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Research paper | Open Access

China’s railway train speed, density and weight in developing

Bo Jiang1,2, Changhai Tian3( ), Jiehang Deng2, Zitong Zhu2
Signal and Communication Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, China
China Academy of Railway Sciences, Beijing, China
Railway Science and Technology Research and Development Center, Chinese Academy of Sciences, Shanghai, China
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Abstract

Purpose

This study aims to analyze the development direction of train speed, density and weight in China.

Design/methodology/approach

The development of China’s railway in the past 40 years can be divided into 3 stages. At the stage of potential tapping and capacity expansion, it is important to improve the train weight and density by upgrading the existing lines, and improving transportation capacity rapidly. At the stage of railway speed increase, the first priority is to increase train speed, reduce the travel time of passenger train, and synchronously take into account the increase of train density and weight. At the stage of developing high-speed railway, train speed, density and weight are co-developing on demand.

Findings

The train speed of high-speed railway will be 400 km h−1, the interval time of train tracking will be 3 min, and the traffic density will be more than 190 pairs per day. The running speed of high-speed freight EMU will reach 200 km h−1 and above. The maximum speed of passenger train on mixed passenger and freight railway can reach 200 km h−1. The minimum interval time of train tracking can be compressed to 5 min. The freight train weight of 850 m series arrival-departure track railway can be increased to 4,500–5,000 t and that of 1,050 m series to 5,500–6,400 t. EMU trains should gradually replace ordinary passenger trains to improve the quality of railway passenger service. Small formation trains will operate more in intercity railway, suburban railway and short-distance passenger transportation.

Originality/value

The research can provide new connotations and requirements of railway train speed, density and weight in the new railway stage.

Keywords

DensityHigh-speed railwaySpeedWeightPotential tapping and capacity expansionRailway speed increase

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Railway Sciences
Volume 1 Issue 1,
July 2022
Pages 131-147
DOI: 10.1108/RS-04-2022-0009
Cite this article:
Jiang B, Tian C, Deng J, et al. China’s railway train speed, density and weight in developing. Railway Sciences, 2022, 1(1): 131-147. https://doi.org/10.1108/RS-04-2022-0009

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Received: 19 January 2022
Revised: 31 January 2022
Accepted: 09 April 2022
Published: 03 May 2022
© Bo Jiang, Changhai Tian, Jiehang Deng and Zitong Zhu. Published in Railway Sciences.

This article is published under the Creative Commons Attribution (CC BY 4.0) licence. Anyone may reproduce, distribute, translate and create derivative works of this article (for both commercial and non-commercial purposes), subject to full attribution to the original publication and authors. The full terms of this licence may be seen at http://creativecommons.org/licences/by/4.0/legalcode.
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