Can we use OpenStreetMap POIs for the Evaluation of Urban Accessibility?

Thursday Sep 29   03:30 PM to 05:30 PM (2 hours)
Urban PlanningAccessibilityOpenStreetMapScarce DataGlobal South
High accessibility, measured in terms of easy and fast to reach public and private services, such as schools, parks and shops, is considered an important indicator for quality of life. We develop a web platform that measures urban accessibility for urban transportation planning purposes. Several of the cities we like to study are in Chile where data on urban services is scarce. We evaluated if the OpenStreetMap (OSM) database can be used as a source for Points of Interest (POI) to evaluate accessibility. Based on a field survey in Santiago de Chile, we found that completeness of the POI database is geographical very uneven (7% - 73%) and therefore walkability scores change drastically if the database is completed. However, some districts scores do not change after POI additions. Given the lack of alternative data sources we recommend using OSM, but suggest evaluating completeness for low scoring urban districts.
Pont. Universidad Catolica de Chile

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