نتایج جستجو برای: open vehicle routing problem

تعداد نتایج: 1363235  

Journal: :Journal of the Operational Research Society 2006

Journal: :Sustainability 2021

How to reduce the accidents of hazardous materials has become an important and urgent research topic in safety management materials. In this study, we focus on half open multi-depot heterogeneous vehicle routing problem for transportation. The goal is determine allocation optimal route with minimum risk cost A novel transportation model presented considering variation loading, types, category. ...

Journal: :international journal of supply and operations management 0
mohammad mirabi department of industrial engineering, ayatollah haeri university of meybod, meybod, yazd, iran nasibeh shokri group of industrial engineering, elm-o-honar university, yazd iran ahmad sadeghieh group of industrial engineering, yazd university, yazd, iran

this paper considers the multi-depot vehicle routing problem with time window in which each vehicle starts from a depot and there is no need to return to its primary depot after serving customers. the mathematical model which is developed by new approach aims to minimizing the transportation cost including the travelled distance, the latest and the earliest arrival time penalties. furthermore, ...

Journal: :European Journal of Operational Research 2008

Journal: :مهندسی صنایع 0
نرگس نوروزی دانشجوی دکتری مهندسی صنایع پردیس دانشکده های فنی دانشگاه تهران رضا توکلی مقدم استاد دانشکدة مهندسی صنایع پردیس دانشکده های فنی دانشگاه تهران محسن صادق عمل نیک دانشیار دانشکدة مهندسی صنایع پردیس دانشکده های فنی دانشگاه تهران صادق خائفی دانشجوی کارشناسی ارشد دانشکدة مهندسی صنایع پردیس دانشکده های فنی دانشگاه تهران

increasing of the distribution efficiency is one of the most objectives of an integrated logistic system developed as a new management philosophy in the past few decades. the problem is examind in two parts: facilities location problem (flp) for long policies and vehicle routing problem (vrp) to meet the customer demand. these two components can be solved separately; however, this solution may ...

Ali Nadizadeh, Yahia Zare Mehrjerdi,

Using Greedy Clustering Method to Solve Capacitated Location-Routing Problem with Fuzzy Demands Abstract In this paper, the capacitated location routing problem with fuzzy demands (CLRP_FD) is considered. In CLRP_FD, facility location problem (FLP) and vehicle routing problem (VRP) are observed simultaneously. Indeed the vehicles and the depots have a predefined capacity to serve the customerst...

H. Larki M. Sayyah M. Yousefikhoshbakht,

One of the most important extensions of the capacitated vehicle routing problem (CVRP) is the vehicle routing problem with simultaneous pickup and delivery (VRPSPD) where customers require simultaneous delivery and pick-up service. In this paper, we propose an effective ant colony optimization (EACO) which includes insert, swap and 2-Opt moves for solving VRPSPD that is different with common an...

Journal: :مدیریت زنجیره تأمین 0
عرفان بابایی تیرکلایی سعید سائیل پور سیدحمید میرمحمدی

this paper discusses the multi-depot vehicle routing problem of heterogeneous fleet of vehicles with time windows for perishable commodities. the objective of the problem is to minimize the total time required for servicing all customers that is equivalent to the total cost. commodities are delivered to the customers with defined time windows by a fleet of heterogeneous vehicles, which have lim...

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