Pedestrian and cyclist traffic fatalities in the US increased by an estimated 10% from 2014 to 2015 according to a new report. This is the largest single-year increase on record. While more vehicles on the road has contributed to overall traffic fatalities, the rate of fatalities per mile driven also increased 8%, suggesting other contributing factors. As more people walk and cycle for transportation and exercise, the number of pedestrians and cyclists on the road has risen, which experts believe has contributed to the increase in fatalities. Several initiatives have been launched to improve safety, including road design changes, enforcement of traffic laws, and education programs.