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Noise control

We intend to cut train noise in half by 2020 (based on 2000 values) to help create a quieter environment for residents living near rail lines: by implementing the noise abatement program and using whisper brakes on freight cars.


Noise mitigation and pollution prevention continue

Noise mitigation and pollution prevention in Germany201820172016  
Noise mitigation 

Sound barriers erected annually (km)

45

20

36

Homes with passive measures

(No. per year) 1)

2,248

1,634

1,495

Total track with noise mitigation, km 1) 

1,758

1,701

1,598

1) Values rounded


The noise abatement program, cumulative.

Since 1999, we have been voluntarily implementing the federal government's program on noise remediation of existing rail lines. On the 3,700-km-long lines identified as particularly affected in Germany, we are building sound barriers and equipping homes with soundproof windows, for example. Of that total, 2,000 km is scheduled to have noise remediation measures carried out by 2020.


Low-noise freight cars

The use of composite brake blocks (CBBs), which minimize abrasion on the wheel surface, can effectively reduce passing freight transport noise by about 10 dB(A), which the human ear perceives as a 50% reduction in noise. There are two different types of CBBs available for this purpose. We have been purchasing new freight cars with K blocks since 2001 and have been retrofitting our existing cars with LL blocks since 2013.

 
Freight cars with CBBs in use in Germany as of Dec. 31
Freight cars with CBBs in Germany 1) 

2018

2017

2016

Total new freight cars

8,470

8,323

8,302

Total retrofitted freight cars

41,939

31,281

24,094

Total low-noise freight cars

50,409

39,604

32,396


More information about noise control at DB is available on the noise control website at www.deutschebahn.com/laerm.