It is now possible to examine the interpretations of the situations in which the cities find themselves, now we can propose solutions. Say no to plagiarism. Get a tailor-made essay on “Why violent video games should not be banned”?Get an original essayAmong those who are politically and administratively responsible, there is a tendency to interpret the facts from the outset in light of possible instruments of control. However, when it comes to sociological contribution, analysis and possible solutions to problems, a broader view is necessary. We must face the consequences of demographic development, in a complex interdependent context which excludes calming responses. Population losses and vacant housing cause significant socio-spatial restructuring between cities or regions, but more dramatically within large cities. Since the mid-1990s, we have observed an intensification of processes of segregation and social polarization. In low-income areas, social segregation due to social transfers continues with departures and job vacancies; new types of poor neighborhoods are created and real estate becomes less profitable. Added to this, in certain areas, are the effects of selective mobility (distance from high-income households). This is reflected in the fact that poverty is becoming more and more visible in public places and social conflicts between culturally different groups of residents are increasing. This at least results in an increased likelihood that segregation processes will create areas with a high density of economically, socially and culturally excluded households. Social balance is thus endangered. Significant destabilization is triggered, and the weakened performance of these neighborhoods contributes to further deepening disadvantage. Strong segregation accompanied by negative social selection leads to neglect of urban public space and weakens social skills and the richness of experiences. This often results in negative image formation and loss of social integration. Population losses and the increase in vacant housing cause significant financial damage to most housing associations and cooperatives as well as many private landlords. Markets are destabilized. The problematic underutilization of the building stock continues in the use of infrastructure. Otherwise, only apartments are empty, but kindergartens, schools, public transport, doctor's offices, shops and other services are also used much less, which quickly poses existential problems for cities, because the facilities are no longer affordable. Shrinkage processes are considered quantitatively difficult to control and, in their current dimension, continuous. Anyone who wants to move away for professional reasons or because the image of the residential area no longer suits them will not be able to stay there without fundamental changes that have a reliable perspective. A redefinition of the mission statements of urban development with a decreasing population is considered a necessity. To this end, public debates should take place, which should focus on opportunities for renewal. Fundamental political decisions are considered necessary; they could and should show the prospect of a "new city quality in decline". Urban renewal programs with the necessary steering capacity, within which clear priorities..