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Figure 2 | BMC Medical Research Methodology

Figure 2

From: Measuring sidewalk distances using Google Earth

Figure 2

Overview of the GIS sidewalk measures for a 1 km radius circular buffer testing site. The top left panel shows the 1 km circular buffer testing site, and all of the road segments are highlighted with the green lines. The top right panel shows the same 1 km circular buffer testing as in the top left panel; however, only the road segments that have a sidewalk are highlighted with the green lines. The bottom left and bottom right panels of the figure show a blow-up of a section of the 1 km circular buffer testing site. All road segments (bottom left panel) and those road segments with sidewalks (bottom right panel) are highlighted with the green lines.

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BMC Medical Research Methodology

ISSN: 1471-2288

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