Journal: WIT Transactions on the Built Environment

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WIT Press

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ISSN

1743-3509
1744-7151
1746-4498

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2006 - 200952010 - 20147
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Publications 1 - 10 of 12
  • Evaluation of energy saving strategies in heavily used rail networks by implementing an integrated real-time rescheduling system
    Item type: Conference Paper
    Lüthi, Marco (2008)
    WIT Transactions on the Built Environment ~ Computers in railways XI : computer system design and operation in the railway and other transit systems
  • Displacement ductility demand and strength reduction factors for rocking structures
    Item type: Conference Paper
    Trueb, Martin; Belmouden, Youssef; Lestuzzi, Pierino (2007)
    WIT Transactions on the Built Environment ~ Earthquake Resistant Engineering Structures VI
  • Comparing the effectiveness of two real-time train rescheduling systems in case of perturbed traffic conditions
    Item type: Journal Article
    Wegele, Stefan; Corman, Francesco; D'Ariano, Andrea (2008)
    WIT Transactions on the Built Environment ~ Computers in Railways XI
    Rescheduling train traffic in a busy and complex railway area is a challenging task, partly because of the high number of constraints to be taken into account, and partly because of the many variables involved. Currently this task is performed almost exclusively by human traffic operators. Previous attempts to provide an automated decision support system have been limited to identifying and solving train conflicts locally. Recently innovative dispatching support tools have been presented that are able to cope with large (real-time) timetable perturbations, such as train delays and their propagation. However, there is a lack of computational studies that underline their additional practical value. In this paper we compare two advanced support systems for real-time rescheduling of train operations, developed for the German and Dutch railway networks. The research aim is to establish a bench mark for future co-operation and exchange of innovative solutions. A common test case from the Dutch railway network, the dispatching area between Utrecht and Den Bosch, and disturbed traffic conditions are studied to evaluate the two dispatching support tools in terms of delay minimization. Since these tools make use of differentmathematical optimization techniques for the computation of running times and train sequences, a detailed comparison of the proposed rescheduling solutions is provided. The use of railway capacity is illustrated in order to enable an easy and fast detection of the conflicts between the trains running in the network and to get precise information about their resolution by the different rescheduling techniques. Keywords: decision support, computer techniques, dynamic train regulations.
  • Impacts of Energy Saving Strategies (ESSs) on rail services and related effects on travel demand
    Item type: Conference Paper
    Corapi, G.; De Martinis, Valerio; Placido, Antonio; et al. (2014)
    WIT Transactions on the Built Environment ~ Computers in Railways XIV
  • Multimodal torsional vibrations for the characterization of complex fluids
    Item type: Conference Paper
    Brack, Tobias; Dual, Jürg (2013)
    WIT Transactions on the Built Environment ~ Fluid structure interaction VII
  • Indicators for the ecological planning of buildings
    Item type: Conference Paper
    Seyler, C.; Stoy, C.; Luetzelschwab, I.; et al. (2006)
    WIT Transactions on the Built Environment ~ Eco-architecture : harmonisation between architecture and nature
  • Estimating the benefits of energy-efficient train driving strategies: A model calibration with real data
    Item type: Conference Paper
    De Martinis, Valerio; Gallo, Mariano; D'Acierno, Luca (2013)
    WIT Transactions on the Built Environment ~ Urban Transport XIX
  • Towards a simulation-based framework for evaluating energy-efficient solutions in train operation
    Item type: Conference Paper
    De Martinis, Valerio; Weidmann, Ulrich; Gallo, Mauro (2014)
    WIT Transactions on the Built Environment ~ Computers in Railways XIV
    In this paper we propose a simulation-based framework for evaluating energyefficient solutions in train operation. The general framework is composed of an optimisation system able to generate energy-efficient station-to-station speed profiles, looped with a micro-simulation tool for simulating railway traffic conditions, in order to evaluate the impacts on railway systems (delays, conflicts) and energy savings. The optimisation system is a subroutine consisting of a Genetic Algorithm for optimal speed profile parameters optimisation, a speed profile generator, and an energy consumption model. The micro simulation tool allows the evaluation of the impact of energy efficient speed profiles on rail operation. The framework operates on a database composed of 4 subsets: timetable, rolling stock characteristics, signalling system, infrastructure features; the first subset can be considered as the result of scheduling or rescheduling procedures, while the others can be assumed to be fixed. The proposed framework has been applied on a real-scale case of an Italian suburban railway system.
  • A real option methodology to determine the optimal intervention windows for railway infrastructure
    Item type: Conference Paper
    Lethanh, Nam; Adey, Bryan T. (2014)
    WIT Transactions on the Built Environment ~ Computers in Railways XIV
  • A simulation-based approach for evaluating train operating costs under different signalling systems
    Item type: Conference Paper
    Corapi, Gregorio; Sanzari, D.; De Martinis, Valerio; et al. (2013)
    WIT Transactions on the Built Environment ~ Urban Transport XIX
Publications 1 - 10 of 12