More than 112,500 people lost their lives in speed-related crashes from 2005 to 2014, accounting for 31 percent of all traffic deaths in America over that period. In a draft report released earlier this week, the National Transportation Safety Board says excessive speed is a deadly problem in our nation's transportation system -- one that federal and state officials aren't doing enough to address.
There's ample research out there backing up the safety benefits of streets with protected bikeways and slow car speeds. But what about the critically important yet less tangible factor of individual attitudes -- how does the mind of the person behind the wheel affect driver behavior toward cyclists? A new report from Portland State University looks at the question.