LEGEND 
Housing Units 
  
Cultural Facilities 
Religious-Mosque 
  
   
i Health Service 
Accommodation Buildings 
Cultural Touristic Facilities 
  
      
Park, Playground” 
  
  
Figure 8. Two Dimensional Proposed Model 
of Zeyrek Urban Historic Quarter 
  
   
  
   
  
   
  
  
  
LEGEND 
8 Housing Ur 
  
   
   
  
  
   
    
Cultural Facilities 
  
  
Religious-Mosqu 
Health Service 
| Accommodation Buildings 
Culturak Touristic Facilities 
  
8 Park, Playground 
  
  
Figure 9. Three-Dimensional Proposed Model 
of Zeyrek Urban Historic Quarter 
While improving proposals for building forms, structural 
additions are firstly cleaned on listed architecture. Additions such 
as extension on plan and story heights had made the urban pattern 
be illegible. Infill applications on building forms have proposed 
as structural conditions and story heights of buildings on original 
form are taken (Figure 9). 
Designing proposed model of this study is constructed on the 
model of the current townscape. So additions and changes on 
the urban structure have been eliminated and proposed building 
forms are structured on the model. 
3. EVALUATION 
This study shows that the usage of a computer system expresses 
flexibility and convenience in three-dimensional evaluation of 
urban conservation. Using this proposed model can be 
developed for components of townscape related to urban 
pattern. 
As a result of the case study it is concluded that using computer 
based three-dimensional model provide more efficient and 
reliable utilization of resources like time, work etc than 
traditional two-dimensional methods and enhances the 
creativity. 
4. REFERENCES 
ALKHOVEN, Patricia; 1992, *The Reconstruction of the Past: 
the Application of New Techniques for Visualization and 
Research in Architectural History” CAAD Futures ’91, 
International Conference for Computer-Aided Architectural 
Design: Education, Research, Application, Vieweg & Sohn 
mbH, Braunschweig/Wiesbaden, Almanya Verlagsgesellschaft 
BERTOL, D.; 1997, *Designing Digital Space: an Architect's 
Guide to Virtual Reality", John Wiley & Sons Inc. 
BONOLLO, Monica; 1996, “Historical Reconstruction and 
Virtual Reality", Domus 784, Ítalya 
GULERSOY ZEREN, Nuran, TEZER, Azime, YIGITER, 
Reyhan; 2001. Zeyrek, a Study in Conservation. ITÜ, Türkiye 
GULERSOY ZEREN, Nuran, KORAMAZ, T.K.; 2001. 
Evaluation of Townscape in Spatial Information Systems 
Throughout Urban Conservation Application. Surveying and 
Documentation of Historic — Building-Monuments-Sites, 
Traditional and Modern Methods, CIPA 2001, International 
Symposium, Potsdam (Germany), September 18-21 2001 (on 
print) 
KARAMAN, Aykut; 1993. Urban Conservation Development 
Plan of Istanbul-Fatih District, Implementation Project of 
Zeyrek Urban Historic Quarter. 
KORAMAZ, T.K.; 2002. Three Dimensional Evaluation In 
Urban Conservation Applications Based on Computer Aided 
Design, (Msc Thesis, Supervised by Prof. Dr. Nuran ZEREN 
GÜLERSOY) ITU, Institute of Science and Technology (In 
Turkish) 
RATTI, Carlo; RICHENS, Paul; 1999, "Urban Texture 
Analysis with Image Processing Technique", Computers in 
Building: Proceeding of CAAD Futures'99 Conference, Kluwer 
Acadmic Publishers, Boston, ABD 
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