Vertical evacuation planning to reduce a risk of a tsunami disaster in teluk segara district, bengkulu city

Sigli City Sub District is one of the Sub Districts affected by the 2004 tsunami. At that time, the community did not understand the danger of the tsunami and did not understand how to save themselves. The purpose of this study was to identify and to map out effective tsunami evacuation locations and routes in Sigli City Sub District using Dijkstra algorithm. Primary data (tsunami inundation) for this study were obtained from interviews with community representatives involving 32 people in 16 villages. Administrative map, topographic map, population density map, contour map and land use map (secondary data) were obtained from relevant institutions. The results of the study indicate that horizontal evacuation can be done through available paved road living the coastal area towads 4 recommended locations based on the physical feasibility of the land. For vertical evacuation, 24 buildings available in 7 villages can be recommended, on the condition that their structural feasibility and access standard are met.

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Tsunami Disaster Mitigation by Integrating Comprehensive Countermeasures in Padang City, Indonesia

Journal of Disaster Research ◽

10.20965/jdr.2012.p0048 ◽

2012 ◽

Vol 7 (1) ◽

pp. 48-64 ◽

Cited By ~ 30

Author(s):

Fumihiko Imamura ◽

◽

Abdul Muhari ◽

Erick Mas ◽

Mulyo Harris Pradono ◽

...

Keyword(s):

Disaster Mitigation ◽

Frame Structure ◽

Earthquake Scenario ◽

Tsunami Disaster ◽

Inundation Area ◽

Residential Population ◽

Vertical Evacuation ◽

Evacuation Routes ◽

Tremor Analysis ◽

The Impact

This paper describes the results of a comprehensive analysis for tsunami disaster mitigation in Padang City, Indonesia. Assessment consists of several steps, starting from the construction of tsunami hazard maps based on the most probable earthquake scenario in the future. Results are then analyzed to determine the impact on residential population along potential evacuation routes. Next, from the standpoint of hazards, we move to the analysis of human’s vulnerability during evacuation. The term “vulnerability” is associated with available evacuation time. Here, we conducted a static evacuation model using the GIS platform and a dynamic approach using multiagent paradigm. Results of evacuationmodeling suggest that some residents may not have enough time to leave the tsunami inundation area before the first wave comes. We therefore propose using relatively high buildings as vertical evacuation sites. One of potential candidates that survived from a devastated earthquake with 7.6 Mw in 2009 is selected to be further analyzed its antiseismic deficiencies based on design ground motion obtained from micro-tremor analysis and synthesized recorded wave in Padang. As a result, even though the building underwent some damage, the frame structure was able to withstand the shaking and keep the building from collapsing.

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Analisis Kelayakan Proses Evakuasi Vertikal pada Daerah Zona Merah di Kecamatan Kuta Alam

Jurnal Teknik Sipil ◽

10.24815/jts.v10i1.18180 ◽

2021 ◽

Vol 10 (1) ◽

pp. 9-19

Author(s):

M. Isya ◽

Azmeri Azmeri ◽

Enny Irmawati Hasan

Keyword(s):

Tsunami Wave ◽

Tall Buildings ◽

Disaster Risk ◽

The Other ◽

Tsunami Disaster ◽

Vertical Evacuation ◽

Evacuation Routes ◽

The Village ◽

Very High ◽

Main Strategy

Kuta Alam Subdistrict is one of the Districts which are prone to tsunami disaster, 5 Gampongs from 11 Gampongs in Kuta Alam Sub-district are Gampong in the red zone, namely Gampong Lampulo, Gampong Lamdingin, gampong Lambaro Skep, Gampong Mulia, and gampong Peunayong. Based on the level of vulnerability, the five Gampongs are included in the Village which has a very high risk of tsunami. The main strategy to reduce disaster risk is to reduce casualties, namely by evacuating residents in vulnerable areas before the tsunami wave arrives in the area. Vertical evacuation is an evacuation carried out by moving residents from exposed areas by utilizing tall buildings or hills around vulnerable areas as evacuation sites. The feasibility of evacuation can be seen from the feasibility of the route, the feasibility of alternative evacuation buildings, travel time, and the mode used. From the analysis, it was found there is 11 alternative evacuation buildings can be used as evacuation buildings, where all buildings are declared feasible, and 11 evacuation routes, where only 1 route is declared feasible to be taken by vertical evacuation, while the other 10 routes are not feasible to walk

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Structural evaluation of Ikhwatun shelter building constructed on liquefaction potential area in Padang city, Indonesia

MATEC Web of Conferences ◽

10.1051/matecconf/201927601019 ◽

2019 ◽

Vol 276 ◽

pp. 01019

Author(s):

Fauzan ◽

Abdul Hakam ◽

Rina Yuliet ◽

Jonathan Vincensius Osman

Keyword(s):

Response Spectrum ◽

Soil Liquefaction ◽

Capital City ◽

Reinforced Concrete Structure ◽

Liquefaction Potential ◽

Tsunami Disaster ◽

Structural Evaluation ◽

Soil Evaluation ◽

Vertical Evacuation ◽

Future Earthquake

Indonesia has often experienced seismic natural disasters such as earthquakes and tsunamis especially Padang City, the capital city of West Sumatera, Indonesia. In order to face the future earthquake and tsunami disaster, the local government has built a number of vertical evacuation shelters. One of the shelters is Ikhwatun shelter building located in Koto Tangah Subdistrict of the Padang City. The shelter was built near to the coastal and expected has liquefaction potential. This study is conducted in order to evaluate the shelter to restrain the earthquake and tsunami loads. The building is made of the reinforced concrete structure with the floor area of 2680 m2 and the high of 22.78 m. Based on the result of the soil evaluation, it was found that the soil deposit in the shelter has high liquefaction potential. Therefore, the upper and lower structures are analyzed using special response spectrum of the earthquake loads for soil liquefaction, which is 1.5 higher than those on the non-soil liquefaction. The analysis result shows that the beams, columns, and foundations are all not able to resist the applied tsunami loads. It is suggested that the building to be strengthened before being used as a vertical evacuation shelter.

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Tsunami Inundation Map and Its Application on Evacuation Planning in Taiwan

Journal of Earthquake and Tsunami ◽

10.1142/s1793431115400047 ◽

2015 ◽

Vol 09 (05) ◽

pp. 1540004 ◽

Cited By ~ 3

Author(s):

Bing-Ru Wu ◽

Siao-Syun Ke ◽

Tso-Ren Wu ◽

Kun-Sung Liu

Keyword(s):

Local Governments ◽

Evacuation Planning ◽

Disaster Prevention ◽

Local Conditions ◽

Tsunami Inundation ◽

Tsunami Disaster ◽

Inundation Maps ◽

2011 Tohoku Tsunami ◽

Evacuation Plans ◽

Inundation Map

The casualty and impact induced by the 2011 Tohoku tsunami event and the earthquake in Japan drew considerable attention of Taiwanese government and civilian to review what we have accomplished for tsunami disaster prevention. However, at that time, there was no applicable tsunami potential data for local governments in Taiwan to draw the tsunami evacuation plans. Therefore, the simulation result is adopted in this study to produce the first version of tsunami inundation maps for coastal cities/counties in Taiwan. Furthermore, a planning guideline including analytical procedure and methodology is proposed to help local governments make tsunami evacuation plans using tsunami inundation maps. Examples are given in each analytical step to illustrate typical outcomes and suggestions on planning based on local conditions. This guideline and tsunami inundation maps have been submitted to central and local governments for evacuation planning. The application in one county is chosen as an example to demonstrate the practical achievement of this study. A thorough tsunami evacuation planning associated with education and training is crucial to disaster prevention of tsunami.

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