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C. Kaseß, T. Maly, W. Kluger-Eigl, H. Waubke:
"Psychoacoustic evaluation of different rumble strip designs";
Vortrag: Internoise 2019, Madrid, Spanien; 16.06.2019 - 19.06.2019; in: "Proceedings of Internoise 2019", (2019), ISBN: 978-84-87985-31-7; 10 S.

The purpose of rumble strips is to alert drivers of potential dangers (e.g. drift off) by causing vibration and audible rumbling inside the vehicle. Unfortunately, as a side effect, rumble strips cause noise and thus annoyance in the surroundings areas, too. The noise emission depends on parameters such as the shape and the depth of the groove as well as the spacing. The aim of the work presented was to evaluate different design parameters of rumble strips in terms of exterior and interior noise as well as the degree of vibration on the seat and the steering wheel. For this, indoor and outdoor recordings using a head and torso simulator were performed for a car and a truck running over 16 different rumble strips. Furthermore, using recordings and the boundary element method synthetic stimuli were produced for strips that could not be produced on the test track. In a lab experiment annoyance (outdoor noise), perceived urgency and reaction time (interior noise) were evaluated based on 16 listeners.
Although the investigation lead to no clear optimal design parameters, enhanced knowledge concerning vehicle dependency as well as the effects of random spacing, sloped grooves, and sinusoidal shapes allow for requirement-specific designs.

psychoacoustic, rumble strips

Projektleitung Norbert Ostermann:
Lärmarme Rumpelstreifen