GCRIS

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A Method for Gis and Bim Integration To Support Automated Zoning Code Compliance Checking
(Izmir Institute of Technology, 2020) Demir Altıntaş, Yelin; İlal, Mustafa Emre
This thesis constitutes a study in the field of BIM-GIS interoperability, with a concentration on code compliance checking. Code checking requires appropriate computer-based models of building codes in digital format, zoning plans in GIS and building designs in BIM environment. However, in existing design environments, it is not possible to access neighborhood data. Interoperability and geographical data transfer from GIS to BIM environments are problematic. This study proposes a methodology for the creation of a third-party platform that draws IFC and GML data from both BIM and GIS environments separately and then combines them in a unified domain model appropriate to the field to be used in code checking processes. The proposed methodology includes the identification of the required data in the area of study; identification of how much of the data can be modelled with BIM model or GIS model; construction of the BIM and GIS domain models using the identified data; and development of an application that integrates the two domain models and manages them as a whole. For validation of the methodology and testing the developed platform, a proof of concept prototype is developed. The system retrieves building codes, reads the BIM file sent by the architect, and retrieves the information on the neighborhood the building is located in from GIS and conducts the checking process. The system demonstrates that BIM and GIS information can be compiled together during a code checking process creating a third-party platform. The applicability of the model has been evaluated through use-case scenarios. The use-cases demonstrate that the zoning domain model developed in this thesis can be used as a database to manage geographical information. Coupling the zoning domain model with BIM data supports digital code checking, eliminating the need for hard copies and simplifying approval processes as well as enabling architects to self-check designs for compliance before submitting them to municipalities.
Gis Besed Spatial Equity Mapping and Park Provision at Neighborhood Scale: Izmir Case
(Izmir Institute of Technology, 2019) Özkan, Sevim Pelin; Şenol, Fatma
Decision making and implementation processes of allocation of neighborhood parks are significant in urban planning. Neighborhood parks contribute to the continuity of biodiversity and improvement of individual/communal physical, social and mental health. Such green public areas in the city are planned under the influence of multi-factors that do not always prioritize these significances and accessibility of these areas for various social groups. As in the case of Izmir City (Turkey), ultimately, there are spatial inequity among neighborhoods in terms of the existence of public green areas. The areas with limited size of neighborhood parks have often high percentages of children, elderly and low-income—that is the social groups that need to get access in walking distance and benefit from these areas. This study conceptualize these areas as ‘park poor’ and the potential user groups as need groups. This study argues that it is possible to develop accessible new green areas in already developed “park-poor” urban areas. Using tools of Geographic Information Systems (GISs) and relying on need-based equity approach, this study presents a GIS based procedure to assess the accessibility to existing park areas and to allocate new neighborhood parks at the neighborhood level in “park-poor” areas of Izmir (Turkey). It contributes to the discussions about the spatial equity mapping and accessibility to areas as part of environmental justice issues. Also, arguing that urban green areas are public resources, this study emphasizes that urban planning policies must re-plan neighborhood parks based on the need-based equity that favors accessibility of neighborhood parks primarily by children, elderly, women and low income groups. Moreover, this study differs greatly from earlier studies about its spatial scale of investigation and use of data. This study suggests park provision procedure in park-poor neighborhoods. To develop these at the neighborhood-level, a set of spatial-statistical analyzes are developed using GISs.

Phd Degree / Doktora

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