Using the Operations Research Methods to Address Distribution Tasks at a City Logistics Scale

Stopka, Ondřej; Jeřábek, Karel; Stopková, Mária

doi:10.1016/j.trpro.2020.02.032

Cited by 16 publications

(9 citation statements)

References 26 publications

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“…Setting specific criteria is vital for assessing the proper or unsuitable functioning of a system by means of mathematical modelling, which is an indispensable operational research tool. If one examines a transportation system based on the operational research, it is specifically this analysis that uses a model for that system [4][5][6].…”

Section: Methodsmentioning

confidence: 99%

Optimisation of Distribution Routes: A Case Study

Kampf¹,

Hlatká²,

Gross³

2021

Komunikácie

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This article focuses on optimisation of the distribution routes for a company that produces carpets, floor coverings and tapestries. The optimisation process is based on operational research methods including, without limitations, Mayer’s method and the single linkage method. The obtained results are subsequently compared to the current situation and evaluated in terms of time and costs. The conclusion provides the optimised economic solution.

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Section: Methodsmentioning

confidence: 99%

Optimisation of Distribution Routes: A Case Study

Kampf¹,

Hlatká²,

Gross³

2021

Komunikácie

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“…Per Table 2, for notational simplicity, a represents link (i, j , t , t ′ , w, w ′ ), and the pickup state transition value (w ′ − w) for the pickup link is defined as w(a). The pickup constraint (6) was then reformulated as constraint (8).…”

Section: Reformulation Of the Proposed Model By The Alr Approachmentioning

confidence: 99%

“…In the proposed optimization model for the PDPTW, the pickup request satisfaction constraints (8) were the hard constraints in the space-time-state formulation. Through Lagrangian relaxation, Equation ( 8) can be relaxed into the objective function (2) to form Equation (9).…”

Section: Reformulation Of the Proposed Model By The Alr Approachmentioning

confidence: 99%

“…These pose major challenges to logistics distribution, as it keeps transportation cost-efficient and improves the quality of logistics service. Therefore, operations research techniques are adopted to address vehicle routing problem at a city logistics scale and related optimization activities [8]. The collaboration between logistics companies located in the same freight network and simultaneously distributing goods in the same city is also proposed in the routing and scheduling operations [9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Equity‐oriented vehicle routing optimization for catering distribution services with timeliness requirements

Wang

Yang

Yao

et al. 2021

IET Intelligent Trans Sys

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The rapid development in the catering services and urban logistics industries has significantly promoted the prosperity of business-to-consumer (B2C) e-commerce urban logistics distribution, which is gaining increasing interest from food producers, distribution platforms, and consumers. Unlike traditional logistics supply chains, catering distribution services have strong timeliness and consideration of delivery delay. Traditional distribution platforms usually group commodities by their origins or destinations and then transport each group with one logistics vehicle. However, for a logistics distribution area with limited commodities, the vehicle capacity cannot be fully utilized if one vehicle can only transport commodities with the same origin or destination. Therefore, a mixed-load strategy is proposed in which commodities with different origins or destinations in a distribution area could be transported by the same vehicle to improve vehicle capacity utilization. A mixed-load strategy would further cause delivery sequencing problems, leading to different delivery delays for customers. This study proposed an equity-oriented vehicle routing problem for food distribution services with timeliness requirements considering a mixed-loading strategy and vehicle capacity constraints. For the above problem, a multi-commodity flow optimization model was constructed for the equity-oriented vehicle routing problem and a mixed-load strategy based on a time-discretized space-time-state network representation. An augmented Lagrangian relaxation approach was utilized to reformulate the original model and thus effectively solve the proposed model. Furthermore, the augmented Lagrangian model was decomposed and linearized into a series of shortest path searching subproblems and iteratively solved by a dynamic programming algorithm using an alternating direction method of multipliers (ADMM)-based solution framework. Finally, the proposed model and solution approaches were tested on numerous networks.

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“…Centralizácia činností do logistických parkov je efektívna nielen z časového hľadiska, ale aj z ekonomického a tiež ekologického . Zákazníkovi tak môžu byť ponúknuté služby na jednom mieste, čo šetrí čas, peniaze a rovnako to priaznivo vplýva na životné prostredie, pretože sa znižujú dopravné výkony (Stopka et. al., 2020) a tým aj množstvo skleníkových plynov.…”

Section: City Logistické Opatrenia Vo Vybraných šTátoch Eúunclassified

Územné Plánovanie v Sr a Vo Vybraných Štátoch Eú Vo Vzťahu K City Logistike

Škultéty¹,

Beňová²

2021

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Mestská logistika a City logistika sú súhrnnými pojmami pre veľké množstvo koncepcií spájania mestskej nákladnej dopravy a udržateľnosti prostredníctvom znižovania negatívnych prevádzkových a environmentálnych javov. City logistika má naviac za úlohu redukovať náklady na zásobovanie, znižovať požiadavky na zdroje a zlepšovať kvalitu života obyvateľov miest. Príspevok je venovaný problematike spojitosti medzi priestorovým plánovaním a rozvojom City logistiky. Ústrednou tézou je posúdenie implementácie logistických opatrení a logistických centier vo vzťahu k územnému plánovaniu. Cieľ výskumu je komparatívna prípadová štúdia Slovenskej republiky a siedmych vybraných európskych krajín so zreteľom na city logistiku. V štúdií boli taktiež vyhodnocované city logistické opatrenia Amsterdamu, Berlína, Bratislavy, Helsínk, Kodane, Lisabonu, Paríža a Viedne, hlavných miest analyzovaných krajín.

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Using the Operations Research Methods to Address Distribution Tasks at a City Logistics Scale

Cited by 16 publications

References 26 publications

Optimisation of Distribution Routes: A Case Study

Optimisation of Distribution Routes: A Case Study

Equity‐oriented vehicle routing optimization for catering distribution services with timeliness requirements

Územné Plánovanie v Sr a Vo Vybraných Štátoch Eú Vo Vzťahu K City Logistike

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