Extracting data from OpenStreetMap (OSM), Street Supply Tool allows users to select arbitrary polygons (cities, towns, etc.), and returns the aggregated values of various road hierarchies.
Understanding road network length by type within a given area gives us a metric to understand street supply. We can begin to quantify and compare how much of a region is made up of different types of roads. Some roads have good associations for sustainable mobility (transit lanes 🚇 🚌 🚲); other road types have poor associations for sustainable mobility (highways 🚗).
By being able to classify the number of different types of roads in a variety of areas, we can compare road supply type in different cities.