This is great, saw it over on Copenhagenize today. Basically a mighty (yet accessible) barrage of international research bits backing up the virtues of bike lanes and cycletracks. Hope it trickles down to all the dark, musty places where the idea somehow still lurks that somehow bike lanes - especially protected lanes - are somehow a bad idea or not worth the investment.
Someone in DC might want to pass this along to new DDOT Director Terry Bellamy.
Much of the rest of the world including quite a bunch of (presumably) smart people seem to have come to the conclusion cycle lanes and cycle tracks are very much worth every penny.