Nowadays in cities, the pale role and weak existence of human presence in urban spaces and its consequences as social evolutions is the most clear and definite mater than anytime. Cities in the history through their human scale, were place places for the people, given the widespread presence and growing tendency to the use of cars and the machinated life, gradually, the man replaced its place with car which, incidentally, is the product of himself. As a result of such conditions, have been gradually faded the interaction and reactions between citizens and the city, the outcome of such an event is common dejection and depression in today's human societies. The need to return of people to the city and their role as active citizens are of the reasons of the existence of urban spaces. Squares, walkways and urban green spaces can be seen as the spaces that are able to meet the basic needs of people. Persian Garden is a phenomenon that over thousands of years, have played its role as a place for people. A lively and vibrant place where human through being in it, will step into a world different from their common environment. This article aims to evaluate the possibility of using the principles, elements and various systems of Persian Garden in urban green spaces so that in this way to be increased the desire of people for presence in these areas and positively affect social interaction and activities of people. Therefore, in the early sections, will be provided a brief introduction to the Persian Garden and then will be examined the various elements. In addition, at the end of the article, will be examined the terms of the use of the elements of Persian gardens in urban spaces.
High-Rise buildings with their particular features can affects on surrounding environment and makes new microclimates. In the windy conditions, the spaces that are between building blocks changes to passages and affects on the wind velocity, intensity and it's other parameters.The importance of this effect is different in each level of building height. The Pedestrian-Level is the lowest and one of important areas. Markets, playgrounds and pedestrian access had located in this area and any unwanted microclimate changes like high velocity and turbulence in this level can makes discomfort and dangerous condition for residents. So this research tries to consider the pedestrian-level wind comfort in some High-Rise building complexes arrangement that had located in Tehran district 22 with Computational Fluid Dynamics (CFD) modeling and reaching to a suitable arrangement pattern. It had collected the required data through field study and librarian databases and then compared them with standard guidelines and analyzed them by comparative comparison method. As a result a linear arrangement that placed crossover to wind direction for providing wind comfort and preventing wind danger is been suggested in this region.
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