Physical measurement of the form of the city based on density (a case study of Amol)

Density is one of the most imprtant factors to know the form of a city whose analysis would be a useful way to organize the system of population distribution and activity of the city. Analysis of urban space density is an attempt to organize the physical pattern of the city aimed at planning for the space organization of the city. Defining and presenting different indices of density and space analysis, this study tries to survey and analyze this concept more thoroughly to present a more complete image of Amol’s form. This is a practical study with quantitative analysis. To calculate the density distribution, the density analysis method and quantitative models such as Williamson, Relative Anthropic and Shannon were used. To analyze the space pattern of distribution the space autocorrelation technique was used and hot spot and cold spot maps were prepared by G statistics. The results show the centralization of new buildings and differences between various regions of Amol. Based on Anthropic and Williamson models, F.A.R indices, net and gross residential density during the decade under study had unequal distribution and density indices of household in housing and family in housing had equal density. In the beginning of the period, the highest level of density was related to the F.A.R, which shows the high level of area in housings. But at the end of the period, the general residential density experienced the highest level of density, which represents the construction boom in Amol.