feels pretty fresh, so you should check it out.
Also: have you seen the new intersection at Stadium and I-70? It's pretty nuts. We include a little bonus at the beginning of this episode explaining "Diverging Diamond" intersections, why the city of Columbia created one and how to use them. This weird video also helps:
http://www.youtube.com/watch?v=Ox_AnZS-UXU