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URBAN CONSERVATION STUDY BASED ON COMPUTER AIDED DESIGN
TECHNIQUES:A CASE OF ZEYREK/ISTANBUL
N.Zeren Gülersoy" *, T.K. Koramaz
* ITU, Faculty of Architecture, 80191 Taskisla Taksim, Istanbul, Turkey - (gulersoy, koramaz)@itu.edu.tr
Commission V, WG V/4
KEY WORDS: Conservation, Urban, Surveying, Three-Dimensional, Modeling, CAD
ABSTRACT:
Urban conservation process is mainly constituted by documentation of cultural heritage, surveying and evaluation of urban historic
quarter, planning and design of spatial organization of the site. Going through this process, architect and planner should evaluate the
townscape that this site has its own potential. After the development of computer-aided three-dimensional presentation techniques,
evaluation of townscape gained more importance in the urban conservation process. Newly developed computer-aided technologies
shorten the time spent and make-work easier than before.
The aim of this study is to evaluate the conservation potential of a historic townscape and to generate a computer-aided three-
dimensional model for the conservation of urban historic quarter.
1. INTRODUCTION
Through the urban conservation studies, evaluation of
townscape, which gives the main characteristics and visual
potential of historic quarter, has gained serious importance.
Aim and Objectives of the Study
Visual Documentation and
Survey analysis
Parameters of townscape cannot be efficiently evaluated in two-
dimensional expressions and representations. Three-dimensional v
analysis can create opportunities to define parameters of townscape Three-Dimensional Modeling of Zeyrek
and urban pattern both. Briefly on the three-dimensional analysis
more parameters can be understood. CAD modeling by the help of
digital maps
1.1 Aim of the Study
Y
The aim of this study is: Survey of Zeyrek Urban Quarter
e To evaluate the conservation potential of the 1. Building Uses
townscape of an urban historic quarter, 2. Building Condition
3. Building Construction Material
4. Ownership
5. Building Occupancy
6. Listed Buildings
1.2 Structure of the Study —
e To generate a three-dimensional model for townscape
restoration and urban conservation by using CAD
systems.
Townscape Analysis of Zeyrek Urban Quarter
1. Townscape Analysis of Structural Condition
2. Townscape Analysis of Visual Quality
3. Townscape Analysis of Accessibility
4. Townscape Analysis of Harmony
This study is mainly formed of three stages (Figure 1).
Through the conservation of townscape in Zeyrek Urban
Historic Quarter, the first stage is three-dimensional modeling
oftownscape. This model, forms the base of the next stages.
The second stage is surveying and evaluation of townscape in
three-dimensional model. The last stage is developing a
proposal for the conservation of townscape of Zeyrek Urban
Historic Quarter. At this stage, application decisions for urban
CAD rendering to constitute
analysis on layer properties
conservation follow the evaluation of townscape. '
Proposal for Townscape in
Of all stages, the study constitutes CAD model that represents Zeyrek Urban Historic Quarter
three-dimensional structure.
Figure 1. Structure of the Study
* Corresponding author
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