Landslide Evaluation of Isparta-Burdur Mountain Road by Using GIS and Frequency Ratio Method

Landslides are coming to the road especially in rainy months on the road, which is known as mountain road, which brings the distance between Isparta and Burdur to 21 km from 52 km. The work area has been trafficked after construction work and has become the preferred route for many vehicle drivers, including heavy vehicles. It is thought that factors such as mountainous topography, geological and geomorphological features, climatic conditions and seismic potential of the region cause landslide formation in the region. In this study, it was aimed to determine landslide susceptibility map and determine the factors causing landslides by using Geographical Information Systems (GIS) based frequency ratio (FR) method in the mountain road between Isparta and Burdur. In the analyzes made for this purpose; topography height, geology, proximity to the road, slope, elevation and slope inclination. GIS has been chosen as a method to make analysis more precise, faster and easier. The bases generated by the office workings helped to accelerate fieldwork and achieve more accurate data. Landslide areas in the study area were field observations and 1/25000 scale topographic maps were processed. The sensitivity maps obtained at the end of the study; planners, decision makers and local governments