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001-es BibID:	BIBFORM090180
Első szerző:	Le Thi Diem Chau (PhD hallgató)
Cím:	Optimal vehicle routes schedules in picking up and delivering cargo containers considering time win-dow in Logistics distribution networks: A case study / Thi Diem Chau Le, Duy Duc Nguyen, Judit Oláh, Miklós Pakurár
Dátum:	2020
ISSN:	2353-7779
Megjegyzések:	This study describes a pickup and delivery vehicle routing problem, considering time windows in reality. The problem of tractor truck routes is formulated by a mixed integer programming model. Besides this, three algorithms - a guided local search, a tabu search, and simulated annealing - are proposed as solutions. The aims of our study are to optimize the number of internal tractor trucks used, and create optimal routes in order to minimize total logistics costs, including the fixed and variable costs of an internal vehicle group and the renting cost of external vehicles. Besides, our study also evaluates both the quality of solutions and the time to find optimal solutions to select the best suitable algorithm for the real problem mentioned above. A novel mathematical model is formulated by OR tools for Python. Compared to the current solution, our results reduced total costs by 18%, increased the proportion of orders completed by internal vehicles (84%), and the proportion of orders delivered on time (100%). Our study provides a mathematical model with time constraints and large job volumes for a complex distribution network in reality. The proposed mathematical model provides effective solutions for making decisions at logistics companies. Furthermore, our study emphasizes that simu-lated annealing is a more suitable algorithm than the two others for this vehicle routing problem.
Tárgyszavak:	Társadalomtudományok Gazdálkodás- és szervezéstudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Production Engineering Archives. - 26 : 4 (2020), p. 178-184. -
További szerzők:	Duy Duc Nguyen (közgazdász) Oláh Judit (1973-) (agrárközgazdász, logisztika) Pakurár Miklós (1959-) (agrárökonómus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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