[ColinWright]

"New" ?? This was discussed 410 days ago:: http://news.ycombinator.com/item?id=1437430

Also just recently re-submitted: http://news.ycombinator.com/item?id=2833446

In particular, here's the WikiPedia article about the design: http://en.wikipedia.org/wiki/Diverging_diamond_interchange

[gojomo]

New to most people; I haven't driven through one yet. And on the timescales of road engineering, pretty much anything novel in the past 20 years that's not yet widespread is still 'new'.

[Semiapies]

Also, the "new" is in the headline.