The upcoming April 13 – 14, 2015 conference, "Moving Active Transportation to Higher Ground: Opportunities for Accelerating the Assessment of Health Impacts" will focus on the evidence base as well as discussion of key tools and metrics for active transportation.  The conference, jointly sponsored and organized by ACSM and the Transportation Research Board of the National Academies of Science, will bring together experts and constituents from transportation, urban planning, public health health care, and health economics to explore the states of the art and practice on quantifying the public health outcomes of active transportation.