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&#x27;t tell you how many times I&#x27;ve missed my turn and had to take a long way around trying to get through this intersection in Austin: <a href="http:&#x2F;&#x2F;www.openstreetmap.org&#x2F;#map=17&#x2F;30.23595&#x2F;-97.82471" rel="nofollow">http:&#x2F;&#x2F;www.openstreetmap.org&#x2F;#map=17&#x2F;30.23595&#x2F;-97.82471</a><p>Edit: On second thought I&#x27;m not entirely sure that is a double-diamond, although I&#x27;ve heard people refer to it as one.  It doesn&#x27;t seem to match up with the wikipedia article, however.