Recovering historical urban texture by parametric computing modeling" Historical Tehran as case study

Traditional urban texture shaped by nature, was forgotten by the industrial revolution and the advancement of technology in the field of architecture. Traditional urban design processes lack of the flexibility to deal with the complexity of the community. The complexity and uncertainty of urban environments by using traditional design methods have made it difficult to make definite plans for urban design in many cases. Since the structure of environment is having ability to convert to design parameters; therefore by using method of the parametricism, it will be possible to easily change the environment information. And the result of the change and adaptation of the design at each stage will be with new data. Because of this system dynamically updated, the design is updated with each change of input by the designer. The aim of this study is to identify features and benefits of using parametricism and computing for rebuilding a newly designed urban fabric after destroying and recovering the ancient special identity of a city. Unfortunately in the city of Tehran, the capital of Iran, the traditional face of the city is destroyed by builders and most of buildings which are our monuments convert to shopping mall and towers. In this article we first talk about the traditional urban texture of Tehran then we discuss about patterns obtained from urban texture of ancient Tehran. Finally by inputting these patterns as design parameters in grasshopper plugin, that is the most widespread plugin for parametric design, we rebuild a newly designed urban fabric of Tehran.