Now showing items 1-10 of 10

  • An evaluation of urban consolidation centers through continuous analysis with non-equal market share companies 

    Roca Riu, Mireia; Estrada Romeu, Miguel Ángel; Fernández Aréizaga, Elena (2015)
    Conference report
    Open Access
    This paper analyzes the logistic cost savings caused by the implementation of Urban Consolidation Centers (UCC) in a dense area of a city. In these urban terminals, freight flows from interurban carriers are consolidated ...
  • Designing new models for energy efficiency in urban freight transport for smart cities and its application to the Spanish case 

    Navarro, Carolina; Roca Riu, Mireia; Furió, S.; Estrada Romeu, Miguel Ángel (Elsevier, 2015)
    Conference report
    Open Access
    Considering that the transport sector is responsible for 30% of the CO2 emissions in the EU, reaching up to 40% in urban areas, the efforts for technological improvements and innovation in transportation have been increasing ...
  • Improving bus travel times with passive traffic signal coordination 

    Estrada Romeu, Miguel Ángel; Trapote Barreira, César; Roca Riu, Mireia; Robusté Antón, Francesc (2009)
    Conference report
    Restricted access - publisher's policy
    A simulation optimization model is outlined: traffic signal offsets in intersections are calculated to minimize the travel time of bus users in an urban network. The model considers a passive signal priority system and ...
  • Improving urban deliveries via collaboration 

    Roca Riu, Mireia (Universitat Politècnica de Catalunya, 2015-12-22)
    Doctoral thesis
    Open Access
    Distribution of goods is essential for the economic development of cities but at the same time it entails several problems to the urban systems and different stakeholders. Carriers spend a significant portion of their cost ...
  • Parking slot assignment for urban distribution: models and formulations 

    Roca Riu, Mireia; Fernández Aréizaga, Elena; Estrada Romeu, Miguel Ángel (2015-05-07)
    Article
    Open Access
    A key element to enhance urban distribution is the adequate management of parking space, particularly for loading and unloading operations. An in-advance booking system able to be adjusted to users needs can be a very ...
  • Planificació de la generació elèctrica i de la reserva rodant a curt termini en un mercat liberalitzat amb contractes bilaterals 

    Roca Riu, Mireia (Universitat Politècnica de Catalunya, 2008-02)
    Master thesis
    Open Access
    Les companyies generadores d’energia elèctrica que participen en un mercat liberalitzat oferten periòdicament la seva producció per un plaç determinat. El benefici que n’obtenen depèn críticament de l’estratègia que adopten ...
  • Planning a freight network with hub and spoke strategies 

    Roca Riu, Mireia; Ortigosa, Javier; Estrada Romeu, Miguel Ángel (2012)
    Conference lecture
    Restricted access - publisher's policy
    The location of freight terminals in a territory is a key factor for their performance and competitiveness. Nowadays, several factors led to the implantation of a freight terminal in an area and then different possible ...
  • Stakeholder’s profitability of carrier-led consolidation strategies in urban goods distribution 

    Estrada Romeu, Miguel Ángel; Roca Riu, Mireia (2017-08)
    Article
    Open Access
    This paper presents the necessary conditions to ensure a minimal profitability of carrier-led consolidation strategies in urban distribution. These conditions are shown by compact formulas obtained by continuous approximations ...
  • The design of interurban bus networks in city centers 

    Roca Riu, Mireia; Estrada Romeu, Miguel Ángel; Trapote Barreira, César (2012-10)
    Article
    Restricted access - publisher's policy
    This paper proposes a bilevel formulation for solving the Bus Network Design Problem (BNDP) of interurban services entering a major city. It is focused in interurban services because it is a growing problem in most of major ...
  • The shared customer collaboration vehicle routing problem 

    Fernández Aréizaga, Elena; Roca Riu, Mireia; Speranza, M. Grazia (Elsevier, 2018-03-16)
    Article
    Restricted access - publisher's policy
    This paper introduces a new vehicle routing problem that arises in an urban area where several carriers operate and some of their customers have demand of service for more than one carrier. The problem, called Shared ...