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Commission Decision of 21 February 2008 concerning a technical specification for interoperability relating to the ‘rolling stock’ sub-system of the trans-European high-speed rail system (notified under document number C(2008) 648) (Text with EEA relevance) (2008/232/CE) (repealed)

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4.2.6.5.4.Limits for pass-by noise

The limits for pass-by noise are defined at a distance of 25 m from the centreline of the reference track, 3,5 m above the upper surface of the rails for a vehicle speed indicated in Table 18 below. The indicator for the A weighted equivalent continuous sound level is LpAeq,Tp.

The measurements shall be carried out in accordance with EN ISO 3095:2005 with deviations stated in Annex N1.3 and N1.4.

The test train shall consist of:

  • In the case of a trainset, the trainset itself

  • In the case of locomotive, the locomotive to be tested plus four coaches. The pass-by noise of these four coaches LpAeq,Tp measured at 7,5 m from the track centre 1,2 m above the top of rail and at 200 km/h on the reference track shall not exceed 92 dB (A). Alternatively two locomotives of the same type and 8 coaches are permitted to be used in any configuration

  • In the case of coaches, the four coaches to be tested plus one locomotive. The pass-by noise of the locomotive LpAeq,Tp measured at 7,5 m from the track centre 1,2 m above the top of rail and at 200 km/h on the reference track shall not exceed 97 dB (A). Alternatively two locomotives of the same type and 8 coaches are permitted to be used in any configuration.

The two latter cases are defined as a ‘variable formation’ in this section.

The limiting values for the noise emission of the full test train LpAeq,Tp at 25 m 3,5 m above top of rail are given in Table 18.

Table 18

Limiting values LpAeq,Tp for the pass-by noise of rolling stock

Rolling stockSpeed [km/h]
200250300320
Class 1Trainset87 dB(A)91 dB(A)92 dB(A)
Class 2Trainset or variable formations88 dB(A)

A margin of 1 dB(A) is accepted on the values given in table 18

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