Assessing the Accuracy and Completeness of OpenStreetMap Sidewalks: A Comparative Study With Google Street View

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Figure 1. Point-level agreement between Google Street View and OpenStreetMap. Green cells indicate concordant pairs; yellow cells indicate discordant pairs, denoting inaccuracy in OpenStreetMap; red cells indicate discordant pairs, denoting incompleteness in OpenStreetMap; and gray cells indicate that data were not available in Google Street View. Only the points in “Google Street View: Both sides” and “Google Street View: 1 side” were used in logistic mixed models.

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The map shows Baltimore, Maryland, and parts of Maryland just outside Washington, DC, depicting census tracts that have and do not have sidewalks as well as areas with no Google Street View images. The maps show the percentage of OpenStreetMap–Google Street View agreement.

Figure 2. Agreement in presence of sidewalks between OpenStreetMap and Google Street View for randomly selected census tracts, categorized by Jenks natural breaks, in Maryland.

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