The results here are impressive, but the particular example they show in the last picture seems pretty dangerous, unless I'm misunderstanding. It seems like it

The results here are impressive, but the particular example they show in the last picture seems pretty dangerous, unless I'm misunderstanding. It seems like it places left-turning car traffic to the right of cyclist through-traffic, creating an opportunity for "left-hooks." Many jurisdictions use mixing zones instead: http://www.streetsblog.org/wp-content/uploads/2013/03/dc_mixing_zone.jpg http://www.streetsblog.org/wp-content/uploads/2013/03/dc_mix... (Unless there's a separate signal phase for the cyclist through-traffic, which is possible, but not that common in the US.)