For a scientific analysis of the flicker effect, specific subject tests were carried out in a specially equipped driving simulator at ETH using "virtual reality". Perceptual effects, eye movements, subjective perception and behavioral effects were measured, which are impaired by the simulation of the flicker effect. Collaboration with ETH, scians GmbH and METAS was ensured for the realization of the research project.
The test results show that the flicker effect, which is subjectively perceived as disturbing, is not limited to the medium frequencies (4...15 Hz), but also exists at higher frequencies (16...20 Hz). Higher frequencies worsen the ride quality; this was manifested in the experiment by increased lateral and longitudinal acceleration of the vehicle. Age also increases the poorer ride quality at higher frequencies. In addition, light bands were perceived as significantly more pleasant than point sources.