1BHOJ R P, RYUICHI Y, NETRA P B. GIS-based Highway Maintenance Prioritization Model: an Integrated Approach for Highwaymaintenance in Nepal Mountains [ J ].Journal of Transport Geography, 2010, 18 ( 3 ) : 426-433.
2ZOLFAGHARI A, HEATH A C.A GIS application for assessing landslide hazardover a large area [ J ] .Computers and Geotechnics, 2008,35 (2) : 278-285.