• Title/Summary/Keyword: Green Transportation

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Promoting Policy of the Green modes as a Sustainable Transportation System in Korea (Green modes promoting movement in Korea : backgrounds, processing, prospect) (지속가능한 개발을 위한 교통체계의 하나로서 녹색교통수단 활성화 방안 (한국에서 녹색교통운동의 태동배경, 추진과정 그리고 전망))

  • 진장원
    • Journal of Korean Society of Transportation
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    • v.18 no.4
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    • pp.63-72
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    • 2000
  • In the past 70 years, various policies for Promotion of green modes (PPGMS) have introduced in Korea as a sustainable transportation system. However, so many problems are expected that PPGMS are to become fixed as successful transportation Policies. Thus, this study argues that the PPGMS must be executed in its systematic short-, mid- and long-term strategies for it to be an effective catalyst toward bringing about sustainable cities for the future.

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A Study on Lane Width Design for Road Diets (도로다이어트를 위한 차로폭 설계 기술에 관한 연구)

  • Do, Chung-Hyun;Lee, Young-Woo
    • International Journal of Highway Engineering
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    • v.12 no.1
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    • pp.71-78
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    • 2010
  • Rapid urbanization causes a variety of transportation problems, including traffic delay. Then transportation engineers would get involved in trying to solve traffic delay through road constructed and uncongested policy. But lately, traffic policy changed from vehicle-dominated to humandominated and green transportation. Road diet is one of green transportation. Road diets reduce the number of lanes, lane width because supplement space for green transportation including a bicycle road, side-walk, etc. A study on road diets not enough then this study performed a basic study for road diets. This study on lane width reduce for road diets through analyzes sway of moving vehicle. This study results shows lane width of a compacts-size car needs 2.34~2.70m and lane width of a full-size car needs 2.62~2.89m. According to this study lane width can reduce therefore lane width design criterion have to be relieved. This study will be used in a road width reduce including a road diets, road in process of construction and so on.

Analysis of the energy recycling efficiency for railway operation (그린 철도운행을 위한 에너지 재활용 효율 분석)

  • Kim, Dong-Hui;Lee, Cheol-Gyu
    • Proceedings of the Safety Management and Science Conference
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    • 2012.04a
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    • pp.159-166
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    • 2012
  • Recently, by the whole world paradigm shift to "Low Carbon Green Growth", it is required to renovate National Transportation and Logistics System. Transportation accounts for 21% of the total energy consumption and 20% of the total $CO_2$ emission, and also places its main reliance on fossil fuels. From green point of view, electric railway system is superior to the other transportation alternatives, but also required to develop the innovative technologies for high efficiency and low energy consumption. In this paper, the concept of railway green operation system by regenerative synchronized driving is presented, including the numerical example and the estimated effect.

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A green transportation model in reverse logistics network and its comparative assessment for environmental impacts (역물류 네트워크에서의 친환경 운송 모델 개발 및 환경영향평가 비교 분석)

  • Kim, Ki Hong;Shin, Seoung-Jun;Chung, Byung Hyun
    • Journal of the Korea Safety Management & Science
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    • v.17 no.3
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    • pp.239-246
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    • 2015
  • Enforced environmental regulations call for extending the domain of manufacturers' responsibility to the entire product life cycle. To comply with the environmental regulations, manufacturers have constructed reverse logistics networks to re-collect their leftover waste for recycling consumed resources. However, the operational activities associated with storage, loading and transportation processes within the networks inevitably impose environmental burdens. Particularly, the transportation process largely influences environmental performance due to perpetual uses of transportation vehicles. Therefore, there is a need to develop an environmentally-conscious transportation model that can efficiently manage the uses of transportation vehicles. Additionally, it is vital to analyze its significances of environmental performance to compare quantitatively it with existing models. This paper proposes a transportation model for improving environmental performance in a reverse logistics network. This paper also presents a case study to perform its comparative analysis using Life Cycle Assessment that evaluates potential environmental impacts of a product system.

Design of a Logistics Decision Support System for Transportation Mode Selection considering Carbon Emission Cost (탄소배출비용을 고려한 물류의 최적 운송수단 의사결정 시스템 설계)

  • Song, Byung-Jun;Koo, Je-Kwon;Song, Sang-Hwa;Lee, Jong-Yun
    • The KIPS Transactions:PartD
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    • v.18D no.5
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    • pp.371-384
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    • 2011
  • This paper considers logistics decision support system which deals with transportation mode selection considering transportation and carbon emission cost. Transportation and carbon emission costs vary with the choice of transportation modes and to become competitive companies need to find proper transportation modes for their logistics services. However, due to the restricted capacity of transportation modes, it is difficult to balance transportation and carbon emission costs when designing logistics network including transportation mode choice for each service. Therefore this paper aims to analyze the trade-off relationship between transportation and carbon emission cost in mode selection of intermodal transportation and to provide optimal green logistics strategy. In this paper, the logistics decision support system is designed based on mixed integer programming model. To understand the trade-off relationship of transportation and carbon emission cost, the system is tested with various scenarios including transportation of containers between Seoul and Busan. The analysis results show that, even though sea transportation combined with trucking is competitive in carbon emission per unit distance travelled, the total cost of carbon emission and transportation for the sea transportation may not have competitive advantage over other transportation modes including rail and truck transportation modes. The sea-based intermodal logistics service may induce detours which have negative impacts on the overall carbon emission. The proposed logistics decision support system is expected to play key role in green logistics and supply chain management.