Abstract
Tyre/road interaction is the main cause for noise emission
when considering road vehicles travelling faster than
approx. 60km/h. A multitude of aspects play a major
role regarding the overall observed sound pressure
level (SPL), i.e. speed, vehicle type, driving style and
pavement type/condition. The latter, however, facilitates
the possibility of independent tuning of acoustic
properties, e.g. via diamond grinding of concrete pavements
or open-graded asphalts. Investigations regarding
possible emission reductions are often performed using
trailers, wherein installed microphones record the rolling
noise close to the tyre/road contact. Another option is
the analysis of isolated, statistical pass-bys of cars and
trucks. This paper investigates the relationships between
different trailer-based measurement techniques according
to RVS 11.06.64 (RVS-method) and to ISO 11819-2
(CPX-method), as well as between the CPX-method and
the Pass-by-measurements following ISO 11819-2 (SPBmethod)
[1–3]. Comparisons and correlations of pavement
dependent overall SPL and analyses of respective
third-octave bands will be presented. This includes the
use of unsupervised machine learning algorithms allowing
the determination of relevant frequency bands of either
method.
when considering road vehicles travelling faster than
approx. 60km/h. A multitude of aspects play a major
role regarding the overall observed sound pressure
level (SPL), i.e. speed, vehicle type, driving style and
pavement type/condition. The latter, however, facilitates
the possibility of independent tuning of acoustic
properties, e.g. via diamond grinding of concrete pavements
or open-graded asphalts. Investigations regarding
possible emission reductions are often performed using
trailers, wherein installed microphones record the rolling
noise close to the tyre/road contact. Another option is
the analysis of isolated, statistical pass-bys of cars and
trucks. This paper investigates the relationships between
different trailer-based measurement techniques according
to RVS 11.06.64 (RVS-method) and to ISO 11819-2
(CPX-method), as well as between the CPX-method and
the Pass-by-measurements following ISO 11819-2 (SPBmethod)
[1–3]. Comparisons and correlations of pavement
dependent overall SPL and analyses of respective
third-octave bands will be presented. This includes the
use of unsupervised machine learning algorithms allowing
the determination of relevant frequency bands of either
method.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the Forum Acusticum 2023 |
| Place of Publication | Torino |
| Number of pages | 6 |
| Edition | 10 |
| ISBN (Electronic) | 978-88-88942-67-4 |
| Publication status | Published - 15 Sept 2023 |
| Event | Forum Acusticum 2023 - Turin, Italy Duration: 11 Sept 2023 → 15 Sept 2023 |
Conference
| Conference | Forum Acusticum 2023 |
|---|---|
| Country/Territory | Italy |
| City | Turin |
| Period | 11/09/23 → 15/09/23 |
Research Field
- Reliable and Silent Transport Infrastructure