212
S. Simion et al.
0
20
40
60
80
100
785
786
787
788
789
790
791
792
LAeq
Fig. 3 Noise level chart
transported UMS hardness, which would rapidly destroy this protective terry for
damping impact noise at loading);
• lowering limestone dropping height when loading wagons using adjustable
troughs;
• use of individual hearing protection (internal or external antiphons for workers);
• limiting operator’s exposure time to noise.
The measurement of noise emitted by vehicles running on rails and of noise
emitted by road traffic vehicles and equipment requires the measurement of the
noise spectral composition to identify the acoustic characteristics to be met by sound
absorbing/sound insulating panels in order to reduce noise level.
In determination of spectral composition for machinery and equipment listed
above, reference is made to test methodology and sampling manner of signals
specified by standards:
• SR EN ISO 3095: 2006 “Railway applications. Acoustics. Measuring noise
emitted by vehicles circulating on rails”;
• SR EN ISO 11200: 2010 “Acoustics. Noise from machines and equipment. Guide
to the use of basic standards for measurement of sound pressure levels of emissions
at work and other specified positions”;
• SR ISO 1996-1: 2008 “Acoustics. Description, measurement and assessment of
environmental noise. Part 1: Fundamental dimensions and evaluation methods”;
• SR ISO 1996-1: 2008 “Acoustics. Description, measurement and assessment of
environmental noise. Part 2: Measurement of ambient noise levels” and related
standards.
Account will also be taken of the provisions of Directive 2002/49/EC of 25 June
2002 on the assessment and management of environmental noise. In order to identify
the noise spectrum and identify resonance frequencies specific to road traffic vehicles,
specific methods of spectral analysis of noise signals will be presented.
Sound absorbing panels are used to mitigate noise pollution in transport
infrastructure, along railways and other fixed noise sources.
S. Simion et al.
0
20
40
60
80
100
785
786
787
788
789
790
791
792
LAeq
Fig. 3 Noise level chart
transported UMS hardness, which would rapidly destroy this protective terry for
damping impact noise at loading);
• lowering limestone dropping height when loading wagons using adjustable
troughs;
• use of individual hearing protection (internal or external antiphons for workers);
• limiting operator’s exposure time to noise.
The measurement of noise emitted by vehicles running on rails and of noise
emitted by road traffic vehicles and equipment requires the measurement of the
noise spectral composition to identify the acoustic characteristics to be met by sound
absorbing/sound insulating panels in order to reduce noise level.
In determination of spectral composition for machinery and equipment listed
above, reference is made to test methodology and sampling manner of signals
specified by standards:
• SR EN ISO 3095: 2006 “Railway applications. Acoustics. Measuring noise
emitted by vehicles circulating on rails”;
• SR EN ISO 11200: 2010 “Acoustics. Noise from machines and equipment. Guide
to the use of basic standards for measurement of sound pressure levels of emissions
at work and other specified positions”;
• SR ISO 1996-1: 2008 “Acoustics. Description, measurement and assessment of
environmental noise. Part 1: Fundamental dimensions and evaluation methods”;
• SR ISO 1996-1: 2008 “Acoustics. Description, measurement and assessment of
environmental noise. Part 2: Measurement of ambient noise levels” and related
standards.
Account will also be taken of the provisions of Directive 2002/49/EC of 25 June
2002 on the assessment and management of environmental noise. In order to identify
the noise spectrum and identify resonance frequencies specific to road traffic vehicles,
specific methods of spectral analysis of noise signals will be presented.
Sound absorbing panels are used to mitigate noise pollution in transport
infrastructure, along railways and other fixed noise sources.