4 ms·

Colorado is putting a diverging diamond interchange in near where I live in Boulder county. Work will be finishing soon and I was wondering if any HNers have ha

• nubs 11y ago
  They can be pretty crazy to figure out how to navigate on larger intersections (which have the double diamond plus other intersections in the same area). I can't tell you how many times I've missed my turn and had to take a long way around trying to get through this intersection in Austin: http://www.openstreetmap.org/#map=17/30.23595/-97.82471 http://www.openstreetmap.org/#map=17/30.23595/-97.82471 Edit: On second thought I'm not entirely sure that is a double-diamond, although I've heard people refer to it as one. It doesn't seem to match up with the wikipedia article, however.
• jpmc 11y ago
  Where I live we have 5-6 and they have worked great. The first time through can be interesting. Years later they are just a normal part of the the road. Everything is clearly marked and lanes are painted brightly. The upgraded intersections are very quick to get through now. In the past you could wait six or seven light cycles before getting through. Now you might have one short stop.
• wmeredith 11y ago
  They are all over Missouri. I think the first one in the country was in Springfield, MO (because there is a sign there stating this). They are very confusing the first few times through, but you get used to it.