• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2019.05a
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• pp.392-394
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• 2019

Tunnels and subterranean roads, which are representative evacuation facilities for national or regional disasters, have radio relay broadcasting facilities for legal reasons and convenience reasons. However, this system is limited to radio broadcasting and it is impossible to effectively communicate disaster or emergency situations that occur locally due to broadcasting of national broadcasting without DMB broadcasting. In order to improve this, we construct a remote disaster broadcasting system at each regional disaster station and implement a system to transmit it to each tunnel using internet or LTE network. The system in the tunnel transmits the emergency broadcasting signal through the existing relay equipment through the modulator which decodes the SMS, the media file, the real time broadcasting or the image received by the digital signal and converts it into FM and DMB frequency. The method proposed and implemented in this study can be used to provide efficient information and remote field control in case of emergency in tunnel and underground roadway.

• Journal of the Korean Society of Safety
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• v.34 no.4
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• pp.111-118
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• 2019

Accidents occurring due to natural disasters in chemical process facilities where technologies are concentrated can cause secondary damage. The concept of the relationship between natural disasters and highly intensive technologies has evolved into the Natech (Natural Hazards Triggered Technological Disaster) research. Currently, the number of earthquakes is increasing all over the Korean peninsula. To assess the risk of Natech when an earthquake has occurred in South Korea, the Rapid Natech Risk Assessment Tool (RAPID-N) developed by the European Commission's Joint Research Center (EC JRC) was used in the present study. The RAPID-N can be used for Natech risk assessment based on mapping and can be utilized for sufficient preparation for reduction of the effects of Natech accidents. A total of 261 chemical facilities actually existing in Pohang were initially analyzed to select eight facilities and the Pohang earthquake that occurred in 2017 was implemented in the RAPID-N utilizing the shake map. High risk areas were selected through Natech risk assessments for the selected eight work places and countermeasures for the areas were suggested. High risk areas exist depending on the location, since the damage influence ranges could be overlapped and each chemical facility has an independent probability of Natech. Therefore, studies on Natech emergency plans and emergency evacuation routes should be actively conducted considering such high risk areas. The present study was conducted to demonstrate the feasibility of Natech risk assessment in South Korea through the RAPID-N. These findings can be used as a reference material to lay a foundation for Natech risk assessment and related policies in South Korea.

• Journal of the Korean Society of Safety
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• v.34 no.6
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• pp.13-21
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• 2019

Leakage accidents in businesses dealing with hazardous chemicals can have a great impact on the workers inside the workplace, as well as residents outside the workplace. In fact, there were cases where hazardous chemicals leaked from many businesses. As a result, the Chemicals Control Act(CCA) was enacted in 2015, the Ministry of Environment introduced an Off-site Risk Assessment(ORA). The purpose of the ORA is to secure safety from the installation of the design of the workplace facilities so that chemical accidents of hazardous chemical handling facilities do not cause human or physical damage outside the workplace. In general, the ORA qualitatively determines where a protected facility is within the scope of the accident scenario. However, elderly who belong to the sensitive group is more sensitive than the general group under the same chemical accident effect, and the extent of the damage is serious. According to data from the Korea National Statistic Office, the number of elderly people is expected to increase steadily. Therefore, a quantitative risk analysis considering the elderly is necessary as a result of a chemical accident. In this study, accident scenarios for 14 locations were set up to perform emergency evacuation due to toxic gas leakage of Cl₂(Chlorine) and HF(Hydrogen Fluoride), and the effects of exposure were analyzed based on the evacuation velocity difference of age 20s and 60s. The ALOHA(Areal Locations of Hazardous Atmospheres) program was used to calculate the concentration for assessing the effects. The time of exposure to toxic gas was calculated based on the time it took for the evacuation to run from the start point to the desired point and a methodology was devised that could be applied to the risk calculation. As a result of the study, the relative risk of the elderly, the sensitive group, needs to be determined.

• Journal of The Korea Institute of Healthcare Architecture
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• v.18 no.2
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• pp.45-54
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• 2012

The Act of Disability Discrimination and Rights Restriction was enacted in 2008 states that all services including cultural and artistic activities should be fair and easily accessible for disabled. The aim of this study was to determine how to improve the facilities and services for the disabled in Theater and provide complementary guidelines for amenities designed for people with disabled. The conclusions identified through this study are as follows: 1) It should be installed pedestrian safe passage so that visitors could access from the entrance of the ground to the seat in the theater. 2) Disabled seats install in a position to Emergency evacuation for people with disabilities, and it is recommended that general seats are placed side by side with Disabled seats. 3) It is analyzed services for the visually impaired and hearing impaired are very poor. Therefore assistive devices and human services should be provided to the visually impaired and hearing impaired. 4) People with disabilities can participate in the show as the performers, so it should be provided reasonable accommodations such as access to the stage.

• Journal of Advanced Marine Engineering and Technology
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• v.39 no.3
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• pp.312-317
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• 2015

Seafarers can confront to evacuate from the ship with many reasons such as collision, grounding and fire accident. It believes that evacuation time from ship is very important element in order to increase survival rate in the contingency circumstance, however narrow and complex structure of ship is one of obstacle element against prompt evacuation. Taking into consideration the unique structure of ship compared to the structure of other facilities, speed of fire propagation on board ship is faster than the same size of other type facilities. Therefore, measures to prompt evacuation are required. But it comes with the behavioral constraints of the crews and passengers of the nature of operating in a complex structure with narrow vessels. Therefore, in this study, we propose a formula to be analyzed by theoretical approach and simulation methods to improve the survival rate for the crew and passenger of the ship through the ship's structural modification. We analyzed the temperature rise and visibility which are the most influential effects on the life safety in the event of fire by using a three-dimensional analysis of sight-only program Fire Dynamic Simulator (FDS) as analytical tools.

• Proceedings of the KSR Conference
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• 2007.05a
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• pp.1163-1167
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• 2007

Many railway safety measures are carried out after Daegue subway fire accident. Such as replacement of train interior material, fire extinguish and toxic gas evacuation facilities, exercise on emergency response, setting up of national safety management system, and safety technology research. But these safety measures are not considered by system safety due to lack of risk and hazard information. In order to assess fire risk on system level, we proposed hazard events and causes classification for railway fire accident risk analysis.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.461-461
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• 2021

도림천 유역은 4개 자치구(관악, 구로, 동작, 영등포)에서 관리하고 있으며, 강우 발생 시 침수취약지역 맞춤형 행동 매뉴얼을 통해 운영된다. 그러나 여름철 집중강우 발생 시에는 도달시간이 짧고 수위가 급격히 상승하는 유역의 특성으로 하천 내 고립사고가 빈번히 발생하고 있다. 최근 10년('11년~'20년)간의 조사결과에 따르면 도림천 중·하류 구간에서 발생한 고립사고는 총 27회로 나타났다. 본 연구에서는 도림천 유역을 대상으로 도시홍수 예·경보 전달시설, 진입차단 시설, 그리고 고립 시 대피시설의 설치현황을 살펴보고 도시하천에 적합한 재난대피시설 운영 및 설치방안을 제안하고자 한다. 이는 짧은 시간에 수위가 급변하는 도시하천의 고립사고 최소화와 더불어 신속하고 안전한 하천시설운영 및 자치구 통합 맞춤형 행동 매뉴얼 개선에 기여하고자 한다.

• Journal of Korean Society of societal Security
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• v.3 no.1
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• pp.67-73
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• 2010

School is a place to be done the education of Disaster Prevention and to be established the function of Disaster Prevention and seismic performance to secure the safety of children as well as emergency evacuation facilities for local communities in case of disaster. To improve the ability of Earthquake Disaster Prevention for students and teachers schools have to put the Earthquake Disaster Prevention on the subjects, for an example ethics, social study, science and gym and make a plan to efficiently manage school disaster prevention facilities. Seismic retrofitting on school facilities have to be established with the method of construction for steel bracings and seismic shear walls choosing old architectures first which is not the design with the seismic performance considering educational environmental aspects, and reconstruction of old architectures to get the agreement of societies. Furthermore, there is great demand for the effective, efficient and systematic improvement of school facilities for the use of shelters to be disaster prevention facilities.

• Fire Science and Engineering
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• v.25 no.6
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• pp.98-103
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• 2011

Currently, domestic architecture has applied the building fire-fighting equipments to most buildings except conventional houses, villas and facilities, and so on. However, the use of fire-fighting equipments what are not working properly result in a human life and property damages consistently like a fire of Icheon warehouse facilities, Korea cold storage, the tragic incident of subway in Daegu and the recent issue of a fire in the high-rise efficiency apartment, etc. In this study, I'm trying to seek solutions by taking research on the actual condition of fire alarming system, fire escaping equipment, Indoor Fire Hydrant Installation.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2009.05b
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• pp.189-193
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• 2009

As large-scale buildings, skyscrapers, and multi-purpose buildings recently increase in numbers dramatically the internal space of such buildings becomes more and more large and complicated accordingly. The Multi-purpose buildings are increasing rapidly in number, and concerns over the evacuation process in case of fire emergency are also increasing. However, A controller who is responsible for visitor's safety makes a decision about measures for visitor safety in human based decision making process. Many potential accidents that are caused by human error lurk in results of the process. The accidents can be decreased by changing the decision making process from human-based into technology-based. Through this study, the way to improve current disasters prevention system is presented and it can also improve shelter inducement methods effectively. SICS(Spatial Information Control System) which is being studied in other research is used as the tool for improvement.