Please excuse the sensationalism, but has anyone seen this recent article or the associated study? Interesting data, for sure.

http://www.bikede.org/2015/08/29/share-the-road-is-a-problem/

Here's the NCSU report:
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0136973

Best,
Drew