• Title/Summary/Keyword: Sustainable Transport System

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Studies on Sustainable Policies of European Intermodal Transport System

  • Kim, Jin-Hwan
    • Journal of Distribution Science
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    • v.9 no.2
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    • pp.25-30
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    • 2011
  • Transport is animportant sector of government regulation. Every country has its own transport policy, but European countries are evolving a common transport policy, which has a long history. The establishment of a consistent common policy in the EU's transport sector is still underway. The key motivations of this policy are 1) to establish and implement a common transport policy, 2) to clarify the concept of sustainability in the transport sector, and 3) to integrate transport services into a common infrastructure. One of the policy's objectives is the progressive movement towards sustainable development in the transport section. The EU'stransport policy has recognised that intermodality is a very important competitive tool. The EU's policy thrustin intermodal transport can be catergorised into infrastructure, technology, and standards and rules. However, obstacles to success can be detected. Cases like that of TEN-T and Marco Polo illustrate European intermodal policies in practice. As regards sustainability in the transport sector, intermodality can be an alternative solution to the increasing imbalance between transport modes and congestion arising from increased road use. Sustainability has been emphasised by the EU, which aims to establish intermodality in its future alternative transport systems while fostering sustainable development in the transport sector. Therefore, intermodality can be defined as a general trend in the current transport market, drawing interest from public institutions and transport-related market players. The EU has thus made an effort to facilitate intermodality in its territory, materialised through various policy options. Therefore, looking into the EU's intermodal transport policies is worthwhile, as doing so can provide useful lessons for all concerned parties.

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Development of TP-SD Methodology-based Simulation Models to Improve Multimodal Transport Systems for Sustainable Logistics (지속가능 물류를 위한 TP-SD 방법론 기반의 복합운송체계 시뮬레이션 모델 개발)

  • Jung, Jae-Un;Kim, Hyun-Soo;Choi, Hyung-Rim;Hong, Soon-Goo
    • Korean System Dynamics Review
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    • v.11 no.2
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    • pp.45-75
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    • 2010
  • Today, the logistics industry has played a critical role in national economy activities. The low cost and high efficiency of the logistics industry are meaningful in the improvement of national competitiveness and the logistics industry. However, efficiency of logistics is lower than that of the United States and Japan since most quantities are processed in road transportation in Korea. With regard to this, existing studies expected a saving of social and environmental costs due to a decrease of road transportation as well as improvement of logistics productivity due to bulk transportation through activation of rail and costal transport. For the expectation, the existing multimodal transport systems should be improved first. Therefore it aimed to develop scenario-based simulation models of multimodal transport systems for decision makers in charge of improvement in the logistics area. For model development, this study utilized Thinking Process and System Dynamics(TP-SD) methodology.

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Performance enhancement of perovskite solar cells using Ag nanoparticles via aerosol technology (에어로졸 기술로 제작된 은 나노 입자를 활용한 페로브스카이트 태양전지 성능 향상 연구)

  • Sua Park;Inyong Park;Dae Hoon Park;Bangwoo Han;Gunhee Lee;Min-cheol Kim
    • Particle and aerosol research
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    • v.19 no.2
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    • pp.21-30
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    • 2023
  • Solar cells, converting abundant solar energy into electrical energy, are considered crucial for sustainable energy generation. Recent advancements focus on nanoparticle-enhanced solar cells to overcome limitations and improve efficiency. These cells offer two potential efficiency enhancements. Firstly, plasmonic effects through nanoparticles can improve optical performance by enhancing absorption. Secondly, nanoparticles can improve charge transport and reduce recombination losses, enhancing electrical performance. However, factors like nanoparticle size, placement, and solar cell structure influence the overall performance. This study evaluates the performance of silver nanoparticles incorporated in a p-i-n structure of perovskite solar cells, generated via aerosol state by the evaporation and condensation system. The silver nanoparticles deposited between the hole transport layer and transparent electrode form nanoparticle embedded transport layer (NETL). The evaluation of the optoelectronic properties of perovskite devices using NETL demonstrates their potential for improving efficiency. The findings highlight the possibility of nanoparticle incorporation in perovskite solar cells, providing insights for sustainable energy generation.

The Development of Planning Model for a Sustainable Housing Estate (지속가능한 주거단지 계획모형 개발)

  • 박원규
    • Journal of the Korean Institute of Landscape Architecture
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    • v.30 no.5
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    • pp.39-54
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    • 2002
  • There have been endeavors for sustainable development all over the world after the Rio World Summit and the idea of sustainable development has become common paradigm. Now, Korea has come to a situation where we need to apply the concept of sustainable development inevitably. Especially housing estate development must be preliminary change for sustainable development. Therefore, the objectives of this study were to establish sustainable planning element system of housing estate, and to propose a sustainable planning model compatible with the Korean situation. The scope of this study focused on typical multi-family housing estates in Korea and the environmental sustainable planning model. The model was developed from the evaluation of the important level and extra costs of planning elements for sustainable development of housing estate. The important level of planning principles and elements was analyzed by conducting a survey to experts. As the results of this study, four planning section ('land use and transport', 'pollution and waste', 'energy', and 'natural resource') and twelve planning items were identified. Twenty-one planning principles and fifty-five planning elements were found. Synthetically, the sustainable planning element system is composed of four planning sections, twelve planning items, twenty-one planning principles, and fifty-five planning elements. Based on survey to experts, $\ulcorner$The short-term strategic model$\lrcorner$ was developed for the social implosion of sustainable development, which is composed of ten basic elements, eighteen necessary elements, twelve optional elements, and seven arbitrary elements. $\ulcorner$The long-term future model$\lrcorner$was developed for application to from 10 to 15 years later. It is composed of fifteen basic elements, thirty-three necessary elements, and seven optional elements. The planning model proposed by this study can be used as a prototype for the development of a sustainable housing estate and can provide a practical tool for developers and planners who are not familiar with the concept of sustainable development.

The Construction and Application of Planning Support System for the Sustainable Urban Development (지속가능한 도시개발을 위한 계획지원시스템의 구축과 활용에 관한 연구)

  • Lee, Hee-Yeon
    • Journal of the Korean Geographical Society
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    • v.42 no.1 s.118
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    • pp.133-155
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    • 2007
  • The sustainable urban development has emerged as a new paradigm of urban studies in recent years. A review of the literature of land use and transport policies in relation to sustainable development reveals a consensus that the main objectives of sustainable strategy should decrease the numbers and length of journeys, and change the land use pattern towards mixed use and high density. However, there is a lack of empirical research as to what types of policies might influence effectively the reduction in the energy consumption and emission of $CO_2$. in order to sustain urban development. This paper tries to construct the conceptual structure of the PSS(planning support system), which is designed to the simulation of the probable effects of policies and planning of different kinds in cities, and evaluate the sustainablilty level according to construct the structure of the PSS(planning support system), which is designed to the simulation of the probable effects of policies and planning of different kinds in cities, and evaluate the sustainablilty level according to the alternative scenarios. The PSS is composed of three components (input-modeling-output). The core of PSS is integrating land use-transport-environment modeling. The advantages of integrating land use-transport-environment modeling are well known, but there are very few such integrated modeling packages in practice. So this paper tries to apply TRANUS software, which is an integrated land use and transport model. The TRANUS system was calibrated to city of Yongin for the base year. The purpose of the application of TRANUS to Yongin is to examine the operability of TRANUS system in Korea. From the outputs and results of operating the system, TRANUS may be effectively used to evaluate the effects of alternative sustainable urban development policies, since sustainablilty indicators can be extracted from several aspects such as land use consumption, total trips, distance and cost, energy consumption, ratio of transport split.

Estimation of the Level of Sustainable Development in Kazakhstan Regions and Recommendation for its Increase

  • Baimukhamedova, Gulzada S.;Nurlanova, Nailya K.;Akhmetova, Sharzada
    • Journal of Distribution Science
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    • v.10 no.7
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    • pp.23-31
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    • 2012
  • The purpose of this study is to investigate existing world economic science theories and concepts of sustainable development as well as create original system of criteria and indicators to assess potential and conditions for sustainable development from a regional perspective and based on the above justify proposals for public authorities to improve methods of economic regulation for regional development. To achieve the goal evolution process of existing theories and concepts of sustainable development and "green growth" have been studied in terms of its adaptation to the spatial development of Kazakhstan, comparative dynamics of natural resources consumption in the Asia-Pacific region and Kazakhstan were investigated as well. Methodology. World best theory and practice methods for assessment of the level of sustainable development of the country and some of its territories were also studied. We selected the best system of criteria and indicators for assessment of economic, social and environmental sustainability of regional systems. Methods offered in this article are based on traditional and new factors of economic development and conditions for operation of regional systems. Indicators are chosen with a glance to basic goals for future development of regions in Kazakhstan. It is recommended to use two levels of methodology offered by author, namely national and regional, and at the local level later (districts, municipalities, cities). The results. Method offered by the author has been tested based on materials and statistics of regions in Kazakhstan. Suitability and usability of the proposed system of criteria and indicators for measuring of economic, social and environmental sustainability of regional systems was proved. Based on this analysis it was found out that there are regions in Kazakhstan that differ from each other by most of key indicators of sustainable regional development and this tendency is increasing. Conclusions and recommendations. As a result of this analysis, the authors have substantiated a number of proposals on methods of analysis to be used, improvement of methods of regional development, implementation of institutional reforms, as well as improvement of regional statistics. This article provides recommendations that can be successfully used in the management practices by public authorities to implement a new regional strategy focused on sustainable development in future.

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Suggestions of the Construction and Management for Sustainable Highways (지속가능도로의 건설과 관리를 위한 방안)

  • Noh, Kwan Sub;Baek, Jong Dae
    • Ecology and Resilient Infrastructure
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    • v.3 no.3
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    • pp.156-161
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    • 2016
  • An R&D project, 'Carbon Neutral Road Technologies Development', sponsored by the Korean Ministry of Land, Infrastructure, and Transport was performed and sustainable development is being discussed in relation to global climate change. A draft of the green highway certification system, the green highway design and construction technologies for making low carbon eco-friendly roads, and Green Highway Technology Investment Evaluation System (GTIES) for estimating and managing carbon emissions from roads have been developed from the results of the R&D project. A scheme for expanding the application of these technologies and building sustainable road systems by considering the concept of sustainability was proposed in this research.

On the development of Intelligent Railway Logistics Terminal (지능형 고효율 철도물류터미널 구축 방안)

  • Kim, Dong-Hee;Hong, Soon-Heum;Kim, Young-Hoon;Kim, Kyoung-Hee;Kim, Kyoung-Min
    • Proceedings of the KSR Conference
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    • 2010.06a
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    • pp.1596-1602
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    • 2010
  • The government have plans to improve the railway transport capacity and transport hub for the sustainable national transport and logistics system. Specially, there are much efforts to improve transportation capacity such as high speed transportation of rail freight, enlargement of BT train, development of double stack train, etc. between railway transport hubs. If the transport capacity between railway logistics hubs is increased as planned, we must increase the handling capacity of railway hub terminals. But there are limits to enlarge the terminal infrastructure because of investment scale, location circumstances and urban development plans. To ensure the capacity, with the minimum required enlargement of infrastructure, it is necessary to extremely increase the efficiency of terminal operations. For improving the efficiency, we have to introduce the efficient terminal operation systems based on u-IT and operation optimize technologies. In this paper, we analyse the issues and problems of railway terminals(including ICD) and suggest the concept of intelligent railway terminal and the construction components of technology.

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On the development of Intelligent Railway Logistics Terminal (수송력 향상을 위한 지능형 철도물류터미널 구축방안)

  • Kim, Dong-Hee
    • Journal of the Korea Safety Management & Science
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    • v.12 no.4
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    • pp.175-181
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    • 2010
  • The government have plans to improve the railway transport capacity and transport hub for the sustainable national transport and logistics system. Specially, there are much efforts to improve transportation capacity such as high speed transportation of rail freight, enlargement of BT train, development of double stack train, etc. between railway transport hubs. If the transport capacity between railway logistics hubs is increased as planned, we must increase the handling capacity of railway hub terminals. But there are limits to enlarge the terminal infrastructure because of investment scale, location circumstances and urban development plans. To ensure the capacity, with the minimum required enlargement of infrastructure, it is necessary to extremely increase the efficiency of terminal operations. For improving the efficiency, we have to introduce the efficient terminal operation systems based on u-IT and operation optimize technologies. In this paper, we analyse the issues and problems of railway terminals(including ICD) and suggest the concept of intelligent railway terminal and the construction components of technology.

Perfecting the System for Assessment of the Financial Potential of a Transport Enterprise

  • Nesterov, Evgeny Aleksandrovich;Borisov, Andrei Viktorovich;Shadskaja, Irina Gennadievna;Shelygov, Aleksandr Vladimirovich;Sharonin, Pavel Nikolaevich;Frolov, Alexander Lvovich;Lebedeva, Olga Yevgenievna
    • International Journal of Computer Science & Network Security
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    • v.22 no.7
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    • pp.109-116
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    • 2022
  • The article is devoted to perfecting the system of management of the financial potential of transport enterprises. It is established that transport as an integral part of the state economy has to organically enter the market economy and provide sustainable transport services to national economy enterprises regardless of ownership, as well as ensure passenger transportation. It is also determined that in the conditions of market relations, transport highways must perform their functions with sufficient economic benefit to keep their material and technical resources in good order, conduct an investment policy with extensive use of scientific and technological progress, as well as a social policy guaranteeing the conditions for employees' motivated work. The study reveals an association between the financial and strategic goals of transport enterprises and the minimization of their economic risks, the prevention of bankruptcy and profit margin shortfalls. It is found that transport enterprises need to strive for the overall improvement of their financial potential through increasing the components of financial potential and assessing the impact of risk factors on them: the capacity of fixed assets, the capacity of financial resources, the capacity of services, and the capacity of credit opportunities. These are the elements of transport enterprises' financial potential that ensure its desired level. It is demonstrated that of critical importance in managing the financial potential of a transport enterprise is the role of financial resources, as a subject cannot reach the desired strategic goals without them.