• 대한안전경영과학회지
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• 제25권4호
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• pp.67-72
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• 2023

Human and material damage can be reduced if the risk is evaluated by engineering analysis of fire combustion products, smoke concentration, and smoke movement speed in the event of a fire in apartment houses and officetels. In this study, a lot of research on related safety evaluation in the basement needs to be studied and reflected in design, so experimental research was conducted to analyze the flow of smoke through computer simulation and provide analysis data through evacuation safety evaluation. First of all, the five-story underground parking lot subject to simulation has a large floor area, which is advantageous for improving evacuation safety performance, but it uses temperature detectors to increase detection time and fire spread speed. Second, it was analyzed that the evacuation time at all evacuation ports did not exceed the evacuation time, and as the time from the start of evacuation to the evacuation time was 216.9% compared to the travel time, it was evaluated that the safety performance of the evacuation was secured. Third, the above simulation results are a comprehensive safety evaluation based on the non-operation of fire extinguishing facilities in the fire room to increase safety, which means that smoother evacuation safety performance can be secured by linking fire extinguishing facilities.

• 한국주거학회논문집
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• 제23권5호
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• pp.1-8
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• 2012

Recently, there have been frequent occurrence of the damage to lives and properties due to the torrential rain caused by climate change. In consideration of the current situations in which the underlying data related to flooding are lacking, this study conducted to build up the basic data on the flooded areas and suggested methods to secure the evacuation routes that can be accessible to evacuation facilities in the residential buildings. Methods of the study are as follows. First, We calculated the flood risk grades of residential buildings based on elevations, considering the flooding characteristics of the flooded areas in Buk-gu, Daegu. Second, We constructed baseline data on the evacuation routes through site investigation and reviewed of drawing using Arc GIS to identify vulnerability to access to the evacuation facilities, targeting the residential buildings. Third, We carried out the proximity analysis through a near analysis of analysis functions in ARC GIS. Forth, We deduced 115 residential buildings in which access to evacuation facilities is considered to be difficult based on the analysis results. Finally, We proposed extension of a blind alley as a means for achieving connectivity to evacuation facilities. And to evaluate the alternatives presented, we reconstructed route data. As a result, about 53% improvement was identified through the proximity analysis.

• 대한안전경영과학회지
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• 제25권2호
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• pp.29-38
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• 2023

Social welfare facilities are used by a wide range of local residents, including vulnerable populations such as the elderly, children, and people with disabilities. During emergencies like fires, confusion can arise as these individuals try to evacuate. Evacuation simulation results have shown that utilizing evacuation systems based on specific evacuation scenarios can significantly decrease the time required for evacuation compared to general evacuation procedures. By anticipating potential fires based on changes in social and facility environments, appropriate evacuation scenarios can be developed and applied to evacuation systems, thus contributing to the safety and security of individuals during emergencies. In conclusion, for social welfare facilities that serve a large number of people, it is necessary to expand the focus on performance-based design depending on the size of the facility, and to continuously develop and train for appropriate evacuation scenarios that align with changing facility environments.

• 한국산학기술학회논문지
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• 제13권5호
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• pp.2374-2381
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• 2012

본 연구는 복도와 계단의 폭 변화에 따른 피난밀도 변화가 피난행태에 미치는 영향을 분석하고, 화재에 대한 불안감에 대해 영향을 미치는 변인들의 관계를 분석하는 것을 그 목적으로 하고 있다. 이를 위하여 대학교육시설재실자(대학생)를 대상으로 복도 및 계단의 폭을 조정하여 밀도변화에 따른 피난실험을 실시하고, 피난실험 후 설문조사를 통하여 피난밀도의 변화가 피난행태 및 화재에 대한 불안감에 미치는 주요요인들의 관계를 분석하였다. 연구결과는 다음과 같다. 첫째, 피난행태에 영향을 미치는 변수들을 대상으로 요인분석을 실시한 결과, 리더십(결단력, 설득력, 통솔력, 자신감), 친화력(책임감, 사교성, 의욕적, 신중한) 그리고 독단적 성격(건방, 자기중심적, 경박, 무분별)으로 구분되는 심리적 요인이 중요하게 대두되며, 출구위치, 소방설비, 피난로 축소 등으로 유형화되는 환경적 요인, 그리고 개인적 요인(연령, 사용기간)이 추출되었다. 둘째, 화재에 대한 불안감에 영향을 미치는 가장 중요한 요인은 화재대피방법, 건축물친숙도 및 친화적 성격과 높은 관련성을 지니고 있으며, 일반인들이 잘 알지 못하는 소방설비에 친숙도, 성별 및 연령 등의 개인적 요인, 독단적 성격, 리더적 성격 등은 부차적인 영향을 미치고 있는 것으로 나타나고 있다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.166-167
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• 2021

The elderly population in Korea is constantly increasing. As the number of Long-Term Care hospitals increases, many fires have occurred in related facilities. In this facilities, due to the characteristics of the occupants, self-evacuation is difficult, resulting in a number of casualties. It is necessary to Life safety design that reflects the characteristics of the occupants of domestic long-term hospitals. The study attempted to suggest improvements to the standards of evacuation behavior model for occupants of domestic and overseas long-term care hospitals. As a result of the study, patients living in long-term hospitals have a problem that is difficult to evacuate on their own. It is judged that there is a need to present an evacuation behavior model database by setting evacuation priorities and evacuation plans. In addition, it is necessary to more the design factors that affect the evacuation model as well as the characteristics of the occupants of the long-term care hospital.

• 한국측량학회지
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• 제37권5호
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• pp.303-313
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• 2019

After a disaster happens in urban areas, many people need support for a quick evacuation. This work aims to develop a method for the calculation of the most feasible evacuation route inside buildings. In the methodology we simplify the geometry of the structural and non structural elements from the BIM (Building Information Modeling) to store them in a spatial database which follows standards to support vector data. Then, we apply the multicriteria analysis with the allocation of prioritization values and weight factors validated through the AHP (Analytic Hierarchy Process), in order to obtain the Importance Index S(n) of the elements. The criteria consider security conditions and distribution of the building's facilities. The S(n) is included as additional heuristic data for the calculation of the evacuation route through an algorithm developed as a variant of the $A^*$ pathfinding, The experimental results in the simulation of evacuation scenarios for vulnerable people in healthy physical conditions and for the elderly group, shown that the conditions about the wide of routes, restricted areas, vulnerable elements, floor roughness and location of facilities in the building applied in the multicriteria analysis has a high influence on the processing of the developed variant of $A^*$ algorithm. The criteria modify the evacuation route, because they considers as the most feasible route, the safest instead of the shortest, for the simulation of evacuation scenarios for people in healthy physical conditions. Likewise, they consider the route with the location of facilities for the movement of the elderly like the most feasible in the simulation of evacuation route for the transit of the elderly group. These results are important for the assessment of the decision makers to select between the shortest or safest route like the feasible for search and rescue activities.

• 대한안전경영과학회지
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• 제22권3호
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• pp.43-51
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• 2020

This study analyzed the appropriate placement method by floor for evacuating all occupants during the nighttime through evacuation simulation. The analysis results are as follows. First, when non-self evacuating patients were placed on the first floor, 266 patients and 6 workers were found to be evacuated after 460 seconds. This result shows that it is meaningful to place non-self evacuating patients on the lower floor with a time that is faster than 540 seconds, which is an evaluation criterion set using life Safety standards for human. This result is a time faster than the evaluation criteria of 540 seconds, which is set using the life safety standards, and it can be confirmed that it is meaningful to place non-self evacuating patients on the lower floor. Next, as a result of placing non-self evacuating patients from the first floor to the fourth floor, it was found that evacuation of all occupants required 460 seconds for the first floor, 834 seconds for the second floor, 1,508 seconds for the third floor, and 1,915 seconds for the fourth floor. These results indicate that the placement of non-self evacuating patients on the rest of the floors, except for the first floor, can lead to dangerous results in excess of 540 seconds, which is a flashover time. As a result, it is necessary to place non-self evacuating patients on a lower floor for safe evacuation. The study has limitations except for comparative analysis of changes in evacuation time due to changes in the number of workers at eldery care hospitals and situations in which fire-fighting facilities such as sprinkler facilities operated. It is necessary to study the evacuation time linked to the operation of the fire-fighting facilities and the evacuation time according to the change in the number of workers in the future.

• 한국건축시공학회지
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• 제19권5호
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• pp.431-438
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• 2019

본 연구에서는 비상대피시설의 출입구 개수 산정의 적정성을 평가하고자 하였다. 현행 민 관 군 대피시설의 기준은 대피 인원이 대피를 완료한 상황을 가정하여 적정 건축면적을 보유하도록 하는 정태적 기준만을 제시하고 있다. 그러나 실제 대피상황을 감안한다면 건축면적과 같은 정태적 기준보다는 출입구 개수, 대피인원, 대피시간 등과 같은 동태적 기준을 동시에 고려할 필요가 있다. 이를 위해 동태적 기준이 대피시간에 어떠한 영향을 주는지 대피 시뮬레이션을 통해 매개변수 연구와 회귀분석을 실시하였다. 그 결과를 대피시간에 대한 추정 모델을 개발하고 대피인원대비 적정 출입구 개수를 제시하였다.

• 교육시설 논문지
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• 제24권2호
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• pp.3-10
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• 2017

This study compared evacuation effectiveness between the conventional school auditorium plan and a suggested hypothetical plan that was generated by a mathematical model, which is commonly applied in the field of industrial engineering. Recent school buildings became much more complicated in floor planning due to new social needs and modern curriculum than the old days. Nevertheless, architect's approach to floor composition in terms of fire emergency evacuation planning, still has no relation to optimized effective but relies more on an conventional school planning. Therefore, since school buildings are much more likely to be exposed to any fire related events than any other building types, emergency exit effectiveness based on spatial composition has to be seriously evaluated with a scientific method. The algorithm, which acquires the number of persons in each spatial type(node) per floor and the minimum physical distance between spatial types(arc), can propose the most optimized spatial layout per floor regarding emergency evacuation event. Consequently, this study evaluated school's fire exit effectiveness focusing on auditorium area with the scientific tool and suggested the most reliable spatial layout regarding possibile emergency evacuation event.

• 교육시설 논문지
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• 제23권3호
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• pp.3-10
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• 2016

This study compared evacuation effectiveness between the conventional school floor plan and a suggested hypothetical floor plan that was generated by a mathematical model that is commonly applied in the field of industrial engineering. Recent school buildings became much more complicated in floor planning due to the new educational system and modern curriculum than the old days. Nevertheless, architect's approach to floor composition in terms of fire emergency evacuation planning, still has no relation to optimized effective but relies more on a conventional school planning. Therefore, since elementary school buildings are much more likely to be exposed to any fire related events than middle school or high-school, emergency exit effectiveness based on spatial composition has to be seriously evaluated with a scientific method. The algorithm, which acquires the number of persons in each spatial type (node) per floor and the minimum physical distance between spatial types (arc), can propose the most optimized spatial compositing per floor regarding emergency evacuation event. Consequently, this study evaluated elementary school's fire exit effectiveness with the scientific tool and suggested the most reliable spatial composition per floor regarding possibile emergency evacuation event.