Tags:Bottleneck section, Capacity improvement, Discrete-event simulation, Flexible timetable, Graded railway section, System analysis and Train fleeting
Abstract:
This article analyzes operations management in a section with mixed train traffic and complex topography. The study focuses on the Lonavla-Karjat (LNL-KJT) in central India, a hill section (also known as "ghat section" in Indian Railways). Additional bankers are required to ascend and descend, and a few other safety measures are speed limits and brake testing of trains going in the downhill direction. Furthermore, it is a section with high passenger traffic. All these reasons lead to a more extended waiting period for freight trains, which restricts freight capacity. The present work is a system analysis study exploring different operational and tactical approaches to increase the capacity of the system. Operation-level techniques discussed in the paper are corridor-based scheduling, increasing timetable flexibility, and changing banker composition. The tactical-level technique of adding banker resources is also analyzed. The throughput of a ghat section depends on various factors. A discrete event simulation model is developed to analyze the section performance under different scenarios. A cost-benefit analysis is also done to investigate the option of adding resources.
System Analysis of Train Operations on Rail Sub-Network with Mix-Traffic and Steep Gradients