We present an interactive application to assist planners in adding new trains on a complex railway network. It includes many trains with different characteristics, whose timetables cannot be modified because they are already in circulation. The application builds the timetable for new trains linking the available time slots to trains to be scheduled. A very flexible interface allows the user to...

We propose a new dynamic row/column management algorithm for freight train scheduling in a single track railway system. While many papers have already been devoted to train scheduling, previously published optimization models still suffer from scalability issues, even for single track railway systems. Moreover, very few of them take into account the capacity constraints, i.e., the number of alt...

In this paper we describe the intelligent information systems that are used by the Dutch railway operator NS Reizigers for supporting its internal planning processes of generating efficient and robust duties for train drivers and guards. We focus on the TURNI system that provides real active support in creating such duties. The underlying model of the TURNI system is a set covering model with a...

CPU scheduling for multimedia applications has received a lot of recent mtention. While previous fair share schedulers are able to provide real-lime perfonnance guarantees, they do not consider application priority in their scheduling decisions. An important consequence is that delay and rate guarantees are coupled together, so that low delay cannot be achieved simultaneously with low rate. In ...

We investigate a spectrum of decision-making approaches, from centralized to decentralized, within the context of scheduling direct and indirect (via a hub) trains and assigning containers to trains for the rail (linehaul) portion of the intermodal trip. The goal is to minimize operating costs, including a fixed charge for each train, variable transportation and handling costs for each containe...