contributor author | Rifat Sonmez | |
contributor author | Mahdi Abbasi Iranagh | |
contributor author | Furkan Uysal | |
date accessioned | 2017-12-30T13:06:05Z | |
date available | 2017-12-30T13:06:05Z | |
date issued | 2016 | |
identifier other | %28ASCE%29CO.1943-7862.0001077.pdf | |
identifier uri | http://138.201.223.254:8080/yetl1/handle/yetl/4245601 | |
description abstract | Despite 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. | |
publisher | American Society of Civil Engineers | |
title | Critical Sequence Crashing Heuristic for Resource-Constrained Discrete Time–Cost Trade-Off Problem | |
type | Journal Paper | |
journal volume | 142 | |
journal issue | 3 | |
journal title | Journal of Construction Engineering and Management | |
identifier doi | 10.1061/(ASCE)CO.1943-7862.0001077 | |
page | 04015090 | |
tree | Journal of Construction Engineering and Management:;2016:;Volume ( 142 ):;issue: 003 | |
contenttype | Fulltext | |