@article {PIERINGER:2024:0736-2935:9386,
title = "Model-supported analysis of comparative rolling noise measurements on two types of railway tracks",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "2024",
volume = "270",
number = "2",
publication date ="2024-10-04T00:00:00",
pages = "9386-9397",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2024/00000270/00000002/art00045",
doi = "doi:10.3397/IN_2024_4240",
author = "PIERINGER, Astrid and THEYSSEN, Jannik",
abstract = "Rolling noise measurements of in-service trains have been carried out at the demonstrator of a new type of slab track (the "3MB" originally devised in the FP7 Capacity4Rail project) and an adjacent ballasted track section on the iron-ore line in Northern Sweden in May 2023.
The analyses of the measurement data showed an increase in equivalent pass-by sound pressure levels (SPLs) at the slab track compared to the ballasted track, with, on average, about 2 dB observed at 7.5 m from the track. There was, however, a large spread in the results dependent on overall
SPL, train speed, train type, and train individual. In addition to the pass-by measurements, a detailed characterization of track dynamics and rail roughness has been carried out. These latter measurements partially explain the observed differences in SPL, but more insight can be gained with
a comprehensive model for rolling noise adapted to the conditions at the measurement site. In particular, the role of the rail roughness is investigated by simulations.",
}