By recontextualizing spatiality, it is arguable that the meaning of &lsquo / space&rsquo / as a term varies from the most local to the global geographies. &lsquo / Space&rsquo / as a term for this thesis does not only mean the architectural spaces, but also the social spaces. This thesis aims to define and investigate the dynamics of &lsquo / Thirdspace&rsquo / as a key term and to locate it in the specifities of urban within the area of resistance and transgression. &lsquo / Thirdspace&rsquo / is illustrated as a wider sphere of participation forpolitical resistance. As a space, it is the new meeting places for diverse oppositional practices, for multiple communities of resistance. It is a space that is both center and the margin, which enables the radical social action everywhere in the world, from local to the global. The theoretical framework for understanding the tools of our critical approach will be provided by a comprehensive literature about &lsquo / identity politics,&rsquo / which can be defined as the theoretical base of the concept of &lsquo / Thirdspace.&rsquo / After an extensive analysis about the dynamics of &lsquo / Thirdspace&rsquo / for political resistance, it is concerned to locate the concept of &lsquo / Thirdspace&rsquo / within the material world as a case study. The case study aims to exemplify firstly the &lsquo / Istiklal Street&rsquo / as &lsquo / Thirdspace&rsquo / , secondly political position of &lsquo / Saturday&rsquo / s Mothers&rsquo / as &lsquo / thirdspace of political choice&rsquo / , and lastly to demonstrate the reciprocal relations between them within the framework of the relationship between space and politics.

Today, the world is in a continuous process of change, which is conceptualized as globalization. Although the concept is generally related to economy, it affects aspects of human life / i.e. social, cultural, political and so on. The impact of globalization on urban areas requires a special emphasis. Economic development has played a significant role in restructuring the city. Particularly following the 1970s, with the changes in the international economic system, the world has started to transform into a global market and the capital has gained liquidity in this system. Along with the changing system after the industrial restructuring, capital accumulation in developed countries has started to accumulate towards new places. In order to attract capital, the roles of cities are reshaped in the globalization perspective. Globalization led to the formation of the new land uses in order to adapt to the competitive global system, which caused a transformation period of spatial structure. However, these competitive conditions led to unplanned spatial development, especially in the cities of developing countries. This study aims to identify the spatial changes caused by changes in economic conditions, under the impact of globalization and the development process of Maslak, which has been taking place along with the globalization process, and the role of planning system throughout this process in the global city of Istanbul constitute.

This thesis analyzes the inherent informal political relations embedded in urban planning process in the city of Ankara between 1985 and 2005. It has been argued that, urban planning process is -by nature- a political process and micro level political interactions in urban political sphere can be observed by looking at it. The urban planning process, as a political process interacts with existing political mobilization mechanisms and their spatial reflections. Such an interaction may cause emergence of informal political networks interested in derivation of urban land rent. The emergence, sustenance and persistence of these networks are related with the opportunities and legitimization potential of urban planning process. For the verification of hypothesis of the research the city of Ankara was taken as the subject of case study. A methodology consisting of a two phase research is devised to analyze the nature and the dynamics of these networks In the first phase a conventional statistical analysis the research universe consisting of all the all urban development plans and modifications realized in Ankara between 1985 and 2005 was realized. Then, in the second phase based on the patterns explored in the research universe, a specific example of urban planning process was chosen, which represents the patterns of the research universe. This example, &Ccedil / ayyolu 907 Parcel, then subjected to social network analysis. The results of the research has shown that, when the structure of the local political structure changes altogether as a result of for example local elections, the structure of existing informal political networks and the way they exploit urban land rent changes. In these periods the number of urban development plans and urban development plan modifications increase, while the size of the area covered by these plans tends to decrease and mostly confined to prospective areas in central business district and residential areas. Yet, by the time passes, new and diverse political relations are established congruent with the existing political mobilization mechanisms. This time, although the number of plans decreases, the size of the area covered by plans increase and mostly, vacant land in the fringe of the urban macro form become the target of these networks. Although these networks involve a hierarchy in it, extensive brokerage and patron client relations sustain them.

In the last decades, the spatial organization of services has become a key issue in the urban planning literature. The basic reasons for this significance are the difficulties not only in understanding this complex and context-dependent organization, but also in developing planning interventions for this organization. Moreover, author believes that the existing theoretical frameworks have some inabilities in interpreting the spatial organization at the intra-metropolitan scale. Therefore, this study basically aims to redefine the spatial organization of service activities in Ankara with a relational perspective, and consequently, to develop an information-base for new types of planning interventions. For this purpose, first, the concepts and the fields of concepts that are integral to the spatial organization of services are examined. These concepts are the spatial patterns of concentration and dispersion and the spatial cohesiveness. Thereafter, the analytical framework that is required to study these concepts empirically, is introduced by stating the advantages of using descriptive mathematical techniques, indicators and methodological procedures in relational perspective. In the case study, the spatial organization of services in Ankara is redefined basically with reference to the spatial patterns of concentration and dispersion and the spatial cohesiveness of services. This redefinition displays the monocentric structure of Ankara and the differentiated parts within the spatial organization of services according to the activity compositions. Afterwards, this redefinition is utilized as the starting point for the reformulation of a new planning approach and new regulations directed towards the differentiated parts of the spatial organization of services. Finally, the methodological and contentual contributions, and also the possible further studies are presented as concluding remarks.

This thesis examine the problems in the transformation process of Kaziki&ccedil / i Bostanlari, which was planned as a &ldquo / central development area&rdquo / after 1970&rsquo / s, in terms of the Ankara city center problematic. For Kaziki&ccedil / i Bostanlari, which shows the transition zone character, decisions were taken by three Master Plans to be new Central Business District and for the application a Development plan was prepared. But starting from the 1970&rsquo / s the area has been going on its development according to its inner dynamics. In this thesis, first, theories about CBD are analyzed. Then, general characteristics of Ankara city center and Kaziki&ccedil / i Bostanlari and interventions to Kaziki&ccedil / i Bostanlari in respect to the CBD transformations are discussed. Finally, Kaziki&ccedil / i Bostanlari and its current situation in terms of transition zone characteristics, and threats and opportunities concerning the CBD transformation are evaluated.