Reading the Hidden Geometry in the Historic City and the Impact of Modern Evolution on It; Case Study: Sabzeh-Meydan, Tehran

The forming elements result in the shape of the city during the history and according to the requirements of their dweller have followed a lawful and completely intangible geometry that, in their unorganized appearance, can interact and strike a balance among government, nation, and religion. The present study seeks to read and analyze the hidden geometry in the form of the city in the historical past that facilitates the connection between social pillars of the city.

The method of this study is based on a qualitative approach of the historical-analytic type. By studying in the libraries and documents, this study has analyzed the hidden system of traditional city and the impact of modern development on it. In the case study of Sabze-Meydan, reading the hidden geometry is based on three heads of state, nation, and religion.

Hidden geometry in historic cities is a spirit that dominated the inner layers of the city and, with a systematic structure in functional and perceptual aspects, regulates the religious, political, and social relations of its inhabitants. With the advent of modernity and its fundamental transformations, the city of Tehran has been transformed. The proportions of the hidden and organic geometry in the Sabze-Meydan complex are transformed into euclidean geometry with perpendicular streets, and its balance is disturbed.

The geometric system contained in a city expresses the identity and civilization in it. The regular geometry of the modern city contrasts with the inner authenticity of the historical areas. Hence, the study of the hidden geometry of historical zones requires the adoption of an appropriate intervention approach in the city’s historical and charismatic tissues, through which historical authenticity can be restored.