During the 1960-1980 period, Istanbul faced a series of problems and the administrators tried to find solutions to these problems. Among these problems, the supply of basic foodstuffs, housing needs and rent problems, the supply of energy in the city and the solution to the heating problem, the work done for the supply of drinking water have directly affected the daily life of the people. Due to the intense immigration of the city, the character of the security and public order problems has changed and diversified. Investment needs in education, health and social services have increased and it has become difficult to meet the needs. The settlement boundaries of old Istanbul, which consists of Eyüp, Beyoğlu and Üsküdar towns along with Suriçi, expanded in this period. The growth initially continued around these core centers and later on in small settlements with the identity of independent villages and the city gained the identity of a megapolis. This situation necessitated planning and new expansions. The establishment of the Great Master Plan Bureau and the construction of the Bosphorus Bridge along with the ring road were programmed and implemented based on this need. The arrivals and departures from the center to the environment and from the environment to the center, which have become one of the new structural features of the city, have been tried to be overcome with urban transportation investments. On the other hand, the phenomenon of shantytown has given its color to the zoning works. Since the 1950s, squatting has been on the agenda of the country as a result of the migration from rural to urban areas. The city administration made an effort to prevent the expansion of slums and tried to find solutions for the improvement of slum areas. In this bad construction clamp, a lot of time has been spent on big building solutions. Istanbul, as a sea and port city, has tried to keep up with the changing times and modern logistics needs with new investments. As of the period, while all these problems were being addressed, two new and constantly growing problems of the city, the environment and tourism, began to make their presence felt. In this period, the local and central government gave great effort and focused on the problems of Istanbul in coordination. Solution options were developed by evaluating the possibilities, staff and budgets of the city. People who flocked to the city for work and food with new hopes waited for road, water, electricity and other municipal services from the municipality. The municipality, which does not have the capacity to meet these demands, had difficulty in producing services. Likewise, the center-periphery interaction, the increase in the density of the center and the deprivation of basic services and needs of the periphery areas have been the main problems for the city administration. The special provincial administration and the municipality did not have the necessary budget and trained human resources for the organization in the field. Other public institutions and organizations in the city service areas also complained about these impossibilities. New investment resources could not be produced and existing resources could not be used efficiently. The province, municipality and central will showed weakness in the ownership of the city and the organization of people's daily needs during the periods of May 27, March 12, September 12 and interim martial law. This situation has also rendered the coordination of established units carrying out municipal services inefficient. However, the development programs implemented throughout the country between 1960 and 1980 had a positive impact on the city. The establishment of the Great Master Plan Bureau, the planning of the Bosphorus Bridge and the ring roads gave Istanbul a new character. With the ring roads, the main burden of transportation has been thrown out of the center and the integrity of the urban transportation network has been strengthened with the Bosphorus Bridge. This quality of transportation has created new industrial, commercial and cultural areas. With the expansion of the city, the burden of the historical center residential areas has been lightened. In this new identity, Istanbul has faced with growing problems, unplanned urbanization, social reflections of slums, deterioration of its environmental texture and natural beauty.