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. 2017 Feb 16;16:6. doi: 10.1186/s12942-017-0079-7

Fig. 3.

Fig. 3

Schematic map of five residential zoning types used to determine audit locations illustrated with an example neighborhood within the study region. Building footprints illustrate relative residential housing density. The example Street View Panoramas (© 2016 Google) from these zones illustrate typical property types. Zone RM (mobile home) is not included because of its rarity over the entire study area