The Use of Analytical Hierarchy Process and GIS in Production of Landslide Susceptibility Maps

Ali YALÇIN

Abstract


Among various natural hazards, landslides are the most widespread and damaging.
Potentials landslide-prone areas should, therefore, are identified in advance in order to reduce such
damage. In this respect, landslide susceptibility assessment can provide valuable information essential
for hazard mitigation through proper project planning and implementation. This paper presents a
geographic information system (GIS) and based the Analytic Hierarchy Process (AHP) making approach
for landslide susceptibility analyses. AHP is a commonly used solution technique for solving any multi-criteria decision making problem. This method is one of the most flexible and easily implemented multi-criteria decision making techniques. It is a theory of measurement concerned with dominance priorities
from pair-wise comparison of elements with respect to a common criterion. Multi-criteria analysis is
performed to evaluate landslide susceptibility for each data layer, according to appropriately measured
and weighted factors. A landslide susceptibility map for each data layer is developed using an algorithm
that combines factors in weighted linear combinations. To verify the practicality of the susceptibility
map was compared with a landslide inventory map containing 56 active landslide zones. The outcome
was that the active landslide zones do not completely fit into the high and very high susceptibility class.
But 84% of these landslide zones fall into the high and very high susceptibility zones.


Keywords


The Use of Analytical ;Hierarchy; Process and GIS in Production; of Landslide; Susceptibility ;Maps

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