Pareto routing and scheduling of dynamic urban rail transit services with multi-objective cross entropy method

Nguyen, Hoa T.M.; Chow, Ahf; Ying, Chengshuo

doi:10.1016/j.tre.2021.102544

Cited by 14 publications

(3 citation statements)

References 32 publications

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“…In addition, the entropy method is a practical, objective and scientific method to determine the weight of evaluation indices, which is also reflected in existing studies [60,70]. In the context of China's efforts to promote the structural reform of agricultural supply and improve the comprehensive efficiency and competitiveness of agriculture, carrying out actions to protect and improve the quality of cultivated land and the large-scale building of high-standard farmland will play an important basic supporting role, which has been the same conclusion as those of domestic and foreign studies [13,14,22,23].…”

Section: Conclusion and Discussionmentioning

confidence: 99%

“…The index with a greater entropy value carries a larger amount of information and therefore shall have a greater weight; while the index with a smaller entropy value provides a smaller amount of information, and therefore shall have a smaller weight [63,64]. The objective index weight can be acquired by correcting the weights of indices based on the entropy value [65][66][67][68][69][70]. This paper determines the weight of the indices in the evaluation index system based on the entropy method to provide a more scientific and objective comprehensive benefit evaluation.…”

Section: Determination Of Evaluation Index Weight Based On Entropy Me...mentioning

confidence: 99%

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A Comprehensive Evaluation of Benefit of High-Standard Farmland Development in China

Wang

et al. 2022

Sustainability

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In 2013, the government officially approved the construction task of developing high-standard farmland, which had been written into the outline of the “12th Five-Year Plan”, the “13th Five-Year Plan” and the “14th Five-Year Plan”, effectively ensuring the sustainable development of farmland with high and stable yield in China. Moreover, with the rapid progress of urbanization and industrialization, the quality and usage of cultivated land have changed greatly, and the relationship between the economic value, social value and ecological value of land has become increasingly prominent. Whether the development of high-standard farmland, especially the high-standard farmland used for grain production, has achieved the goals of increasing farmers’ income, agricultural output and rural development is not clear. Therefore, it is necessary to evaluate the comprehensive benefits of high-standard farmland development in grain production, so as to scientifically measure the results of the development. From the perspective of economic, social and ecological benefits, this paper establishes an entropy weight evaluation index system and a model to evaluate the level and effectiveness of high-standard farmland development from 2013 to 2020 in China. The results show that the high-standard farmland development project has improved the yield of grain and the basic productivity of cultivated land, effectively increased the yields of land in the project area and promoted the protection and improvement of cultivated land quality, which includes soil quality improvement, soil fertility enhancement, pollution control and soil remediation. The project also helped raise the farmers’ income levels and improved farmers’ agricultural knowledge and skills in the project area. The projects are very beneficial for agricultural production, the farmers’ income and rural development. However, there is still a certain gap between the national average level of improvement and the original goal set in the policy. The average grain yield per mu (Note: 1 mu ≈ 0.0667 ha, similarly hereinafter) was expected to be increased by less than 100 kg (the national average was a 40 kg increase), and the degrees of improvement in economic, social, ecological and comprehensive benefits in different project types were also different. In the future, we suggest that the project should be implemented according to local conditions and the features of each region. We should pay attention to the protection of basic farmland quality and further improve grain output to achieve the goal of stabilizing and increasing production.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Section: Determination Of Evaluation Index Weight Based On Entropy Me...mentioning

confidence: 99%

A Comprehensive Evaluation of Benefit of High-Standard Farmland Development in China

Wang

et al. 2022

Sustainability

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“…Zhan et al [42] proposed an integrated train scheduling and passenger routing programming model to minimize the total delay cost under disruption and designed a decomposition algorithm based on the ADMM to solve the formulation. Nguyen et al [43] proposed a multi-objective integer programming model to minimize the travel time of passengers and number of trains, and then a cross-entropy method was developed to solve the model and generate the optimized service plans. Zhao et al [44] considered passenger demand as a basic train formation factor and integrated formation with rolling stock allocation on an intercity railway line.…”

Section: Literature Reviewmentioning

confidence: 99%

Train Routing and Track Allocation Optimization Model of Multi-Station High-Speed Railway Hub

Wang

Song

et al. 2022

Sustainability

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A multi-station high-speed railway hub is the interaction of multiple high-speed railway lines, and its operation determines the efficiency of the whole network. In this study, we focus on the train routing problem for a multi-station railway hub and propose a flexible scheme to improve the capacity utilization. Based on the flexible scheme, a mixed-integer programming node-arc model is formulated to minimize the total cost of train and passenger routes. Specifically, for diversifying the train routes, we consider the individual train rather than the train flow as the basic unit, which differs from the approach in previous studies. For each train route, in addition to the macro-scale route between stations, the micro-scale track allocation inside stations is also considered. Afterward, the optimization solver Gurobi is used to solve the model and obtain the optimization scheme. A case study based on real data from the Zhengzhou railway hub in China is implemented to evaluate the effectiveness of the optimization model. By comparing the optimization scheme with the fixed scheme and the sequential scheme, the results show our method could reduce the total cost by 29.35% and 22.58%, and the line and track capacity utilization of the optimization scheme is more reasonable. We provide some suggestions to help railway managers improve the operation efficiency and service quality of multi-station high-speed railway hubs.

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Freight-transit tour synthesis entropy-based formulation: sharing infrastructure for buses and trucks

Moreno-Palacio,

Gonzalez-Calderon,

Lopez-Ospina

et al. 2024

Transportation

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Pareto routing and scheduling of dynamic urban rail transit services with multi-objective cross entropy method

Cited by 14 publications

References 32 publications

A Comprehensive Evaluation of Benefit of High-Standard Farmland Development in China

A Comprehensive Evaluation of Benefit of High-Standard Farmland Development in China

Train Routing and Track Allocation Optimization Model of Multi-Station High-Speed Railway Hub

Freight-transit tour synthesis entropy-based formulation: sharing infrastructure for buses and trucks

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