• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.2
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• pp.595-601
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• 2018

The era of autonomous vehicles, which drive themselves and in whose operation the driver does not intervene, is fast approaching. The safety of autonomous vehicles can be guaranteed only if they recognize the road infrastructure. However, the road infrastructure consists of road safety facilities, traffic operation systems, and cross-sectional concerns, which include a variety of components, such as types, shapes, and sizes. Therefore, it is necessary to prioritize the road information. This study was conducted to select the priority with which the road infrastructure attributes should be acquired using the AHP (Analytical Hierarchy Process) method. The road infrastructure attributes were categorized into 2 levels, levels 1 and 2, which consisted of 3 and 26 types of attributes, respectively. As a result of the AHP analysis, it was found that the highest priorities of the road infrastructure are the road safety facilities, traffic operation systems and cross sectional concerns. Also, in level-2, the priorities of the safety barriers (road safety facilities), traffic signals (traffic operation systems), and the median (cross sectional) are the highest. Also, this study provides application examples of road infrastructure extraction with the Point Cloud. The results are expected to support the recognition of technology for autonomous vehicles.

• The Journal of the Korea Contents Association
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• v.11 no.12
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• pp.931-942
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• 2011

As the social infrastructure becomes deteriorated, its maintenance cost has been increased rapidly. There are growing needs to manage facilities systematically to reduce this kind of maintenance budget, and furthermore to avoid safety accidents in Korea. Asset management is widely used in New Zealand, the United States, Great Britain to manage their social facilities. In these countries, standardized information model and its system are developed and in service for asset management. There are several researches on asset management of social infrastructure in Korea, and the KTAM-40 work procedure is one of the main results for these researches. In this paper, the IIMM of New Zealand and the KTAM-40 of Korea, were surveyed to develop a business architecture of the highway asset management system. A new business architecture for the highway asset management system is proposed based on the KTAM-40 work procedure: First, the organization and its role for the highway asset management are defined. Second, business functions of the highway asset management are classified. Third, the highway asset management functions and the flow of information are defined. In the last section, differences between the newly designed architecture and the other systems' architecture is reviewed.

• Magazine of the Korea Institute for Structural Maintenance and Inspection
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• v.17 no.1
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• pp.66-73
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• 2013

• Magazine of the Korea Institute for Structural Maintenance and Inspection
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• v.18 no.3
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• pp.100-104
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• 2014

• Journal of Korean Society of Transportation
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• v.21 no.5
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• pp.119-133
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• 2003

도로는 교통기능 외에 여러 시설물을 수용할 수 있는 사회 인프라구축의 공간으로 활용될 수 있기 때문에 서울시뿐만 아니라 각 지방자치단체에서는 이러한 공간을 활용하기 위한 도로점용공사는 매년 전국적으로 수만 건에 달하고 있다. 따라서. 매년 발생하는 도로점용공사의 차로과다 점용, 교통시설물 설치 부적절, 보행자 안전무시, 공사안내표지 부적절, 공사구간에서의 불법 주.정차 등의 문제점이 계속하여 발생.지적되고 있으나 이에 따른 관련 규정이 미흡하여 도로점용공사 시행자의 불법을 초래하고 있는 실정이다. 또한 서울시의 경우 시스템적 접근방법인 관련조례에 의해서 수행되기보다는, 교통자문회의로 운영되고 있으며, 관련 인원 및 법적 제재조치가 미약하여 도로점용공사의 효과적인 관리가 어려운 실정이다. 따라서 서울시 및 각 지방자치단체에서는 도로점용공사로 인한 보행자와 운전자의 통행권 확보와 안전상의 문제 등을 하루빨리 인식하여 도로점용공사에 따른 도로공사장 교통관리 규정을 법규화 하여 체계적으로 관리할 필요가 있다. 이에 따라, 본 논문에서는 도로점용공사에 따른 관련법 및 적용대상, 관련보고서 검토, 서울시를 사례로 한 공사중 교통처리방안 운영실태 및 문제점의 진단을 통하여 향후 도로공사장 교통관리 규정의 운영적 및 제도적 측면의 개선방안과 향후 추진방향을 제시하고자 한다.

• Journal of the Society of Disaster Information
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• v.17 no.3
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• pp.608-616
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• 2021

Purpose: Safety inspections by existing personnel have been limited in evaluation and data securing due to concerns about the safety of technicians or difficulty in accessing them, and are becoming a bigger problem as the number of maintenance targets increases due to the aging of facilities. As drone technology develops, it is possible to ensure the safety of personnel, secure visual data, and diagnose quickly, and use it is increasing as safety inspection of facilities by drones was introduced recently. In order to further enhance utilization, it is considered necessary to base a consideration standard for facility appearance investigation by drones, and in this paper, research was conducted on dams. Method: To calculate the quality, existing domestic safety inspection and drone-related consideration standards were investigated, and procedures related to safety inspection using drones were compared and analyzed to review work procedures and construction types. In addition, empirical data were collected through drone photography and elevation image production for the actual dam. Result: Work types for safety inspection of facilities using drones were derived, and empirical survey results were collected for two dams according to work types. The existing guidelines were applied for the adjustment ratios for each structural type and standard of the facility, and if a meteorological reference point survey was necessary, the unmanned aerial vehicle survey of the construction work standard was applied. Conclusion: The finer the GSD in appearance investigation using drones, the greater the number of photographs taken, and the concept of adjustment cost was applied as a correction to calculate the consideration standard. In addition, it was found that the problem of maximum GSD indicating limitations should be considered in order to maintain the safe distance.

• Journal of the Korean Institute of Gas
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• v.15 no.6
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• pp.8-13
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• 2011

All over the nation, a lot of industrial complex utilize gas as their energy source. Possibilities are fire, explosion, and leakage could happen any time in these large complexes. To prevent these tragic accidents and to minimize the damage when the accident occurs, the development of diagnostic technology for these facilities is imperative. The safety check is conducted on an individual and partial basis, currently. Accordingly, the accumulation and improvement of the safety management technology is necessary in order to make all the different checking techniques and management systems compatible, since checking processes, result interpretation techniques, and subsequent prognoses are not the same. The program provides damage scenarios from gas leakage. The output enables policy makers to predict the degree of infliction. Through this program, engineers are able to design an effective gas safety program to operate and maintain ubiquitous gas facilities.

• Journal of the Korean Society for Railway
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• v.20 no.4
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• pp.550-557
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• 2017

Owing to the established international standards for reliability and safety management of railways and the third-part conformity assessment implementation, quantitative risk assessment focusing on communication system related to railway safety has being implemented. The quantitative risk assessment starts from the establishment of quantitative RAMS requirements; the risk has to be maintained under an acceptable safety level. This paper introduces the risk assessment process based on international standards ; risk assessment was conducted using failure data for railway facilities for about 5.5 years. In addition, based on the results, a scientific risk management method for railway facilities is suggested.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.49-49
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• 2021

홍수 발생 시 제내지에 존재하는 도로 및 상·하수도시설물은 저지대를 중심으로 생성되는 침수지역이 아닌 대부분 집중호우, 태풍으로 인해 발생한 유출량이 지표면 유출로 이어져 지면 경사를 따라 유하하면서 흐름을 방해하거나 노후된 시설물 등에서 피해가 발생한다. 이러한 피해발생 특성을 고려하여 홍수피해액을 추정하기에는 침수면적과 시설물 현황 등을 활용하는 기존의 손실 함수 개발 방법으로는 부족한 부분이 존재하며, 유수 흐름의 주요 인자인 침수심, 유속 등과 같은 수리특성을 고려하여 시설물에 대한 홍수피해액을 추정하는 방안이 필요하다. 본 연구에서는 수리특성을 고려한 시설물의 홍수피해액을 추정하기 위한 손실함수를 개발하고자 국가재난정보관리시스템(NDMS) DB에서 해당 시설물의 상세주소를 이용하여 피해 발생위치와 피해액을 파악하였으며, 2차원 수리해석 모형인 FLO-2D를 활용하여 시설물의 피해위치에서 발생된 수리특성 인자인 침수심과 유속을 분석하였다. 시설물의 단위면적 당 피해액을 종속변수로, 분석된 평균 침수심과 평균 유속을 독립변수로 선정한 후 변수 자료들의 신뢰성과 함수의 설명력을 향상시키기 위하여 이상자료들을 제거한 후 손실함수를 개발하였다. 본 연구에서 개발된 손실함수는 수리특성 인자인 침수심과 유속에 의하여 홍수피해액을 직접적으로 추정하는 방법으로 향후 홍수재해에 대한 사전 재산피해 추정을 통하여 합리적인 선제적 예방조치 등의 홍수재해 예방 활동 등에 활용될 수 있을 것으로 기대한다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.26 no.4
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• pp.415-421
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• 2008

The purpose of this study is to provide a sensor based service model for traffic facilities in u-City through analysing the present condition of urban infrastructure, especially traffic facilities management. In order to achieve this purpose, we did a comparative analysis of internal and external situation of ITS(Intelligent Transport System) and classified service for traffic facilities to 3 categories, namely traffic flow management, traffic information offering, formation of road structure. Also, we examined technological trend of USN(Ubiquitous Sensor Network). Through this process, we present a sensor based service model of traffic facilities for building sustainable road environment.