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Title

A Budgeting Model for the Safety Unit of an Under ConstructionMetro Station in Tehran Using a Robust Optimization

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 Start Page 131 | End Page 137

Abstract

 Background: The construction of metro lines is a high-risk project. Using a budget-basedmodel for the Safety units of Metro Construction projects can help Safety managers to spendoptimal budget allocation. The purpose of this study was to plan a budget model based onSafety unit performance in an under construction metro station for better budget allocationusing Robust Optimization. Methods: To design this model, budget dimensions were identified by the experts and basedon causes and costs of accidents in the past year. Then, constraints of metro workshops wereconsidered. The next step was involved in determining the importance of each dimension. Finally, the Budgeting model was designed using Gurobi software. In order to prove theproposed Budgeting model, as a case study, the model was implemented in one of the metroworkshops. Results: Considering existing constraints, the model revealed that the budget should be atleast 4. 370. 478. 000 rials. Surprisingly, the predicted budget amount was less than theexpended amount in the Safety unit of the project. However, budget allocation to dimensionswas dramatically different. Conclusion: The results showed that the Robust Optimization Budgeting was functionallyand economically optimal. Moreover, there is a need for logical budget distribution.

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