• The Transactions of the Korean Institute of Electrical Engineers P
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• v.66 no.2
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• pp.88-93
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• 2017

Thermal power plants play an important role in the country's power supply, but often violate the Industrial Safety and Health Act due to lack of safety awareness about the incompatibility of electrical safety and safety facilities. In this study, safety diagnosis was performed for each of the five major thermal power plants in Korea. For the 18 sites including coal, LNG, and power plants, we investigate the main violations of Article 327 and conduct intensive analysis on repetitive electrical safety violations to propose preventive measures that meet the characteristics of the power plant.

• Journal of The Korea Institute of Healthcare Architecture
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• v.21 no.1
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• pp.57-66
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• 2015

Purpose : The guidelines of establishing convenience facilities for the handicapped have not consistently been provided to the identical criteria in walking facilities. Thus, transportation poor had difficulties in walking environment. Method : This study aims to suggest the practical direction of guidelines of establishing tactile walking surface indicators. To do this, this study examines the problems of the current guidelines for establishing facilities, and then analyzes international criteria, with comparing criteria used in German. Therefore, findings from those analyses can provide the secure and convenient environment for walking to transportation users, in particular blind and vision-impaired people, the handicapped, the child, and the elderly and the weak. Results : For the improvement of tactile walking surface indicators, the clear criteria of establishing tactile walking surface indicators is proposed, considering the characteristics of walking environment. Then, the sample items corresponding to the various situations need to be exemplified. To provide more secure environment walking for transportation poor, the establishing criteria partially adopted ideas from Universal Design also need to be developed. Implication : The proposed detail drawing of tactile walking surface indicators need to be tested by transportation users due to high safety in walking circumstance, and also the guidelines of continuously maintaining tactile walking surface indicators also needs to be studied.

• Journal of Navigation and Port Research
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• v.46 no.3
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• pp.191-202
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• 2022

The purpose of this study was to investigate and analyze the perceptions of passengers on various topics related to passenger ship operation, by targeting the passengers (passenger ship consumers) at coastal passenger terminals in three regions, Incheon, Mokpo, and Tongyeong, where many coastal passenger ships operate in Korea. The survey period was October 1-October 11, 2019, just before the outbreak of COVID-19, and the number of samples was 277. The analysis was divided into two elements. Results of the analysis show that, for items islanders as well as the general public did not respond to more than 50% positively, a more in-depth review of policies and fare policies for transportation-disabled facilities through comprehensive fare evaluation such as the excellence of transportation-disabled facilities, the appropriateness of fares, and the appropriateness of fare guidance are necessary. It is expected that this study will contribute to the preparation for re-opening after COVID-19, as well as contribute to public transportation policy.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.06a
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• pp.365-366
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• 2022

This study investigated and analyzed the perceptions of passengers on various topics related to passenger ship operation by targeting the passengers (passenger ship consumers) at the coastal passenger terminals in three regions, Incheon, Mokpo, and Tongyeong, where many coastal passenger ships operate in Korea. . The survey period was from October 1 to October 11, 2019, just before the outbreak of Corona 19, and the number of samples was 277 The analysis was divided into two elements. As a result of the analysis, for items that both islanders and the general public did not respond to more than 50% positively, a more in-depth review of policies and fare policies for transportation-disabled facilities through comprehensive fare evaluation such as the excellence of transportation-disabled facilities, the appropriateness of fares, and the appropriateness of fare guidance. was found to be necessary. It is expected that this study will be able to prepare for re-opening after COVID-19 and be used in public transportation policy.

• Journal of the Korea Safety Management & Science
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• v.14 no.3
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• pp.67-75
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• 2012

Because recently(July 14, 2011) fire occurred in the engine room of a moving taxi under Namsan Tunnel 1, 51 vehicles' driver and more than 250 passengers in the road tunnel were urgently evacuated with abandoned vehicles. Vehicle fires in Namsan Tunnel that day, Sufferers struggled to escape quickly difficult to escape the two-way by abandoned vehicles on the road and to fear many casualties by using vehicle fuel and combustible interior and the driver who is ignorant of vehicle accident continuous entered in the road tunnel had accessibility the site of fire department was more difficult. In this study, It is to investigate structure and basic materials, such as fire extinguish equipment and facilities for damage prevention and to analyze the problems and to plan improvement method of fire extinguish equipment, facilities for damage prevention and transportation facilities(Large traffic signs, Breaker, etc.) on the Namsan Tunnel that in the long-term plan is prepared to strengthen for accessibility of the site of fire department in case of Vehicle's fire.

• The Journal of the Convergence on Culture Technology
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• v.10 no.1
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• pp.507-516
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• 2024

Through the use and development of underground spaces, subways have become a representative means of transportation in the city center. Due to the extension of subway lines and the increase in the number of subway users, there is a risk that safety for evacuating human lives in case of fire will not be secured. Therefore, this study tried to identify citizens' perceptions of evacuation facilities through questionnaires and find alternatives. An online survey of 115 subway passengers was conducted to learn about citizens' awareness of subway evacuation facilities. As a result of the survey, awareness of evacuation facilities was high in the order of guidance lights, life-saving devices, emergency lights and portable lights, special evacuation stairs, and evacuation stairs. In addition, the majority of the respondents said they were not well aware of evacuation facilities, and people's indifference was the most common cause. As a solution to the lack of awareness, responses to active advertising and promotion, education and experience activities were the highest.

• Journal of the Korean Society of Safety
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• v.30 no.6
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• pp.156-163
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• 2015

The number of the lifts installed and used in Korea totals up to 526,676 units as of the end of December 2014, due to the development and urbanization of this country. Since the lift is one of the convenience facilities and especially a kind of essential transportation facilities used by a majority of passengers everyday, it is necessarily required to manage the lift safety. Therefore, this study aims to determine the 5 factors(kinds of lifts, ages of victims, causes of accidents, seasons in accidents, usages of buildings) affecting the types(caught in, trip over, falling, collision) and the injury levels(death, serious injury, minor injury) of the lift accidents based on the analysis of the total victims of 1,514 people due to the 1,146 accidents which have occurred for the past 15 years, and to find the frequency and ratio of each factor in the accidents, and to make a correlation among the factors. As the result of the analysis, it shows that there exists a statistically significant correlation among the factors.

• Journal of the Korea Safety Management & Science
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• v.5 no.1
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• pp.13-31
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• 2003

This provided a basic frame to analyze the investment effect on the road, railroad, airport and port as a national dimension but it still has a limitation to analyze the specific economic and financial validities to consider the characteristics of the traffic facilities within the area. Conclusively, the aims of this study provide the reasonable evaluation guidelines effectively to the local automatic groups, especially Chungju in the frame of the present evaluation guidelines. We provide the adaptive alternatives on the present systems which are difficult to adapt to the present investment evaluation guidelines; the estimation method of the social economic index and the estimation method of the traffic demand. Additionally, we discuss the research method of the passage actual state for a reasonable estimation of the traffic demand. The result of this study will be activated for the validity check and construction plan of the reasonable traffic investment plan of Chungju city.

• Journal of Korean Society of Transportation
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• v.24 no.4 s.90
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• pp.55-65
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• 2006

The ratio of Pedestrians in traffic accident fatality takes up 43% in Korea, which is 2.5 times as much as OECD's average. The traffic accidents features by road type shows that the fatality of the national highway posts the highest due to the accidents of pedestrians. Accordingly, the establishment of safety facilities for pedestrians is expected to increase on the rural roads for the prevention of pedestrian accidents. However, studies on pedestrians have been mainly focused on urban intersections. In Particular, studies on estimating the effectiveness of safety features for pedestrians are very poor. Thus, in this study. the Pedestrian accident probability model on four lane national highway was developed by using logit model. Also, this study analyzed and proposed the effect of facilities as a relative risk by using an odds ratio. As a result of the analysis, the Improvement of sight distance, installing sidewalks and lightings were proven effective alternatives for reducing the pedestrian accidents.

• Journal of the Korean Operations Research and Management Science Society
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• v.31 no.1
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• pp.91-103
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• 2006

Given a bill of materials (BOM) tree T labeled by the breadth first search (BFS) order from node 0 to node n and a general network ${\Im}=(V,A)$, where V={1,2,...,m} is the set of production facilities and A is the set of arcs representing transportation links between any of two facilities, we assume that each node of T stands for not only a component. but also a production stage which is a possible stocking point and operates under a periodic review base-stock policy, We also assume that the random demand which can be achieved by a suitable service level only occurs at the root node 0 of T and has a normal distribution $N({\mu},{\sigma}^2)$. Then our integrated model of facility location problems and safety stock optimization problem (FLP&SSOP) is to identify both the facility locations at which partitioned subtrees of T are produced and the optimal assignment of safety stocks so that the sum of production cost, inventory holding cost, and transportation cost is minimized while meeting the pre-specified service level for the final product. In this paper, we first formulate (FLP&SSOP) as a nonlinear integer programming model and show that it can be reformulated as a 0-1 linear integer programming model with an exponential number of decision variables. We then show that the linear programming relaxation of the reformulated model has an integrality property which guarantees that it can be optimally solved by a column generation method.