Rolling stock Railway noise and vibrations

Railway noise and vibration prediction and measurements

Railway noise simulation (noise prediction of railway noise with SoundPLAN software)

Existing or not yet built railways can cause noise nuisance. To prevent unexpected sound levels after construction we can perform noise prediction calculations even before the railways are built finding the best route or implementing some noise mitigation measures.

Some examples of the available calculations standards for railway noise are

BUB:2018 – CNOSSOS-EU Rail:2015 – CoRN:1995 – FTA / FRA-HSGT: 2005 – Israeli Rail:2006 – Japan Narrow Gauge Railways:2008 – NFS 31-133 Rail:2007 – ONR 305011:2009 – RMR:2002 (EU Interim) – Russian Rail – RVE 04.01.02:2019 – Schall 03:1990 – Schall 03:2012 – SEMIBEL – VBUSch:2006.

 

Railway noise prediction

Railway coach internal noise and speech intelligibility

Various ISO regulations are applicable for maximum allowed noise levels and various speeds for train coaches. PA systems used in train cabins as well as on platforms or in tunnels also have to meet speech intelligibility standards. STIPA measurement are designed to benchmark the values.

Train interior noise measurements

Dynamic pass by noise measurements for trains

There are various ISO regulations for measuring noise from trains. Stationary at a station or pass by noise.

Passby noise measurement trains rolling stock

Roughness or rails, rolling noise BS EN 15610:2009

Our engineers can measure vibration levels caused by the train or the wheel/rail interaction to determine or standards are exceeded.

Rail roughness can be a major contributing factor in pass by noise from a train and should be carefully measured and monitored.

Rail roughness measurements EN15610-2009

Polygonal wheelset roughness test system

As mentioned, the interaction between wheels and rail can cause friction, damage and noise. To make sure the wheels are not the cause of the problem polyonal wheelset roughness tests can be performed.
Rail roughness testing