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Article

A Green Transportation Planning Approach for Coal Heavy-Haul Railway System by Simultaneously Optimizing Energy Consumption and Capacity Utilization

School of Traffic and Transportation, Beijing Jiaotong University, No.3 Shang Yuan Cun, Hai Dian District, Beijing 100044, China
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Academic Editor: Tomio Miwa
Sustainability 2021, 13(8), 4173; https://doi.org/10.3390/su13084173
Received: 27 February 2021 / Revised: 31 March 2021 / Accepted: 6 April 2021 / Published: 8 April 2021
Coal heavy-haul railway has been aiming at maximizing capacity utilization, but ignoring energy consumption for a long time. With the focus on green production, heavy-haul railways need transportation organization plans that can balance energy consumption and capacity utilization. Based on this, this paper proposes a data mining + optimization framework that uses train trajectory data to estimate train energy consumption and then uses a mixed integer programming model to simultaneously optimize plans from energy and capacity aspects. We use Gaussian distribution to describe features of energy consumption under different situations, and build a multi-dimensional cube to store these features to connect with the optimization model. In addition, a branch-and-bound algorithm is design to solve the optimization model. From the sensitivity analyses we can conclude that (1) shortening the departure interval from 13 min to 9 min will generate more energy consumption, about 3.6%; (2) combining short-form trains (50 units) with long-form trains (100 units) while increasing the carrying capacity will generate more energy consumption, about 5~14%; and (3) by controlling weights of the optimization model, capacity–energy-balanced plans can be obtained. The results can contribute to improving the sustainability of railways. View Full-Text
Keywords: coal heavy-haul railway; railway train trajectory data; energy consumption; capacity utilization; simultaneously optimizing coal heavy-haul railway; railway train trajectory data; energy consumption; capacity utilization; simultaneously optimizing
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MDPI and ACS Style

Fu, J.; Chen, J. A Green Transportation Planning Approach for Coal Heavy-Haul Railway System by Simultaneously Optimizing Energy Consumption and Capacity Utilization. Sustainability 2021, 13, 4173. https://doi.org/10.3390/su13084173

AMA Style

Fu J, Chen J. A Green Transportation Planning Approach for Coal Heavy-Haul Railway System by Simultaneously Optimizing Energy Consumption and Capacity Utilization. Sustainability. 2021; 13(8):4173. https://doi.org/10.3390/su13084173

Chicago/Turabian Style

Fu, Jianjun, and Junhua Chen. 2021. "A Green Transportation Planning Approach for Coal Heavy-Haul Railway System by Simultaneously Optimizing Energy Consumption and Capacity Utilization" Sustainability 13, no. 8: 4173. https://doi.org/10.3390/su13084173

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