Here's a video that explains on a basic level what's wrong with cloverleafs:
And here's is Alberta's favourite interchange design now, the six-ramp parclo - in this case Stoney/Peigan in the SE. The new hip and cool thing to do for 2020 is to make those intersections on the surface street into roundabouts, so people stop T-boning each other - which is what is currently being built at Stoney/14 St NW if anyone lives up there.
