Greater Philadelphia is a region blessed with a variety of opportunities to create a connected network of multi-use trails, including both right-of-ways (ROWs) inherited from the area's long history as a hub of railroad activity and greenway corridors that follow the region's creek buffering and park systems. Some of these opportunities have been capitalized upon—a number of significant trail segments already exist or are currently moving toward construction—but "gaps" still exist. In May 2012, DVRPC Board Member Terence Farrell and DVRPC Executive Director Barry Seymour joined Philadelphia Mayor Michael Nutter to celebrate the efforts of foundations, governments, non-profits, economic development professionals, and numerous other groups to fill these gaps and create an interconnected network of multi-use trails called The Circuit.Existing -- These trails are open for use so get out there and explore themIn Progress -- These trails are currently being designed or built.Pipeline -- DVRPC, local governments, and non-profit organizations are actively working to move these trails forward by conducting studies, acquiring rights-of-way, engaging local communities, and laying the groundwork to obtain funding for future design and construction.Planned -- These trails are documented in local, county or regional plans. They represent excellent opportunities for regional-scale, multi-use trails. Studies or plans may have been prepared for these trails, but a sponsor is not actively working to move them forward.