Left Turns

Vocal users of the wildly popular navigation app Waze have pushed the company's developers to look for a solution to its routing algorithm's tendency to send drivers turning left through crowded intersections.
Sep 25, 2015   The Atlantic
After breaking down the reasons why left turns are so dangerous, it's also obvious how difficult a problem they are to solve.
May 13, 2015   WNYC
Following the idea that pedestrian safety takes its cues from planners, Rachel Dovey's article on pedestrian safety lists six intersection designs that "actually prioritize pedestrians."
Oct 20, 2014   Next City
The FHWA says that 40% of all traffic accidents happen at intersections, and many of those are caused by left turns. A new type of intersection called the "diverging diamond" takes left turns out of the picture.
Oct 12, 2011   Slate