A couple of interesting articles about bike lanes and their affect on traffic congestion (or as is demonstrated in these articles, the lack thereof.
First there is:
Bike Lanes Don’t Cause Traffic Jams If You’re Smart About Where You Build Them by Gretchen Johnson and Aaron Johnson, FiveThirtyEight.com
Then there’s this response to the Johnson & Johnson piece:
Bike Lanes Don’t Lead to Congestion, But Some of Them Should
by Angie Schmitt, StreetsBlog, USA