The New York University Stern Urbanization Project is putting together visualizations showing the expansion of cities over the last 200 years. The animations were created using information from The Atlas of Urban Expansion.
It’s really interesting how each of the three cities in the video’s below grows differently. Sao Paulo really explodes, like a mushroom from a solid core. Meanwhile, Los Angeles it’s easy to see how larger scattered settlements joined, reflecting that cities weaker core and stronger sub-city centres.