"Suppose we continue with building, and with deliberate rebuilding, of unsafe cities. How do we live with this insecurity? From the evidence thus far, there seem to be three modes of living with it; maybe in time others will be invented, but I suspect these three will simply be further developed, if that is the word for it.
The first mode is to let danger hold sway, and let those unfortunate enough to be stuck with it take the consequences. This is the policy now followed with respect to low-income housing projects, and to many middle-income housing projects.
The second mode is to take refuge in vehicles. This is a technique practiced in the big wild-animal reservations of Africa, where tourists are warned to leave their cars under no circumstances until they reach a lodge. It is also the technique practiced in Los Angeles. Surprised visitors to that city are forever recounting how the police of Beverly Hills stopped them, making them prove their reasons for being afoot, and warned them of the danger. This technique of public safety does not seem to work too effectively yet in Los Angeles, as the crime rate shows, but in time it may. And think what the crime figures might be if more people without metal shells were helpless upon the vast, blind-eyed reservation of Los Angeles."
— Jane Jacobs, The Death and Life of Great American Cities (Vintage Books, 1961). This book should be required reading for every person who lives, has ever lived, or ever plans to live in a city. I try to read it every time I move. Do yourself a favor and buy it now.