Difference between revisions of "Helsinki strategic noise mapping 2007. Numbers of people exposed by noise indicator, noise source, and noise zone"
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Revision as of 13:12, 23 March 2010
This page is a study.
The page identifier is Op_en4132 |
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(This page was structured as suggested in the page Study structure.)
Contents
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):
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 |
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 |