| > Manhattan has twice the people with half the land area, on an island. Manhattan has twice the residents based on U.S. Census population data, but actual daytime population is more than just residents. A more important statistic is commuter-adjusted population [1], i.e. number of people in an area during normal business hours, including workers. That's where Manhattan and San Francisco really diverge. The commuter-adjusted population of Manhattan is 3.1 M [2], compared to 1.6 M residents [3]. San Francisco has a commuter-adjusted population of 1.0 M [4, 5], compared to 0.8 M residents [5]. In other words, Manhattan's population booms almost 200% during normal business hours, while San Francisco's increases a modest 25%. Manhattan may have 2x more residents, but it has 3x more daytime population than San Francisco. Given it has about half the land area, Manhattan's daytime population density is thus 6x that of San Francisco. Attitudes on development -- namely transportation infrastructure and building construction -- certainly contribute to that difference. 1. http://www.census.gov/hhes/commuting/data/daytimepop.html 2. http://www.citylab.com/commute/2013/05/most-important-popula... 3. http://quickfacts.census.gov/qfd/states/36/36061.html 4. http://ww2.kqed.org/lowdown/2014/01/10/how-city-populations-... 5. http://factfinder.census.gov/faces/tableservices/jsf/pages/p... |
No other place in the country has the kind of network effect that NYC does. It is entirely due to density and density is a direct result of NYC's subway system. As much as New Yorkers love to complain about the subway, and believe me it's a sport out here, we would not be able to accommodate the masses we accommodate without it. Transportation and, of course, vertical space is the way we do it. I really don't know why this is such a mystery to so many not from here. It's kind of glaringly obvious to the most casual of observers.
San Franciscans need to stop navel gazing and look up to the sky. Go up, my friends, go up.