Unisanté Data repository

An Online Microdata Catalog

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15.04.2025
Bus drivers have mutliple ergonomic constraints in the bus cabin. In Switzerkand, we do not have information on the ergonomics of the bus cabin. To fill this gap, we created a Bus-Ergonomics Matrix (BERM) by analogy with the job-exposure matrix (JEM), assuming that the bus corresponds to their workstation. To do this, we first set up a protocol for measuring the ergonomics of bus drivers workstations, based on literature and work standards. Next, we created ergonomic scores divided according to regions of the human body (global, visual, biomechanical, shoulder girdles, upper body, back, lower body). The measurements were carried out on 10 buses representative of the evolution of the Swiss bus fleet. The scores were then modelled using integrated Laplace approximation (INLA) for the entire Swiss bus fleet.
22.07.2024
Bus drivers are an occupational group exposed to many hazards. However, little information on their exposure to physico-chemical hazards makes it impossible to study their impact on their poor health. To fill this gap, we created a bus-exposure matrix (BEM) by analogy with the job-exposure matrix (JEM), assuming that the bus corresponds to their workstation. To do this, we measured on ten buses representative of the evolution of the Swiss bus fleet. We then modeled the exposure values using integrated nested Laplace approximation (INLA). We use technical bus characteristics such as engine type, suspension, and gearbox as predictors of exposure values. The BEM contains exposures to whole-body vibration, floor vibration, equivalent noise, peak noise, high- and low-frequency electric fields, low-frequency magnetic fields, air exchange rate, and outdoor/indoor particulate pollution ratios for PM10 and ultrafine particles for 710 bus models.

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