Conveners
A21.04 Railway noise and vibration: P521
- Christopher Knuth (Empa)
- Karoline Alten (AIT Austrian Institute of Technology)
- Slimane Ouakka (Empa)
A21.04 Railway noise and vibration: S154
- Slimane Ouakka (Empa)
- Christopher Knuth (Empa)
- Karoline Alten (AIT Austrian Institute of Technology)
A21.04 Railway noise and vibration: S321
- Karoline Alten (AIT Austrian Institute of Technology)
- Christopher Knuth (Empa)
- Slimane Ouakka (Empa)
A21.04 Railway noise and vibration: S322
- Slimane Ouakka (Empa)
- Christopher Knuth (Empa)
- Karoline Alten (AIT Austrian Institute of Technology)
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Helena Steine Tysland (NTNU)09/09/2026, 09:00A21 Transportation Noise and Vibration
This paper investigates the relationship between train speed and acceleration amplitude measured through axleโbox acceleration (ABA) at insulated rail joints (IRJs) on the Norwegian railway network, using the trackโrecording vehicle Roger 1000. A total of 56 passages (from two IRJs) recorded with a triโaxial piezoelectric accelerometer mounted near the axle box on the leading wheelset were...
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Robert Arcos (Universitat Politรจcnica de Catalunya)09/09/2026, 09:20A21 Transportation Noise and Vibration
Ground-borne vibration induced by railway traffic is a growing concern in densely populated urban environments. Railway-induced ground-borne noise and vibration prediction tools are valuable assets when implementing or upgrading railway systems, as well as when constructing new civil structures near existing operational lines. Railway-induced vibration simulations are typically computationally...
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Tatiana Teixeira (InAcoustics)09/09/2026, 09:40A21 Transportation Noise and Vibration
The vibration transfer function method employed by the Portuguese National Laboratory of Civil Engineering (LNEC), based on the FTA methodology, is a predictive and diagnostic approach used to evaluate the propagation of vibrations from railway traffic through the ground and into buildings, causing structural vibrations and re-radiated noise.Approximately 30 surface points representative of...
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Karoline Alten (AIT Austrian Institute of Technology)09/09/2026, 10:00A21 Transportation Noise and Vibration
Onboard measurement systems installed on rail-bound vehicles have emerged as an effective means of monitoring the interaction between rolling stock and track infrastructure under real operating conditions. The systems can be deployed either on in-service passenger vehicles or on dedicated inspection units and typically integrate a range of sensing technologies. The present study investigates...
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Maximilian Mantel (Technische Universitรคt Berlin)09/09/2026, 10:40A21 Transportation Noise and Vibration
Accurate simulation of noise generation and propagation during train pass-bys remains a persistent challenge in railway acoustics. Most current rolling noise models are forced into a compromise, suffering from either oversimplified assumptions or expensive computational demands. To address this, the present work introduces the fundamental framework for ROLLAND, a novel time-domain model. By...
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Chakib Drias (Empa)09/09/2026, 11:00A21 Transportation Noise and Vibration
Railway vehicle hunting motion is associated with lateral and yaw oscillations of the wheelset on the rails, induced by the conical shape of the wheel tread.During this motion, the wheel-rail contact moves laterally on the wheel tread and rail head, affecting the dynamics of both structures. This study investigates the influence of the lateral contact position on wheel and rail vibrations and...
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Slimane Ouakka (Empa)09/09/2026, 11:20A21 Transportation Noise and Vibration
Railway rolling noise is generated by the vibrations of wheel and track components induced by the wheel-rail roughness interaction. Most existing modelling approaches focus on the wheel and rail as the dominant sources, while sleepers are generally simplified. This study comprehensively evaluates the sleeper contribution by combining a reduced-order multi-sleeper track model with a wheelset...
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Leo Heggem Hauge (SINTEF)09/09/2026, 14:20A21 Transportation Noise and Vibration
The primary objective of the RailNoise project is to enable reliable railway noise calculations using the calculation methods Nord2000 and CNOSSOS-EU. This requires gathering source emission data for both methods representing all operational train classes currently in regular use, and addressing limitations within standard CNOSSOS-EU, which lacks the 1/3-octave band resolution and maximum...
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Domenico Tallarico (Stadler Rheintal AG)09/09/2026, 14:40A21 Transportation Noise and Vibration
Measuring audible signals in train driverโs cabs currently lacks a normative measurement procedure. New rolling stock must comply with the TSI LOC&PAS which requires the signal level to exceed the background noise level in the cab by 6 dB at maximum speed. Compliance can be demonstrated by direct measurement of the sound pressure level of each sound in the driverโs cab in accordance with EN...
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Martin Czuka (AIT Austrian Institute of Technology)09/09/2026, 15:00A21 Transportation Noise and Vibration
Rail traffic is considered a sustainable mode of transport for people and goods. Nevertheless, rail traffic contributes significantly to noise pollution in Europe. Previous studies suggest that established A-weighted sound pressure level metrics describe the evoked noise annoyance by railway noise only to a limited extent. In addition to psychoacoustic factors, non-acoustic factors (e.g.,...
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Joan Sapena (ALSTOM Transport SA)09/09/2026, 15:20A21 Transportation Noise and Vibration
Tonal noise from rolling stock is addressed in railway through dedicated indicators, but its perceptual relevance in real operation is still difficult to quantify. This paper reports in-situ perception studies performed by Alstom and ADIF in collaboration with the Instituto de Biomecร nica de Valรจncia. The work was carried out within the European project FP4 Rail4Earth (Grant Agreement ID:...
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Berkay Kullukcu (FG Maschinendynamik und Akustik, Technische Hochschule Wildau)09/09/2026, 15:40A21 Transportation Noise and Vibration
Preload loss in bolted joints alters structural stiffness,damping, and nonlinearity. This paper evaluates ashaker-based vibro-acoustic method on a rail-vehicle-inspiredbeam assembly. The central M10 fastener(S2) in a three-bolt lap joint between two steel beams,representing bolted interfaces on carbody and roof-mountedcomponents, was tested at 0%, 20%, 40%,and 80% preload. A triaxial...
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