Ara es mostren els items 21-40 de 83

    • Adapting a dynamic OD matrix estimation approach for private traffic based on bluetooth data to passenger OD matrices 

      Montero Mercadé, Lídia; Barceló Bugeda, Jaime; Codina Sancho, Esteve (2012)
      Text en actes de congrés
      Accés obert
      The primary data input used in principal traffic models comes from Origin-Destination (OD) trip matrices, which describe the patterns of commuters across the network. In this way, OD matrices become a critical requirement ...
    • An approach based on simulation and optimisation for the intermodal dispatching of public transport and ride-pooling services 

      Lorente García, Ester; Codina Sancho, Esteve; Barceló Bugeda, Jaime; Nökel, Klaus (2023-03-16)
      Article
      Accés obert
      This paper provides a simulation and optimisation-based system to combine public transport (PT) with ride-pooling services (RP). According to the International Transport Forum (ITF), the RP could be established as a feeder ...
    • An approach based on simulation and optimization to integrate ride-pooling with public transport for a cooperative approach 

      Lorente García, Ester; Barceló Bugeda, Jaime; Codina Sancho, Esteve; Noëkel, Klaus (2023)
      Comunicació de congrés
      Accés obert
      Mobility as a Service (MaaS), appeared as a tool to provide more efficient solutions in large urban areas, but, it hasn’t always been the case. The International Union of Public Transport (UITP) and the International ...
    • An efficient greedy heuristic for the real-time train platforming problem 

      García Ródenas, Ricardo; López García, Maria Luz; Cadarso Morga, Luis; Codina Sancho, Esteve (Elsevier, 2024-04-01)
      Article
      Accés obert
      This paper focuses on a special class of real-time railway traffic management problem: efficiently reallocating trains to platforms at stations in case of slight schedule changes or major disruptions. The need for a real-time ...
    • An heuristic algorithm for dynamic network loading 

      Codina Sancho, Esteve; Barceló Bugeda, Jaime (International Federation of Automatic Control (IFAC), 1997-06-01)
      Article
      Accés obert
      This paper describes an heuristic procedure for the problem of determining the time evolution of traffic flows and routes on a road net work with the key requirement that its computational costs must be appealing so as to ...
    • An heuristic algorithm for dynamic network loading 

      Codina Sancho, Esteve; Barceló Bugeda, Jaime (International Federation of Automatic Control (IFAC), 1997)
      Text en actes de congrés
      Accés obert
      This paper describes an heuristic procedure for the problem of determining the time evolution of traffic flows and routes on a road net work with the key requirement that its computational costs must be appealing so as to ...
    • An intermodal dispatcher for the assignment of public transport and ride pooling services 

      Lorente García, Ester; Barceló Bugeda, Jaume; Codina Sancho, Esteve; Noekel, Klaus (Elsevier, 2022-03-01)
      Article
      Accés obert
      This paper describes the components of an intermodal dispatcher of ride pooling requests to integrate these urban mobility systems with the public transport network in an urban area, thus making possible a new intermodal ...
    • Application to the proximal point algorithm to the general traffic assignment problem 

      Codina Sancho, Esteve; Montero Mercadé, Lídia (Edicions de la Universitat de Lleida, 2003)
      Text en actes de congrés
      Accés obert
      An adaptation of the proximal algorithm for the traffic assignment problem under a user equilibrium formulation for a general asymmetric traffic network is presented in this paper, following the recently published results ...
    • Applying projection-based methods to the asymmetric traffic assignment problem 

      Codina Sancho, Esteve; Ibáñez Marí, Gemma; Barceló Bugeda, Jaime (2015-02-01)
      Article
      Accés obert
      This article examines the application of a path-based algorithm to the static and fixed demand asymmetric traffic assignment problem. The algorithm is of the simplicial decomposition type and it solves the equilibration ...
    • Asignación de frecuencias a líneas auxiliares de transporte público en situaciones de elevada demanda 

      Codina Sancho, Esteve; Marín Gracia, Ángel; Ibáñez Moreno, Luis Carlos; López Ramos, Francisco (2010)
      Text en actes de congrés
      Accés obert
      Durante las operaciones diarias de una red densa de cercanías diversos incidentes pueden ocasionar que el tráfico de pasajeros tenga que desviarse de sus rutas habituales. Una práctica común para aliviar el efecto de estas ...
    • Design of information points for monitoring traffic conditions 

      Montero Mercadé, Lídia; Codina Sancho, Esteve; Angel, Marín (Universidad de Cádiz, 2004)
      Text en actes de congrés
      Accés obert
      This work introduces a particular Stochastic Mathematical Program with Equilibrium Constraints that explicitly incorporates uncertainties in problem data de nition through a bilevel formulation. The upper level assumes ...
    • Dynamic OD transit matrix estimation: formulation and model-building environment 

      Montero Mercadé, Lídia; Codina Sancho, Esteve; Barceló Bugeda, Jaime (Springer, 2015-01-01)
      Capítol de llibre
      Accés obert
      The aim of this paper is to provide a detailed description of a framework for the estimation of time-sliced origin-destination (OD) trip matrices in a transit network using counts and travel time data of Bluetooth Smartphone ...
    • Dynamic user equilibrium on traffic networks. An analysis and a discretized model 

      Codina Sancho, Esteve; Barceló Bugeda, Jaime (International Federation of Automatic Control (IFAC), 1997-06-01)
      Article
      Accés obert
      This paper formulates a discretized version of the Dynamic User Equilibrium problem on traffic networks as a variational inequality problem with special emphasys on the traffic dynamics. A finite difference approximation ...
    • Evaluation of subgradients for the primal gap of variational inequalities and an application to the demand adjustment problem 

      Codina Sancho, Esteve; Montero Mercadé, Lídia (Association of European Operational Research Societies (EURO), 2003)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper the use of primal gap functions for variational inequalities for solving bilevel programming problems with equilibrium constraints is addressed. First a sufficient condition is presented so that the Clarke’s ...
    • examen 2n quadrimestre 

      Codina Sancho, Esteve (Universitat Politècnica de Catalunya, 2009-07-03)
      Examen
      Accés restringit a la comunitat UPC
    • Formal and operational validation of a bus stop public transport network micro simulation 

      Fonseca Casas, Pau; Codina Sancho, Esteve; Montero Mercadé, Lídia; Linares Herreros, María Paz; Montañola Sales, Cristina (2014)
      Text en actes de congrés
      Accés obert
      We present a detailed simulation model with the purpose of analyzing the congestion and interaction between bus lines and passengers at stops. Our main goal is to perform a complete validation of a simulation model formalized ...
    • Impact on network performance of probe vehicle data usage: an experimental design for simulation assessment 

      Montero Mercadé, Lídia; Linares Herreros, María Paz; Casanovas Garcia, Josep; Codina Sancho, Esteve; Recio, Gonzalo; Lorente, Ester; Salmeron Moya, Juan (2018-06-25)
      Article
      Accés obert
      Probe-based technologies are proliferating as a means for inferring traffic states. Technological companies are interested in traffic data for computing the best routes in a traffic-aware manner and they also provide ...
    • Integrated approach to network design and frequency setting problem in railway rapid transit systems 

      López Ramos, Francesc; Codina Sancho, Esteve; Marín Gracia, Ángel; Guarnaschelli, Armando (2017-04)
      Article
      Accés obert
      This work presents an optimization-based approach to simultaneously solve the Network Design and the Frequency Setting phases on the context of railway rapid transit networks. The Network Design phase allows expanding ...
    • Integrating bus stop modeling and simulation in public transport network design: a survey 

      Codina Sancho, Esteve; Fonseca Casas, Pau; Colls, Màxim; Montero Mercadé, Lídia (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper a survey of public transportation network design and assignment models is presented with the purpose to analyze the level of detail that is considered regarding aspects such as congestion and interaction ...
    • INVESTIGACIÓ OPERATIVA (Examen 1r quadrim) 

      Codina Sancho, Esteve (Universitat Politècnica de Catalunya, 2008-10-31)
      Examen
      Accés restringit a la comunitat UPC