Failure-free operation of classification yards through technology optimization

The railway operation practice has proved that the condition of technical equipment considerably infl uences the processes of traffic organization and making-up/breaking-up trains. Operational failures lead to a lower estimated capacity of sorting facilities and, consequently, to a lower carrying capacity of stations and sections. Besides, they infl ict losses on both Ukrzaliznytsia and wagon/freight owners, thus affecting train and wagon fl ows. The objective of the study is to analyze the infl uence of failures in sorting facilities on their estimated capacity and to search for ways to minimize their negative impact. Methodology of the study is computational simulation and graphical interpretation of a 24-hour estimated capacity of the sorting hump and the lead track, the most signifi cant parameters of which are weight average values, and a variable parameter is the failure rate for technical equipment.