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ItemEnhancing 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, BenoitReturnable 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.
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ItemKit 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, BenoitIn 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.
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ItemPhysical Internet based Hyperconnected Logistics Platform Enabling Heavy-Duty Machinery Sharing in the Composting Industry: A Simulation-Based Scenario Investigation(Georgia Institute of Technology, 2023-06) Cichocki, Max ; Montreuil, Benoit ; Barenji, Ali ; Landschützer, ChristianComposting plants face significant challenges in meeting increasing quality standards and production rates due to the high costs of essential composting machinery. To address these issues, a Physical Internet based Hyperconnected Logistic Platform for Heavy-Duty Machinery (HLHD) has been proposed. The HLHD system enables composting plant operators to share expensive machinery between plants, allowing for improved efficiency, cost-effectiveness, and enhanced compost production quality The HLHD operates by transporting composting machinery between designated hubs and participating composting plants, where they perform their specific tasks during the composting process. To evaluate the efficacy of the proposed HLHD system, a simulation-based study of three distinct scenarios has been conducted. The first scenario focused on small and medium-sized composting facilities, providing an accessible and cost-effective solution for smaller facilities. In the second scenario, all composting facilities participate in the HLHD to an equal extent, while the third scenario assumed that big composting plants already own the necessary equipment. However, since the utilization of machinery at these large farms is generally low, they participate in the HLHD by serving as hubs once their machinery is idle. Overall, the HLHD system shows great potential in addressing the challenges faced by composting plants. The proposed system can lead to improved resource utilization, enhanced efficiency, and reduced costs, ultimately leading to better quality compost production.
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ItemModular and Mobile Design of Hyperconnected Parcel Logistics Hub(Georgia Institute of Technology, 2021-06) Babalou, Sevda ; Bao, Wencang ; Montreuil, Benoit ; McGinnis, Leon F. ; Buckley, Shannon ; Barenji, AliThis paper employs modularity and mobility (M2) for designing recently introduced hyperconnected logistics hubs (HLH) for the Physical Internet, where parcels are encapsulated in modular tote-sized containers arriving in mobile racks, and these totes are consolidated by switching totes in shuffling cells to mobile racks with other totes with shared next destinations. The paper introduces the M2 framework and its modular standard-sized cells, racks and tote containers. Building on the overall HLH concept, the proposed M2 hub design is a major step forward with its on-the-fly transformability through operations to adapt to the dynamically changing sizes, mixes, characteristics, and flow of modular containers entering the hub and being consolidated and shipped within a short dwell time target. The paper uses a detailed case study to demonstrate the induced adaptability, adjustability, agility, efficiency, resilience, and scalability, and then it reports on an exploratory simulation experiment contrasting the performance of M2designs
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ItemDigital Twin Design Requirements for Durable Goods Distribution in Physical Internet(Georgia Institute of Technology, 2021-06) Campos, Miguel ; Derhami, Shahab ; McGinnis, Leon F. ; Montreuil, Benoit ; Barenji, AliToday the practice for distributing large products manufactured at few original equipment manufacturers (OEMs) consists of a dedicated Point-to-Point (PtP) logistics system, typically requiring long haul transport from the factory to the wholesale destination. A growing problem is the shortage of commercial drivers willing to be away from home for several days to move products cross-country. Hub relay network logistics systems are an alternative solution to P2P logistics systems that allow reducing drivers' away-from-home times. Operating a relay-based logistics system requires accounting for multiple interrelated operational decisions that become more complicated as the system becomes larger and encompasses more players. To deal with such complexity we propose utilizing a digital twin of the distribution and logistics system as a decision-making support tool to manage the system and make operational decisions efficiently. This paper explores the design and assessment of a hyperconnected relay network of transport hubs supporting the movement of durable goods from factory to wholesale destinations. It describes requirements and challenges in developing and implementing a digital twin for such systems.
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ItemDesign of a Simulation-Based Experiment for Assessing the Relevance of the Physical Internet Concept for Humanitarian Supply Chains(Georgia Institute of Technology, 2021-06) Grest, Manon ; Inan, Mahmut Metin ; Cohen, Yaarit M. ; Barenji, Ali ; Dahan, Mathieu ; Lauras, Matthieu ; Montreuil, BenoitThe challenges faced in delivering relief items to victims of natural disasters and the growing external pressures urge humanitarian supply chain organizations to initiate some change. In this regard, the physical internet concept can offer a paradigm shift in relief organization and resource mobilization. To convince humanitarian actors to embrace this path, we propose a rigorous methodology leveraging a prototypical agent-oriented discrete-events simulator built within the AnyLogic platform, to conduct scientific experiments enabling to investigate the suitability and relevance of PI concepts for HSCs by systematically quantifying their benefits and drawbacks on HSC performance, sustainability, and resilience. We provide preliminary experimental results contrasting the baseline shaped by the current HSC structures, behaviors and practices, notably relative to sourcing, transporting, and warehousing, with those of hyperconnected HSCs in line with the Physical Internet at distinct degrees of maturity. In the experiment, we study past disaster scenarios that occurred in Indonesia and response efforts under different behaviors simulated with this platform. Initial results show that PI concepts are smoothly fitted to HSCs and the performance of hyperconnected HSCs is better than the current baseline.