The energy consumption of trains is highly efficient due to the low friction between steel wheels and rails, although the efficiency is also influenced largely by the driving strategy applied and the scheduled running times in the timetable. Optimal energy-efficient driving strategies can reduce operating costs significantly and contribute to a further increase of the sustainability of railway ...

This paper deals with the development of decision support systems for traffic management of large and busy railway networks. Railway operators typically structure the control of complicated networks into the coordinated control of several local dispatching areas. A dispatcher takes rescheduling decisions on the trains running on its local area while a coordinator addresses global issues that ma...

The problem as stated leaves one in doubt as to what one must do. Is one meant to abstractly specify the safety and liveness properties one desires of the network? Is one meant to provide some plausible ~'implementation ~' which gaurantees the basic principle that two trains must not be simultaneously on the same piece of track? Perhaps we are even meant to enter ~he realm of inventing scheduli...

The Urban Rail Transit (URT) has been one of the major trip modes in cities worldwide. As the passengers arrive at variable rates in different time slots, e.g., rush and non-rush hours, the departure frequency at a site directly relates to perceived service quality of passengers; the high departure frequency, however, incurs more operation cost to URT. Therefore, a tradeoff between the interest...

Ropeless lifts are needed for vertical transport in the future super skyscrapers whose height is more than 800m because of the limited handling capacity of roped lifts for such buildings. The ropeless lifts have two advantages: multiple car operation in a single shaft and transferability between shafts. The ropeless lifts can be operated like double-track railway systems by making use of these ...

Most literature in train schedule optimization concentrates on the constraints of the problem. A few examples are [4, 5, 6, 7, 8]. Very little is found on the optimisation criterium: the objective function [2, 3]. We believe one of the main reasons is that in generating schedules that are robust against delays, this is the harder part of the mathematical modelling. Indeed, unlike the hard const...

Avoiding or preventing deadlocks in simulation tools for train scheduling remains a critical issue, especially when combined with the objective of minimizing, e.g., the travel times of the trains. In this paper, we revisit the deadlock avoidance and detection problem, and propose a new deadlock avoidance algorithm, called DEADAALG, based on a resource reservation mechanism. The DEADAALG algorit...

The real time railway traffic management seeks for the train routing and scheduling that minimize delays after an unexpected event perturbs the operations. In this paper, we propose a mixedinteger linear programming formulation for tackling this problem, modeling the infrastructure in terms of track-circuits, which are the basic components for train detection. This formulation considers all pos...

The Cargo Express service of Swiss Federal Railways (SBB Cargo) offers fast overnight transportation of goods between selected train stations in Switzerland and is operated as a hub-andspoke system with two hubs. We present three different models for planning the operation of this service as a whole. All models capture the underlying optimization problem with a high level of detail: Traffic rou...

Passenger railway operations are based on an extensive planning process for generating the timetable, the rolling stock circulation, and the crew duties for train drivers and conductors. In particular, crew scheduling is a complex process. After the planning process has been completed, the plans are carried out in the real-time operations. Preferably, the plans are carried out as scheduled. How...