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http://hdl.handle.net/10397/89155
Title: | Sustainable ship loading planning for prefabricated products in the construction industry | Authors: | Yi, W Phipps, R Wang, H |
Issue Date: | 1-Nov-2020 | Source: | Sustainability, 1 Nov. 2020, v. 12, no. 21, 8905, p. 1-12 | Abstract: | This paper focuses on sustainable transportation of prefab products from factories to construction sites by ship. Since the transportation cost for all the prefab products of a construction site is mainly dependent on the number of cargo holds used on ships, a loading plan for prefab products that minimizes the number of holds required is highly desirable. This paper is therefore devoted to the development of an optimal loading plan that decides which prefab products are loaded into each cargo hold and how to pack these prefab products into the holds so that as few holds as possible are used. We formulate the problem as a large-scale integer optimization model whose objective function is to minimize the total number of cargo holds used and whose constraints represent the cargo hold capacity limits. We develop a heuristic to solve the problem and obtain a high-quality solution. We have tested the model and algorithm on a case study that includes 20 prefab products. We find that different cargo holds carry prefab products that have quite different densities. Moreover, the orientations of many prefab products are different from their default orientations. The results demonstrate the applicability of the proposed model and algorithm. | Keywords: | Logistics in construction Prefabrication product loading plan Sustainable shipping |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Sustainability | EISSN: | 2071-1050 | DOI: | 10.3390/su12218905 | Rights: | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). The following publication Yi, W., Phipps, R., & Wang, H. (2020). Sustainable ship loading planning for prefabricated products in the construction industry. Sustainability (Switzerland), 12(21), 8905, 1-12 is available at https://dx.doi.org/10.3390/su12218905 |
Appears in Collections: | Journal/Magazine Article |
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