• Journal of the Korean Society of Safety
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• v.26 no.3
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• pp.47-51
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• 2011

Work platform is temporary material that many workers use in construction field, but many workers construct and use the work platform without considering safety standards, workers who have not the knowledge of safety standards construct the work platform in weakness and use the work platform in unstable, According to the statistics in 2009, 1230 people were injured at the work platform. Among them, victims by falling account for about 77% and mostly lead to fatal injuries. we have studied and survey about the safety or danger of the work platform(set limits to duble scaffold) in construction field and about how many workers observe safety standards of the work platform. According to the result of this survey, 24%~100%(average : 68%) of the work platform in survey is not observe the safety standards.

• International conference on construction engineering and project management
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• 2024.07a
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• pp.653-657
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• 2024

Various facilities such as safety railings and safety nets are used to prevent safety accidents at construction sites. As construction progresses, additional safety facilities may need to be installed or existing facilities may be damaged, so continuous management is required. To manage safety facilities, it is best for safety managers to check them directly, but there are parts of the site that cannot be checked directly. This study proposes a method to identify the installation status of safety facilities using photogrammetry. A drone is used to take photos and a three-dimensional model is created using these photos. By reviewing the implemented model to determine whether safety facilities are installed, it is possible to secure the safety of construction sites.

• Journal of The Korea Institute of Healthcare Architecture
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• v.9 no.2
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• pp.43-50
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• 2003

This paper try to provide basic and universal concept of the architectural planning for the barrier-free environment. To accomplish this purpose this study has analyzed inductively the architectural requirements for all kinds of people with disabilities. The Analysis showed a safety, an accessibility and a distinguishment as the concept of architectural planning for the people with disabilities. Based on the findings of the study have been researched the general cases done for the barrier-free architectural environment. As the result, it has been proved that the design concept for the disabled person should be regarded as the basic concept of the general architectural planning.

• Journal of the Korean Institute of Landscape Architecture
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• v.51 no.5
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• pp.1-12
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• 2023

This study evaluated the overturning stability of portable tripod ladders used for high-altitude work such as tree management and pruning work in landscaping construction and management. Portable tripod ladders, which are included in general mobile or portable ladders frequently used in industrial sites, are supported in a triangular support structure, not a 4-point support like common A-type Ladders. In addition, since the working height is more than twice that of a mobile or portable ladder, the possibility of an overturning accident that threatens the safety of workers with a fall accident is high. Therefore, based on the overturning stability test specified in ANSI-ASC A14.7 and EN 131-Part 7, which are related standards for about 130 types of portable tripod ladders sold and used in Korea. An equation to calculate each moment according to working height was derived. Then, each calculated moment was compared to evaluate the safety factor for overturning and stability. As a result of the overturning stability evaluation according to each standard, when the provisions of EN 131-Part 7 were applied, portable tripod ladders with 8 steps in the rear direction and 6 steps or more in the side direction were evaluated as unstable against overturning, but according to ANSI-ASC A14.7 regulations. It was evaluated that the stability against overturning was secured in all directions and number of steps.

• Journal of the Korean Society of Safety
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• v.19 no.2
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• pp.69-74
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• 2004

This study is to suggest a performance assessment model for fire safety protection of office building 34 asessment elements were chosen by interviewing with experts, reviewing several codes and existing relevant models, assessment elements included in this model are comprised of five categories which are 'performace of protected area', 'performance of fire partition', 'safety performance of fire escape', 'performace of smoke control system' and 'performace of fire fighting equipment'. The weight of each element was computed by systematic approach like an AHP (analytical hierarchy process), which was conducted by experts who work in the field of fire protection. This model would be utilized as a part of assessment model for the overall performace of domestic office building.

• The Journal of Society for e-Business Studies
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• v.10 no.1
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• pp.121-134
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• 2005

The MANET has many problems in security despite of its many advantages such as supporting the mobility of nodes, independence of the fixed infrastructure, and quick network establishment. In particular, in establishing security, the traditional certification service has many difficult problems in applying to the MANET because of its safety, expandability, and availability. In this paper, a secure and effective distributed certification service method was proposed using the Secret Sharing scheme and the Threshold Digital Signature scheme in providing certification services in the MANET. In the proposed distributed certification service, certain nodes of relatively high safety among the mobile nodes consisting of the MANET, were set as privileged nodes, from which the process of issuing a certification started. The proposed scheme solved problem that the whole network security would be damaged by the intrusion to one node in the Centralized Architecture and the Hierarchical Architecture. And it decreased the risk of the exposure of the personal keys also in the Fully Distributed Architecture as the number of the nodes containing the partial confidential information of personal keys decreased. By the network simulation, the features and availability of the proposed scheme was evaluated and the relation between the system parameters was analyzed.

• Journal of the Korean Society of Safety
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• v.21 no.1 s.73
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• pp.133-140
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• 2006

According to Tokyo protocol which suggests the prevention of global environmental pollution, Korean government establishes the standard of architectural materials emission consistency with best effort to decrease the environmental pollution. But many current architectural materials which are used for constructing and remodeling buildings are composed of a variety of chemicals. These include stimuli bad for the residents' health and safety and harmful discharged air polluting substances such as volatile organic compounds(TVOCs) and formaldehyde(HCHO) that in tern include a variety of carcinogen substances. These discharged substances are also researched into inducing 'sick building syndrome' which induces headache, dizziness, vomiting and concentration failure among residents. But the standard of architectural materials according to the Korean apartment provision is limited to emission factors: HCHO and TVOCs. So the aim of this study is to present a standard of functional material's emission consistency about TVOCs including glues and paints, and a certification grade for green building by instituting a materials standard for green building which has consideration for the residents' safety.

• Journal of the Korea Safety Management & Science
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• v.14 no.1
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• pp.137-145
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• 2012

In the previous study, the construction guide line of IT infra-structure for a u-City was introduced. However, it is only concentrated on the components and construction procedure for provider-oriented and technology-oriented sensor networks. In this paper the architecture and building process of demander-oriented sensor networks for sustainable u-City service are proposed. In the paper it is described (1) the enhancement methods of the procedure that can be flexibly constructed according to the scale of the project, (2) the methods that can improve the structure from the wireless sensor network such as RFID/USN to the hybrid sensor network, and (3) the consideration factors for providing the sustainable u-City service.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.21 no.1
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• pp.23-32
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• 2009

The Purpose for this study was to analyze the evacuation behavior of a training facilities for young people in case of fire emergency. It is necessary to study for fire safety design of the training facilities. The study carried out two different simulations on the training facilities. The results were divided into two groups by using Simulex, FDS. By comparing those two different outputs, we were able to verify the problems of existing training facilities. The results have shown that there was a need for a greater structural design in these training facilities.

• Journal of the Korean Institute of Landscape Architecture
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• v.29 no.4
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• pp.44-52
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• 2001

This study performed factor analysis for 21 independent variables related to the effect of illumination and suggested the effect by multiple regression analysis on the relationship between the effect of illumination and the satisfaction of use of a dependent variable to find the effect of illumination in urban parks at night and the effect of illumination on the satisfaction of use. The results of this study are as follows; 1) Of the 21 independent variables used to study the effect of illumination in urban parks at night, the impact on safety and possibility of crime was highly. The effects of illumination by factor analysis were abstracted as effects of removing anxiety, securing safety, increasing use. 2) As a result of multiple regression analysis, independent variables influencing satisfaction of use in urban park were proved as effects of removing anxiety, securing safety, increasing identity, preparing atmosphere and increasing use. Also, the effect of securing safety was the most important factor; it showed a level of importance 2 times higher than the effect of removing anxiety, and 7.7 times higher than the effect of preparing atmosphere in relative contribution of the effect of illumination to satisfaction of use. 3) Of the effects of illumination influencing satisfaction of use in urban parks, the effect of securing safety and the effect of increasing visibility were more significant than the effects of removing anxiety, preparing atmosphere and increasing use. This fact means that personal safety an the identity of persons or facilities in the space of use should be considered with priority in planning or designing illumination. Also, it implies hat, for night use in urban parks, lightness of the space is required for general safety of use at parks, and proper illuminance on the activity in the space of use should be required. The subject parks of this study are 8 urban neighborhood parks. The model on the effect of illumination and the satisfaction of use depends on characteristics and conditions of location of he park and user class, so the subject parks and persons should be varied, and the difference by sex or ages should be suggested.