Academic Journal
A Bi objective uncapacitated multiple allocation p-hub median problem in public administration considering economies of scales
| العنوان: | A Bi objective uncapacitated multiple allocation p-hub median problem in public administration considering economies of scales |
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| المؤلفون: | Tofighian, Aliasghar, Khamseh, Alireza Arshadi |
| المساهمون: | Khamseh, Alireza Arshadi |
| بيانات النشر: | ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND |
| سنة النشر: | 2021 |
| المجموعة: | IGU Institutional Open Access Repository (İstanbul Gelişim University) |
| مصطلحات موضوعية: | P-Hub median, Imperialist competitive algorithm, Competitive location, Public administration transportation, Economics of scale |
| الوصف: | This paper addresses uncapacitated multiple allocation p-hub median problems, which deals with both the constructors’ and the users’ objectives in order to obtain an economically sustainable system. One objective is maximizing the overall investment return in road and hub construction and the users’ satisfaction is translated by minimization of the overall usage cost. The problem is formulated in a way that can cover three possible policies as: Governmental requirement, constructor’s break-even point and predefined make span. To make these models more pragmatic, variable discount factors are used in preference to fixed ones. Accordingly, a comprehensive discussion about discount factors and their components has been included to justify the use of variable discount factors. Then some meta-heuristic algorithms like the Imperialist competitive algorithm (ICA), and an enhanced variation of a well-known multi-objective genetic algorithm called nondominated sorting genetic algorithm II (NSGA-II) are developed and applied to solve the problem. The performance of algorithms is compared to each other by utilizing some indicators such as hypervolume, ε-indicator, spacing metric, and CPU time. Computational experiments emphasize the need for using stated assumptions and the variable discount factor. It also confirms the efficiency of the proposed ICA. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0739-8859 1875-7979 |
| Relation: | Research in Transportation Economics; Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı; https://hdl.handle.net/11363/5329; 90; 19 |
| الاتاحة: | https://hdl.handle.net/11363/5329 |
| Rights: | info:eu-repo/semantics/openAccess ; Attribution-NonCommercial-NoDerivs 3.0 United States ; http://creativecommons.org/licenses/by-nc-nd/3.0/us/ |
| رقم الانضمام: | edsbas.551BEBBF |
| قاعدة البيانات: | BASE |
| تدمد: | 07398859 18757979 |
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