Altuwaim, A and El-Rayes, K (2021) Multiobjective optimization model for planning repetitive construction projects. Journal of Construction Engineering and Management, 147(7): 04021072, ISSN 0733-9364
Abstract
Minimizing the duration of repetitive construction projects such as high-rise buildings and highway construction often requires interrupting the work continuity of construction crews and/or utilizing overtime hours. Available scheduling models for repetitive construction projects can generate optimal trade-offs between minimizing project duration and crew work interruptions; however, they are incapable of minimizing the use of overtime hours. This paper developed a novel multiobjective optimization model for repetitive construction projects that is capable of generating optimal trade-offs among project duration, work interruptions, and overtime use. The model was developed in three main phases (1) a formulation phase that identified all relevant decision variables and formulated the three objective functions of the model; (2) an implementation phase that executed the model computations using multiobjective genetic algorithms; and (3) a performance evaluation phase. The results of this performance evaluation confirmed that the model outperforms existing models in minimizing the use of overtime hours, and generating optimal trade-offs among project duration, crew work interruptions, and overtime use.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | construction management; linear scheduling; multiobjective genetic algorithms; optimization; overtime; repetitive construction |
| Index terms: | high-rise building, scheduling, duration, linear scheduling, highway construction, repetitive construction, computation, performance evaluation, genetic algorithm, implementation |
| Subjects: | building construction, construction type, algorithms, project controls, performance measurement, computational methods, contractual arrangements, civil engineering, operations research |
| Topics: | Digital Applications, Engineering Principles, Construction Technology, Quality Management, Time Control, Procurement |
| Descriptive scope: | 2 PC |
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