Tennessee saw a gradual increase in pedestrian fatalities from 67 in 2013 to 97 in 2016, according to the National Highway Traffic Safety Administration. But it’s difficult to pinpoint a reason for the gradual uptick in fatalities, said Chris Cherry, a UT professor of civil engineering. He teaches design for biking and pedestrian lanes and researches effective safety investments.

“There’s a lot of people trying to crack this puzzle, and unfortunately, there’s not enough data to definitively identify a smoking gun,” he said.

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