All definitions and terminology used in this chapter, not defined in this section, shall be in conformity with applicable publications of the American National Standards Institute (ANSI) or its successor body. In addition, as used in this chapter:
(a) “A-weighted sound level” means the sound pressure level in decibels as measured on a sound level meter using the A-weighting network. The level so read is designated dB (A) or dBA.
(b) “dB (A)” refers to a weighted scale for measuring decibels as defined in the American National Standards Institute Bulletin.
(c) “Decibel” (db) means a unit of sound pressure measurement as defined in the American National Standards Institute Bulletin.
(d) “Heavy motor vehicle” means any motor vehicle with a gross vehicular weight of 8,000 pounds or more.
(e) “Light motor vehicle” means any automobile, van, motorcycle, motor-driven cycle, motor scooter, dune buggy, snowmobile, all-terrain vehicle, gocart, minibike, trail bike or truck with a gross vehicular weight of less than 8,000 pounds.
(f) “Modified exhaust system” means an exhaust system in which the original noise abatement devices have been physically altered, causing them to be less effective in reducing noise, or in which the original noise abatement devices have either been removed or replaced by noise abatement devices which are not as effective in reducing noise as their original devices, or in which devices have been added to the original noise abatement devices so that noise levels are increased.
(g) “Noise level” refers to the A-weighted sound level produced by a motor vehicle.
(h) “Person” means any individual, association, partnership or corporation and includes any officer, employee, department, agency or instrumentality.
(i) “Sound level meter” means an instrument which includes a microphone, amplifier, RMS detector, integrator or time average, output meter and weighting networks and which is used to measure sound pressure levels. Such instrument shall be used for measurement of the intensity of sound and calibrated in decibels as standardized by the American Standard Association. Readings shall be made on a dB (A) scale.
(j) “Traffic noise” means sound made by a motor vehicle operated either on a public right of way or on private property.
(Ord. 81-16. Passed 7-6-81.)