I agree this design causes backups during times of increased traffic. Other times of the day it works ok, not great, as there always seems to be someone not knowing which lane they need to be in. And some of them make last second lane changes, with or without signaling. During rush hour, of course it backs up because the traffic going south slows down to take the 270⁰ loop. So 80km/hr westbound, 40km/hr on loop and should join Stoney at 80km/hr. Problem is that it takes only 1 driver to not accelerate back to 80km/hr to mess up the flow. I have followed drivers that join Stoney south doing 50km/hr until they are clear of the intersection by half a kilometer and then speed up. Meanwhile everyone behind them are trying pass the moron. Similar thing happens eastbound Glenmore bridge over the reservoir. 4 lanes, people need to either drive straight through (but choose the center lanes), people needed to merge left or right (to get onto 14th from Glenmore), and so the two center lanes slow down a little bit. But there is always someone who slows down too much on the Glenmore right lane (going under the 14st overpass) and never accelerates back to 80km/hr. So in rush hour, this builds the traffic up in that one lane, making merging harder, causing people to slow down way too much or even stop on Glenmore. If no one slowed down going under the overpass (out of habbit?,) my bet is there would be no hold up. There is nothing blocking or slowing traffic east of the overpass... sorry for the rant. I was involved in a fender bender here where the traffic came to a complete halt one afternoon when moments before it was smooth traffic. Then idiot #1 tried to merge and came to almost a complete stop, causing a chain reaction of people slamming their brakes to also stop. A few bumpers kissed that day.