NOISE CONTROL THROUGH LEGISLATION
Today's noise sources consist of so vast an array of offenders that we make no attempt to enumerate them in any kind of comprehensive manner. The dominant sources in terms of disturbances to many people are: trucks, automobiles, airplanes, trains, industrial manufacturers, construction and air handling. Industrial plant noise levels rise to values known to be destructive to the hearing mechanism. Accurate determination of the sensitivity of ears to noise has taken several decades to establish. Studies had to be indirect and of a statistical nature because the simple direct experiment of testing to destruction is obviously not acceptable in this instance. The difficulties were further compounded by the very wide range of individual hearing susceptibility to noise. This means that conclusions had to be based on enormous quantities of data. Ultimately hundreds of thousands of case histories were studied, and it became possible to define with reasonable precision what percentage of people would lose hearing acuity after exposure to any given noise level for specific durations.
- Proceedings of Purdue Noise Control Conference, Purdue University, 14 July 1971.
Purdue UniversitySchool of Aeronautics and Astronautics
West Lafayette, IN United States 47907
- Karplus, H B
- Publication Date: 1971-7-14
- Features: Figures; References; Tables;
- Pagination: 4 p.
- TRT Terms: Aircraft noise; Case studies; Environment; Hearing loss; Laws; Legislation; Manufacturing; Noise; Noise control; Sound level; Statistics
- Subject Areas: Aviation; Data and Information Technology; Environment; Highways; Law; Safety and Human Factors; Terminals and Facilities;
- Accession Number: 00261041
- Record Type: Publication
- Files: TRIS
- Created Date: Oct 22 1974 12:00AM