Noise Exposure Levels
There are a number of different calculations for exposure levels for different times of the day, environment and types of noise source.
Noise Exposure Levels can be used to calculate a hygiene level.
Hourly Leq is adopted as the measure of cumulative noise impact for non-residential land uses (those not involving sleep) because:
- Leq′s correlate well with speech interference in conversation and on the telephone - as well as interruption of TV, radio, and music enjoyment.
- Leq′s increase with the duration of events, which is important to people′s reaction.
- Leq′s take into account the number of events over the hour, which is also important to people′s reaction.
- Leq′s are used by the Federal Highway Administration in assessing highway-traffic noise impact.
See also: Community Noise Criteria.
Subjects: Noise & Vibration