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Modelling the resource constrained time-cost-quality-safety risk-environmental impact trade-off using opposition-based NSGA III
Significant amount of attention with several limitations has given to incorporate the environmental impact, safety and quality parameters in construction time-cost trade-off. To alleviate the limitations of existing trade-off models, for the first time, the presented paper provides a resource constrained time-cost-quality-safety risk-environmental impact trade-off (RCTCQSET) model for construction projects. For this purpose, quality of an activity is expressed as quadratic function of its time, safety risk is expressed as fuzzy function of likelihood and severity of safety risk, while dust, gases and noise emissions are taken to assess the environmental impact of construction activities. The paper considers the multi-mode activities, and resources as major constraints in construction projects. Proposed RCTCQSET model is developed using opposition-based non-dominated sorting genetic algorithm III (OBNSGA III), in which generation of initial population and generation jumping are achieved by opposition-based learning. An existing case study project is analysed, and comparison between the outcomes of proposed and existing trade-off models demonstrates the capabilities of developed model. Furthermore, correlation and trade-off plot analysis among TCQSE components and sensitivity analysis of developed model attract the construction professionals for applying the developed model as scheduling decision and explicitly model in construction related projects.
Modelling the resource constrained time-cost-quality-safety risk-environmental impact trade-off using opposition-based NSGA III
Significant amount of attention with several limitations has given to incorporate the environmental impact, safety and quality parameters in construction time-cost trade-off. To alleviate the limitations of existing trade-off models, for the first time, the presented paper provides a resource constrained time-cost-quality-safety risk-environmental impact trade-off (RCTCQSET) model for construction projects. For this purpose, quality of an activity is expressed as quadratic function of its time, safety risk is expressed as fuzzy function of likelihood and severity of safety risk, while dust, gases and noise emissions are taken to assess the environmental impact of construction activities. The paper considers the multi-mode activities, and resources as major constraints in construction projects. Proposed RCTCQSET model is developed using opposition-based non-dominated sorting genetic algorithm III (OBNSGA III), in which generation of initial population and generation jumping are achieved by opposition-based learning. An existing case study project is analysed, and comparison between the outcomes of proposed and existing trade-off models demonstrates the capabilities of developed model. Furthermore, correlation and trade-off plot analysis among TCQSE components and sensitivity analysis of developed model attract the construction professionals for applying the developed model as scheduling decision and explicitly model in construction related projects.
Modelling the resource constrained time-cost-quality-safety risk-environmental impact trade-off using opposition-based NSGA III
Asian J Civ Eng
Sharma, Kamal (author) / Trivedi, Manoj Kumar (author)
Asian Journal of Civil Engineering ; 24 ; 3083-3098
2023-12-01
16 pages
Article (Journal)
Electronic Resource
English