efficient multi-objective optimization algorithms for construction site layout problem

Construction site layout planning is one of the managerial aspects of the construction industry and has significant impacts on performance of the sites. since in real site layout optimization, many objectives are involved, therefore multiobjective algorithms are needed. in this study, multiobjective version of two metaheuristics, cbo and ecbo, are developed and their applicability and performance are checked on a case study. the quality of the results obtained, verify the ability of these algorithms in finding optimal pareto front on this problem. another tool that is utilized in this study is data envelopment analysis (dea) which by calculating the efficiency of optimal pareto front layouts, can help decision makers to select the final layout among the candidates. it should be mentioned that the dea has previously been used in models with multiple inputs and outputs.