let's continue hamid reza arami, secretary of the working group civil engineering and urban development of majlis research center horizontal development of cities speeds up the construction process. also, since they are technologically advanced, the construction challenges will be minimized. considering the economic situation of the country, the higher the speed of construction, the more favorable it is. because it will not be affected by inflation. sohrab mashoudi, head of the urban development group of the society of consulting engineers of iran. due to the population growth in big cities, the construction of tall buildings is a medical solution. and it is suitable for housing people. but this issue does not apply in small cities and should be a development issue vertical or horizontal construction is looked at in a specialized way . farshid ilati, housing expert. the implementation of the horizontal development plan of cities has an effective role in reducing housing construction costs, and on the other hand , it provides the basis for accelerating the housing construction process. t