Effective ready mixed concrete supply adjustments with inoperative mixers under stochastic travel times

Shangyao Yan, Wei Chung Wang, Gong Wen Chang, Han Chun Lin

研究成果: 雜誌貢獻期刊論文同行評審

6 引文 斯高帕斯(Scopus)

摘要

The purpose of this study is to develop a systematic scheduling model that will help ready mixed concrete (RMC) carriers/suppliers with effective scheduling adjustment after temporary breakdown of mixers under stochastic travel times. The model is formulated as a mixed integer network flow problem with side constraints that is characterized as NP-hard. The authors employ problem decomposition and relaxation techniques, with a mathematical programing solver, to develop an algorithm that is capable of efficiently solving the problem. A simulation-based evaluation method is also proposed to evaluate the model, joined with a deterministic model, as well as the method currently used in actual operations. Finally, a case study is performed using real operating data from a Taiwan RMC firm. The preliminary results demonstrate that the stochastic model and the solution algorithm could be useful to reduce system cost for the RMC carrier in actual operations.

原文???core.languages.en_GB???
頁(從 - 到)286-300
頁數15
期刊Transportation Letters
8
發行號5
DOIs
出版狀態已出版 - 19 10月 2016

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