As used in this chapter, the following terms shall have the meanings indicated:
Sound that reaches the point of interest by propagation through air.
Includes all zoning districts classified as business districts and all zoning districts classified as industrial districts pursuant to Chapter 116 of this Code, except the Hospital Accessory District and the Medical District.
All engine- or motor-powered equipment intended for infrequent service work in inhabited areas, typically requiring commercial or skilled operators. Examples of commercial service equipment are chain saws, log chippers, paving rollers, etc.
Any powered device or equipment designed and intended for use in construction. Examples of construction devices are air compressors, bulldozers, backhoes, trucks, shovels, derricks and cranes.
The abbreviation for decibel.
The A-weighted sound level in decibels as measured by a general purpose sound-level meter complying with the provisions of the American National Standards Institute Specifications for Sound Level Meters (ANSI S1.4 1971), properly calibrated and operated on the A-weighting network.
A unit for measuring the volume of a sound, equal to the logarithm of the ratio of the sound pressure of the sound to the sound pressure of a standard sound (0.0002 microbar) abbreviated "dB."
The number of oscillations per second expressed in hertz (abbreviated "Hz").
All engine- or motor-powered garden or maintenance tools intended for repetitive use in residential areas, typically capable of being used by a homeowner. Examples of homeowner's light residential outdoor equipment are lawn mowers, garden tools, riding tractors, snowblowers, snowplows, etc.
The abbreviation for hertz, equivalent to cycles per second.
The presence of that amount of acoustic energy for that amount of time necessary to:
Cause temporary or permanent hearing loss in a person exposed;
Otherwise be injurious or tend to be, on the basis of current information, injurious to the public health or welfare;
Cause a nuisance;
Exceed standards or restrictions established herein; or
Interfere with the comfortable enjoyment of life and property or the conduct of business. The following are deemed to interfere with the comfortable enjoyment of life and property or the conduct of business:
Yelling, shouting, hooting, whistling or singing on the public streets or from private property at any time that annoys or disturbs the quiet comfort or repose of persons in the vicinity; and that such noise is plainly audible at a distance of 50 feet from the area, building, structure or vehicle from which such noise emanates.
The using of, operating of or permitting to be played, used or operated any radio, receiving set, musical instrument, phonograph, television set or other machine or device for the producing or reproducing of sound in such manner as to disturb the peace, quiet and comfort of the neighboring inhabitants and in such a manner as to be plainly audible at a distance of 50 feet from the area, building, structure or vehicle in which it is located.
Noise emanating from moving, stopped or parked vehicles.
Sound pressure level measured in standard octave bands with a sound-level meter and octave-band analyzer that meet ANSI S1.4 and S1.11 or the latest revision thereof.
An individual, association, firm, syndicate, company, trust, corporation, department, bureau or agency or any other entity recognized by law as the subject of rights and duties.
Includes all zoning districts classified as residence districts, the zoning district classified as the Hospital Accessory District and the zoning district classified as the Medical District pursuant to Chapter 116 of this Code.