• Title/Summary/Keyword: Environmental Friendly Road

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A Study on the Management for Reducing empty truck movements (사업용 화물자동차의 공차운행 감소에 관한 연구)

  • 전만술;김연희
    • Proceedings of the Safety Management and Science Conference
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    • 2002.05a
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    • pp.285-294
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    • 2002
  • This study is focused on the operation of truck with conscious for environmental logistics system to reduce empty truck movements, and to control running empty truck. With the logistics function, road transport represents the biggest environmental threat. Using nonrenewable natural resources, contributing to air and noise pollution, trucks are environmentally unfriendly. Any steps to reduce transport activity will help minimize negative impact. In particular, noxious emissions must be reduced, but in the long term more environmentally friendly vehicles are required.

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A Study on the Application of an Environment Friendly Crossing Wood Drain for Easy Forest Road Management (산림관리도로의 생력화를 위한 친환경적 횡단목 배수로의 적용에 관한 연구)

  • Lee Sung-Gie;Lee Kab-Yeon;Kim Jong-Han;Kang Young-Je;Byun Kwang-Ok
    • Journal of Environmental Science International
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    • v.14 no.6
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    • pp.521-524
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    • 2005
  • We introduce a simplified crossing wood drain disperses rain water concentration and is used to protect the road surface from erosion due to flooding over the unpaved road. The efficiency of a simplified crossing wood drain was also investigated. A structure of simplified crossing wood drain can be produced within 10 minutes and installed within 18 minutes. The cost of the this product is 1/5 of that of the existing crossing drain product. The production and installation cost can be reduced according to dexterity. In the context of such applications, the degrees of damage for a rubber pad, which preventing the rain overflow, were varied according to their materials. A type of 8.2mm thick fabric rubber was the most suitable in this study.

Present Status and Future Vision of EIA for Railroad Construction Projects (철도건설사업 환경영향평가의 현황과 과제)

  • Lee Hyun-Woo;Lee Young-Joon;Park Young Min;Yoon Mikyung
    • Proceedings of the KSR Conference
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    • 2004.06a
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    • pp.296-302
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    • 2004
  • After the Rio declaration on environment and development in 1992, developed countries are undertaking 'environmentally sustainable transportation (EST)' projects. To meet the needs for EST, current transportation policies in Korea are rapidly reforming and one of its concerns is modernizing and upgrading railway freight system. Planning new railroad construction projects is increasing and subsequent environmental impact assessment (EIA) demands improvements, especially in both the EIA and decision making systems. In this paper, we discuss the present status of EIA for railroad construction projects, especially, by analyzing the EIA documents accumulated for last six years. The EIA for railroad construction projects .accounts for only $4.9\%$ of total project EIAs during 1998-2003. However, the portion is gradually increasing. Major environmental concerns for EIA in railroad construction projects were geomorphological and ecological changes, protection of rare organisms, air pollution, water quality, wast management, noise, etc. We also compared the characteristics of environmental impacts of railroad construction with those of vehicle road construction. The result shows that railroad construction usually requires 3${\~}$4 times longer tunnels and bridges for a given length than vehicle road construction. In addition, the amounts of geomorphological and ecological changes (road-cutting, embankment, devegetation, etc.) in railroad construction were generally less than $40\%$ of those in vehicle road construction. In order to develop environmentally friendly railway systems, monitoring studies for environmental impacts of railroads such as habitat fragmentation and road kills, dispersal of alien plants, tunnelling effects on groundwater and vegetation, and noise impacts are highly required.

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Characterization of Potential Impact of Carbon Emissions under Speed Limit Enforcement on the Uninterrupted Flow (연속류 위험도로구간에서의 운전자의 도로속도규정 준수에 따른 온실가스 변화량 연구)

  • Lee, Jong Hak;Lee, Soong Bong
    • International Journal of Highway Engineering
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    • v.19 no.6
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    • pp.175-182
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    • 2017
  • PURPOSES : Road sectors contribute approximately 16 % of total GHG emission rates in South Korea. Engineers and experts expend significant efforts to identify countermeasures for the reduction of carbon emission. This study aims to determine how total carbon emission rates change depending on whether or not there is speed limit enforcement. METHODS : In this study, Lamm's travel speed profile theory is first adopted to select the hazard road, which sections are designated as speed limit enforcement. Second, Motor Vehicle Emission Simulator (MOVES) was used to simulate the carbon emission on the road. RESULTS : The total carbon emission rate under speed limit enforcement was 10,773 g higher than the condition without speed limit enforcement in the designated road. This might affect acceleration, which can lead to increased emissions. CONCLUSIONS : There would be no researches about proving the relationship how speed limit enforcement has an effect on carbon emission. The result of our study can provide valuable guidelines regarding road safety and eco-friendly roads.

On-Site Cutting Performance Analysis of Conventional Pavement Cutter for Deriving Performance Standard Value (성능 기준값 도출을 위한 재래식 도로절단기의 현장 절단성능 분석)

  • Kim, Kyoon-Tai
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.05a
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    • pp.243-244
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    • 2023
  • Noise, dust, etc. caused by road pavement cutting work, which frequently occurs in new construction or reconstruction of buildings, construction of complexes, etc., are environmental hazards and cause civil complaints. Recently, an eco-friendly pavement cutter is being developed to make the work low in noise and dust, however, the on-site cutting performance of the equipment has not been quantified. In this study, in order to derive a standard value for comparing the cutting performance of the eco-friendly cutter under development, a conventional pavement cutter was applied to four residential sites in Seoul and Gyeonggi-do, and the cutting data was collected. As a result of analyzing the collected data, the conventional pavement cutter showed a cutting performance of 12.3 to 20.2 sec/m, and the average was 27.2 sec/m. In the future, additional cutting experiments with various mixing ratios, materials, and depths are planned to confirm the performance of conventional pavement cutter in more detail.

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Development of Solution Algorithm for Multi-dimention Road Alignment Design Considering Low-Carbon (탄소저감형 다차원 도로선형설계를 위한 솔루션 알고리즘 개발)

  • Kang, Jeon-Yong;Shim, chang-su
    • Journal of KIBIM
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    • v.5 no.4
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    • pp.11-22
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    • 2015
  • Government efforts for green growth policy initiatives demand low-carbon technologies in the road construction industry. The purpose of this paper is to develop an algorithm of a road alignment design solution for establishing the multi-dimensional information, and to calculate carbon emission quantity due to the geometric design elements in the planning phase of road alignment. The paper developed a calculation method for carbon emission quantity by drawing a speed profile reflected in the operating speed, acceleration and deceleration, which are majors factor of carbon emissions while driving and by applying a carbon emission factor. From this effort, it enabled alignment planning to reduce carbon emission. Object-based parametric design methods of the cross-sections were proposed for alignment planning, and the paper demonstrated a BIM-based road alignment planning solution. The proposed solutions can provide multi-dimensional information on carbon emission quantity and cross section elements through driving simulation. It is expected to allow construction of eco-friendly roads by deriving optimal road alignment to minimize environmental costs.

Field Investigation of Chloride Penetration and Evaluation of Corrosion Characteristics for Deicer (염화물 침투 현장조사 및 제설제에 따른 부식특성)

  • Yang, Eun-Ik;Kim, Myung-Yu;Park, Hae-Geun
    • Journal of the Korean Society of Hazard Mitigation
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    • v.8 no.6
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    • pp.47-52
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    • 2008
  • Deicer has been generally used for prevention of a road freezing in winter, and the usage amount is increasing every year. However, deicer may induce the decrease of bond strength, surface scaling, and environmental pollution. In this study, the field test was performed to investigate the deterioration of concrete road structures used for 17 years. And, the corrosion resistance characteristics were compared for the existing deicer and eco-friendly deicer. According to the field test results, the penetration depth of limit chloride amount was about 40mm, and the average concentration of chloride was $3.45kg/m^3$ at the surface of structures. On the contrary, the carbonation depth was slight. The penetration depth of eco-friendly deicer was less than the existing deicer, and the corrosion resistance of eco-friendly deicer was higher.

Study of Road Load of Electric Two-Wheeled Vehicle (전기이륜차의 도로부하 설정에 관한 연구)

  • Kil, Bum-Soo;Kim, Gang-Chul
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.35 no.5
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    • pp.525-531
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    • 2011
  • Recently, the demand of environmentally friendly transportation has increased due to the environmental issues. Electric two-wheeled vehicles do not have the noise pollution nor exhaust gases of vehicles with internal combustion engines. Performance evaluation of an electric two-wheeled vehicle was carried out. A driving test on outdoor roads was performed and a chassis dynamometer was used. The chassis dynamometer simulates the road load of the vehicle. The road load influences the tests using the chassis dynamometer. The differences between the table method and the coasting test for setting the road load was compared and analyzed.

Environment-Friendly Optimum Route Selecting With Geo-spatial Information Analysis (지형공간정보분석에 따른 환경친화적 최적 도로노선 선정)

  • Kim, Sang-Seok;Jang, Yong-Gu;Choi, Su-Geun;Kang, In-Joon
    • Journal of Korean Society for Geospatial Information Science
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    • v.13 no.3 s.33
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    • pp.69-77
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    • 2005
  • Most of the evaluations of environmental effect of construction of road do not run parallel with the evaluation of the propriety of the business, but it just reviews how to reduce contamination before the beginning of the construction work. This reveals the limitation of the induction of environment friendly development from the fundamental. In this study, a function of GIS spatial analysis for 9 elements of pre-evaluation of environmental effect has been introduced, and a GIS decision making system for environmental effect of a road has been established for an integrated evaluation by using individual evaluation result. By using GIS decision making system for pre-evaluation of environmental effect that has been developed in this study and the GIS data that has been collected, it would be possible to decrease time and money for evaluation as well as fulfill the requirement of objectivity. Therefore, it would be possible to apply for pre-evaluation of environmental effect when deciding on the route of the road at the beginning stage of the construction work. Also, through the system developed in this study, the construction body could easily induce a mutual agreement with the residents by the visual evaluation material, which might result in an evaluation of environmental effect while decreasing time and money at the beginning stage of the construction.

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An Analysis of Factors Affecting Environmental Load in Earthwork Type of Road Project (도로건설공사 토공작업부에 대한 환경부하 영향인자 분석)

  • Park, Jin-Young;Im, Je-Gyu;Kim, Byung-Soo
    • Korean Journal of Construction Engineering and Management
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    • v.19 no.4
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    • pp.52-60
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    • 2018
  • In the construction industry, attempts to evaluate the environmental impact of products through life cycle assessment (LCA) approach has been on the rise. However, the domestic construction industry needs to make rapid decisions due to limited budget and schedule, so it is difficult to carry out a review of the environmental load on all resources. The decision-making process requires information on the major influence factors that should be focused on to reduce environmental load. And this information should be quantified so that it can be linked to environmental impact assessment. In this study, the LCA results of road construction cases were analyzed to provide such information. As a result, diesel, ready-mixed concrete, urethane-based paint, aggregate, and asphalt concrete were found to be the main factors that generated 93.17% of the environmental load in the earthwork type of road project. The total environmental cost caused by these affecting factors when constructing 1 km of earthwork type of road project is 242 million won. The analysis also shows that a 10% reduction in the amount of ready-mixed and asphalt concretes can reduce carbon emissions by 5.02% and 2.28% while reducing environmental costs by 11 million won per kilometer. In order to reduce carbon emissions of the earthwork type of road project, it is necessary to actively develop and introduce new methods and eco-friendly materials to reduce the overall use of ready-mixed concrete and asphalt concrete.