I think the only rule they had when “planning” Dallas was “there are no rules”. Zero zoning rules means one giant skyscraper in the middle of a mile of strip malls, multiple city “centers”, vast areas of it are competely unwalkable due to lack of sidewalks and/or what are basically highways running through them, and no mass transit to speak of. It’s like they took 5 shitty, small cities and glued them together with more shitty city material.