Browsing by Author "Terzi, Fatih"

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Re-Coding the Characteristics of Public Spaces: the Case of İstanbul
(Konya Technical University Faculty of Architecture and Design, 2019) Terzi, Fatih; Akay, Mert; Erdem Okumuş, Deniz; Gökçe, Pınar
This study proposes a quantitative assessment method to ascertain urban square potential at 12 gates of the historic city wall where different typologies, characteristics and periodic features are observed in Fatih district of Istanbul. The quantitative assessment method is based upon a series of indexes including 7 factors in total consisting of 35 indicators. The proposed method developed an “urban square potential index”, making use of “transport and accessibility”, “convex size”, “built-up environment”, “purpose of use and density”, “morphology”, “landscaping character” and “identity” factors. This index enables assessment of a square according to a) historical-cultural heritage richness and identity, b) functional diversity, c) accessibility, and d) vitality and spatial quality. This paper presents a base for “decision-support system” for decision-makers in determination of the most suitable square with a limited budget, time, labor and equipment during urban square development, design and improvement activities. Furthermore, it allows determination and implementation of the necessary interventions/improvements in order for the available undefined urban spaces to gain urban square functions.
Reconsidering Urban Densification for Microclimatic Improvement: Planning and Design Strategies for Istanbul
(Konya Technical University Faculty of Architecture and Design, 2022) Erdem Okumuş, Deniz; Terzi, Fatih
One of the key issues of the urban planning agenda is how urban density be decided in the spatial configurations of future neighbourhoods to overcome complex challenges such as urban warming. This paper aims to reconsider urban density as a spatial planning instrument to develop effective densification policies, planning and design strategies in terms of surface urban heat island (SUHI) mitigation in Istanbul. The quantitative research embraced a four-stage methodology including grid-based sampling design, decoding the taxonomy of urban density-matrix (UDM), land surface temperature mapping, and ANOVA tests. Tests were conducted on the UDM consisting of nine building typologies representing the horizontal and vertical urban density. The research indicated that the impact of urbanisation on SUHI can be mitigated by controlling densities and urban forms based on quantitative findings. The highest temperatures were recorded in areas with high-coverage-mid-rise and mid-coverage-mid-rise development. The different levels of SUHI in different building typologies having the same density indicated the mitigation potentials of the built-form in Istanbul's local urban warming. Low coverage and high-rise building forms were an optimal solution for mitigating SUHI in densely populated urban areas. The research gives insight into an ongoing debate among urban professionals in Istanbul concerning the impacts of density and the urban form for climate adaptation. It enables professionals to understand the impact of urban planning decisions on microclimate and integrate them into the operational processes. Considering quantitative research findings as a strong foundation for developing policy recommendations and using them as a guideline may create new opportunities for researchers, practitioners, and policymakers. The study has an original value for exploring design strategies to improve microclimate and promoting sustainable urban development.