Micah Brachman is collaborating with researchers from the UMD School of Public Health on the Purple Line Outcomes on Transportation (PLOT) Study. This natural experiment will examine the impact of a new light rail line on active transportation and physical activity for residents of Prince Georges County, Maryland.  A recent publication from this study in the International Journal of Environmental Research and Public Health can be found at the following link: http://www.mdpi.com/1660-4601/15/2/333.