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Discrete OBNSGA III method-based robust multi-objective scheduling model for civil construction projects

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Abstract

Despite many existing research studies for multi-objective scheduling, the problems of scheduling of large-scale construction projects are not solved with much success due to the many computational complexities. The primary purpose of presented paper is to deliver a discrete opposition-based non-dominated sorting genetic algorithm III (D-OBNSGA III) method-based robust multi-objective scheduling model (RMOSM) for small, medium and large-scale construction projects. With the multi-mode activities and discrete resources as major constraints in project, the developed RMOSM is designed to estimate the Pareto-optimal solutions for projects’ scheduling in terms of combinations of optimum execution modes of construction activities. For the first time, instances of time–cost-resource-quality-safety-environmental impact trade-off (TCRQSET) problems involving up to 1260 activities are solved in paper to reveal the applicability of developed model. Generating the high-quality solutions with minor average percentage deviation (APD) from ideal point within seconds, is the main advantage of using developed RMOSM for solving the large-scale multi-objective scheduling problems (MOSPs). Moreover, comparison with existing scheduling models, value path plots analysis, correlation analysis and sensitivity analysis of algorithm attract the construction managers to use the developed model in scheduling of real-life construction projects.

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Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.

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The authors received no financial support for the research, authorship and/or publication of this article.

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Kamal Sharma and Manoj Kumar Trivedi both conducted the research work together and wrote the manuscript.

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Correspondence to Kamal Sharma.

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Sharma, K., Trivedi, M.K. Discrete OBNSGA III method-based robust multi-objective scheduling model for civil construction projects. Asian J Civ Eng 24, 2247–2264 (2023). https://doi.org/10.1007/s42107-023-00638-w

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  • DOI: https://doi.org/10.1007/s42107-023-00638-w

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