Handbook of Optimization in the Railway Industry

Abstract

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Simulation of Railway Marshalling Yards Based on Four-Phase Queuing Systems

“…The paper is devoted to construction and study of mathematical models of marshalling yards to increase their productivity and ensure their uninterrupted operation. This problem is relevant, since the volume of transported cargo (goods), the stability of the transportation process and the efficiency of the railway network as a whole depend on the quality of these facilities [1,2]. Various approaches and methods are used to solve this problem, among which deterministic models, both optimization and predictive play a key role [2][3][4].…”

“…This problem is relevant, since the volume of transported cargo (goods), the stability of the transportation process and the efficiency of the railway network as a whole depend on the quality of these facilities [1,2]. Various approaches and methods are used to solve this problem, among which deterministic models, both optimization and predictive play a key role [2][3][4]. However, their use is often not effective enough when it is necessary to take into account the possibility of failure of signaling and communication devices, breakdowns of operating locomotives, technological windows, and many other random factors.…”

Improving Online Railway Deadlock Detection using a Partial Order Reduction

“…The discrete elements used in the control of railway traffic, along with the tightly controlled, predictable environment, makes railway operations a good match for discrete mathematical modeling formalisms, such as classical planning, temporal planning, propositional logic, mixed-integer programming, etc. There is a large amount of literature on railway operations such as routing and scheduling in both the field of mathematical optimization (see [6], demonstrating the diversity and sophistication of the field) and in the field of formal methods (see [1] and [9]), analyzing both for safety and for performance.…”

Concurrent planning of railway maintenance windows and train services

“…Several surveys have also been published which focus on particular planning steps, like train timetabling (Cacchiani and Toth, 2012), rescheduling (Cacchiani et al, 2014) and dispatching (Corman and Meng, 2014). Handbooks, such as Hansen and Pachl (2008) and Borndörfer et al (2018), describe important problems in the field and methods that are used, primarily simulation and optimization.…”