• 한국도로학회논문집
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• 제19권5호
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• pp.153-162
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• 2017

PURPOSES : This study was conducted to analyze the effects arising from extending the duration of nighttime road construction on improving road quality and durability. METHODS : Most previous studies estimating the social cost of various construction conditions did not consider road pavement cooling time as a factor in improving road pavement quality. This study investigated the feasibility of achieving higher road quality and durability by extending the duration of nighttime road construction time extension. For this investigation, the effects of such an extension on traffic conditions were analyzed based on micro-simulation studies and scenario-based cost-benefit analyses, using factors including traffic volume, delay, construction cost, and road pavement cooling time. RESULTS : The results of the traffic simulation studies and cost-benefit analyses indicate that the current road construction method that emphasizes completing nighttime road construction by 6 a.m. reduces pavement life while causing relatively little traffic delay. If the night construction time is instead extended to 2 p.m., road pavement lifetime is increased, reducing road re-construction cost. These savings are greater than the cost of congestion arising from extending the duration of nighttime construction. CONCLUSIONS : The current nighttime construction durations need to be extended in order to efficiently manage roads and reduce road management costs.

• 대한토목학회논문집
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• 제36권2호
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• pp.269-276
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• 2016

최근 책임감리제도가 CM제도로 전환되고 ICEC 등급체계가 도입되는 과정에 건설관련 단체들은 국토교통부에 수시로 의견을 제시하고 있다. 그러나 그 정책 변화에 대하여 도로건설기술자들이 어떻게 인식하고 있는지 조사된 자료가 없다. 본 연구에서는 건설기술교육원에서 직무교육을 받고 있는 도로건설기술자들을 대상으로 CM과 ICEC 등급체계에 대하여 2차례 설문조사를 실시하고 분석하였다. 도로건설기술자들의 응답 추세는 외부 기관에 별도로 의뢰한 설문조사를 통하여 검증하였다. 그 결과를 토대로 하여 엔지니어링업계의 국제경쟁력을 높일 수 있는 건설정책 개선안을 도출하였다.

• 한국도로학회논문집
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• 제14권6호
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• pp.57-65
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• 2012

PURPOSES : Efficiency Improvement of a public road construction project management work using the development of a real-time remote site monitoring system METHODS : In this study, we developed the remote site monitoring system using a web camera for road construction projects in the RCMA(Regional Construction Management Administration). We can be monitored a construction progress and a weak point of the situation in real time using this. To achieve this, we tested about 10 road construction projects ordered by RCMA. Then, we verified a applicability for the site monitoring system in future. RESULTS : Take advantage of the remote site monitoring system consists of the Construction CALS System, one of the business systems used in the part of the MLTM(Ministry of Land, Transport and Maritime Affairs) institution-agencies. Was configured to be served through the "Construction CALS System" of "Construction Management System(Contractors)" and the "Construction CALS Portal System". Through this, Benefit analysis through a pilot application of the 10 road construction sites and developing considerations and "Guide for visual information processing equipment installation-operating in construction sites"are presented. CONCLUSIONS : Through the establishment of remote site monitoring system can improve the efficiency of construction management services. In addition, Various disasters and calamities, accidents and illegal construction will be prevented in advance is expected. This is expected to further improve the quality of the facilities.

• 대한환경공학회지
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• 제37권2호
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• pp.107-112
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• 2015

도로는 건설 시 많은 건설자재와 장비를 사용하여 시공단계에서의 탄소배출량이 매우 높다. 도로분야에서의 온실가스 감축을 위하여 도로의 전과정에 걸친 탄소배출량 산정 방법에 대한 연구를 수행하여 탄소배출량 산정방법을 정립하였으나, 수집해야 하는 자료 확보와 산정 절차가 복잡해 탄소배출량 산정에 어려움을 겪고 있다. 이에 따라 본 연구에서는 도로시설 물의 시공단계에서 발생하는 탄소의 정량적 산정을 쉽게 할 수 있도록 탄소배출원단위를 개발하여 제시하고, 이를 활용하여 2012년 기준으로 고속국도 및 일반국도의 탄소배출량을 정량적으로 산정 후 활용방안을 제시하였다.

• 한국도로학회:학술대회논문집
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• 한국도로학회 2010년 추계학술대회 논문집
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• pp.469-476
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• 2010

• 한국도로학회:학술대회논문집
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• 한국도로학회 2005년도 학술발표회 논문집
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• pp.375-378
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• 2005

• 한국전기전자재료학회논문지
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• 제32권6호
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• pp.466-471
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• 2019

Road photovoltaic power generation is a technology that combines photovoltaic power generation while maintaining the function of the existing road by installing special photovoltaic modules on it. In this paper, we developed three types of modules and structures suitable for sidewalk blocks and element technology for the development of a solar road module for a sidewalk and bicycle road. The road solar potential in Korea is 10 GW. After analyzing the daily data obtained after the construction of a 10 kW solar road testbed, it was found that its utilization rate compared to the general photovoltaic energy is 80%.

• 한국도로학회논문집
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• 제16권6호
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• pp.181-189
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• 2014

PURPOSES : Ambiguous decision on whether rural or urban area for road design can increase the construction cost and restrict the land use of surrounding area. However, administrative classification on rural and urban area is not directly related to road design because of this classification is not based on the engineering viewpoint, so method which can explain the road design context is required. METHODS : Method which enables to identify the area for road design is suggested based on the deceleration expected to be experienced by drivers who use the road section concerned. Deceleration rate corresponding to the area such as rural or urban suggested in Road Design Guideline is used as the criteria to identify the area by comparing this value with the estimated deceleration rate at the road section concerned. Speed profile method is utilized to derive the deceleration rate, and speed estimation way for reflecting both road geometry and intersection is suggested using stopping sight distance concept. RESULTS : The procedure of the method application is suggested, and the design example utilizing the method is provided. CONCLUSIONS : The method is expected to be used to identify the area for road design with engineering viewpoint, and design consistency among the roads with similar driving environment can be made.

• 한국도로학회논문집
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• 제16권3호
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• pp.1-8
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• 2014

PURPOSES : The purpose of this paper is to demonstrate to the practicing engineers, how to apply the advanced composite materials theory to the road structures. For general construction material used, there is certain theoretical limit in sizes. For super road structure construction, the reduction in panel weight is the first step to take in order to break such size limits. METHODS : For a typical road structures panel, both concrete and advanced composite sandwich panels are considered. The concrete panel is treated as a special orthotropic plate. RESULTS : All types of advanced composite sandwich panels are considered as a self-weights less than one tenth of that of concrete panel. The concrete panel is treated as a special orthotropic plate to obtain more accurate result. CONCLUSIONS : Advanced composite sandwich panels are considered as a self-weights less than one tenth (10%) of that of concrete panel, with deflections less than that of the concrete panel. This conclusion gives good guide line for design of the light weight of road structures.

• 한국도로학회논문집
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• 제15권3호
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• pp.85-92
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• 2013

PURPOSES: The purpose of this paper is to estimate expected effects on traffic operational and economic aspects of 2+1 roads application in Korea. METHODS : Micro simulation study using VISSIM 5.0 was used to analyze the operation efficiency of 2+1 roads compared to two-lane highways and four-lane highways. Some scenarios for various traffic volumes were set up in order to analyze the effect of 2+1 roads under various traffic situations. Also imaginary road networks were set up for each type of roads. The MOEs to measure the operation efficiency were selected with average travel speed and delay. For analyzing economic effect of 2+1 roads, construction cost of a specific imaginary 2+1 road was compared to construction cost of a four-lane highway with same conditions. RESULTS: The results of study show that a 2+1 road is more effective with 19 percents higher average travel speed and 39 percents lower average delay than a two-lane highway. In the economic analysis, construction costs to construct a 2+1 road are saved as approximately 26.4~40.7 percents when compared to construction of four-lane highway. CONCLUSIONS: It can be concluded that 2+1 roads can improve the traffic operational level of service for two-lane highways and 2+1 roads can be applied as an effective design alternative for higher-volume two-lane highways in Korea.