Indicator PI.7.d Proportion of land zoned for commercial and residential uses
Data Source
Zoning data updated by SF Planning Department, September 2008.
Map and table prepared by City and County of San Francisco, Department of Public Health, Environmental Health Section using ArcGIS software.
Map and table data are presented by planning neighborhood. Detailed information regarding geographic units of analysis, their definitions, and their boundaries can be found in the HDMT at the following links:
http://www.thehdmt.org/etc/Geographic_Units_of_Analysis.pdf
http://www.thehdmt.org/data_map_methods.php
Explanation and Limitations
The map above shows the location of commercial and residential zoned land in San Francisco. By showing both land uses on one map, the goal is to illustrate the proximity of commercial services for residents and their ability to access daily needs. The table provides the proportion of land area in a neighborhood dedicated to commercial and residential uses.
To view specific neighborhood pubic and retail services in San Francisco go to the following indicator pages:
PI.7.a. Neighborhood completeness indicator for key public services
PI.7.b. Neighborhood completeness indicator for key retail services
Why is this a Community Health Indicator?
Research has found that neighborhoods with diverse and mixed land uses can create proximity between residences, employment, and goods and services, reducing vehicle trips and miles traveled and increasing active transportation such as walking and biking.aIn addition, a 12.2% reduction in odds of being obese was detected with increase in density, mixed use, and street connectivity within 1 km of residential area, i.e., living in a mixed use area with a variety of shops and services is a robust predictor of obesity in urban areas.b Finally, retail development in the context of mixed-use design generates natural public surveillance. Crime reduction and surveillance improves levels of perceived safety.c
Ewing R, Frank L, Kreutzer R. Understanding the Relationship between Public Health and the Built Environment: A Report to the LEED-ND Core Committee. 2006.
Frank L, Andresen M, Schmid T. 2004. Obesity relationships with community design, physical activity, and time spent in cars. American Journal of Preventive Medicine 27(2):87-96.
Singapore National Crime Prevention Council. 2003. Crime Prevention Through Environmental Design Guidebook. Available at http://www.ncpc.gov.sg/pdf/CPTED%20Guidebook.pdf.