Rather then the government lead (and miss) why not have the government act more as an even-distributor of things which are already gaining traction.
Years ago during Japan's go-go years, they have renderings and future plans for completely redesigned megacities made up of multiple semi-self-contained smaller hyper integrated neighborhoods --sometimes a neighborhood would be gigantic pyramidal buildings of capable of being self-sustaining in terms of labor, housing, recreation, food production, etc. but then the economy tanked and pop growth flatlined and we have relative slow decline and forgotten are those grand dreams of the future.