Abstract
Landslides are the most common hazard in the state of Mizoram. Rapid development and the uncontrolled interaction with the nature are the reason for l and slide in Mizoram. Landslide vulnerability of Mizoram is already high due to lithology, land use and land cover, geomorphology and slope factor. The extensive mining activities along the highways for road construction and building materials also cause one of major landslide along the highways in the state of Mizoram. The present study investigates the Landslide Hazard Zones along the national highway 54 between Phulmawi village and Tlungvel village. The National Highway Number 54 is the most important road connecting Aizawl city and Northern, Southern and Eastern part of the State of Mizoram. Thematic layers such as slope morphometry, geomorphology, Lithology and land use / land cover were created using Remote Sensing and Geographic Information System (GIS) techniques. On the different groups of thematic layers, a weight age rating system dependent on the relative importance of various causative factors is used. In the GIS setting, the classes were given the corresponding rating value as attribute information. An ordinal ranking of 0 to 10 was allocated to each class within a thematic layer. Landslide hazard zonation map generated could be utilized as a reliable database for mitigation measures and planning for secured growth of the village.
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