Organizational Unit:

Supply Chain and Logistics Institute

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https://hdl.handle.net/1853/70673

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Organizational Unit

Physical Internet Center

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Now showing 1 - 10 of 57

Stochastic Service Network Design with Different Relay Patterns for Hyperconnected Relay Transportation

(Georgia Institute of Technology, 2023-06) Li, Jingze ; Liu, Xiaoyue ; Dahan, Mathieu ; Montreuil, Benoit

Hyperconnected relay transportation enables using a relay system of short-haul drivers to deliver long-haul shipments collectively, which helps address root causes of trucker shortage issues by transforming working conditions with potentials of daily returning home, accessing consistent schedules, and facilitating load matching. This Paper investigates hyperconnected relay transportation as a sustainable solution to trucker shortage issues through a logistics platform. We propose a two-stage programming model to optimize consistent working schedules for short-haul drivers while minimizing transportation costs. The first stage involves opening services and contracting truckers under demand uncertainty, where each service has a service route and approximate service schedules adhering to USA federal short-haul hour-of-service regulations. The second stage assigns hauling capacities to open services and manages commodity shipping or outsourcing given the demand realization. We extend the model formulation to account for various operational patterns (e.g., freight loading and unloading or hauler swapping) and schedule consistency requirements (e.g., weekly or daily consistency). A scenario-based approach is employed to solve the model for a case study of automotive delivery in the Southeast USA region. The experimental results validate the proposed approach, and further explore the impact of stochastic demands, operational patterns, consistent schedules, and hauling capacities on hyperconnected service network design. This research aims to offer practical guidance to practitioners in the trucking industry.
Hyperconnected Logistic Service Networks: Bidding-Based Design Framework

(Georgia Institute of Technology, 2023-06) Kwon, Simon ; Montreuil, Benoit ; Dahan, Mathieu ; Klibi, Walid

In hyperconnected urban logistics, all components and stakeholders are connected on multiple layers through standardized interfaces and open networks to achieve seamless responsiveness, efficiency, resilience, and sustainability. Key for high performance is achieving coordination and cooperation of urban stakeholders. In this Paper, we introduce the design of hyperconnected logistic service networks where associated logistic activities to move flows within an urban city are outsourced to third-party logistic service providers (3PL) via a bidding process to create service networks that are highly responsive and flexible at robustly responding to customer demand. We propose a framework for designing such networks that leverages a reverse combinatorial auction mechanism in which a logistic orchestrator serves as the auctioneer, putting out the logistic activities for auction and a set of participating service providers serve as bidders. We describe the design components of hyperconnected service networks and positions them into a comprehensive 3-stage design-making framework. Finally, we identify promising future research avenues for each stage in the proposed framework.
Hyperconnected Urban Synchromodality: Synergies between Freight and People Mobility

(Georgia Institute of Technology, 2023-06) Labarthe, Olivier ; Klibi, Walid ; Montreuil, Benoit ; Deschamps, Jean-Christophe

This Paper investigates the opportunity to exploit an on-demand freight transshipment service in urban areas. This contribution attempts at first to focus on the feasibility to connect people and freight mobility with a joint usage of transportation options. It builds on the hyperconnectivity principles enabled by the Physical Internet (PI) manifesto for city logistics. To this end, this Paper proposes an effective solution approach for optimizing multimodal on-demand transshipment. The approach considers multiple mobility options such as on-demand delivery services, cargo bikes, tramways, and buses to transship goods from an urban logistic hub to another. The hyperconnected synchromodal mobility solution is proposed as an alternative option to classical pickup and deliverybased transportation. The proposal is first characterized in link with the interconnectivity needs and then its operability is modeled as a new transportation approach. The proposed solution aims to increase the sustainability of cities by reducing congestion levels, the impact of logistics moves, as well as carbon emissions in urban areas. An illustrative case is provided to demonstrate how the novel hyperconnected synchromodal transportation system could operate, and to provide an evaluation of the economic and sustainability benefits of such system in an urban context.
Hyperconnected Urban Parcel Delivery Network Design with Tight Delivery Service Requirements

(Georgia Institute of Technology, 2023-06) Kwon, Simon ; Leveque, Johan ; Klibi, Walid ; Stauffer, Gautier ; Montreuil, Benoit

The advent and growth E-Commerce has led to not only a huge increase in demand for rapid and guaranteed transport/delivery services, but also in the numbers of vehicles entering and leaving urban cities to deliver goods and services, clogging the roads and polluting the air. Seeking efficient usage of resources is inarguable. Motivated by these challenges, this Paper studies the design of hyperconnected parcel network design in line with the Physical Internet initiatives, modelling it as a coalition-formation game. The objective is to design a cooperative parcel delivery network among multiple delivery actors such that the actors within the same coalition can share resources. We develop a case study of La Poste to understand the impact of coalitional decisions and cost-sharing methods on the global and individual network design cost.
Resilience Assessment of Hyperconnected Parcel Logistic Networks Under Worst-Case Disruptions

(Georgia Institute of Technology, 2023-06) Kulkarni, Onkar ; Dahan, Mathieu ; Montreuil, Benoit

Logistics networks that shape the Physical Internet’s logistics web are prone to potentially adversarial disruptions that impact their performance severely. In this article, we study a network interdiction problem on a multi-commodity flow network in which an adversary totally disrupts a set of network arcs with an intention to maximize the operational costs of delivering parcels. We formulate it as a two-stage mixed-integer linear program. To solve such complex large-scale program, we use linear programming duality and provide an algorithm based on the structure of the program that computes the set of network arcs that can be interdicted in order to reduce its size. Finally, we use the model and solution framework to evaluate the resilience capabilities of topology optimized hyperconnected networks and compare it with lean networks. We find that our developed solution methodology reduces the size of network interdiction program substantially and showcases superior computational performance against off-the-shelf optimization solvers. Furthermore, the resilience comparison between hyperconnected networks and lean networks depicts enhanced capabilities of the topology optimized hyperconnected networks to sustain worst-case disruptive events as opposed to that of lean logistics networks.
Enhancing Circular Logistics of Unit Loads by Leveraging Physical Internet Modularization and Consolidation Principles

(Georgia Institute of Technology, 2023-06) Garcia Zamalloa, Jorge ; Barenji, Ali ; Montreuil, Benoit

Returnable Transportation Items (RTI) such as pallets are crucial for any supply chain, however this remains an understudied area in comparison to other subjects in logistics. As part of a case study, this Paper intends to demonstrate the operational benefits that can be achieved by introducing PI concepts of modularization and cargo consolidation into the core process of reparation at an RTI service provider. Different maturity levels of a process were developed based on PI concepts and compared with a baseline to highlight their adaptability to unexpected changes in demand. The results indicate that the implementation of PI concepts could result in significant cost savings and increased supply chain efficiencies.
Dynamic resource deployment in hyperconnected parcel logistic hub networks

(Georgia Institute of Technology, 2023-06) Xu, Yujia ; Klibi, Walid ; Montreuil, Benoit

With the development of e-commerce, one of the major challenges for many parcel logistics companies has revealed to be designing reliable and flexible scheduling and deployment approaches and algorithms to meet uncertainties of parcel arrivals and resource availability in logistic hubs. In this Paper, we want to present models to spatiotemporally adjust the available resource, like workforce and robots, across hyperconnected logistic hub networks using a rolling horizon approach. In most traditional parcel logistic hubs, workers are hired to enable the sorting, consolidation, transshipment, and crossdocking of parcels, and most resource scheduling is periodic (e.g., daily) and limited to single facility, thus the number of required resources in each hub is constrained to meet the peak demand with high variance. We here propose dynamic resource scheduling and deployment mechanisms, that are fed with updated data with sensors and dynamically updated parcel arrival predictions at hubs.
Kit Fulfillment Centers Serving Distributed Small-Series Assembly Centers in Hyperconnected Supply Chain Networks

(Georgia Institute of Technology, 2023-06) Li, Mingze ; Campos, Miguel ; Barenji, Ali ; McGinnis, Leon F. ; Montreuil, Benoit

In the context of Physical Internet (π, PI) enabled hyperconnected supply chain networks, we focus on the design and performance assessment of π-enabled kit fulfillment centers (KFCs) distributed over a territory to concurrently feed multiple agile assembly centers (AACs) in their region. The AAC production is often associated with the realization of major projects for which short product runs are needed. The KFCs are designed to produce multi-level modular container kits (Montreuil et al., 2015). The multi-level kits of the KFCs have 4 levels, task, skill, workstation, and product. The kit assembly processes are categorized into A, B, and C, according to the shape, weight, and size of their parts. The resource balancing and scheduling is done using a mixed integer programming model, whose performance is validated with a comparison experiment using synthetic data for automobile manufacturing. The process design reduces intermediate inventory space between levels of kit production to encourage space efficiency. The modular design of kitting cells enables easy and quick reconfiguration under variable demand. The multi-level modular container kits allow easy and smart transportation in the hyperconnected supply chain network and handling at AACs.
Modeling and Simulation of an Agile Assembly Center in a Physical Internet inspired Manufacturing System

(Georgia Institute of Technology, 2023-06) Campos, Miguel ; McGinnis, Leon ; Montreuil, Benoit

Globalization, high competitiveness, and highly customized products are factors that increase the complexity of product development and production systems. Such complexity makes conventional mathematical or analytical models unsuitable for properly analyzing such systems, for which simulation emerges as an alternative for evaluating, designing, improving, and operating complex systems. This Paper focuses on the design, modeling, and simulation of an agile assembly center (AAC) that produces durable big-sized products with the capacity of serving several projects and clients concurrently leveraging Physical Internet (PI) concepts while embedding the decision-making agents’ intelligence. This work is the cornerstone for implementing a digital twin of an AAC that will help make operational, tactical, and strategic decisions towards improving the performance of PI inspired assembly facilities.
Hyperconnected and Autonomous Distribution System for Societally Critical Products

(Georgia Institute of Technology, 2023-06) Shaikh, Sahrish Jaleel ; Pothen, Ashwin ; Montreuil, Benoit

Societally critical products are crucial for maintaining people's well-being and ensuring the continuity of vital societal operations. However, disruptions can severely impact their supply chains due to increased demand and supply chain disruptions. The Paper defines the importance of these products and presents a conceptual framework for a hyperconnected and autonomous distribution system that encompasses physical, organizational, information, and operational aspects. We present the results of research at Georgia Tech during the COVID19 pandemic, which involved designing and operating an innovative system for efficiently distributing personal protection equipment. The study provides the foundation for a systemic approach to distributing societally critical products, integrating autonomous operations and hyperconnectivity based on Physical Internet concepts. The Paper also discusses the challenges of large-scale adoption, implementation, and operation of such a distribution system.