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Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street
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Modeling spatial accessibility to parks: a national study.

Xingyou Zhang1, Hua Lu, James B Holt

  • 1Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA. gyx8@cdc.gov

International Journal of Health Geographics
|May 11, 2011
PubMed
Summary
This summary is machine-generated.

A new population-weighted distance (PWD) measure accurately quantifies park access. This reveals significant disparities in park accessibility across US states, highlighting the need for equitable park distribution.

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Area of Science:

  • Environmental Health
  • Urban Planning
  • Geographic Information Systems

Background:

  • Parks are crucial for physical activity and leisure.
  • Park access is influenced by spatial configuration and distribution.
  • Existing measures of park access can be improved.

Purpose of the Study:

  • To introduce a novel spatial access measure: population-weighted distance (PWD) to parks.
  • To quantify residential population's potential spatial access to parks more accurately.
  • To evaluate spatial equity in park access across the US.

Main Methods:

  • Developed the population-weighted distance (PWD) measure using US park and population data at the block level.
  • Aggregated PWD data to census tract, county, state, and national levels.
  • Incorporated information processing theory and probability access surface model.

Main Results:

  • Average US residential travel distance to local parks is 6.7 miles.
  • Significant state-level variations in PWD exist; DC and CT show best access (0.6 and 1.8 miles).
  • Alaska, Montana, and Wyoming have the largest PWDs (62.0, 37.4, 32.8 miles); rural western/Midwestern states have lower access than urban states.

Conclusions:

  • PWD offers a consistent method for assessing spatial equity in park access.
  • This tool can inform health professionals and policymakers on park accessibility.
  • The PWD method is adaptable for evaluating access to other essential services.