N problem, then the model to become solved. The decision of theAxioms 2021, ten,5 offield has been made on two primary criteria: the first would be the suitability of your chosen city to have transport systems able to use a network of ULS, the second that of information availability. Then, the city of Barranquilla has been chosen because it really is a mediumsized city inside the north region of NQTrp Formula Colombia, becoming the fourth city in the nation when it comes to financial value, presents a city distribution structure that consists of many kinds of ULS, and a multiplestage data collection process was conducted to retrieve info to interactively build the model. The key objective of this investigation becoming to propose an optimization model and resolve it, representing a reality and becoming replicable to other contexts, an iterative information collection system has been deployed for describing the problem and validating both the model plus the remedy. To perform that, a set of 9 stakeholders (8 companies and 1 public stakeholder) have already been interviewed, and various field observations happen to be carried out. Every single stakeholder has been interviewed 3 times, at unique moments, very first to define the ULS in Barranquilla and decide on the ULS sorts, second to define and model the transport systems, and third to validate the hypotheses and assumptions on the model. That information collection allowed to define the decision difficulty (presented in Section three.1) then the MIP model was developed and solved with linear programming (presented in Sections 3.two and four). three.1. Difficulty Description As outlined by published literature, in Colombia, Logistics Centers are understood as equipment strategically located in hugely productive regions to concentrate and supply complementary services for the territory’s principal activities and perform in line with the physical integration with the territory, for the strengthening of its production activities and for the consolidation of politicaladministrative ties that promote territorial competitiveness [71]. In Colombia, the improvement of the logistics sector has been one with the country’s most significant bets in recent years, inside a logical try to benefit from the availability of land of 23 Axioms 2021, 10, x FOR PEER Assessment six as well as the exceptional strategic place of your country’s maritime ports, specifically inside the northern Caribbean coast (see circle in Figure two).Figure two. Place of your city of Barranquilla, Colombia. Figure 2. Location with the city of Barranquilla, Colombia.This paper considers the case of your city of Barranquilla, which can be administratively In the instance of Barranquilla, the city has distinct areas of Orotidine Description economic activity, acdefined as aby the creation of various industrial regions for the reception of of Colombia. In companied special, industrial, and port city located in the northern coast manufacturing current years, Barranquilla and its metropolitan region sorts of a robust are mostly becoming a firms, logistics and specialized solutions. These have hadactivities vocation of located logistics, industrial, and district, extending from north to south as well as the 30th Street, Corin the eastern zone on the specialized solutions center, whose basic activity is usually to act asdialidad, and Circunvalar Avenue corridors as defined in the Land Management Strategy of the city of Barranquilla [72] (see Figure 3). All these spaces act as logistic nodes that present options for the needs on the area. However, as a result of good growth in the city through the past decade, the logistics need.