![]() ![]() The second one does the same for 25 cities around the world.Īs the first graph shows, many American cities have street grids that are almost perfectly aligned north-south and east-west. The first batch shows the ‘cardinality’ of 25 U.S. polar histograms) are the work of Geoff Boeing, a post-doctoral student of urban planning at UC Berkeley. Complex diagrams equal ‘messy’ street grids, making it harder to find your way. Simple diagrams reflect straightforward grids that make navigation easy. They show how closely street layouts in selected cities align to the four cardinal directions. How easy are cities to get around? These rose diagrams have the answer.
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