Now showing items 41-60 of 72

  • Fusing mobile phone data with other data sources to generate input OD matrices for transport models 

    Montero Mercadé, Lídia; Ros-Roca, Xavier; Herranz, Ricardo; Barceló Bugeda, Jaime (Elsevier, 2019)
    Article
    Open Access
    OD matrices that describe mobility patterns provide major input to most transport analysis models. Since OD matrices are not yet directly observable, they are usually estimated indirectly. Data from new sources such as ...
  • Heurísticas, planos secantes y optimización subgradiente para set partitioning 

    Barceló Bugeda, Jaime; Fernández Aréizaga, Elena (Universitat Politècnica de Barcelona. Centre de Càlcul, 1988)
    Article
    Open Access
    En este artículo se estudian los problemas de Set Partitioning (SP) desde una perspectiva algorítmica. El diseño de un procedimiento heurístico permite no sólo disponer de soluciones posibles para los mismos, sino también ...
  • ICT based estimation of time-dependent origin-destination matrices 

    Barceló Bugeda, Jaime; Montero Mercadé, Lídia; Marqués, Laura; Carmona Bautista, Carlos (2011)
    Conference report
    Open Access
    Time-Dependent Origin-Destination (OD) matrices are a key input to Dynamic Traffic Models, microscopic and mesoscopic traffic simulators are relevant examples of such models, traditionally used to assist in the design and ...
  • Incident management combined with traffic management 

    Wilmink, Isabel; Immers, Ben; Barceló Bugeda, Jaime; Montero Mercadé, Lídia (1998)
    Conference report
    Open Access
  • Incident prediction: a statistical approach to dynamic probability estimation : application to a test site in Barcelona 

    Montero Mercadé, Lídia; Barceló Bugeda, Jaime; Perarnau, Josep (2002)
    External research report
    Open Access
    Real-time models for estimating incident probabilities (EIP models) are innovative methods for predicting the potential occurrence of incidents and improving the effectiveness of incident management policies devoted to ...
  • Investigating the performance of SPSA in simulation-optimization approaches to transportation problems 

    Ros-Roca, Xavier; Montero Mercadé, Lídia; Schneck, Arne; Barceló Bugeda, Jaime (Elsevier, 2018-11)
    Article
    Open Access
    While optimization models play a key role in transportation analysis, the objective function to be optimized, however, cannot be defined analytically. It is therefore necessary to resort to non-differentiable optimization ...
  • Investigating the quality of SPSA and Spiess-like approaches forDynamic OD Matrix Estimation 

    Barceló Bugeda, Jaime; Ros-Roca, Xavier; Montero Mercadé, Lídia (2018)
    Conference report
    Restricted access - publisher's policy
    Dynamic OD Estimation is usually formulated as bi-level problem where the objective function can not be evaluated analytically and thus the formulation relies on non-differentiable optimization methods that usually pivot ...
  • Kalman-Filtering formulation details for Dynamic OD passenger matrix estimation 

    Montero Mercadé, Lídia; Codina Sancho, Esteve; Barceló Bugeda, Jaime (2014)
    Conference report
    Restricted access - publisher's policy
    In this paper, we describe how to estimate time-sliced origin-destination (OD) matrices for passengers in a public transport network based on counts of ICT (Intelligent Communication Technology) devices carried by ...
  • Metodologia del estudio de alternativas en el delta del llobregat 

    Montero Mercadé, Lídia; Codina Sancho, Esteve; Barceló Bugeda, Jaime; Barceló, P (LOPEZ PITA Y ROBUSTE ANTON EDITORES, 1998)
    Conference report
    Open Access
    El Delta del Llobregat acoge en la actualidad la implantación de una nueva autovía y la remodelación de infraestructuras existentes determinada por la construcción de la denominada Pata Sur (acceso al Aeropuerto de Barcelona, ...
  • Microscopic simulation with AIMSUN for the assessment of incident management strategies 

    Barceló Bugeda, Jaime; Ferrer, J; Casas Pla, Josep Ramon; Montero Mercadé, Lídia; Perarnau, Josep (2002)
    Conference report
    Open Access
    PRIME (Prediction of Congestion and Incidents in Real Time, for Intelligent Incident Management and Emergency Traffic Management) was a project of the 5ht Framework Program of the European Union which objectives were to ...
  • Modelización de la decisión y modelos para tomar decisiones 

    Barceló Bugeda, Jaime; Martí Recober, Manuel (Asociación de Técnicos de Informática, 1980-04)
    Article
    Open Access
  • MODELS ESTOCÀSTICS DE LA I.O. (Examen 1r. quadrim.) 

    Barceló Bugeda, Jaime (Universitat Politècnica de Catalunya, 2003-01-16)
    Exam
    Restricted access to the UPC academic community
  • MODELS ESTOCÀSTICS DE LA I.O. (Examen 1r. quadrim.) 

    Barceló Bugeda, Jaime (Universitat Politècnica de Catalunya, 2003-01-16)
    Exam
    Restricted access to the UPC academic community
  • Notes on using simulation-optimization techniques in traffic simulation 

    Ros Oton, Xavier; Montero Mercadé, Lídia; Barceló Bugeda, Jaime (Elsevier, 2017)
    Conference report
    Open Access
    Mathematical and simulation models of systems lay at the core of many decision support systems, and their role becomes more critical when the system is more complex. The decision process usually involves optimizing some ...
  • On the optimal length of the transit network with traffic performance microsimulation: application to Barcelona 

    Estrada Romeu, Miguel Ángel; Robusté Antón, Francesc; Amat, Jordi; Badia Rodríguez, Hugo; Barceló Bugeda, Jaime (2012)
    Conference report
    Restricted access - publisher's policy
    This paper examines the design of high performance transit network that minimizes the transit agency costs, the time of transit users in the system and the travel time of car users. Surface transit services need segregated ...
  • Panorama actual de los métodos enumerativos (I) 

    Barceló Bugeda, Jaime (Universitat Politècnica de Barcelona. Centre de Càlcul, 1978-03)
    Article
    Open Access
    En este trabajo sobre el "estado del arte" actual de los metodos enumerativos se aborda el problema bajo tres puntos de vista: metodologla, desarrollo experimental y fundamentos teóricos. En la primera parte se trata el ...
  • Panorama actual de los métodos enumerativos (y II) 

    Barceló Bugeda, Jaime (Universitat Politècnica de Barcelona. Centre de Càlcul, 1978-06)
    Article
    Open Access
    En este trabajo sobre el "estado del arte" actual de los métodos enumerativos se aborda el problema bajo tres puntos de vista: metodología, desarrollo experimental y fudamentos teóricos. En la primera parte se trata el ...
  • Problemas de Knapsack 0-1 con una restricción adicional 

    Barceló Bugeda, Jaime; Fernández Aréizaga, Elena (Universitat Politècnica de Barcelona. Centre de Càlcul, 1988)
    Article
    Open Access
    En este artículo se estudian los problemas de Knapsack con una restricción adicional. Este estudio viene motivado por la aparición de problemas con esta estructura en la formulación de distintas relajaciones lagrangianas ...
  • Projection and Fukushima's gap based methods for the asymmetric traffic assignment problem 

    Codina Sancho, Esteve; Ibañez, G.; Barceló Bugeda, Jaime (2012)
    External research report
    Open Access
    Report de recerca DR 2012/2 The research reported in this paper has been funded by projects SIMETRIA (Ref. P 63/08, 27.11.2008), of the Spanish R+D National Programs and project TRA2008-06782-C02-02.
  • Reflexiones sobre la implementación y uso de los modelos matemáticos en 

    Barceló Bugeda, Jaime (1985)
    External research report
    Open Access
    Durante los últimos años ha decaído el huso de los modelos matemáticos de la Investigación Operativa, frente a este hecho este trabajo intenta analizar algunas de las posibles causas y de las posibles líneas de actuación ...