Research on the Return Capacity of Intercity Railway under CTCS-2 Signal System
PAN Zhuo1, CUI Yanqu1, TAN Bin3, LIU Yongxin2, REN Chong1
1. China Railway Eryuan Engineering Group Co. Ltd, Chengdu, Sichuan 610031, China; 2. CREC Research Center for Belt and Road Interconnectivity, Chengdu, Sichuan 610031, China; 3. Southwest Jiaotong University, Chengdu, Sichuan 610031, China
Abstract：Research purposes: In recent years, a new type of intercity railway with both inter-city and urban (suburban) commuting functions has appeared in Guangdong-Hong Kong-Macau Greater Bay Area (GBA), which has the characteristics of independent operation, underground laying, public transportation operation and so on. The existing regulations on the turn-back capacity of trains and the number of arrival and departure tracks in the existing intercity railway specifications are no longer applicable to the intercity railway in GBA. In order to control the scale of the station tracks and maximize the ability of arrival and departure tracks, there is an urgent need to research the efficient turn-back mode under intensive distribution lines. According to the analysis of the turn-back operation process, the calibration of various time parameters and the mutual restriction relationship among operations, we conclude the calculation principle of multi-track alternating turn-back capacity by graphic method, which can be used to guide the operation plan and station tracks scale control. Research conclusions: (1) When the alternating return of the four tracks in front of the station, when theactual residence time of track 3/Ⅰ and track Ⅱ / 4 is not greater than 13.72 min/13.17 min, the corresponding interval between arrival and departure is 4.23 min, and the return capacity is 14 pairs/h, which has nothing to do with the time of turn-back time, but only related to the time of occupying the throat area. (2) When the actual residence time of track 3 / Ⅰ and Ⅱ / 4 is longer than 13.72 min/13.17 min, the corresponding departure interval increases 0.5 min and the return capacity decreases by 1 pair/h with each increase of 2 min of turn-back time. (3) When the alternating return of two tracks behind the station, when the turn-back time increases by 2 min, the arrival and departure interval increases by 1 min, and the return capacity decreases by about 1 pair/h. (4) The research result can be used to guide the design of traffic organization and the scale control of station distribution.
潘琢, 崔衍渠, 谭彬, 刘永欣, 任冲. CTCS-2信号系统下城际铁路折返能力研究[J]. 铁道工程学报, 2022, 39(4): 59-66.
PAN Zhuo, CUI Yanqu, TAN Bin, LIU Yongxin, REN Chong. Research on the Return Capacity of Intercity Railway under CTCS-2 Signal System. Journal of Railway Engineering Society, 2022, 39(4): 59-66.
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2022, Vol. 39 
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