University of Tehran Press Advances in Industrial Engineering 2783-1744 51 2 2017 06 22 Location-Routing Problems: A Review of Concepts, Models, Methods and Research Gaps مسائل مکان‌یابی- مسیریابی: مروری بر مفاهیم، مدل‌ها، روش‌های حل، کاربردها و شکاف‌های تحقیقاتی 223 250 62214 10.22059/jieng.2017.62214 EN Atefeh Kahfi-Ardakani Faculty of Industrial Engineering, Payame Noor University, Tehran, Iran Seyed Mohammad Seyyed-Hosseini Faculty of Industrial Engineering, Iran University of Science and Technology, Tehran, Iran Reza Tavakkoli-Moghaddam Faculty of Engineering, University of Tehran, Iran Journal Article 2016 12 12 A location-routing problem is a kind of location problem with the routing aspects. Although the basic idea of simultaneously solving the two problems started on 1961, and it has been done a lot of researches on this issue, but a comprehensive review of the problem literature in this paper, has identified research gaps, which indicates the potentiality of this problem in new studies. This paper surveys 303 related published researches. in which the large number of survey focuses on the location-routing problem in different periods, in this research, based on a comprehensive review of the problem definition, it is studied the different aspects and indexes, type of LRPs, type of objectives, categories of LRPs and solution methods with the authors’ proposed reforms. Finally, research gaps and recommendations for future studies are explained. https://aie.ut.ac.ir/article_62214_bcec3390ae6b4060671a16ab75e135ce.pdf