‘Noise Mapping’ of a Railway Network: Validation and Use of a System Based on Measurement of Axlebox Vibration
A series of tests have been undertaken on the French railway system to examine whether a commercially available system based on axlebox accelerometers offers a viable method of measuring amplitudes of railhead roughness that are significant for wheel/rail rolling noise. The HSRCA system that was tested gives repeatable measurements and a good estimate of acoustic roughness provided the measuring speed is similar to that at which the system is calibrated and the dynamic behaviour of the trackform is similar to that on which the system is calibrated.
The tests described below will demonstrate tentatively that the HSRCA offers a promising means of undertaking noise monitoring of a railway network.
KeywordsReference Site Timoshenko Beam Railway Network High Speed Rail Noise Mapping
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- 1.Directive 2002/49/EC of the European Parliament and of the Council of 25 June 2002 relating to the assessment and management of environmental noise, OJEC 189/12, July 18 (2002)Google Scholar
- 2.Asmussen, B., Onnich, H., Strube, R., Greven, L.M., Schröder, S., Jäger, K., Degen, K.G.: Status and perspectives of the ‘Specially Monitored Track. In: Procs of 8th International Workshop on Railway Noise, Buxton, UK, pp. 575–583 (2004)Google Scholar
- 3.Lewis, R.B., Richards, A.N.: A new method for the routine measurement of railhead corrugation. Rail International, 37–41 (February 1986)Google Scholar
- 6.Grassie, S.L.: Corrugation on Australian National: cause, measurement and rectification. In: Procs. of 4th International Heavy Haul Railway Conference, Brisbane, The Institution of Engineers, Australia, National Conference Publication No. 89/12, pp. 188–192 (1989)Google Scholar
- 7.EN ISO 3095:2005. Railway applications – acoustics – measurement of noise emitted by railbound vehicles. CEN, European Committee for Standardisation, Brussels (August 2005) Google Scholar