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Measuring sidewalk distances using Google Earth
BACKGROUND: 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 be used to measure sidewalks; however, GIS sidewalk da...
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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BioMed Central
2012
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3359219/ https://www.ncbi.nlm.nih.gov/pubmed/22458340 http://dx.doi.org/10.1186/1471-2288-12-39 |