Open AccessInventory-transportation integrated optimization for maintenance spare parts of high-speed trains
Author(s) -
Boliang Lin,
Jiaxi Wang,
Huasheng Wang,
Zhongkai Wang,
Jian Li,
Ruixi Lin,
Jie Xiao,
Jianping Wu
Publication year - 2017
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0176961
Subject(s) - spare part , train , economic shortage , revenue , operations research , computer science , transport engineering , operations management , engineering , business , linguistics , philosophy , cartography , accounting , government (linguistics) , geography
This paper presents a 0–1 programming model aimed at obtaining the optimal inventory policy and transportation mode for maintenance spare parts of high-speed trains. To obtain the model parameters for occasionally-replaced spare parts, a demand estimation method based on the maintenance strategies of China’s high-speed railway system is proposed. In addition, we analyse the shortage time using PERT, and then calculate the unit time shortage cost from the viewpoint of train operation revenue. Finally, a real-world case study from Shanghai Depot is conducted to demonstrate our method. Computational results offer an effective and efficient decision support for inventory managers.