Landslide specific risk assessment on part of southern Alborz, Iran

Although occur of natural events such as landslides can not be prevented, but their losses and impact can be reduced by recognition, assessment and risk management. Landslide specific risk may be defined as degree of vulnerability from a landslide event in every point of region.
In this research the elements at risk are population; constructions, natural and agricultural resources, that potentially affected by the landslide hazard.
Landslide frequency and relative preference of effective factors index have been used in hazard assessment. Vulnerability mapping carried out with use of run out distance index and frequency of exposed elements.
Index overly multi class model is used to creating the weight maps. This is an increasing operator and the high weight in its pixels shows high sensitivity. Therefore it is suitable for sensitive land use. The final specific risk map is necessary source on land use planning and prediction of losses in change land use or load frequency of land.