Phd Degree / Doktora

Permanent URI for this collectionhttps://hdl.handle.net/11147/2869

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Author: search.filters.author.Süel, Akın

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  • Doctoral Thesis
    A Specaial Transportation Modelling Approach for the Disadvantaged Groups in Urban Traffic
    (Izmir Institute of Technology, 2000) Duvarcı, Yavuz; Süel, Akın
    It has been known that conventional transportation models and studies have been inadequate to solve the acute transportation problems in the urban areas to date that overwhelmingly those disadvantaged groups face. The major reason is probably that the qualitative and social parameters that could be the real factors in the explanation of the "disadvantagedness" have not been efficiently considered in the modelling because of the uncertainty, and non-normative nature of the models.This thesis study as a normative one offers basically two methodological approach that can be integrated to the normal models: First, the clear-cut defInition of so-called disadvantaged by the cluster analysis method, and second, application of the modelling procedures both for normal case and for the disadvantaged simulatenously by which the determination of policy packages (policy capturing) is probable on the basis ofthe differences between the two models. The improvement of disadvantaged means getting closer to the normality in transportation conditions. With this, it is meant that policy-making to improve the disadvantaged can even start from the modelling stages.As an innovative approach, vanous correlated variables are grouped into "Major" variables in the form of function formulations, which are thought best represent the social/qualitative parameters.In the model runs, latest version of TRANUS (6.0) was used to speed up the modelling process (especially the Trip Assignments). With TRANUS., categorical handling is possible. It is found that there appears a remarkable discrepancy between the two models at the level of Trip Generations (productions), and some different variables could be used in the model for disadvantaged.Finally, in the Correspondence Module (or, category analysis), as of the adopted equity principles, the association of those disadvantaged categories (as transportation categories) with the "disadvantagedness" levels is maintained. This matching process also provided a gauge with which the policies could be produced for the matching transportation (disadvantaged) categories. To see the effectiveness of the method, three simulations are run based on the three policy scenarios where any move towards betterment in the condition of disadvantaged is welcome.As the result of this study, though less than expected, an improvement was observed in the travel conditions of the disadvantaged. It is observed not surprisingly that policy formulations playing around the income related and vehicle ownership variables can be more successful in obtaining better results. More frequent trials with better scenario formulations as well would have ended with better results.Key Words: Transportation Planning, Equity, Transportation Disadvantaged, Cluster Analysis, Category (Correspondence) Analysis, Transportation Ethics, Modelling-, Fuzzy Sets Analysis, Sensitivity Analysis, Simulation-, Gini Index.
  • Doctoral Thesis
    Integrating Renewable Energy Technologies Into Cities Through Urban Planning: in the Case of Geothermal and Wind Energy
    (Izmir Institute of Technology, 2005) Peker, Zeynep; Süel, Akın
    Focusing mainly on renewable energy, the overall aim of this dissertation is to introduce energy and energy related environmental considerations into the context of Turkish planning and urban policies. If planning in Turkey should contribute to combat with the reality of climate change and to improve local environmental quality, renewable energy considerations are required to be incorporated into planning process. With regard to characteristics of renewable energy utilization, this study seeks to answer the questions of how planning can promote the widespread use of renewable energy sources, how renewable energy integrated planning policies can be formulated and implemented, how renewable energy integrated planning process can be put into practice, and how renewable energy technologies can successfully be integrated into cities. With the objective of defining renewable energy integrated planning process the research conducted to explore these how questions is based on the idea of learning from other's experiences. In view of that the study focuses on understanding the European perspective and learning from the experiences of the member states. While exploring how questions and converting the defined process into Turkish context the research is carried out at both national and local scale. Integrated policy approach is taken into consideration with regard to the capacity of institutional framework comprising integration between the national energy-renewable energy, environmental and planning policies. At the local scale, the research focuses on integration of renewable energy technologies into cities and the renewable energy integrated planning approach in the case of geothermal and wind energy developments and source potentials of the city of Izmir.
  • Doctoral Thesis
    Institutional Use of Information Technologies in City Planning Agencies: Implications From Turkish Metropolitan Municipalities
    (Izmir Institute of Technology, 2004) Velibeyoğlu, Koray; Süel, Akın
    This study argues the pivotal relationship between the computing technology and its organizational context. It focuses on nature of implementation in organizational settings that are becoming increasingly important. A further motivation point for this study is to reveal the different discourses (managerial/political/emotional etc.) in the cycle of implementation. The assumption behind this interest is that IT and other technologies are not value-neutral and these tools have the possibility of shaping the goals and agenda of the planning profession.As a part of methodology of the thesis, a comprehensive literature survey was completed around the theoretical issues that constitutes the framework of IT/IS adoption in organizations with a particular reference to urban planning and management. The statements and research questions were tested in the planning departments of selected metropolitan municipalities (Ankara, Izmir, and Bursa) that are experiencing information technologies and systems in various implementation stages. The research strategy was based on a variety of qualitative approaches, including two different types of closed questionnaire-based surveys and semi-structured/unstructured interviews. To measure the success/failure degree of the planning technologies used in the case study organizations in the 'user' dimension of the study, DeLone and McLean.s (1992) IS Success Model and Heeks'(1999) ITPOSMO model were used.Case study research revealed the current stands of ICT implementation in urban planning departments of local governments. It was also evaluated planning practitioner.s commitment and dependence towards computerized planning tools in working practice. In a more exploratory context, a progressive research agenda for ICT implementation in public planning agencies was developed based on the implications of empirical research and literature-based analysis.