Broomstick wrote:
The trend throughout human history has been for fewer and fewer people to grow their own food, why would extreme urbanization change that? I would expect the exact opposite (with a few continuing to garden as a hobby). Do you expect everyone in the future to have an "hydroponic pod" attached to their apartment and grow a significant portion of their own food? Nonsense - the "vertical farms" are factory farms, they're industrial agriculture.
If anything rural area populations have dropped due to mechanization of agriculture as far fewer people are needed even for "ground farms".
I'm agreeing with you. What I meant is that because of that trend, zones that maintain more separate land for each dwelling unit by restricting density do not contribute to agricultural use, and that allowing higher density would free up more land for the kind of agriculture that is actually done on a significant scale. I don't really think everyone will have their own little hydroponic pond attached to their condo or apartment, as much as I like the idea.
You may reduce some of the travel involved, but raw farm products will still need to be shipped to central locations for processing then redistributed. People aren't going to start grinding their own flour.
That's true. Perhaps the total travel involved in distribution would not decrease all that drastically. I was also tacitly assuming that cities would make more abundant use of immediately available agricultural land and resources, as well as emphasizing more local processing and distribution over long distance import/export, as part of the move towards greater sustainability. Those are of course, separate issues from mere density and zoning. Of course climate is a limiting factor, and here water is a more stringent limitation than land, so again, simply increasing the density may not be that much of a benefit to agriculture. I am also just reacting aesthetically to seeing the desert carved up so wantonly with paving for benefits that seem less than what we should be getting from the investment.
A mile walk extreme? WTF?
People used to routinely walk multiple miles to work, to shop, and otherwise conduct the business of life. It is only the late 20th Century and later that has seen people whine that a mile is too far to walk. Removal of sidewalks and the building of streets with high-speed traffic and more than two lanes each way did more to kill walkability than distances of a mile, or even more.
True. But they are not going to walk multiple miles if cars are a more convenient option, especially with the modern expectation of living on a tight time schedule with less time alotted to transit unless you are traveling commuter distances. A mile walk is nothing to me, but there are a lot of people who find it foreign and threatening, more from sheer force of habit and cultural inertia than anything else. Its a cultural artifact that will have to be changed, but it probably won't change until active design steps are taken to encourage walkability. There are plenty of sidewalks here, but nobody wants to be walking on eight feet of unshaded concrete along a hundred-foot-wide street in hundred-plus-degree weather with no little shop fronts or other pleasant things immediately within reach along the way. The extreme setbacks required by zoning laws here are mostly oriented towards automobile visibility rather than pedestrian walkability. Though Lancaster Boulevard itself is a lovely street with trees down both sides that are lit at night year round with little christmas lights spiraled around the trunks, and nobody walks along it. Most likely it's the sheer absence of any uses that cater to leisure and nightlife along it that make it unappealing, as well as it's reputation as a dangerous hangout for homeless and druggies. Once again, the city has taken steps to remedy that, but not until the real-estate crash slowed development to a crawl, so we have yet to see significant results.
As for the distances involved, higher densities would mean more people per unit area available to support a higher concentration of (hopefully) varied services, so that there would be a higher probability of any particular need being met within walking distance. Otherwise, with fewer uses located within each block, instead of one mile each way, you are looking at five miles one way to take care of things that people would be willing to make a one mile trip for, and they won't do it if they can use an automobile. It would make a more attractive situation for business owners to set up shop with expectations of more potential customers if there were more of them living adjacent to the site. Also, if expectations of automobile usage decreased, city regulations may reduce the parking requirements for many uses, freeing up more lot area to be used for a building or whatever the owner wants to put up on the site. Traffic analysis shows that parking lots here in downtown are rarely used at more than 40% capacity as is, so setting aside so much land for parking is just a waste of resources and a burden on small business owners. We could pare away some of that land and reallocate it to higher density housing without putting undue strain on the existing infrastructure.
I realize I've gone off on a bit of a tangent here, and what I've said is largely based on limited experience of southern California, but the basic point is that urban contraction to a density that is still far below most large cities would enable significantly more efficient resource utilization and facilitate socializing for citizens of many small cities without putting any severe strain on available technologies. It would only be a net gain for agriculture as conventionally practiced by freeing up resources. So this whole written effluent is merely in response to the statement that higher densities are incompatible with agriculture.
Every day is victory.
No victory is forever.