It is the purpose and scope of this chapter to provide regulations
defining the maximum sound levels that vehicles, appliances and equipment
shall be allowed to produce at specified distances from these devices
and also to provide for the prohibition of other kinds of prohibited
noises. These regulations and prohibitions are intended to protect
the physical, mental and social well-being of the residents of the
Township.
This chapter shall apply:
A. To all types of vehicles, appliances and equipment, whether privately
or publicly owned.
B. To sounds of any time duration.
C. To both the owner and operator of vehicles, appliances, equipment,
devices, animals or any other object creating noises.
The following devices are exempt from the provisions of this
chapter:
A. Aircraft (except model aircraft).
B. Police, fire, ambulance and other governmental emergency vehicles.
C. Backup alarm devices on trucks and other equipment when installed
and operated in accordance with Society of Automotive Engineers recommended
practice J994, "Criteria for Backup Alarm Devices."
D. Governmental warning devices (i.e., civil defense or fire siren).
All acoustical terminology shall be that contained in ANSI S1.1,
Acoustical Terminology.
ANSI
American National Standards Institute or its successors.
APPLIANCE
Any device or combination of devices used or capable of being
used as a means of accomplishing a desired end, such as a window air-conditioning
unit.
DAY
The twenty-four-hour period starting at local midnight.
DECIBEL (dB)
A unit of sound level which is a division of logarithmic
scale used to express the ratio of the sound intensity of the source
to the intensity of an arbitrarily chosen reference intensity. The
ratio is expressed on the decibel scale by multiplying its "Base 10
logarithm" by 10.
EQUIPMENT
Any devices or combination of devices to accomplish a desired
end, such as a chain saw, bulldozer, etc.
EXCESSIVE NOISE
Excessive noise is that sound which is:
A.
Injurious or which unreasonably interferes with the comfortable
enjoyment of life and property. Measured noise levels in excess of
limits established in this chapter or those specified in valid permits
are declared to be excessive noise.
B.
Annoying to a person of ordinary sensibilities.
FLUCTUATING NOISE
A fluctuating noise is a noise whose sound level varies significantly
with time.
IMPULSIVE NOISE
Impulsive noise is characterized by brief excursions of sound
level. The duration of a single impulse is usually less than one second.
INTERMITTENT NOISE
An intermittent noise is a noise whose sound level exceeds
the ambient noise levels at least twice during the period of observation,
which is one minute or more. The period of time during which the level
of the noise remains at an essentially constant value different from
that of the ambient is on the order of one second or more.
NOISE
Noise is any sound emitted by a person, animal, vehicle,
appliance, equipment or other device and its environmental interaction.
ORDINANCE ENFORCEMENT OFFICER
Any person appointed by the Township with responsibility
to enforce municipal ordinances; any sworn member of the Township
Police Department.
PERIOD OF OBSERVATION
The period of observation is the time interval during which
acoustical data is obtained. The period of observation is determined
by the characteristics of the noise being measured and the instrumentation
being used. The period of observation must be at least as long as
the response time of the instrumentation. The greater the variance
in individual sound level, the longer must be the observation time
for a given expected accuracy of measurement.
PERSON
Either the owner or operator of vehicles, appliances, equipment
or devices.
S.A.E.
Society of Automotive Engineers.
SOUND LEVEL (NOISE LEVEL)
Airborne sound levels are expressed in dB and obtained by
the use of specific frequency-dependent weighting networks, as specified
in the referenced standards. The specific weighting network used must
be indicated by the proper notation. If the A-weighting is employed,
the sound level is identified as dB(A).
SOUND LEVEL METER
A sound level meter is an instrument, or combination of instruments,
which meets or exceeds the requirements for an ANSI Type S1A or Type
S2A sound level meter.
STEADY NOISE
A noise whose level remains essentially constant (i.e., fluctuations
are less than five dB) during the period of observation is a steady
noise.
VEHICLE
Any device, or combination of devices, used for or capable
of being used for transporting persons or property. Vehicles include,
but are not limited to, the following: automobiles, trucks, buses,
motorcycles, motorized bicycles, snowmobiles, scooters, all-terrain
vehicles, go-carts, racers and like devices, farm machinery, industrial
machinery, highway graders, trailers, graders and semitrailers.
The Township of Carroll shall:
A. Have available in convenient form as in a unit the provisions of
this chapter and the recommended practices, rules, regulations and
standards which have been adopted. A copy of the information sources
shall be kept on file in the Township offices.
B. Prepare and maintain records of all orders issued by the noise enforcement
officers and the Appeals Board.
C. By the designated officials, issue all standards, permits, certificates,
notices or other matters required under the provisions of this chapter
and notify all persons concerned of any decisions rendered and provide
such persons with an opportunity to be heard as herein set forth.
D. Establish an advisory committee to investigate and make recommendations
from time to time to the Board of Supervisors with respect to needed
additions or revisions of this chapter.
[Amended 9-10-1996 by Ord. No. 1996-6]
Any person, firm or corporation who shall violate any provision
of this chapter shall, upon conviction thereof, be sentenced to pay
a civil fine in an amount of not less than $100 nor more than $600
in addition to costs and attorneys' fees. Every day that a violation
of this chapter continues shall constitute a separate offense.