Survey of Density Effect on the Resilience of urban region (case study: Neighborhoods, Area number one of fourteen region in Tehran)

Tehran outside the urban population increase capacity problems, physical, social, economic and ecological challenges for urban planners and citizens have provided a large part of the population of condensation is caused by lack of attention to the issues planners. This problem is compounded when the old texture urban areas to motivate the citizens for the renovation of the facilities offered by the unwanted population density increases. The purpose of this paper, the effects of population density, land use Density and building Density to the resilience, the local area is a region in Tehran fourteen. In this study, the fuzzy model is used and the method of data collection as well as documentary and field has been made. The result is a negative relationship between urban Density and resiliency show that by increasing the density, resilience in communities reduce their vulnerability increases. As the uncertainty in resilience is important topics fuzzy model is the best option to normalize the data that has been used. The study “ Dejkam” highest density neighborhoods that make up the bottom of the resilience of the neighborhood and increase its vulnerability And “Ahangaran” neighborhoods with the lowest land use density and building density of the area from the perspective of density neighborhoods is the most resilience.