• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.5
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• pp.2374-2381
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• 2012

The aims of this study are to verify the effecting factors in evacuation behavior under the corridor and stair width variation in evacuation experiments at university education facilities. To achieve these purposes, the present conditions of university education facilities were analyzed, and the evacuation experiment settings were established under different width of corridor and stairs. After the experiments, we asked the effecting variables to the evacuation behaviors under the variation of corridor, stair width and density of evacuee. The results of this study are as follows ; First, we found 3 main factors which affecting the evacuation behaviors ; environmental factors on building conditions, psychological factors on evacuee's characteristics and personal factors on evacuee's physical conditions. Second, the environmental factors such as the location of stairs for evacuation, recognition of wayfinding in fire condition are mainly affects the evacuation behaviors, but evacuee behaviors have little relations with fire extinguishing facilities and personality.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.10
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• pp.5221-5229
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• 2013

This study focused on the construction of Korean Evacuation load Model for reflecting Korean Evacuation behaviors. For the purposes, several evacuation experiments are executed according to the ages, and the level and types of disabilities. We accumulated the data on the evacuation velocity and behavior patterns according the ages, and the level and types of disabilities. From these results, we proposed the Korean Evacuation Load Model and compared with several popular evacuation simulation model such SIMULEX. As results of these studies, we found the possibility of construction of Korean Evacuation Simulation System based on the Korean Evacuation Model including the evacuation velocity and human behaviors.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.2
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• pp.470-478
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• 2016

This study focused on the emergency evacuation guidelines considering the behaviors of people with disabilities in Korea. For these purposes, this study reviewed the movement behaviors of people with disability and the treatment characteristics of emergency and hazards in United States. The results are as follows. First, it is necessary to suggest establishment requirements and building design guidelines considering the behaviors of inhabitants and the occupant load in social welfare facility for people with disabilities. Second, it is important to establish disaster preparedness and evacuation planning in emergency and hazards reflecting the movement behaviors of people with disabilities in national organizations and institutions on disability. Third, periodical emergency and fire drills are necessary for people with disabilities and should be managed considering the impaired prototypes, evacuation aids and service animals.

• Journal of Information Processing Systems
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• v.16 no.6
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• pp.1309-1323
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• 2020

Crowd evacuation simulation is an important research issue for designing reasonable building layouts and planning more effective evacuation routes. The social force model (SFM) is an important pedestrian movement model, and is widely used in crowd evacuation simulations. The model can effectively simulate crowd evacuation behaviors in a simple scene, but for a multi-obstacle scene, the model could result in some undesirable problems, such as pedestrian evacuation trajectory oscillation, pedestrian stagnation and poor evacuation routing. This paper analyzes the causes of these problems and proposes an improved SFM for complex multi-obstacle scenes. The new model adds navigation points and walking shortest route principles to the SFM. Based on the proposed model, a crowd evacuation simulation system is developed, and the crowd evacuation simulation was carried out in various scenes, including some with simple obstacles, as well as those with multi-obstacles. Experiments show that the pedestrians in the proposed model can effectively bypass obstacles and plan reasonable evacuation routes.

• Korean Journal of Construction Engineering and Management
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• v.14 no.6
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• pp.49-60
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• 2013

Evacuation process has been considered as one of the most important elements to be managed in public facilities. Although the importance is highlighted through numerous literatures, disaster evacuation planning, particularly fire accidents, faces a number of human behavior related limitations for a similar application to different types of facilities/occupants. To overcome the obstacles including complexity in human behaviors, a number of simulation techniques with limited consideration on human behaviors are utilized to predict foreseeable problems in evacuation process. Therefore, this research aims to propose system dynamics models incorporating human behaviors considering different types of occupants under disaster evacuation events. Analysis on emergent human behaviors such as group forming and interactions under urgent situation are conducted based on the main stream theories in social science field. The results suggest the influences of human behavior factors including cooperative intention, information sharing, and mobility change to evacuation behavior. The implications are expected to provide safety consideration at planning/designing phase of buildings and help facility safety managers for evacuation planning with more realistic management approaches.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.17 no.1
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• pp.31-41
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• 2018

This study aims to analyze region-based pedestrian evacuation behaviors and information offering effect using Social Force Model, which is micro simulation. All pedestrians were assumed to move to shelters through pedestrian roads according to guidance information at emergency situations, and the pedestrians were classified into adults and the handicapped. According to the results of the road network analysis and simulation analysis, the shelters to which pedestrians can move within the shortest time from each zone were selected as optimum shelters. From this study, the analysis showed that the information provision effects are informative even though total evacuation time increases due to the increase of pedestrian conflict. This study can be used as baseline data for urban area's pedestrian disaster prevention plans.

• Nuclear Engineering and Technology
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• v.53 no.3
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• pp.825-832
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• 2021

A simulation-based approach is proposed to study the protective actions taken by residents during nuclear emergencies using cognitive findings. Human perception-based behaviors are not heavily incorporated in the evacuation study for nuclear emergencies despite their known importance. This study proposes a generic framework of perception-based behavior simulation, in accordance with the ecological concept of affordance theory and a formal representation of affordance-based finite state automata. Based on the generic framework, a simulation model is developed to allow an evacuee to perceive available actions and execute one of them according to Newton's laws of motion. The case of a shadow evacuation under nuclear emergency is utilized to demonstrate the applicability of the proposed framework. The illustrated planning algorithm enables residents to compute not only prior knowledge of the environmental map, but also the perception of dynamic surroundings, using widely observed heuristics. The simulation results show that the temporal and spatial dynamics of the evacuation behaviors can be analyzed based on individual perception of circumstances, while utilizing the findings in cognitive science under unavoidable data restriction of nuclear emergencies. The perception-based analysis of the proposed framework is expected to enhance nuclear safety technology by complementing macroscopic analyses for advanced protective measures.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.5
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• pp.1319-1327
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• 2008

There has been a lot of research on the creation of emergency evacuation simulators for analyzing the evacuation behaviors. However, it is remarkable that there are very few research on the characteristic of the behavior pattern in crowing, especially the evacuation time delay caused by the collisions and falling-downs, etc. In addition, it is necessary to point out the lack of the research on specifying the location where the collisions and the falling-downs take places. This research aims at creating an emergency evacuation simulator which takes the characteristic of the behavior pattern in crowing - collisions, falling downs, etc - into account. We are also hoping that it will be possible to provide more accurate and useful data ffr emergency evacuation system design through using this simulator.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.1
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• pp.553-561
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• 2021

The purposes of this study are to propose evacuation recommendations through evacuation model considering occupancy load model in child care center with disabilities. To achieve these purposes, the survey on the occupancy load and egress model and evacuation experiments have carried out, and evacuation occupancy load model for child care center with disabilities are suggested. The results of this study are as follows : (1) The evacuation plan for children with disabilities are necessary special considerations according the type and levels of disability, and various egress means and method for children in child care center with disabilities conditions. (2) The evacuation occupancy loads are different with non-impaired children and evacuation occupancy loads and evacuation corridors width are necessary considering impaired children's evacuation behaviors. (3) The temporal evacuation area(refuge area) is essential for children with disability who are impossible vertical evacuation such as impaired children using wheelchair and cerebral palsy.

• Fire Science and Engineering
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• v.25 no.1
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• pp.19-26
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• 2011

Korea is rapidly becoming an aging society. As a basic research on increasing evacuation safety design at silver facilities, the study was conducted in consideration of different foot's pace according to the number of seniors and their locations in a crowding of ordinary people and seniors all together. When the seniors were located at the front, the pace reduced to 0.81m/s on average. With 10 seniors which covered 50% of the crowd, the pace decreased to 0.85m/s. It is true that Korea has no existing researches on evacuation behaviour, and functions mentioned in its evacuation safety design is lack of practicality. Therefore, it is certainly necessary to secure any data of the evacuation behavior through various studies on seniors' evacuation behaviors.