Railway Capacity Estimation Methods. Part II. Parametric Models, Optimization, Simulation
Keywords:
Railway Capacity, Railroad, Schedule CompressionAbstract
Purpose: Capacity is the main characteristic of a railway track, vital to accurately plan freight transportation and efficiently
use the infrastructure and rolling stock. To obtain this characteristic, we use analytical methods, parametric models and simulation.
The goal of the research is the analysis and comparison of these approaches. Results: It is shown that rail track capacity evaluation
via parametric models allows you to find possible ways of infrastructure development depending on the construction cost. There are
three types of optimization increasing the track capacity: parametric, structural and functional. You can adjust the parameters of the
railway network elements (parametric optimization), replace or change certain problematic elements of the road development scheme
(structural optimization) or alter the characteristics of the operations performed at various stages of the road development (functional
optimization). A comparative review of railway traffic modeling software tools with capacity analysis functions has shown that not
many of them fully exploit all the functions of capacity evaluation and analysis. Practical relevance: This work will be helpful for rail
service workers: dispatchers, managers, engineers and others.