• International conference on construction engineering and project management
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• 2009.05a
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• pp.864-868
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• 2009

Fire safety management on any construction site should start with recognizing fire risks in the workplace, understanding the extent of the risks, and proper assessment of the controls necessary to reduce the risks. However, the most important step to prevent fire-related accidents on jobsites is the constant review and monitoring of processes and controls by all individuals involved. This study was conducted to analyze the effectiveness of using computer simulation as an addition to maps or floor plans in safety training and management. Simulex was used on a real project to model various egress routes and to identify potential problem areas of the evacuation strategy. This study highlights the efficacy of simulated emergency evacuation as a training tool that visually shows constantly altering means of egress.

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.2120-2124
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• 2008

In order to rise up the accuracy of evaluation of egress safety for train car and facilities, analysis of egress route, scenario and the prediction by variation of flow rate were conducted. According to analysis of egress scenario for train, the extra time should be added to the time from train to safety area when the distance between the train car floor level and the track level exists. In the result of hand calculation, the egress time was 123.1 s at flow rate 0.5, was 61.5 s at flow rate 1.0, and was 41 s at flow rate 0.5.

• Fire Science and Engineering
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• v.33 no.3
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• pp.84-90
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• 2019

In this study, a fire and evacuation inside an electronic equipment room in environmental energy facilities were conducted and evaluated using a numerical analysis method. In the fire simulation, the visual distance, temperature distribution, and CO concentration distribution were analyzed using FDS. Based on the results, the Pathfinder program, which is an evacuation simulation, was used to calculate the evacuation time of the occupants and derive an evacuation safety evaluation. As a result, the Available safe Egress time (ASET) of P-01 and P-05 was 203.3 and 398.6 s, respectively. For the Required safety Egress time (RSET) results, all evacuees were evacuated at all points and the safety of the evacuee was secured this simulation showed that the safety evaluation is based on the non - operation of the fire - fighting equipment to improve the safety, making it possible to secure better evacuation safety performance owing to the fire of other fire - fighting facilities.

• Fire Science and Engineering
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• v.22 no.3
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• pp.287-292
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• 2008

In this study, the evacuation training were performed in a high school building in Cheong-Ju and compared with the simulation program (Simulex). Also numerical analysis of room fire in school building was conducted by fire model (FDS, CFAST) and evaluated the available safe egress time for the safety assessment. As a result, the 8% of total egress persons were failed to escape at evacuation training and 40% of total egress persons were failed to escape at Simutex simulation. Simutex program was not reflected the real escape conditions, such as evacuation route, refuge place, etc.

• Fire Science and Engineering
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• v.3 no.2
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• pp.11-19
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• 1989

In this study, the independent variables are the floor plan configulation. The dependent variables are the occupant's egress behavior, especially spatial movement pattern, and life - safety performance of building. Fire events were simulated on single story of office building. Simulation run for allowable secaping thime(180 seconds) arbitrarily selected, and involved 48 occupants. The major findings Pre as follows. 1) Computer simulation model suggested in this study can be used as the Preoccupancy evaluation method of the life-safety performance for architectural design based on prediction of occupants' egress behavior in the levels of validity and sensitivity, 2) Sucess or failure in occupants' escape is determined by decreasing walking speed caused by jamming at exits or over crowded corridor, and increasing route length caused by running about in confusion at each subdivision and corridor. 3) In floor plan configuration which safe areas located at the extreme ends of the corridor, cellular floor planning have to be avoided preventing jamming and running about in confusion at overcrowded corridor.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2008.04a
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• pp.33-36
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• 2008

Recently with the increasing economics, many hish-rise and complicated building with new architecture features are constructed in Korea. These higher and bigger building have many difficulties of fire safety concerns, especially evacuation plan. In this paper, aims to present logical basis for forecasting egress behavior of occupants and systematized Egress-Prediction Model by analysing expectable decisive factors among influential factors each step until completing egress from perception of fire cues.

• Korean Journal of Construction Engineering and Management
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• v.19 no.3
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• pp.11-22
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• 2018

Existing efforts to reduce total egress time actually focused on reducing travel time. However, consideration to reduce perception time or response time was insufficient although the ratio of travel time is one-third of total egress time and situations which the safety cannot be ensured by only reducing travel time were aroused. Therefore, the concept of disaster information, which could reduce both perception time and response time got attention To analyze the effect of disaster information on occupant behaviour, this study identified a relationship between 10 major disaster information and 3 occupant behaviour factors in terms of reducing egress time. By referring the relationship, this study conducted an virtual egress experiment with survey on 4 cases, the elderly, intellectual disabled, hearing disabled and visual disabled, to identify disaster information which reduce total egress time effectively. Finally, by analyzing the experiment result, this study proposed the process of disaster information effect on occupant behaviour as complementing insufficient occupant behaviour to ensure the minimum level of safety and maximizing relatively high occupant behaviour to ensure enough level of safety. The results are expected to account for relationship between disaster information and occupant behaviour with more explanatory power in terms of egress time. With further studies of disaster information and group behaviour, these series of studies could provide basic references for disaster information and occupant behaviour.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.10 no.6
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• pp.253-260
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• 2015

In this study, using the FDS as the fire simulation and evacuation simulations of the Pathfinder, set the main control room of the building to the fire point fire safety assessment studies were carried out. At first the quantitative result such as distribution of visibility as time passing, distribution of temperature, distribution of CO density produced results using fire-simulation and evacuation-simulation was carried out based on the result that produced the final safety evaluation result as being calculated of evacuation time. As the risk increased with the distribution of visibility at the result of fire-simulation, evacuation-simulation was carried out using the result. Finally the result was made 127.9 sec that everyone could evacuate. The numerical results are analyzed in case of the places in the building required safe egress time for safety a as the analysis to be no more than available safe egress time was analyzed to be secured. The results of this safety evaluation represent that more smooth evacuation safety performance can be secured by linking the event of fire firefighting equipment as a result of simulating the worst conditions.

• Fire Science and Engineering
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• v.14 no.4
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• pp.17-22
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• 2000

For life safety design of shopping mall, we selected a shopping mall, and calculated the evacuation time of means of egress. It is calculated by two kind of evacuation method. One is the computer simulation model, EXODUS. The other is Japan's method. Study way is a model structure study, selecting real shopping mall and setting scenario, calculating the evacuating time. result of study, evaluation time is very high. Therefore we confirmed that the building of means of egress is not fit to evacuation more the capacity of setting population.

• Journal of the Korean Society of Safety
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• v.8 no.2
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• pp.72-77
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• 1993

Available Safe Egress Time(ASET) is the time available for occupants to evacuate safely In compartment fire, and It depends on the time of fire detection and hazardous conditions. The purpose of thls study Is to provide an analytical basis and experimental data for estimating the fire growth in compartments and the available safe egress time, and to compare the experimental data with those proposed equations. As a result, hazard order Is poison to CO, descent of smoke layer, poison to $CO_2$, burn to hot smoke layer, and lack of $O_2$, ASET is lengthened in this order. Also, The more fire load is increased, the more ASET is shorted.