In the vehicle routing literature, equity for drivers is mostly considered on a daily basis. In this work, we extend the literature by addressing equity on a longer term. We consider a time horizon of a few weeks and a test-bed routing problem motivated by healthcare logistics, with customer...

In this paper, we investigate the synchronization between the two echelons in two-echelon urban distribution systems. The first echelon aims at transferring goods from a warehouse to a (single) city hub located in the city center. The second echelon, managed with a fleet of environmentally...

A wide range of real world optimization problems involves continuous decisions and non-linearities. Each non-linear component of such problems can be modeled either linearly or non-linearly, considering or not additional integer variables. This results into different modeling choices that can...

The purpose of this paper is to propose models for project scheduling when there is considerable uncertainty in the activity durations, to the extent that the decision maker cannot with confidence associate probabilities with the possible outcomes of a decision.Our modeling techniques stem from...