Anizar Anizar, Aulia Ishak, Rabeka Gracia Gurusinga, Hermansyah
This study examines the effect of temperature and noise on workers' mental workload and evaluate the effectiveness of job rotation in mitigating these impacts. The manufacturing plant has a temperature of 35.86 degrees Celsius from the pile formation process and a noise level of 89.32 dBA from the process of releasing piles from the mould. High temperatures and noisy work environments cause workers to feel stressed and fatigued, leading to longer task completion times. The factory implements 2 work shifts per day, but if the daily production target is not met, there will be additional work shifts. Who will work in this irregular addition of work shift is also unclear. The extra shift workers come from the second shift workers of that day and the first shift workers the following day. Additional working hours increase the mental workload for the workers. This problem can be solved through job rotation. This research is classified as explanatory research with the object of study being the work environment and workers of the pile manufacturing factory. The mental workload is measured using the subjective workload assessment technique (SWAT). The novelty of this research lies in the design of work rotation based on mental workload, where in 2 shifts, workers rotate every four hours. ©2025 The authors.
Department of Industrial Engineering, Faculty of Engineering, Universitas Sumatera Utara, Medan, 20155, Indonesia; Faculty of Tourism and Hospitality, Universitas Negeri Padang, Padang, 25171, Indonesia
