Measuring sidewalk distances using Google Earth
<p>Abstract</p> <p>Background</p> <p>Physical activity is an important determinant of health. Walking is the most common physical activity performed by adults and the presence of sidewalks along roads is a determinant of walking. Geographic information systems (GIS) can...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2012-03-01
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| Series: | BMC Medical Research Methodology |
| Online Access: | http://www.biomedcentral.com/1471-2288/12/39 |