City and Regional Planning / Şehir ve Bölge Planlama

Permanent URI for this collectionhttps://hdl.handle.net/11147/4274

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Author: search.filters.author.Özkan, Sevim Pelin

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  • Article
    Citation - WoS: 3
    Bicycle Route Infrastructure Planning Using Gis in an Urban Area: the Case of Izmir
    (TMMOB Şehir Plancıları Odası, 2020) Özkan, Sevim Pelin; Şenol, Fatma; Özçam, Zeynep
    As a case study about İzmir (the third biggest metropolitan city in Turkey), this paper focuses on how to determine bicycle routes in already developed built environments of densely populated cities. To do so, it identifies how to deploy certain geographic information system (GIS) tools for analyzing multilayered spatial data not only at the city but also at the neighborhood level. When interrelating multiple characteristics of majorly topography, land use and population with each other, the study deploys mainly the overlay analysis and also network analysis as complementary to each other respectively at the city level and the neighborhood level. The results confirms that the use of these GIS tools for analyzing socio-spatial data especially at multiple spatial scales can support policy-makers’ decision-makings about route choices in the immediate future of their city even in a “data-poor” context,” such as Turkey.
  • Conference Object
    Citation - WoS: 1
    Citation - Scopus: 1
    Spatial Point Pattern Analysis of Lung Cancer in an Urban Area: Izmir Case
    (Taylor & Francis, 2013) Özkan, Sevim Pelin; Tarhan, Çiğdem; Eser, Sultan; Yakut, C.; Saygın, Ömür
    In health area, in order to conduct a reliable analysis of the diseases that threat public health and develop control strategies. This is required to investigate firstly how the disease are geographically distributed, secondly regions where disease is observed more dense, and thirdly their geo-statistical aspects. The aim of the study is to prepare spatially distribution map of the lung cancer cases in Izmir, Turkey, and are distributed on Izmir map via GIS. Spatial statistics are performed and the relations of geographical factors and the cancer data are discussed. Smart maps with tabular data and displaying cancer cases on a spatially distribution maps have been produced as end products. ArcGIS and Spatial Analyst module are used for the study.
  • Conference Object
    Citation - WoS: 35
    Detection of Flood Hazard in Urban Areas Using Gis: Izmir Case
    (Elsevier, 2016) Özkan, Sevim Pelin; Tarhan, Çiğdem
    The aim of this study is to predict the potential flood-hazard areas using Shuttle Radar Topography Mission-Digital Elevation Model (SRTM-DEM). The study area is the province of Izmir. SRTM-DEM of the Izmir Province has 90 m of grid size resolution; 45 m of horizontal accuracy; and 15 m of vertical accuracy. Within this study, obtaining spatial information on flood hazard by using Izmir digital terrain models and by 3D analysis that will help to achieve the regional flood hazard management scheme is aimed. Flood-hazard areas have been identified by the use of digital elevation model covering the study area. The main rivers in the study area are Gediz, Kucuk Menderes and Bakircay that creates the coastal flood plains. In order to estimate the spatial distribution of flood-hazard areas in Izmir, five factors are used: flow accumulation, land use, slope, rainfall intensity, and elevation. The classic hydrological modelling approach was applied to determine the rainfall intensity; rainfall intensity of study region is created with the average amount of total rainfall intensity of fifteen stations in the two basins per minute using the interpolation method (spline interpolation). By the digitizing rivers, topography, flow direction and flow accumulation, as well as the flood detention areas are determined. These factors were combined with the weighted overlay method to determine categorized flood-hazard areas. As a result, possible flood-hazard areas have been determined in the case of Izmir Province. (C) 2016 The Authors. Published by Elsevier Ltd.
  • Article
    Citation - Scopus: 16
    Trade Openness, Urban Concentration and City-Size Growth in Turkey
    (Hellenic Association of Regional Scientists, 2015) Duran, Hasan Engin; Özkan, Sevim Pelin
    Aim of the present study is to investigate two important issues on urban concentration in Turkey. First, we investigate whether population tend to have an uneven distribution across cities between 1965-2012, second, we analyze the determinants of city-size growth by relating it to the process of trade liberalization and to a range of other socio-economic and geographical factors. In terms of methodology, we employ various cross sectional and spatial econometric tools to implement our analysis. Our results indicate three major conclusions: First, urban concentration tends to increase recently, leading to an unevenly growing cities and creating urban giants (i.e. Istanbul). Second, trade liberalization is shown to intensify this process since metropolitan areas, which are more open to trade, tend to grow faster than others. Third, specialization of cities in industrial activities (i.e. manufacturing) and economies of agglomeration are likely to reinforce the spatial concentration of population around larger cities.