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International Conference on SmartRail, Traffic, and transportation Engineering, ICSTTE 2023

作者： Song, Yuanyuan Lan, Ziye Wu, Rui Xu, Honglei Zhu, Pengpeng Ministry of Transport Transport Planning and Research Institute Beijing China Laboratory of Transport Pollution Control and Monitoring Technology TPRI Beijing China Queen’s University of Belfast QUB Belfast United Kingdom

ISBN: (纸本)9789819736812

The study explores the characteristics of various freight categories transported on cross-provincial expressways. Based on the charge data from toll stations, the survey on freight categories transported on expressways was performed for K-prototypes clustering analysis and the characteristics of various freight categories transported on expressway were analyzed in terms of freight volume, transportation distance and freight flow. The analysis results showed that the freight with long transportation distance, large freight volume, low specialization degree of transportation vehicle, and high degree of delivery concentration accounted for a large proportion of bulk freight transported by expressways, whereas the freight with short transportation distance, small freight volume, high specialization degree of transportation vehicle, and low degree of delivery concentration accounted for a large proportion of the freight with high added values. The results can be used to guide the identification of the freight categories suitable for railway transportation and provide the theoretical basis and decision-making references for continuous adjustment and optimization of transportation structure. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Railroads

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Study on the Technical and Policy Pathway for Low-Carbon Development of the Water transportation in Sichuan Province 10th

Study on the Technical and Policy Pathway for Low-Carbon Dev...

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10th PIANC Smart Rivers Conference, Smart Rivers 2022

作者： Zhang, Yonglin Zheng, Chaohui Li, Yue Zhang, Liguo Cheng, Jinxiang Li, Mingjun Transport Planning and Research Institute Ministry of Transport Beijing China Laboratory of Transport Pollution Control and Monitoring Technology Beijing China

ISBN: (纸本)9789811961373

transport, one of the key sectors for the implementation of China’s carbon peak and carbon neutrality goals, boasts a water transportation crucial to China’s integrated transport infrastructure, which will face a rising demand with the continuous optimization of the transport system. Located upstream of the golden waterway of the Yangtze River, Sichuan province is one of the key regions for inland waterway transportation. In the context of the ‘dual carbon’ goals, the study proposes a conceptual framework for the low-carbon development pathway of water transport by analyzing the technical roadmap and policy recommendations for the Sichuan Province, which found that Sichuan can rely upon energy efficiency and energy substitution on the technical front, while upon the synergy of "government guidance + enterprise responsibility + market support + partnership". While focusing on slowing the growth of CO2 emissions and improving energy efficiency with LNG as the main transition fuel in the near term, Sichuan should curb the total emissions and strategize around carbon-free solutions including electricity and hydrogen. © 2023, The Author(s).

关键词： Energy efficiency

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An Optimization Model for the Regional Freight Structure

An Optimization Model for the Regional Freight Structure

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2023 International Conference on Smart transportation and City Engineering, STCE 2023

作者： Song, Yuanyuan Wang, Renjie Liu, Shengqiang Wu, Rui Transport Planning and Research Institute Ministry of Transport Beijing100028 China Laboratory of Transport Pollution Control and Monitoring Technology Beijing100028 China Beijing Jiaotong University Beijing100044 China

ISBN: (纸本)9781510673540

transport structure adjustment is an important means for collaborative emission reduction of greenhouse gases and conventional pollutants. In this paper, for the regional freight structure optimization, a multimodal freight network is built, the transport utility function is analyzed, a model for multi-objective regional freight structure optimization is built, Beijing-Tianjin-Hebei region is taken as an example, and the factors (e.g., the freight demand in the future years, the policy orientation for freight development, the development scales of various freight modes in the future) are taken as the constraint conditions to determine the feasible region of freight structure, build a model for multi-objective freight structure optimization with the minimum carbon emission and the maximum transport utility, and obtain the optimal freight structure in the year of carbon peaking and carbon neutrality goals, thus providing feasible ideas and methods for the sustainable development of the transport system. © 2024 SPIE.

关键词： Multiobjective optimization

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Measures and Suggestions for Ecological Restoration of Highway Slopes in the Context of Green Highway in China 3

Measures and Suggestions for Ecological Restoration of Highw...

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3rd International Conference on Green Energy, Environment and Sustainable Development, GEESD 2022

作者： Li, Qili Zhu, Gaoru Liu, Jie Laboratory of Transport Pollution Control and Monitoring Technology Transport Planning and Research Institute Ministry of Transport Beijing100028 China

ISBN: (纸本)9781643683126

To practice green development in highway construction and improve the theory slope ecological restoration, this paper analyzes the connotation characteristics and idea of green highway, and puts forward the needs and management suggestions of green highway idea for slope ecological restoration. The results show that: (1) the ecological restoration of highway slope should adapt to the needs of green highway development in the new period from five aspects: optimizing design, intensive using of resources, adopting different repair techniques, considering the life cycle costs and building beautiful highways. (2) The high-quality development of ecological restoration of highway slopes can promote from four types of initiatives: encouragement, compulsiveness, recommendation and guidance. The research results provide guidance and strategy for develops slope ecological restoration, which is conducive to promoting the transportation industry to practice green development and ecological civilization strategy. © 2022 The authors and IOS Press.

关键词： Restoration

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Influence of Different Test Cycles on the CO2Emission Factor of Light Gasoline Vehicles 7

Influence of Different Test Cycles on the CO2Emission Factor...

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7th International Conference on Power and Energy Engineering, ICPEE 2023

作者： Wu, Rui Yang, Daoyuan Zhang, Hao Xu, Hang Transport Planning and Research Institute Ministry of Transport Laboratory of Transport Pollution Control and Monitoring Technology Beijing China Co. Ltd. China Automotive Technology Research Center Co. LTD Tianjin China

ISBN: (纸本)9798350381146

Emission factor is an important fundamental parameter for measuring the carbon dioxide (CO2) emissions of light gasoline vehicles. However, there are differences in the CO2emission factors calculated from emission data obtained under different test cycles. To investigate the impact of different test cycles on CO2emission factors for light gasoline vehicles, this study conducted an in-depth analysis based on the China light-duty vehicle test cycle (CLTC), the Worldwide harmonized light vehicles test cycle (WLTC), and the real driving emission test cycle (RDE). The vehicle specific power (VSP) and vehicle speed are utilized as the characterization parameters for the micro-scale operation mode of vehicles. Based on this, the Bin intervals are divided to construct Bin intervals that conform to the normal distribution. CO2emission data for 6 light gasoline vehicles under C TC, WLTC, and RDE are used to investigate the impact of different test cycles on CO2emission factors for light gasoline vehicles. The study found that the "CLTC-only"CO2mission factor and "WLTC-only"CO2emission factor are lower than the "RDE-only"CO2baseline emission factor. © 2023 IEEE.

关键词： Carbon dioxide

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Research on Theoretical Framework and Implementation Path of Green Maintenance of Inland Waterway 10th

Research on Theoretical Framework and Implementation Path of...

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10th PIANC Smart Rivers Conference, Smart Rivers 2022

作者： Han, Zhaoxing Zheng, Chaohui Jiang, Wenxi Cheng, Jinxiang Zhang, Liguo Transport Planning and Research Institute Ministry of Transport Beijing100028 China Tsinghua University Beijing100084 China Ministry of Transport Laboratory of Transport Pollution Control and Monitoring Technology Transport Planning and Research Institute Beijing100028 China

ISBN: (纸本)9789811961373

Inland waterway maintenance could guarantee channel dimension and maintain navigation conditions. With the continuous increase of channel mileage, inland waterway maintenance gradually became more frequent and scale-up, as well. The maintenance activities would inevitably cause adverse environment impacts on waters, and disturb the ecosystem. Therefore, it was necessary to implement the green maintenance to reduce the negative impacts in the maintenance process. However, the research on green maintenance of inland waterway was not systematic and impeccable. This paper proposed a solution for the problem above. Firstly identified the environmental impacts of maintenance based on the analysis of maintenance process. Secondly the notion and principles of green maintenance are put forward, according to the concept of green transportation and green channel. Thirdly, the study constructed the technical framework of green maintenance and summarized the major measures for green maintenance. An last, implementation path of green maintenance was addressed including standard-setting, establishing system management, technology research and development, etc. © 2023, The Author(s).

关键词： Maintenance

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Advanced modeling of the absorption enhancement of black carbon particles in chamber experiments by considering the morphology and coating thickness

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Frontiers of Environmental Science & Engineering 2024年第9期18卷 129-142页

作者： Xiaodong Wei Jianlin Hu Chao Liu Xiaodong Xie Junjie Yin Song Guo Min Hu Jianfei Peng Huijun Wang Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and EngineeringNanjing University of Information Science&TechnologyNanjing 210044China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Key Laboratory of Meteorological Disaster(Ministry of Education)Nanjing University of Information Science and TechnologyNanjing 210044China Nansen−Zhu International Research Centre Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China East China Air Traffic Management Bureau CAAC Shanghai 200335China State Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control(IJRC)(Ministry of Education)College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China Tianjin Key Laboratory of Urban Transport Emission Research&State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control College of Environmental Science and EngineeringNankai UniversityTianjin 300071China

Measurements studies have shown that the absorption of radiation by black carbon(BC)increases as the particles ***,there are significant discrepancies between the measured and modeled absorption enhancement(E_(abs)),largely due to the simplifications used in modeling the mixing states and shape *** took advantage of chamber experiments on BC aging and developed an efficient method to resolve the particle shape based on the relationship between the coating fraction(ΔD_(ve)/D_(ve),0)and fractal dimension(D_(f)),which can also reflect the variations of D_(f)during the whole BC aging *** with externally and partly mixed states(0≤ΔD_(ve)/D_(ve),0≤0.5)can be considered to be uniformly distributed with the D_(f)values of 1.8–2.1,whereas the Df values are constrained in the range 2.2–2.8 for fully mixed states(ΔD_(ve)/D_(ve),0>0.5).The morphological parameters(i.e.,the effective density and the dynamic shape factor)were compared with the measured values to verify the simulated *** simulated mean deviations of morphological parameters were smaller than 8%for the method resolving the particle *** applying a realistic shape and refractive index,the mass absorption cross for fully mixed states can be improved by 11%compared with a simplified core–shell *** on our understanding of the influence of D_(f)andΔD_(ve)/D_(ve),0 on E_(abs),we propose a two-stage calibration equation to correct the E_(abs)values estimated by the core–shell model,which reduces the simulation error in the Mie calculation by 6%–14%.

关键词： Black carbon Mixing states Fractal dimension Dynamic shape factor Absorption enhancement

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City level CO_(2) and local air pollutants co-control performance evaluation: A case study of 113 key envir on mental protection cities in China

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Advances in Climate Change Research 2022年第1期13卷 118-130页

作者： Qing-Yong ZHANG Bo-Feng CAI Mu-Dan WANG Jun-Xia WANG You-Kai XING Guang-Xia DONG Zhen ZHANG Xian-Qiang MAO School of Environment Beijing Normal University'Beijing 100875China Center for Climate Change and Environmental Policy Chinese Academy of Environmental PlanningBeijing 100012China China National Environmental Monitoring Centre Beijing 100012China Ministry of Transport Transport Planning and Research InstituteLaboratory of Transport Pollution Control and Monitoring TechnologyBeijing 100028China

‘Co-control',or synergistically reducing CO_(2)and local air polluta nt emissions,is an important strategy for cities to achieve'low carb on'and'blue sky'***,there were few studies to evaluate and compare the level of co-control of CO_(2) and local air pollutants in cities *** present study proposed qualitative and quantitative methods to evaluate the level of co-control of CO_(2)and three local air pollutant(SO_(2).NOX,and particulate matter PM)emissions in key environmental protection cities in China over two periods(2012-2015 and 2015-2018).Statistical analysis found that,though three local air pollutant emissions positively correlated with CO_(2) emission,no significantly positive correlation was found between local air pollutants emission reductions and CO_(2) emission reductions,indicating that co-control effects were poor in *** using the co-control effect coordinate system,qualitative evaluation showed that less than half of the sample cities could achieve co-control of the total amount of CO_(2) and local air *** employing the indicator of emission reduction equivalence(EReq),quantitative evaluation showed that the co-control level of the sample cities improved in 2015-2018 compared with *** regression analysis showed that,reducing coal consumption and economic development significantly enhanced the co-control performance of the observed *** present case study proved that the proposed methods for evaluation and comparison of the city co-control performance works well,and can be used in other countries and regions to promote global cities racing to carbon and local air pollutants co-control.

关键词： Co-control CO_(2)emission reduction Local air pollutant emission reduction:Performance evaluation Key environmental protection cities

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Study on the Influence and Countermeasures of the Canal Projects on Aquatic Ecological Environment of Rivers along the Line

Study on the Influence and Countermeasures of the Canal Proj...

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作者： Zhang Ning Bao Zhiyuan Zhang Liguo Gao Yujian Xiao Yang Cheng Jinxiang Han Zhaoxing Transport Planning and Research Institute Ministry of Transport Laboratory of Transport Pollution Control and Monitoring Technology

Canal plays a prominent role in improving regional transportation conditions,regional economic development and cultural ***,the complexity of the canal project will inevitably cause disturbance to water bodies and develop a series of *** paper summarizes the engineering contents involved in the canal projects,combines the experience of the waterway and water conservancy hub on the water ecological environment,analyzes the main environmental impacts on the aquatic ecology along the canal during the construction and operation *** effective countermeasures were proposed at different levels,such as canal design,engineering construction and ecological *** work can serve as a reference for the protection of the aquatic ecological environment in canal development.

关键词： Study on the Influence and Countermeasures of the Canal Projects on Aquatic Ecological Environment of Rivers along the Line

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Research on the technical system of long-span green bridge construction 5

Research on the technical system of long-span green bridge c...

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5th International Conference on Green Energy, Environment, and Sustainable Development, GEESD 2024

作者： Li, Qili Pan, Ji Wei, Li Transport Planning and Research Institute Ministry of Transport Beijing100028 China Laboratory of Transport Pollution Control and Monitoring Technology Beijing100028 China Oujiangkou Bridge Co. Ltd. Zhejiang Wenzhou325026 China Department of Transportation of Ningxia Hui Autonomous Region Ningxia Yinchuan750001 China

ISBN: (纸本)9781510683006

In order to promote the development of green and low-carbon construction of bridges and help the high-quality development of the transportation industry, based on the concept of life cycle, on the basis of in-depth analysis and clear definition of the concept connotation of green long-span bridges, the general requirements for green bridge construction are proposed, and the green construction technology system of long-span bridges is constructed from 17 aspects of three dimensions of bridge design, construction, maintenance and operation, and the technical points of long-span green bridges are put forward from three perspectives of design, construction, maintenance and operation. The results show that: (1) Green bridges should adapt to the development requirements of green transportation in the new era from four aspects: whole-process green, all-factor protection, all-round durability and full-life economy. (2) Through the implementation of the technical points of green design, green construction, and green operation and maintenance of long-span bridges, the high-quality development of bridges in the new era can be promoted. The research results provide technical guidance for the green and low-carbon development of bridges in the new era, which is conducive to promoting the implementation of the concept of green development and ecological civilization in the transportation industry. © 2024 SPIE.

关键词： Green development

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