As a counterpoint to the comments about how very dense cities are unlivable, I'd like to offer the example of Paris. I think many people will agree that it's a really nice first-world city, with great culture, transportation, no sanitation troubles, etc (as opposed to Dhaka, which many take issue with).
Well, that's a city with 55000 per square mile inside city limits. Some of the suburbs (the richer ones, mind you) even have up to 65-69000 per sqmi. Dhaka has about 50000. Of course, a lot of suburbs are less dense than this, but those tend to be the impoverished & forsaken ones you definitely don't want to live in.
High density does not necessarily mean Manhattan or Hong Kong, in fact, closely built, dual use 7-story buildings with offices & shops & restaurants on the ground floor are a more balanced and less costly way to achieve it. And it offers a real opportunity to finally get rid of the cars, something that will be impossible to achieve in low-density cities because those could not support decent public transportation.
Well, that's a city with 55000 per square mile inside city limits. Some of the suburbs (the richer ones, mind you) even have up to 65-69000 per sqmi. Dhaka has about 50000. Of course, a lot of suburbs are less dense than this, but those tend to be the impoverished & forsaken ones you definitely don't want to live in.
High density does not necessarily mean Manhattan or Hong Kong, in fact, closely built, dual use 7-story buildings with offices & shops & restaurants on the ground floor are a more balanced and less costly way to achieve it. And it offers a real opportunity to finally get rid of the cars, something that will be impossible to achieve in low-density cities because those could not support decent public transportation.