  This chapter introduces OpenStreetMap - a crowd-sourced, worldwide mapping
project and geospatial data repository - to illustrate its usefulness in
quickly and easily analyzing and visualizing planning and design outcomes in
the built environment. It demonstrates the OSMnx toolkit for automatically
downloading, modeling, analyzing, and visualizing spatial big data from
OpenStreetMap. We explore patterns and configurations in street networks and
buildings around the world computationally through visualization methods -
including figure-ground diagrams and polar histograms - that help compress
urban complexity into comprehensible artifacts that reflect the human
experience of the built environment. Ubiquitous urban data and computation can
open up new urban form analyses from both quantitative and qualitative
perspectives.
