Historical Peninsula Research Articles

A case study on the historical peninsula of Istanbul based on three-dimensional modeling by using photogrammetry and terrestrial laser scanning

Terrestrial laser scanning is a popular methodology that is used frequently in the process of documenting historical buildings and cultural heritage. The historical peninsula region sprawls over an area of approximately 1,500 ha and is one of the main aggregate areas of the historical buildings in Istanbul. In this study, terrestrial laser scanning and close range photogrammetry techniques are integrated into each other to create a 3D city model of this part of Istanbul, including some of the buildings that represent the most brilliant areas of Byzantine and Ottoman Empires. Several terrestrial laser scanners with their different specifications were used to solve various geometric scanning problems for distinct areas of the subject city. Photogrammetric method was used for the documentation of the façades of these historical buildings for architectural purposes. This study differentiates itself from the similar ones by its application process that focuses on the geometry, the building texture, and density of the study area. Nowadays, the largest-scale studies among 3D modeling studies, in terms of the methodology of measurement, are urban modeling studies. Because of this large scale, the application of 3D urban modeling studies is executed in a gradual way. In this study, a modeling method based on the façades of the streets was used. In addition, the complimentary elements for the process of modeling were combined in several ways. A street model was presented as a sample, as being the subject of the applied study. In our application of 3D modeling, the modeling based on close range photogrammetry and the data of combined calibration with the data of terrestrial laser scanner were used in a compatible way. The final work was formed with the pedestal data for 3D visualization.

Seismic microzonation of the historic peninsula of İstanbul

In this study, the geological and geotechnical conditions of old Istanbul (Fatih and Eminonu provinces) were investigated in detail and a seismic microzonation study was undertaken for this historical peninsula, which is the site of many ancient structures. Dynamic site response, liquefaction potential and slope stability analyses were carried out, based on field and laboratory tests and earthquake time histories computed with respect to probabilities of exceedance of 10 and 40% in 50 years. The output data obtained from the analyses were evaluated by GIS techniques, and ground shaking, liquefaction susceptibility and landslide hazard maps were prepared.

Functional change as an indicator of transformation near the old city centre of Istanbul

Over time, the residential areas close to city centres have experienced change in their function and social structure. In Istanbul a functional and social change is also observed, especially in the residential buildings near the historical city centre. This study investigated this process of transformation through a research project conducted in the southern part of the Istanbul Historical Peninsula (old city centre) and documents the recent functional changes in this district. It also considers the role of tourism in the process of inner city transformation. On the basis of the data collected during the study, proposals are forwarded for the future development of the area.

Historic North Queensferry and Peninsula: The Archaeological implications of development

Historic North Queensferry and Peninsula: The Archaeological implications of development

TARİHİ KENT MERKEZLERİNİN KORUNMASINDA BİR İŞLEVSİZLİK ÖRNEĞİ: 1990 İSTANBUL İMAR PLANI

The Historical Peninsula of Istanbul, which has thousands of years of cultural heritage, faces the danger of adding a new one to various destructions it was exposed to with the increase of its population throughout its history. A reconstruction project was prepared in 1990 to preserve the city, which has a rich cultural heritage in terms of historic fabric and works of archaeology. In this study, the new status of the ruins in the historical peninsula and the Protection Plan which was changed in 1990 were discussed including the negative aspects of this plan.