Ah that's right, use-based zoning. I still don't see how removing all zoning would de facto make cities easier to get around in, particularly when the US has a long history of private interests working against public mobility projects. The reason Americans are so dependent on cars was largely influenced by big automakers.

I tend to think that the outcome of removing zoning in the US would be very case-by-case. In a desirable urban neighborhood with height restrictions and a historical building commission, it might be possible to add a lot more density and storefronts without zoning. On the other end, I don't think a developer would add a story to a suburban olive garden along a busy road. If anything it might be cheaper to build sprawl without zoning.

> On the other end, I don't think a developer would add a story to a suburban olive garden along a busy road. If anything it might be cheaper to build sprawl without zoning.

I think this is exactly Houston’s situation and why it is such a disaster from a walkability standpoint.