parks to dedicate more space to uses beyond what a pocket park can offer, such as for large-scale natural habitats. Public health and safety impact Pocket parks can deter the accumulation of unsanitary and potentially biohazardous waste, promoting positive externalities on public health. A study in Los Angeles concluded that pocket parks were more effective than larger existing parks and playgrounds at promoting moderate to vigorous physical activity in low-income neighborhoods. This is likely due to increased pedestrianism, for the short distance between user's homes and pocket parks encourages users to walk to access outdoor public spaces. The creation of pocket parks can improve resident perceptions of public safety. One study from the University of Pennsylvania concluded that converting vacant lots into pocket parks reduces crime rates. In Los Angeles, where there are restrictions on how close registered sex offenders can live to parks, local officials planned three pocket parks to drive "undesirables" from a given area. Around the world Chile In Santiago, Chile, the first pocket park (plaza de bolsillo) was created beside of Palacio La Moneda at Morandé Street. It was an initiative of Architecture Departament of the Ministry of Public Infrastructure and Regional Government of Santiago. Mexico In Mexico City, there is a city program to facilitate the creation of up to 150 pocket parks of 400m2 or less on vacant lots and former road intersections, such as Jardín Edith Sánchez Ramírez and Condesa pocket park. Poland In Krakow, the Municipal Green Areas Management Board launched a 2018 initiative to improve the quality of public space and the quantity of green space by creating eighteen new pocket parks, which were modeled after the successes of New York City's Paley Park and Philadelphia's John F. Collins Park. United Kingdom In England, a 1984 project to involve the local community in the creation and running of small, local parks has fostered several pocket parks in Northamptonshire, and was later developed by the Countryside Commission into the Millennium Green and Doorstep Green projects. Gallery See also Parklet Urban green space References Parks Urban planning Urban public parks Urban studies and planning terminology