Return to Fast Fact Library

An analysis of the impact of greening 4,436 vacant lots in Philadelphia from 1999 to 2008 found that vacant lot greening was associated with residents' reporting significantly less stress and more exercise in select sections of the city. Because newly greened vacant lots may serve as safe havens, residents may have felt less stress or may have seen greater outdoor opportunities for exercise in a cleaner, more attractive, and safer environment.

Branas, Charles C., Rose A. Cheney, John M. Macdonald, Vicky W. Tam, Tara D. Jackson, and Thomas R. Ten Have. “A Difference-in-Differences Analysis of Health, Safety, and Greening Vacant Urban Space.” American Journal of Epidemiology 174, no. 11 (November 2011): 1296–1306.



Health & well-being

The LPS Fast Fact Library is a collection of short summaries of landscape benefits derived from published research. The Landscape Architecture Foundation (LAF) compiles and writes the Fast Facts. LAF has no involvement in the data collection, analysis, review, publication, or funding of the research. If you have questions or comments on the Fast Fact Library itself, contact us at email hidden; JavaScript is required.

Help build the LPS: Find out how to submit a case study and other ways to contribute.