Helsinki strategic noise mapping 2007. Numbers of people exposed by noise indicator, noise source, and noise zone

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Scope

To find out the numbers of people exposed to traffic noise in Helsinki, as dictated by the Directive for Environmental Noise.

Definition

Following the methodological guidelines of the Directive for Environmental Noise, and implemented as described in detail in the report from the noise consulting company Akukon Ltd.

Result

Data from City of Helsinki noise survey (calculated from 2006 population and traffic data):

Number of Helsinki inhabitants living in areas of traffic noise, per Lden zone and source[1]
Zone, dB Road Train Tram Subway Aviation
55-59 87 200 10 300 11 500 5 700 500
60-64 88 700 3 600 18 800 3 000 0
65-69 46 600 2 600 13 100 900 0
70-74 14 900 200 0 0 0
75 or above 100 0 0 0 0
total 237 500 16 700 43 400 9 600 500
Number of Helsinki inhabitants living in areas of traffic noise, per Ln zone and source[2]
Zone, dB Road Train Tram Subway
50-54 90 200 5 200 17 900 4 500
55-59 49 900 3 000 16 800 1 700
60-64 21 700 800 1 200 0
65-69 400 0 0 0
70 or above 0 0 0 0
total 162 200 9 000 35 900 6 200

See also

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