이 연구에서는 사장교 및 현수교에 부착된 지진가속도계측기를 활용하여 교량의 안전성을 긴급하게 평가할 수 있는 기법을 제안한다. 실측된 지진가속도계측기의 상시 응답을 이용하여 구조해석 모델의 고유주파수와 비교를 통해 최대한 유사한 동적특성을 갖도록 모델링을 개선한다. 설계지진에 대한 지진해석을 수행하여 지진가속도계측기 설치 위치별 최대 변위를 도출하며, 도출된 변위는 사전에 관리기준치로서 시스템에 기 입력된다. 지진발생 시 실시간으로 측정된 가속도 시간이력을 필터링 후 2중적분을 통해 변위시간이력으로 변환한 뒤 최대 변위를 추출한다. 최종적으로 시스템에 기 입력된 관리기준치와 추출된 변위와의 비교를 통해 안전성을 평가한다. 경주지진 시 기록된 데이터를 활용한 12개 특수교량의 긴급 안전성평가 수행을 통해 제안된 방법의 적용성을 확인한다.

Purpose - This thesis is to develop a management plan and checklist by analyzing the prevention of accidents in advance by presenting the management plan for the major causes of railway accidents. Research design, data and methodology - In recent 5 years, we have analyzed the cases of railway accident, presented the management plan for the accident, and made a practical safety checklist focusing on the main measures according to the management plan. Results - The analysis of the cases of near-railway accidents suggests more concrete and practical safety management measures because the similar accidents are continuously occurring due to formal safety management. Conclusions - It is more valuable to apply to the adjacent construction of the railway line by creating a detailed checklist based on cases rather than the existing checklist. This study is written only as a human factor. For future real - time safety management, it is necessary to study more precisely cause analysis and safety equipment as a big data - based safety control system for more systematic safety management.

Engineered nanomaterials (ENMs) can be released to humans and the environment through the generation of waste containing engineered nanomaterials (WCNMs) and the use and disposal of nano-products. Nanoparticles can also be introduced intentionally or unintentionally into waste streams. This study examined WCNMs in domestic industries, and target nanomaterials, such as silicon dioxide, titanium oxide, zinc oxide, nano silver, and carbon nanotubes (CNTs), were selected. We tested 48 samples, such as dust, sludge, ash, and by-products from manufacturing facilities and waste treatment facilities. We analyzed leaching and content concentrations for heavy metals and hazardous constituents of the waste. Chemical compositions were also measured by XRD and XRF, and the unique properties of nano-waste were identified by using a particle size distribution analyzer and TEM. The dust and sludge generated from manufacturing facilities and the use of nanomaterials showed higher concentrations of metals such as lead, arsenic, chromium, barium, and zinc. Oiled cloths from facilities using nano silver revealed high concentrations of copper, and the leaching concentrations of copper and lead in fly ash were higher than those in bottom ash. In XRF measurements at the facilities, we detected compounds such as silicon dioxide, sulfur trioxide, calcium oxide, titanium dioxide, and zinc oxide. We found several chemicals such as calcium oxide and silicon dioxide in the bottom ash of waste incinerators.

The number of structures that make up the domestic social infrastructure has increased with the development of the national industry, and the social demand for safety due to the aging of structures has also increased. Accordingly, the law stipulating safety and maintenance management for major structures in the country has been revised and it has been implemented since this year. In this study, we will introduce changes to the safety and maintenance system for public structures under the law, analyze the results of inspection and diagnosis of public structures, and consider the status of safety and maintenance.

The purpose of the safety inspection is to identify the cause of the damage, which is the cause of the safety and performance degradation of the structures, to identify the cause of the damage, and to suggest appropriate repair and strengthening methods. In the traditional safety inspection procedure, the inspection items are selected and the survey contents are recorded in the field book at the time of the field survey. It is not easy to accumulate data and analyze these data as a single project. In this paper, we analyze the problems of the existing facility inspection procedures and conducted studies to build two-way facility safety management system for shortening the processing time and convenience of increasing the efficiency of field work and reporting.

Purpose - In this study, the safety related tasks for low cost carriers’ were examined and measures to improve them were suggested. As the air demand increases rapidly, number of passenger has mushroomed in Korea and in order to keep with the demand low cost carriers have played a role. However, low cost carriers’ safety related tasks are not reliable level so far. Thus, in this study, the low cost carriers’ current situations in terms of safety are investigated, especially regarding how well the ICAO’s new safety policies are applied. Research design, data, and methodology - The results of the Ministry of Land, Infrastructure and Transportation’ investigation are introduced and field study results are analysed. Current status of retaining experts, staffs, administrators in terms of aviation safety tasks of low cost carriers is compared to those of major airliner and low cost carriers’ aviation safety culture is also analyzed by examining the systems and questioning staffs. Especially the culture regarding aviation safety is very important because the culture surrounding the safety tasks plays a major role in every respect of conducting the tasks. Results – Overall the current status of low cost carriers’ aviation safety tasks is below standard. Especially retaining experts and staffs is basically below the required level. Also, system and organization to conduct safety tasks are not satisfactory. In particular, aviation safety culture is not settled to operate appropriately. Conclusions - The International Civil Aviation Organization (ICAO) and member states are continuing to launch new safety policies in response to the surging demand for air travel worldwide. The most urgent and important issue among the various safety policies is to reduce air accidents. In order to reduce the number of accidents, ICAO decided to reduce the number of accidents by using the Reactive Safety Management. ICAO has to ensure that each member country can implement proactive safety management for aviation safety. A safety management system (Safety Management System) is a system in which each member state implements a fulfillment standard. The current situation and problems of the safety management system for each airline are suggested and proposed for improvements.

In spite of importance of safety issues in community sport, little concerns have been paid to the sport safety policy. Governing bodies and individuals involved with the facility management have a responsibility to manage the risks at acceptable levels. For sports injury prevention interventions, the safety policy of sport facilities should be made to provide a structured framework which can be implemented at community sport. Hence, the current study is to identify the safety issues and to generate the policies that assist to conduct the systematic safety management at sports facilities. For this, the current study analyzed two cases from Japan and Germany. The study reviewed multiple pieces of literature including journal publications, political reports, and media coverage. Through review, the study analyzed the organizational structure, legal systems, and political stance of the safety management of sport facilities in Japan and Germany. The results proposed the following issues. First, law needs to be enacted to establish the control tower where has a responsibility to develop the safety manual and system. Second, local organizations need to be established to educate individuals working in sport facilities and inspect the facilities. Further political issues were discussed for safety management in Korea sport facilities.

The Integrated Water Infrastructures Safety Management Platform(WINS+) provides safety information of water infrastructures such as dams, weirs, bridges, cut slopes, retaining walls and levees designated as the first class infrastructures to be maintained according to the nations’s safety law. The WINS+ is incorporated with a computerized Standard Operating Procedure (SOP) system that provides crisis warning level (green/blue/yellow/orange/red) to central and individual disaster response managers of waterside structures. Thus it is expected that by using the WINS+ we may strengthen disaster responsiveness and reduce the time for recovery and response at emergency.

A series of disaster response drill was conducted using a robust and integrated safety management platform (WINS+) which can provide multi-functions of safety evaluation in realtime, disaster information provision and recovery actions for major water infrastructures, which are designated as nation’s first class infrastructures, under natural disasters such as floods or earthquakes. It is believed that the experience of disaster response drills using the new integrated safety management system (WINS+) enhances our capability of preparedness and response against disasters, and that the validity of WINS+ can be clearly confirmed.

This study had the purpose to prepare a well-organized strategy to unify facility safety management system by analyzing the problems of present system for facilities subject to particular management, and identifying obstacle elements by "Special Act on the Safety Control of Public Structures". To that end, the study was conducted as follows: First through identification of the status of domestic facility safety management system and analysis of facility management system in advanced foreign countries, logic for unification of domestic facility safety management system was proposed. Second the problems of the safety management system for facilities subject to particular management, and considerations for unification were analyzed. Third, strategy for unification of facility safety management system including safety management subject and checking period etc was proposed.

Many of the structures constructed since the 1970s have begun to deteriorate. As a result, safety inspection / diagnosis and maintenance are expected to increase further, and long-term and systematic measures are urgently needed to prepare for the aging of major infrastructures. Currently, the safety inspection and maintenance of the structure is carried out by the method based on the utilization of the measurement data and the manager's experience, but the reliability and the accuracy are still insufficient. In other words, there is a limit to understanding the state change of bridges, such as abnormal behavior and gradual damages, therefore, it is necessary to have an accurate and reliable monitoring process using new techniques and systems. For this reason, I would like to examine the possibility of using cloud and big data in the field of infrastructure safety management.

This paper propose to make a Construction site safety management system using beacon indoor positioning technology. in this system, as using beacon, it can measure the position of worker who have smartphone or any device which have bluetooth function. there is two way to use technology of beacon, first one is distance technology which can alarm dangerous situation such as appoaching heavy equipment. second one is location positioning technology. it is the main technology which can measure the position of workers in real time. this system is based on low energy and accurate sensor, beacon, and have a low cost advantage. so it is expected to improve safety on the construction site.

Despite the remarkable continual growth of the world cruise industry, studies have yet to be attempted on many revenue management problems in cruise operations. This paper suggests two schemes that can be easily applied to cruise revenue management: optimal dual pricing and passenger safety level. In optimal dual pricing, a pair of higher and lower prices is applied to cabin reservation through market segmentation. This scheme can be executed with a linear price-response function for the current unreserved cabins. A cruise line could benefit from this scheme to maximize reservation revenue while attaining full occupancy. The dual pricing scheme is also devised to produce only integer demands to suit real management practices. The life boat capacity is an additional service capacity unique to the cruise industry, catering to passengers’ safety. The concept of passenger safety level is defined and computed for any passenger life boat capacity of a cruise ship. It can be used to evaluate the passenger safety of a cruise ship in operation, as well as to determine the number of life boat seats required for a new cruise ship. Hypothetical examples are used to illustrate the operation of these two schemes.

In this study, the effect of electromagnetic wave from an electronic device on electric sensor system and optic sensor were analyzed to verify the reduction effect of a optic sensor and applicability to marin structure. Test revealed that optic sensor system was not occurred the noise by electromagnetic waves also had the low range of fluctuation.

This study had the purpose to prepare a well-organized strategy to unify facility safety management system by analyzing the problems of present system for facilities subject to particular management, and identifying obstacle elements by "Special Act on the Safety Control of Public Structures". To that end, the study was conducted as follows: First through identification of the status of domestic facility safety management system and analysis of facility management system in advanced foreign countries, logic for unification of domestic facility safety management system was proposed. Second the problems of the safety management system for facilities subject to particular management, and considerations for unification were analyzed. Third, strategy for unification of facility safety management system including safety management subject and checking period etc was proposed.

In this study, the effect of electromagnetic wave from an electronic device on electric sensor system and optic sensor were analyzed to verify the reduction effect of a optic sensor and applicability to marin structure. Test revealed that optic sensor system was not occurred the noise by electromagnetic waves also had the low range of fluctuation.

This study had the purpose to prepare a well-organized strategy to unify facility safety management system by analyzing the problems of present system for facilities subject to particular management, and identifying obstacle elements by "Special Act on the Safety Control of Public Structures". To that end, the study was conducted as follows: First through identification of the status of domestic facility safety management system and analysis of facility management system in advanced foreign countries, logic for unification of domestic facility safety management system was proposed. Second the problems of the safety management system for facilities subject to particular management, and considerations for unification were analyzed. Third, strategy for unification of facility safety management system including safety management subject and checking period etc was proposed.

국내의 지진 발생 추이가 증가세를 보이고 있으며, 이에 따라 시설물 피해를 주고 큰 인명 피해를 초래하는 지진재해에 대한 대비의 중요성이 대두되고 있다. 지진재해에 대비하기 위해서는 지진 또는 진동가속도에 대한 실시간 계측을 하는 것이 중요하다. 일본과 미국의 경우 중요 시설물에 대하여 이미 실시간 지진가속도계측을 시행하고 있으며 계측된 지진가속도데이터는 데이터베이스화되어 관리되고 있다. 이를 이용해 내진설계기준 개정시 또는 지진으로 인한 피해 예측시 활용하고 있다. 국내의 경우, 최근 지진재해대책법 및 시행규칙이 개정되어 공포 되었으며, 국민안전처에서 지진가속도계측자료 통합관리시스템을 구축해 나가고 있는 상황이다. 본 연구의 목적은 국민안전처 통합관리시스 템에 연계가 가능한 시설물 실시간 진동 감지 및 분석 시스템을 개발 하는 것이다. 이 시스템은 지진가속도계측데이터 모니터링 기능을 포함하 며, 또한 고속푸리에변환, 고유진동수 추출, 응답스펙트럼, 파워스펙트럼, 진도 표출, 시설물 건전도 평가 등 다양한 가속도데이터 분석 기능을 갖추고 있을 뿐만 아니라 국민안전처 지진가속도계측자료 시스템에 연계가 가능하도록 설계되었다. 개발된 시스템은 시설물의 안전관리 네트 워크 구축, 지진 또는 진동으로 인한 시설물의 피해에 대한 대비, 유지관리 비용의 최소화에 긍정적인 효과가 있을 것이라고 판단된다.

KISTEC(Korea Infrastructure Safety & Technology Corporation) has operated the U-safety Center which developing a user-participatory disaster management system with which it's possible for a user to transmit texts, photos and videos showing the current status of a specific disaster. With reported information about retaing wall, we had safety-inspected retaining wall and performed analysis of damage stats.