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Hirohiko IWAHARA, Wataru SHIRAKI, Misaki ISHI
2018 Volume 74 Issue 2 Pages
I_1-I_10
Published: 2018
Released on J-STAGE: February 19, 2019
JOURNAL
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The probability of occurrence of the Nankai Trough Earthquake is said to be 70 to 80% in the next 30 years. In Shikoku district where enormous damage is expected, it is necessary to provide accurate disaster prevention information according to regional characteristics to foreign travelers. The inbound to Kagawa prefecture is the nationwide highest rate of increase (compared to the previous year) in FY 2016. However, provision of disaster information such as hazard maps is negative image information from the tourism industry, it is not aggressive.
Therefore, we conducted surveys at tourist spots for inbound and survey on the tourism industry in Kagawa prefecture on how to effectively provide tourism information and disaster prevention information. In this paper, we show the result of examining the tool which provides disaster information which understand from the tourism industry easily in inbound use.
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Misao HASHIMOTO, Norimitsu KOIKE, Erina ISHIZUKA
2018 Volume 74 Issue 2 Pages
I_11-I_18
Published: 2018
Released on J-STAGE: February 19, 2019
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This study clarified the relation between the urban land formation process and the vulnerability to the tsunami disaster in the coastal tourism area.This is the Utsumi study area of Minamichita Town, Aichi Prefecture, which prospered as a beach from the Meiji Period. First, we prepared GIS data on land use from the topographic map from Meiji 26 to Heisei 26 in the Japanese Imperial Year. And we organized the city formation process from land use change. In addition, we cross-tabulated these land use data with the tsunami inundation supposed area and the city planning map. As a result, we analyzed the urban area formation process and the vulnerability to tsunami disaster in the Utsumi area. The Utsumi area was established as an agricultural area because it has one of the few flat areas of Minamichita Town.The flat area has been transformed from the agricultural land to the residential area together with the tourism landscape as a beach. There are many residential areas in the assumed area of tsunami flooding. There are no high-rise buildings and towers. Moreover, the compartment and the road are narrow. Therefore, the Utsumi area was established as a difficult area for horizontal and vertical evacuation.
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Satoshi KUBOTA, Kazuyasu MATSUMURA, Ikuo KITAGAWA, Akiyoshi ICHIUJI
2018 Volume 74 Issue 2 Pages
I_19-I_29
Published: 2018
Released on J-STAGE: February 19, 2019
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In government and local government, a hazard map have been constructed to enlighten the public. However, it is difficult to use adequate manpower and financial resources. It is necessary to extend the creation of disaster avoidance map from local government to citizens and elementary and junior high school. In this paper, a creation supporting system of regional disaster avoidance map was proposed and tested. The systems were developed using open source GIS. And the system was used in three elementary schools for testing the usability, application, and amusement. As the results, there are a few challenges on usability. But, the system has the capability for raising awareness of disaster and evacuation route. And, elementary school students cooperated together to create the route and dangerous points on map.
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Kensuke TAKENOUCHI, Yasuyuki KANO, Katsuya YAMORI
2018 Volume 74 Issue 2 Pages
I_31-I_39
Published: 2018
Released on J-STAGE: February 19, 2019
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We had the survey on cases of successful evacuation in Northern Kyushu Heavy Rainfall in 2017 and analyzed the details of residents' responses and each community's background. As a result, we found the disaster responses by their judgements based on their own standards and the standards led successful evacuations efficiently. Moreover, there are various kinds of backgrounds (local disaster prevention culture) to share such standards in local areas. In addition, the relationship between the responses and disaster information was analyzed through time-line. The result showed their standards can function efficiently in disasters. From these results, we considered role in future of such community judegment standards and suggested local disaster response "switch" for early evacuation which can be created by synergistic integration of disaster information and their judgement standards in communities.
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Kohei HIRAKO, Yuma MORISAKI, Makoto FUJIU, Junichi TAKAYAMA, Kiyoko YA ...
2018 Volume 74 Issue 2 Pages
I_41-I_51
Published: 2018
Released on J-STAGE: February 19, 2019
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During large scale earthquake disaster, CWAP (Children, Women, Aged person, Poor person) are required special needs for prevention for damage, evacuation and so on which are mentioned past some disasters. But delay of evacuation, secondary damage and response to clinical history will cause severe diseases. Therefore, CWAP support plan after disaster is necessary to prevent some secondary damage for especially affected aged person with diseases. Then, purpose of this study is to analyze evacuation chance to shelter of affected aged person with diseases during large scale earthquake disaster scenario based on two analyses. First one: shelter and shelter for welfare capacity after earthquake disaster are calculated based on the seismic performance evaluation. Second one: reachability of affected person is analyzed using KDB database which can identify affected aged person with diseases. As a result of this study, it became clear that some affected aged person with diseases is difficult to reach the shelter due to over distance which is limitation of walking for old person.
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Miki MATSUMOTO, Tokuro SASAKI, Dicky MUSLIM
2018 Volume 74 Issue 2 Pages
I_53-I_62
Published: 2018
Released on J-STAGE: February 19, 2019
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The objective of the study is to analyze the awareness and preparedness level in Indonesia and Japan with regard to the natural disasters based on a questionnaire survey. The respondents of the questionnaire survey consist of 123 students of Indonesia, 158 students of Japan. The survey results suggest that Indonesian students have a higher level of disaster preparedness but they underestimate the possibility of disaster, and Japanese students feel strong possibility of disaster happens but they have low capability to cope with disasters.
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Keiichi YASUDA, Wataru SHIRAKI
2018 Volume 74 Issue 2 Pages
I_63-I_76
Published: 2018
Released on J-STAGE: February 19, 2019
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When managing the infrastructure maintenance plan, it is desirable to consider countermeasures to minimize the damage even if an emergency event occurs and to recover to standard maintenance level promptly. However, the resilience perspective is hardly included in the planned maintenance repair plan.
In this study, based on the idea of disaster resilience, consider countermeasures that can reduce damage (D) and measures that can shorten the recovery time (T). First, we explain points to be noticed at the respective stages before disaster occurrence, immediately after disaster, after disaster based on the four resilience characteristics (robustness, redundancy, resourcefulness, rapidity). Some countermeasures are proposed for improving resilience for each of the four resilience characteristics. Then, we evaluate how much damage can be suppressed compared with normal situation by resilience countermeasures. Also evaluate the degree of reduction in recovery time and evaluate the improvement effect of resilience capacity for three local governments.
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Susumu NAKANO, Junko KANAI, Mari TAKAHASHI, Kazuhito FUJIWARA, Shingo ...
2018 Volume 74 Issue 2 Pages
I_77-I_84
Published: 2018
Released on J-STAGE: February 19, 2019
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It was difficult to get home from the school because heavy rain fell in the afternoon at the 2017 northern Kyushu heavy rain. In recent years, damage caused by abnormal rainfall exceeding assumed is frequent, and safety measures for flood damage are important issues for educational institutions. In this research, we conducted hearing surveys on emergency response of elementary and junior high schools in Asakura city, Fukuoka prefecture and Hita city, Oita prefecture. From the survey results, we extracted problems on safety management for children and students at heavy rainfall. Furthermore, by examining the result of the flood analysis around the school, we examined in detail whether there was no problem in safety management. It is easy to think that it is better to let children and students go home promptly in the event of a disaster. As a result, students and guardians also faced a danger when coming home due to insufficient safety confirmation on the way back home. In order to secure safety during heavy rain, it is necessary to revise to assume that school is to wait until it becomes safe.
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Mari TAKAHASHI, Susumu NAKANO, Junko KANAI, Shingo YAMASHIRO, Kazuhito ...
2018 Volume 74 Issue 2 Pages
I_85-I_92
Published: 2018
Released on J-STAGE: February 19, 2019
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In the 2017 Northern Kyushu heavy rain, severe flood damage occurred in Asakura city, Fukuoka Prefecture. In Asakura City, 4 nursery schools and a kindergarten were damaged by this flood. A heavy rain suddenly began in the afternoon and it was necessary for the nursery school to respond to emergency such as handover to parents and restoration for resuming childcare.
In this study, we conducted an interview survey at city nursery section and 4 nursery schools in the city. Based on the contents of this testimony, we analyzed issues concerning crisis management and childcare continuity in nurseries at the time of heavy rain disaster.
As a result, it became clear which points to pay attention to hand over the child to the guardian, and points to keep in mind when restarting childcare quickly.
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Eiji NAKAMURA, Norimitsu KOIKE
2018 Volume 74 Issue 2 Pages
I_93-I_100
Published: 2018
Released on J-STAGE: February 19, 2019
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The underground mall of Central Park located in Nagoya is in a low risk of river and urban floodings. This paper reports potential locations of crowd congestion in case of fire or earthquakes via simulation and proposes evacuation instructions for visitors. The presented study differs from other works in two aspects. First, it is a simulation based on real number of visitors to the mall counted in our field activities. Second, it is a 3D simulation utilizing the 3D model created by referencing the record drawings of the mall. It is found that crowd congestion occurs in 4 stairs connected to the ground amaong these 28 stairs without providing proper instructions to visitors. In contrast, if the evacuation instuructions we propse are provided, our simulation results show that crowd congestion can never happen and every visitor can escape from the mall to the ground within 3 minutes.
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Madoka CHOSOKABE, Keishi TANIMOTO, Natsuki MAEDA
2018 Volume 74 Issue 2 Pages
I_101-I_109
Published: 2018
Released on J-STAGE: February 19, 2019
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Indicators for evaluating recovery from a disaster include the recovery rate of lifeline and infrastructure. However, there are few indicators to evaluate the impact of disasters on people's daily behavior. Recently, with the spread of information communication terminals such as smartphones, it has become possible to obtain enormous data such as people's location information and moving velocity. This study proposes a methodology of quantifying the impact for people's behavior at the disaster and clarifies the recovery process by using moving velocity from the point type flowing population data in the 2016 Kumamoto earthquake. The results showed that there was a decrease in the moving velocity by the earthquake and the recovery process of people's activities were different among each cities.
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Kentaro YAMAGUCHI, Keishi TANIMOTO, Madoka CHOSOKABE, Haruhiko MAENAMI
2018 Volume 74 Issue 2 Pages
I_111-I_121
Published: 2018
Released on J-STAGE: February 19, 2019
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In Japan, social interests on natural disaster are so strong that the public have high expectations of promotion of research on disaster prevention. However, because it is hard for academics to know social interests, academics have difficulty planning research strategy for disaster prevention based on evidence of social needs. The fundamental cause of this difficulty is arising from lack of method for quantification of academic / social interests. Otherwise, text analysis approach which have been greatly improved in recent years makes it possible to quantify someone's interests which are vague and elusive. In addition, it is now easier than ever to get enough text data. In this research, we suggest text analytic approach to quantify academic / social interests and proximity of academic and social interests in disaster prevention.
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Chikako ISOUCHI, Yoshiyuki KANEDA, Kazuhito FUJISAWA, Wataru SHIRAKI, ...
2018 Volume 74 Issue 2 Pages
I_123-I_130
Published: 2018
Released on J-STAGE: February 19, 2019
JOURNAL
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In this paper, the research clarified planning method for industrial recovery policy after a large scale disaster using economic indicators open data. The economic indicators are released by Government agency on web sites for the purpose of promoting regional revitalization.
Vulnerability assessment of local government against disasters are clarified by qualitative evaluations for each type of disaster, using various indicators showing the characteristics of municipality's economic independence, industry, employment, and investment.
The goal of this paper is to examine the utilization of the method for industrial recovery policy when considering industrial promotion measures and recovery / reconstruction measures.
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Junko KANAI, Susumu NAKANO
2018 Volume 74 Issue 2 Pages
I_131-I_136
Published: 2018
Released on J-STAGE: February 19, 2019
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We investigated the management situation of the welfare evacuation shelters in the 2016 Kumamoto earthquake and analyzed the problems on the management of the welfare evacuation shelter. We investigated how the number of supporters for evacuees and evacuees changed for two special nursing homes in Mashiki town, Kumamoto prefecture, where welfare evacuation shelters were opened, by interview and questionnaire. During the week after the earthquake occurred, both social welfare facilities experienced great confusion. The reason was that few staff were able to go to work due to the disaster and accepted many general evacuees. In order to avoid such confusion, it is necessary to add procedures for opening welfare evacuation shelters in BCP.
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Sosuke INOUE, Susumu NAKANO, Shintaro NEGORO
2018 Volume 74 Issue 2 Pages
I_137-I_144
Published: 2018
Released on J-STAGE: February 19, 2019
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It is difficult to secure a safety management system in emergency restoration work at large-scale disasters. It is reported that 13 people in 59% of all industries in Kumamoto Prefecture died in 2017 during the construction work related to the 2016 Kumamoto earthquake. In this research, paying attention to labor accident compensation in emergency restoration work, we examined the way of proper labor compensation system.
We analyzed the contents of labor accident compensation described in disaster agreement concluded between prefecture etc. and construction industry association. We also conducted an interview survey on the Kumamoto Prefecture Construction Association concerning labor accidents and compensation in the restoration work of the Kumamoto earthquake.
In most municipalities' disaster agreement there is no statement on compensation, labor accident compensation is left to the construction company. Meanwhile, in Kumamoto Prefecture, the Construction Industry Association has introduced its own insurance system and has achieved certain results. Based on these results, we propose ways to optimize labor accident compensation for restoration work due to emergency dispatch.
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Jun SAKAMOTO
2018 Volume 74 Issue 2 Pages
I_145-I_153
Published: 2018
Released on J-STAGE: February 19, 2019
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Completion of the road network is an important project against future large-scale disaster. However, it takes a long time to complete all the projects in the local areas because the progress of the project is slow. Thus, it is necessary to preferentially construct roads with high disaster prevention effect. This study examines the priority of road project plan. Proposed model can detect the patterns of road projects that maximize the accessibility of emergent road-recovery pair after a disaster, and shown it to be the pattern of prioritized road project. The pattern is shown by project progress rate.
As a result of applying the proposed model to the Shikoku road network project called “Shikoku 8 network”, it revealed that consecutive road projects that can greatly improve the accessibility of whole road network should be constructed preferentially from the initial stage of the project progress rate.
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Norimitsu KOIKE, Soichi SUZUKI, Misao HASHIMOTO
2018 Volume 74 Issue 2 Pages
I_155-I_163
Published: 2018
Released on J-STAGE: February 19, 2019
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Recently, at the scene of emergency medical transportation, the spread of aeromedical service by helicopter is progressing in Japan. In previous research, the rendezvous point placement planning for helicopters was discussed by the traditional voronoi division and road network voronoi division. The model used the acceptable population in each rendezvous point as the evaluation index. In this study, we proposed the method using a road network voronoi division including land use, and compared it with the previous method. In addition, our proposal model is applied to two regions for discussing the transfer possibility. It becomes clear that the acceptable population of a rendezvous point is different as the result of a three analysis method. Especially, the acceptable population in a suburban area is changed between the results using the road network voronoi division with the land use and without it. We pointed out that selection of the suitable method is important considering the necessary data and workability.
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Tomohiro YOSHIOKA, Yuichiro KANEKO
2018 Volume 74 Issue 2 Pages
I_165-I_173
Published: 2018
Released on J-STAGE: February 19, 2019
JOURNAL
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When a large earthquake occurs, a traffic flow occurs for rescue, emergency, medical care, supply of supplies, restoration work of the facility, confirmation of family safety, volunteer and so on. However, it does not understand the traffic volume and transportation method necessary to consider transportation measures. In this study, inter-regional traffic flow after the occurrence of the Kumamoto earthquake occurred in 2016 will be analyzed using mobile space statistics, one of traffic big data, and the relationship between the characteristics of traffic flow and the recovery situation of highway, railway, airline is discussed. In addition, an internet survey is conducted to grasp the period of visit to the afflicted area, visiting purpose, transportation transportation, occupation etc. Based on the above results, the importance of recovery of early trunk line traffic function is pointed out as a response to disasters.
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