GAC 13

The Chapter 13 is the first chapter of the part three forces of decline and regeneration. In this chapter Jacobs mentioned the self-destruction of diversity can happen in streets, at small nodes of vitality, in groupings of streets, or in whole districts. She states that diversity is inherently required for city life to work in a constructive manner, and provides the basis for the perpetuation of the city. Although the responsibility for public use entities such as schools,parks, community centers and more is to be undertaken by public and "quasi-public" sources. Most outstandingly successful city residential districts have never possessed the four fundamental conditions for generating exuberant diversity int he first place.

Jacobs state the self-destruction of diversity is caused by success,not by failure.The process is a continuation of same economic processes that led to the successitself, and were indispensable to it. It is the problem of getting the supply of vital,diversified city streets and districts into a saner relationship with demand.