ali asghar badri, managing director of the institute of city and economy studies.hough the construction of existing tall buildings has decreased the values of residence and reduced the quality of life. on the other hand, high-rises act against the environment , but the construction of high-rises in appropriate time and place conditions should be taken into consideration. macroeconomics and urban economics are essential in big cities and tehran. but this should not happen in cities that have land and there are conditions for horizontalization. sahar nadai toosi, professor of architecture faculty of shahid beheshti university. the idea of horizontal expansion of the city towards although it can provide benefits such as providing housing and a good quality living space around cities. but there are also disadvantages compared to. horizontal expansion towards the periphery increases the costs of providing water and energy infrastructure. alireza bahaduri, director of the urban development office of the 19th district of tehran. verticalization in big cities, especial