A Capacitated Vehicle Routing Problem With Synchronized Pick-Ups and Drop-Offs: The Case of Medication Delivery and Supervision in the DR Congo

Clarke, John; Gascon, Viviane; Ferland, Jacques A.

doi:10.1109/tem.2017.2673541

Cited by 10 publications

(13 citation statements)

References 20 publications

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“…The HL problem is presented in [55], where the total travel cost is minimised by synchronising the on site visit with delivery of medical supplies. The real case of the Democratic Republic of Congo (DR Congo) is taken to present the two problems that are faced by the hospital administration in maintaining the pharmacy in a rural hospital as well as the high cost of dropping and picking up a supervisor for an on site visit to rural hospital.…”

Section: Heuristics and Local Search In Supply And Delivery Vrpsmentioning

confidence: 99%

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Vehicle Routing Optimisation in Humanitarian Operations: A Survey on Modelling and Optimisation Approaches

et al. 2021

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The growing field of humanitarian operations is driven by frequent events of disasters seen in the world today. Within this field, Operations Research (OR) plays a critical role in alleviating the suffering of victims that are impacted by disasters. This paper focuses on the branch of a well-known OR problem, known as the Vehicle Routing Problem (VRP), within the selected scope of humanitarian operations. A total of 123 papers of the last decade are reviewed and classified under the humanitarian operations of supply and delivery, evacuation as well as rescue operations. Besides specific disaster management phases and disaster types, various modelling challenges are highlighted, hinting towards a richer and more complex VRP seen under selected model characteristic classifications. Furthermore, established solution approaches, including hybrid solutions, are highlighted and classified, discussing how they are applied in the context of these humanitarian operations. The inclusion of a machine learning solution approach under the same classification is proposed. Finally, the trend and future outlook of VRP for the suggested humanitarian operations are discussed and highlighted.

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Section: Heuristics and Local Search In Supply And Delivery Vrpsmentioning

confidence: 99%

“…Ref. [55] synced the supervisory visit at a medical centre with the resupply of the pharmacy through PDVRP. Ref.…”

Section: Current Trendsmentioning

confidence: 99%

Vehicle Routing Optimisation in Humanitarian Operations: A Survey on Modelling and Optimisation Approaches

et al. 2021

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“…The logistics infrastructure in developing countries is relatively back ward, and corresponding research on rural logistics focuses on how to break the situation of "starting from scratches". To solve the medication provisions interruption of rural hospitals, Clarke et al (2017) attempted to synchronize rural hospital's medication delivery and field supervision travel routes to solve the issue that the delivery cost of medications is higher than the medications themselves. Under the constraints of synchronization, priority, and frequency of activities, they proposed the Capacitated Vehicle Routing modeling and solved the model, which made the replenishment frequency of medication provisions increased to once per month from once per four months.…”

Section: Table 1 the Difference In Rural Last-mile Research Between Developing Countries And Developed Countriesmentioning

confidence: 99%

Investigation on the Last-Mile Delivery of Rural Logistics Under Crowdsourcing Transportation in China

2021

IJTTE

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Recently, the last-mile delivery problem of rural e-commerce has emerged and became a bottleneck issue, due to the booming development of rural e-commerce which drives the vigorous growth of upstream agricultural products and downstream industrial products. This paper takes rural areas of China as a case study to discuss the last-mile delivery cost under crowdsourcing logistics. Owing to the absence of theoretical guidance on rural crowdsourcing logistics, the paper firstly intends to explore the theoretical framework of rural crowdsourcing logistics in terms of multi-level perspective (MLP). Then, the couriers' willingness coefficient is introduced to develop a mathematical optimization model containing time windows and vehicle capacity constraints, and the heuristic algorithm is applied to solve the model. The final results indicate that the transportation cost and Vehicle Miles Traveled (VMT) can be saved 23.85% and 37.38% respectively, compared with conventional rural logistics. Besides, analysis indicates that under certain conditions the approach of crowdsourcing delivery can be economically competitive and has valuable implication for unchoking the last-mile delivery problem of other similar rural regions.

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“…Various logistics companies need to set up emergency logistics transportation fleets to ensure sufficient capacity and reasonable coordination when the epidemic situation comes. After its establishment, it is necessary to conduct emergency drills from time to time to fully explore the stamina of transportation and, at the same time, pay attention to the connection between port material supply and transportation using GIS and GPS technology to control the emergency logistics transportation in real time and receive the latest developments at any time during the transportation of materials [19,20]. Relevant departments and people must cooperate to provide a "green channel" for emergency logistics and transportation and implement the principle of priority.…”

Section: Emergency Logistics and Transportationmentioning

confidence: 99%

The Robustness and Sustainability of Port Logistics Systems for Emergency Supplies from Overseas

Zheng

Huang

2020

Journal of Advanced Transportation

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When the epidemic comes, in addition to eliminating people’s panic, quickly enacting corresponding laws and implementing corresponding policies, and isolating infected people, providing emergency supplies are of course essential. The purpose of this article is to study the robustness and sustainability of the port logistics system for outbreak emergency supplies from overseas. This paper analyzes the sustainable development capability of the port logistics system for outbreak emergency supplies from overseas and formulates response strategies and robust collaborative optimization methods. The optimized and robust system is obtained through formula derivation and analysis, which realizes the coordinated optimization of emergency logistics infrastructure positioning and emergency rescue vehicle path positioning and minimizes the economic loss caused by the outbreak. Research data show that the shortest path can be planned between each material supply location. The research results show that the proportion of demand fluctuations during the outbreak is 6.5%, the time window needs to be controlled between 0 and 600, and the robustness and sustainability of the port logistics system have saved the time of the entire process by about 45%, greatly optimizing the delivery route and delivery time. The robustness of the logistics system can be widely used in emergency events.

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A Capacitated Vehicle Routing Problem With Synchronized Pick-Ups and Drop-Offs: The Case of Medication Delivery and Supervision in the DR Congo

Cited by 10 publications

References 20 publications

Vehicle Routing Optimisation in Humanitarian Operations: A Survey on Modelling and Optimisation Approaches

Vehicle Routing Optimisation in Humanitarian Operations: A Survey on Modelling and Optimisation Approaches

Investigation on the Last-Mile Delivery of Rural Logistics Under Crowdsourcing Transportation in China

The Robustness and Sustainability of Port Logistics Systems for Emergency Supplies from Overseas

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