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- Title
Long-term versus short-term noise monitoring: Strategies and implications in India.
- Authors
Garg, N.; Saxena, T.K.; Maji, S.
- Abstract
The paper investigates the accuracy of short-term noise monitoring strategies w.r.t. the long-term noise monitoring. The difference in short-term strategies from the annual average representative values obtained from yearly noise monitoring data is quantified as error. Long-term continuous noise monitoring data in terms of monthly averages for 35 locations spread over 7 major cities of India is analyzed. The analysis shows that the error of _3 dBA from annual equivalent level is calculated with 95% probability for LDay (06-22 h) and LNight (22-06 h) value by adopting 1 month noise monitoring strategy. For higher accuracy, the random 2 months strategy is recommended, whereby an error of _2 dBA is achieved with a probability higher than 90%. The study reveals that short-term noise monitoring strategy followed gives a reliable accuracy levels w.r.t. continuous long-term monitoring and thus offers a best practicable and economical option (BPEO) for noise mapping of larger parts of the country.
- Subjects
NOISE control research; ACOUSTICAL engineering; RANDOM noise theory; PROBABILITY theory; NOISE
- Publication
Noise Control Engineering Journal, 2015, Vol 63, Issue 1, p26
- ISSN
0736-2501
- Publication type
Article
- DOI
10.3397/1/376304