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This paper presents the results of acase study on the causes and effects of typical service disruptions in aHigh-speed rail (HSR) system in China–Wuhan–Guangzhou High-speed railway (WH-GZ HSR). With acause-specific approach, seven delay causalities leading to primary delays (PDs) are identified, and the properties and consequences of each primary delay (PD) factor is derived. The comparison of candidate distributional forms shows that the Log-normal distribution model can approximate better the length of all identified PDs. For each PD cause, the distribution of delay duration is estimated and tuned. Next, cause-specific distributional models for PDs severity are discussed. The models for the number of affected trains are presented in the form of inverse regression models with specific domains. Then, comparing five different kinds of candidate models, the results show that the Cubic is the best to approximate the distributions of total-affected time. [ABSTRACT FROM AUTHOR]

The high-speed railway dispatching command system is the nerve center of a high-speed railway. The construction of such a system that has high reliability is of great significance in ensuring the safe operation and all-weather operation of trains. This study analyses the collaborative needs of a high-speed railway dispatching system, and investigates the organizational coordination of the system in terms of a collaborative plan, organizational coordination, information coordination, etc. The coordination mechanism of a high-speed railway dispatching command system should be based on three perspectives: (1) The vertical hierarchical level of the high-speed railway dispatching system's coordination, (2) The primary and auxiliary synergies of the horizontal professional subsystem, and (3) The cooperation between dispatching stations, as well as between the high-speed railway and the existing line command system. In this paper, we propose a theory of coordination between a high-speed railway dispatching command system and the existing lines, as well as a method for its implementation. Together, this theory and method will provide theoretical guidance and technical support in the development of a dispatching command system. [ABSTRACT FROM AUTHOR]