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Analysis of Tsunami Evacuation Route Planning in Kulon Progo Regency
Last modified: 2022-12-01
Abstract
Kulon Progo Regency is prone to tsunami disasters because it is located on the southern coast of Java Island and facing the subduction zone of the Eurasian Plate and the Indo-Australian Plate. In reality, the condition of the road on the coast of Kulon Progo Regency which extends from east to west can be an obstacle in the evacuation process if there is no proper evacuation route planning. Therefore, it is important to plan an evacuation route in the coastal area of Kulon Progo Regency. The purpose of this study is to map the tsunami evacuation route and evaluate the tsunami evacuation route with field conditions on the coast of Kulon Progo Regency. Evacuation route planning was built using Multi-Criteria Based Least Cost Path Analysis. The parameters used in this study are land use, slope incline, and slope which are used as simulation models in decision-making. The least cost path analysis for determining the evacuation route was carried out in 2 scenarios, namely for vehicles and pedestrians. The results of the least cost path analysis of the vehicle scenario are considered less suitable because the results are more through land use and away from the road network. The pedestrian evacuation scenario is more in line with reality because it produces a path that is adjacent to the road network, so that it can be passed either by vehicle or pedestrian.