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contributor authorRifat Sonmez
contributor authorMahdi Abbasi Iranagh
contributor authorFurkan Uysal
date accessioned2017-05-08T22:29:32Z
date available2017-05-08T22:29:32Z
date copyrightMarch 2016
date issued2016
identifier other46722619.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/81479
description abstractDespite the importance of project deadlines and resource constraints in construction scheduling, very little success has been achieved in solving the resource-constrained discrete time–cost trade-off problem (RCDTCTP), especially for large-scale projects. In this paper a new heuristic method is designed and developed to achieve fast and high-quality solutions for the large-scale RCDTCTP. The proposed method is based on the novel principles to enable effective exploration of the search space through adequate selection of the activities to be crashed for a resource constrained schedule, by only crashing the activities with zero float in a resource constrained-schedule, which form the critical sequence. The computational experiment results reveal that the new critical sequence crashing heuristic outperforms the state-of-the-art methods, both in terms of the solution quality concerning project cost and computation time. Solutions with a deviation of 0.25% from the best known solutions are achieved within seconds for the first time, for a large-scale project including up to 2,000 activities. The main contribution of the new heuristic to practitioners and researchers is that it provides a fast and effective method for optimal scheduling of real-life-size construction projects with project deadlines and resource constraints.
publisherAmerican Society of Civil Engineers
titleCritical Sequence Crashing Heuristic for Resource-Constrained Discrete Time–Cost Trade-Off Problem
typeJournal Paper
journal volume142
journal issue3
journal titleJournal of Construction Engineering and Management
identifier doi10.1061/(ASCE)CO.1943-7862.0001077
treeJournal of Construction Engineering and Management:;2016:;Volume ( 142 ):;issue: 003
contenttypeFulltext


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