A survey of pattern geomorphic elements in urban land use and physical development with G.I.S (mahdeyshahr semnan province)

Of geological events on the earth and the earth. Earth over millions of years has witnessed several incidents of relief today as the volcanic plains, seas, rivers and magnificent works of ancient organisms are and geology to study carefully and then compel contemplation and interpretation. Every year very large mass movements occur Nqat world including our country. Of the geotechnical faults are located on the back strap. Technical deal with a range of adverse effects caused by the movement of factors of sustainable development of human society is the and identify important factors in reducing future disaster losses have important roles. This study identified vulnerable communities in disaster is MahdiShahr. The first important factor in the city's vulnerability to movements in the general introduction to the most important structural features such as Physical development of the city life .privacy of the buildings, building density and population density of faults privacy risk facilities  And the use of aid and open spaces are studied. The combined weight of the layers above this layer in GIS conclusion is done And the outcome of events in vulnerable areas of priority for the MahdiShahr Reforming, modernizing and retrofitting of buildings in the city are MahdiShahr.