Interesting Fact of the Day: We Walk Slower Now

"For years, traffic lights nationwide were timed to the stride of the average pedestrian, who covered 4 feet of ground per second, according to federal research carried out in the 1950s. A couple of years ago, however, the Federal Highway Administration urged traffic engineers to recalibrate to an average stride of 3.5 feet per second, after new research showed that Americans' average walking pace had slowed over the decades. That would give elderly walkers more time to cross safely."

~Wall Street Journal