CYCLING - The Idaho Stop
This one surprised me, research that shows it is actually safer for cyclists to slow down and go past a stop sign without stopping instead of coming to a full stop. The US state of Idaho's statute Title 49, Chapter 7 permits it, along with different behaviour at a red light. Cyclists are required to stop and yield, but may proceed on the red if it is safe to do.
In Policies for Pedaling, the City of Chicago is encouraged to permit the "Idaho Stop" for bicycle riders. The idea is examined starting at page 4.
Brandon Whyte's masters project, The Idaho Stop Law and the Severity of Bicycle Crashes: A Comparative Study examined Boise, Idaho and Champaign / Urbana, Illinois. He found that in Illinois there were more serious injury crashes involving cyclists.
The Chicago-Kent Law Review examined the Idaho Stop rule as an incentive to urban cycling.
The Velo-City Global 2012 conference in June, 2012 hosted by Vancouver saw a presentation by Jason Meggs: Stops as Yields, Safety and Effects of the Idaho Stop Law.