Optimization models for high-speed train unit routing problems

Train unit routing problem determines the number of train units needed to carry out involved trips, which is a significant part of railway operation cost. In this paper, we focus on high-speed train unit routing problems, in which maintenance resource constraints both on time and distance are taken into account. Based on a connection network,...

Train describer records as a source of information for infrastructure monitoring, performance analysis and traffic management

Data records from tram describer systems represent a valuable source of information for analysing system performance and assessing railway timetable quality. The aim of this paper is to introduce the Dutch tram describer system and present algorithms developed for automatic identification of track blockages, route conflicts (including the...