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Paper Information

Journal:   JOURNAL OF GEOGRAPHICAL SCIENCES   SPRING 2014 , Volume 14 , Number 32; Page(s) 27 To 44.
 
Paper: 

DETERMINING LANDSLIDE ZONES IN KHORRAMABAD-POLE ZAAL FREEWAY BY USING HIERARCHICAL ANALYSIS-FUZZY LOGIC METHOD

 
 
Author(s):  YAMANI MOJTABA, SHAMSIPOUR ALIAKBAR, GOORABI ABOLGHASEM, RAHMATI MARYAM
 
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Abstract: 

Road networks are threatened in the mountain areas through two major natural hazards, Slope instabilities and landslides. During construction of roads, this phenomenon shows more frequency due to disturpting the slope equilibrium. Khorramabad-Pole Zaal freewayy is a part of the Iran’s north-South transit route which is threatened through (by) mass movements. In this research at first the eight factors including slope, aspect, precipitation, road, faults, stream, land use and lithology were identified as factors that caused the landslides of area. After providing data base of spatial layers in GIS, using the above parameters and adjusting each of the layers with layer of landslide distribution, potential hazard map was prepared by Analytical Hierarchy Process Model (AHP) and fuzzy classification and using Geographic Information System (GIS). To the performance of the model, using the technique Cross tabulate area; as one of the ArcGIS operators, was calculated compliance rate the risk zone with landslide occurred. The results of the model and its implementation with the landslides occurred on the road, the suitable performance of the model in identifying high-risk areas (42%) and very high (15%), Indicate that the slope and lithology as the main factor in the occurrence of landslides, road construction has intensified. construction road landslide occurrence has intensified.

 
Keyword(s): LANDSLIDE, ZONING, F-AHP, CROSS TECHNIQUE, KHORRAMABAD-POLE ZAAL FREEWAY
 
References: 
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