Parks in NYC and physical activity sites in Watson Gleason Playground, Bronx, NY. This example demonstrates that the physical activity sites in a relatively small park are not homogeneously distributed within the park, and this tends to be even more pronounced in larger parks, therefore affecting accessibility. Data Sources: NYC Dept. of Parks and Recreation collaboration with Lehman College "Geographic Features Identification Project," 2006; Orthophoto: NYCMap NYC Dept. of Information Technology and Telecommunications, 2002.