[ethanbond]

This type of zoning (Euclidian; zoned by purpose) was very new and only tested in SCOTUS in 1926, suspiciously 18 years after the Model T was introduced. I don’t know if the US pioneered it but it doesn’t seem to have taken hold in Europe til recently too.

I’d suspect very old (pre-car) and historically-preserved parts of Chicago, like Boston, DC, and New York, have a much less Euclidian setup.