Ramon Alvarez-Valdes

MILP models for the continuous Berth Allocation and Quay Crane Assignment Problem considering crane movement and setup times

  • Ramon Alvarez-Valdes
  • Juan F. Correcher
  • Federico Perea
    • Categories (Mixed) Integer Linear Programming, Scheduling, Transportation Tags , , ,

    In this technical report we present several Mixed Integer Linear Programming (MILP) models for the Berth Allocation and Quay Crane Assignment Problem (BACASP) considering crane movement and setup time (from now on: BACASP-S). First, we propose a MILP for the continuous-quay time-invariant BACASP in which both berthing time and position variables are continuous. Then, we … Read more

    Mathematical models for Multi Container Loading Problems with practical constraints

  • M.T Alonso
  • Ramon Alvarez-Valdes
  • Manuel Iori
  • F. Parreño
    • Categories (Mixed) Integer Linear Programming, Transportation Tags , , ,

    We address the multi container loading problem of a company that has to serve its customers by first putting the products on pallets and then loading the pallets into trucks. We approach the problem by developing and solving integer linear models. To be useful in practice, our models consider three types of constraints: geometric constraints, … Read more

    A Biased Random-Key Genetic Algorithm for the Berth Allocation and Quay Crane Assignment Problem

  • Ramon Alvarez-Valdes
  • Juan F. Correcher
    • Categories Applications - OR and Management Sciences Tags , , , , ,

    Maritime transportation plays a crucial role in the international economy. Port container terminals around the world compete to attract more traffic and are forced to offer better quality of service. This entails reducing operating costs and vessel service times. In doing so, one of the most important problems they face is the Berth Allocation and … Read more

    A new mixed integer linear model for the berth allocation and quay crane assignment problem

  • Ramon Alvarez-Valdes
  • Juan F. Correcher
  • Jose M. Tamarit
    • Categories Scheduling, Transportation Tags , , , ,

    Efficient management of operations in seaport container terminals has become a critical issue, due to the increase in maritime traffic and the strong competition between ports. In this paper we focus on two seaside operational problems: the Berth Allocation Problem and the Quay Crane Assignment Problem, which are considered in an integrated way. For the … Read more