China Academy of Transportation Science

Beijing, China

China Academy of Transportation Science

Beijing, China
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Zhou Y.,China Academy of Transportation science | Pang Q.,China Academy of Transportation science
Frontiers in Artificial Intelligence and Applications | Year: 2017

With the rapid development of regional integration, the adjacent city mobility is becoming increasingly active, adjacent city masses have new requirements to set the public transport operation passenger line of the adjacent city. To grasp the passenger transport demand of the passenger transportation route in the adjacent city is an important prerequisite for the study of the adjacent city passenger transportation. Based on the analysis of passenger flow characteristics and influencing factors, the paper analyses the models and methods for forecasting passenger demand, according to the characteristics of passenger flow, a method to predict the trend of passenger flow and passenger flow in the public transport operation passenger line of the adjacent city is determined. It has important reference value for the construction of the adjacent city transport network, transport capacity and transportation policy. © 2017 The authors and IOS Press. All rights reserved.


Chu C.,China Academy of Transportation Science | Pan F.,China Academy of Transportation Science
IOP Conference Series: Earth and Environmental Science | Year: 2017

This paper focuses on estimating highway transportation greenhouse gas emission volume and greenhouse gas external cost in China. At first, composition and characteristics of greenhouse gases were analysed about highway transportation emissions. Secondly, an improved model of emission volume was presented on basis of highway transportation energy consumption, which may be calculated by virtue of main affecting factors such as the annual average operation miles of each type of the motor vehicles and the unit consumption level. the model of emission volume was constructed which considered not only the availability of energy consumption statistics of highway transportation but also the greenhouse gas emission factors of various fuel types issued by IPCC. Finally, the external cost estimation model was established about highway transportation greenhouse gas emission which combined emission volume with the unit external cost of CO2 emissions. An example was executed to confirm presented model which ranged from 2011 to 2015 Year in China. The calculated result shows that the highway transportation total emission volume and greenhouse gas external cost are growing up, but the unit turnover external cost is steadily declining. On the whole overall, the situation is still grim about highway transportation greenhouse gas emission, and the green transportation strategy should be put into effect as soon as possible. © Published under licence by IOP Publishing Ltd.


Grant
Agency: European Commission | Branch: FP7 | Program: CSA-CA | Phase: SST.2013.3-2. | Award Amount: 2.19M | Year: 2013

Transport is a key enabler of economic activity and social connectedness. While providing essential services to society and economy, transport is also an important part of the economy and it is at the core of a number of major sustainability challenges, in particular climate change, air quality, safety, energy security and efficiency in the use of resources (EC 2011: Transport White Paper). The overall mission of this project is to support the uptake of innovative sustainable urban mobility solutions in Europe and other regions in the world, in particular in Asia, Latin America and the Mediterranean. The call text has identified several regions in the world, policy areas and previous and on-going projects relevant for addressing the topic: Implementing innovative and green urban transport solutions in Europe and beyond (SST.2013.3-2). SOLUTIONS will address all regions and policy areas, and will link into all projects mentioned in the call text. We believe that this approach generates the greatest synergies, which will be for the benefit of participating cities and the projects SOLUTIONS will link to and build upon. While SOLUTIONS will build strongly on previous and on-going projects and initiatives, as is the nature of a coordinating action, it also aims to provide added value that goes beyond summarising and facilitating knowledge sharing and research and technology transfer. SOLUTIONS aims to bridge the implementation gap between the potential of innovative sustainable mobility and transport solutions and packages of solutions and the actual level of up-take and quality of the deployment mechanisms.


Wang Q.,Harbin Institute of Technology | Wu C.,Harbin Institute of Technology | Sun Y.,China Academy of Transportation science
Journal of Air Transport Management | Year: 2015

This paper applies entropy weight and grey relation analysis to evaluate corporate social responsibility (CSR) performance of eight Chinese major airlines. This paper intends to achieve two main aims. First, this study uses entropy to find the relative weights of performance measures of CSR. In so doing, we find that on-time performance, accident rate, flight frequency, growth of employees revenue, and employees revenue are relatively most important measures. Second, based on the results of entropy analysis, this study ranks the airlines in terms of CSR performance by grey relation analysis. This result shows that most of the larger state-controlled airlines perform better in performance of CSR. Furthermore, the private airline has made relatively large improvement in its CSR performance. In addition, the listed airlines are better than non-listed airlines in CSR performance. © 2014 Elsevier Ltd.


Sun G.-X.,CAS Research Center for Eco Environmental Sciences | Wang X.-J.,China Academy of Transportation science | Hu Q.-H.,University of Texas at Arlington
Environmental Pollution | Year: 2011

Lead isotopes and heavy metal concentrations were measured in two sediment cores sampled in estuaries of Xiangjiang and Lishui Rivers in Hunan province, China. The presence of anthropogenic contribution was observed in both sediments, especially in Xiangjiang sediment. In the Xiangjiang sediment, the lower 206Pb/ 207Pb and higher 208Pb/ 206Pb ratio, than natural Pb isotope signature (1.198 and 2.075 for 206Pb/ 207Pb and 208Pb/ 206Pb, respectively), indicated a significant input of non-indigenous Pb with low 206Pb/ 207Pb and high 208Pb/ 206Pb. The corresponding concentrations of heavy metals (As, Cd, Zn, Mn and Pb) were much higher than natural values, suggesting the contaminations of heavy metals from extensive ore-mining activities in the region. © 2011 Elsevier Ltd. All rights reserved.


Ng A.K.Y.,Hong Kong Polytechnic University | Song S.,China Academy of Transportation science
Ocean and Coastal Management | Year: 2010

The environmental impacts generated by shipping operations have increasingly become an important research topic, where its pollutants often pose negative externalities to natural habitats and economic losses to coastal areas. While the environmental impact costs generated by shipping disasters, notably large scale accidental oil spills, have been widely studied, hitherto, works dedicated to the assessment of environmental impact costs of pollutants generated by routine shipping operations remain scarce due to their relatively implicit nature and thus delays of consequential risks. Hence, by proposing an economic model and calibrating it to Port of Rotterdam, this paper assesses the environmental impact costs generated by routine shipping operations on ports. By shedding light on this important, but under-researched, issue critical to the well-being of the global shipping industry, this paper provides a decent framework for further research in sustainable shipping and port management for future generations. © 2010 Elsevier Ltd.


Chu C.C.,China Academy of Transportation Science
Advances in Energy Science and Equipment Engineering - Proceedings of International Conference on Energy Equipment Science and Engineering, ICEESE 2015 | Year: 2015

This paper focused on the issues of estimating the commercial vehicles emission amount and atmospheric pollution cost in China. At first, the model of vehicle emission was presented based on the affecting factors analysis method. Three aspects, the motor vehicle’s quantity of different type, the annual average operation miles and the main pollutant emission, were considered affecting factors. Secondly, the marginal cost of each pollutant was quantitatively evaluated by contrast to the IMPACT studied results, which considered not only the per capita GDP difference between China and the EU but also the GDP growth in China. Finally, the commercial vehicles pollutant cost estimation model was established which combined emission with pollutant marginal cost. As an example, the commercial vehicle emission and pollutant cost from 2009 to 2013 in China were calculated to confirm the presented model. The results showed that the commercial vehicle total emission and pollutant cost is gradually reducing; the trend is more obvious from the results of unit turnover in China. © 2015 Taylor & Francis Group, London.


Chunchao C.,China Academy of Transportation Science
Proceedings - 2015 International Conference on Control, Automation and Robotics, ICCAR 2015 | Year: 2015

Toll expressway financial risk problem is being paid more and more attention nowadays, because which may induce local government debt risks. This paper focuses on the issues about toll expressway financial risk, and presents a set of monitoring, analyzing and management solution. At first, toll expressway financial risk indexes were designed, which considered not only the current but also the potential solvency about the payment ability of each toll expressway project. Secondly, four risk levels and alerting values were defined by means of those indexes estimation. Meanwhile, corresponding actions were suggested according to risk levels. Thirdly, the decision support system (DSS) was developed on toll expressway financial risk monitoring, and a case study was conducted as well. In the case study, the financial risk level of each project was easily identified by different colors, such as red standing for serious situation. The research achievements provide technical supports and decision-making references for monitoring financial risks of toll expressway projects. © 2015 IEEE.


Wu H.-Y.,China Academy of Transportation science
Applied Mechanics and Materials | Year: 2013

In this paper, based on the customer satisfaction theory [1] of social and experimental psychology, Satisfaction measuring model of bus rapid transit's service was established by using the measure and economic method, and the pilot study for the reliability and validity of the model was implemented in Jinan city. The aim of establishing satisfaction measuring model is to provide references for the decision makers on improving service level of operated bus rapid transit. © (2013) Trans Tech Publications, Switzerland.


Zhang T.,China Academy of Transportation science
Communications in Computer and Information Science | Year: 2013

In VMI mode, logistics outsourcing to third-party logistics, although vendors can solve logistics capabilities and information issues such as lack of capacity, but also increases the complexity of the operation of the VMI. VMI-based third party logistics operation mode (i.e. VMI & TPL mode), the supply chain information flow and logistics bound to change. For example VMI mode transport, distribution and inventory management changes; information sources, information transmission and information sharing changes. Therefore, for the introduction of third-party logistics VMI works, how to effectively integrate information flow and logistics, third party logistics and VMI achieve the organic integration has become necessary to solve the problem. This article from the system's perspective on VMI & TPL mode information flow and logistics integration have deeply study and to achieve the desired goals. © Springer-Verlag Berlin Heidelberg 2013.

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