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The Optimal Number of Workers for Job Rotation to Prevent Workers from Occupational Hazards

机译：工作旋转的最佳工作人员，以防止工人来自职业危害

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This paper focuses on the application of administrative control which utilizes the job rotation to prevent workers from occupational hazards at the workplace. In the unsafe workplace, workers in the job rotation program will be assigned to workstations with low or high occupational hazards so that 8-hour exposure to each hazard of all workers will not exceed the permissible exposure limits. When dealing with a high hazard level, the number of workers required for job rotation is possibly more than the number of workstations because some workers in some periods will be assigned to perform tasks in the safe areas. Therefore, this paper proposes the optimization approach to solve the mixed-integer programming models that try to minimize the number of workers used in job rotation under noise hazard and air contamination. The numerical experiments are provided to demonstrate the solution procedures. Finally, the effectiveness of the branch and cut search in an optimization software namely CPLEX is also discussed. Within the computational limit, CPLEX can determine the optimal solutions for small size problems and the feasible solutions for large size problems.
机译：本文重点介绍了行政控制的应用，该控制利用工作旋转来防止工人在工作场所占有职业危害。在不安全的工作场所中，工作轮换计划中的工人将分配给具有低或高职业危害的工作站，以便8小时接触所有工人的每个危险将不会超过允许的曝光限制。在处理高危险级别时，工作旋转所需的工人数量可能超过工作站数量，因为某些时期的一些工人将被分配到安全区域中执行任务。因此，本文提出了解决混合整数编程模型的优化方法，该模型试图最小化噪音危险和空气污染在作业旋转中使用的工人数量。提供了数值实验以证明溶液程序。最后，还讨论了分支和切割搜索在优化软件中的效果即CPLEL。在计算限制内，CPLEX可以确定小尺寸问题的最佳解决方案和大尺寸问题的可行解决方案。

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