Estimation of Disaster Evacuation Shelter Capacity of Hitoyoshi City, Japan

Abstract

Heavy rains since early July 2020 have caused flooding in the Kyushu area. The Kuma River overflowed due to heavy rain. The river itself located in Kumamoto Prefecture right in the Hitoyoshi city. Disaster shelter is one of the most important requirements for those evacuated in the event of a disaster. It is used to analyze the supply and demand of the shelter based on the distance from the point of application to the disaster evacuation shelter, using the P-median model. As a result, the demand for evacuation shelters in the city of Hitoyoshi is 48%, which indicates that the demand for evacuation centers in case of disaster is about half. In this study, the location-allocation method was used in ArcGis 10.6 to determine the supply-demand ratio for Hitoyoshi. These data are expected to be used to optimize the operation of shelters in the Hitoyoshi area, an area prone to disasters for future urban development. This allows evacuation or disaster safety planners to develop tools for their area during floods and provides a way to predict when an event will occur and when roads will become unsafe for the residents during the future evacuation process. When a natural disaster happens again in the future, the demand and supply of disaster evacuation shelters should be assessed to determine their total capacity.

Study on the Application of Earthquake Resistant Standards (Sni 1726:2019) Against Building in Yogyakarta City

“…Columns are viewed against the wobbling or nonswaying portals, as well as for wandering. [12][13][14][15][16][17] Based on the strong column weak beam capacity design, the column's flexural strength is computed, which is as follows.…”

“…When planning high-rise building structures with the Special Moment Bearer Frame System (SRPMK), the beam-column union or connection is crucial [16][17][18][19][20]. This is because the joints that connect the beam to the column will very often receive the force generated by the beam and column simultaneously.…”

“…. Data retrieval of SNI 1726:2012 and SNI 1726:2019 coordinate points at Yogyakarta City Hall Yogyakarta city buildings built on hard, soft soil (SC) referring to SNI 1726:2019 will be safer against earthquakes compared to buildings referring to SNI 1726:2012 due to the relatively large difference in SA [8][9][10][11][12]. Comparison of Yogyakarta Regional Design Spectrum Curves Shown in Figure5.…”