My proposal is to assign existing streets (centerlines to be precise, since we're ignoring existing widths) to categories in this 5-tier schema:https://twitter.com/380kmh/status/966026690723041281 …
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it happens all the time, but more to the point, isn't necessary to realize immediate benefits from these reforms. if it's really never possible tho, then enjoy permanent car culture and permanently unwalkable cities
I don't think much more frequent iterations of building are a prerequisite for shifting away from cars. After all many buildings in use today predate the widespread adoption of cars!
It's a prerequisite for large-scale changes to the urban fabric and a healthy/sustainable development industry--not for shifting away from cars
basically a necessity to prevent the build environment from freezing the conditions under which it grew up into amber; a necessity for keeping construction roughly in line with changes in demand and technology
I definitely agree that attempts to freeze all neighbourhoods in amber are extremely harmful and ultimately fatal to cities, economies and human flourishing generally. Just noting that it is possible to go too far to the opposite extreme.
possible, yes--but much harder (for the reasons you gave about costs!), whereas it's all too easy to freeze things as they are
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