When preparing OSM data for use in a routing engine, graph topology is typically simplified to reduce network complexity. This compresses detailed ways into single edges, ideally between single-node intersections. However, complex intersections, such as those involving dual carriageways, can result in multiple nodes as well as small, intermediate edges. This talk shares some approaches that Mapbox uses to identify these subsystems and categorize possible maneuvers through them.
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Previous talkA geographical mapping and characterisation of food resources in a Ghanaian university campus
Food environments are viewed as the interface where individuals interact with the wider food system to procure and/or consume food. Data collection was undertaken based on GIS open-source technologies and collaborative mapping...