Easttown Township enacts this chapter under its general powers
affecting health, safety and community welfare. This purpose of this
chapter is to establish requirements to prevent and eliminate noise
which may affect the health, safety and welfare of its residents;
impair the constitutional rights of residents; or that may degrade
the quality of life of community members.
This chapter is not intended, and shall not be interpreted to
be, a regulation on the content of protected speech. This chapter
is intended to be content-neutral and regulates the time, place and
manner of protected speech according to constitutional law.
As used in this chapter, the following terms shall have the
meanings indicated:
ALL-TERRAIN VEHICLE (ATV)
Any motorized off-road recreational vehicle capable of cross-country
travel on land, snow, ice, marsh, swampland or other natural terrain,
including, but not limited to, go-carts and multitrack, multiwheel
or low-pressure tire vehicles or similar two-wheel, three-wheel, four-wheel
or belt-driven vehicles, or an amphibious machine. The definition
of ATV excludes golf carts, construction machines, utility vehicles
used for business operations, agriculture, yard work, landscaping,
snow removal or otherwise being used in the reasonable maintenance
of a person's private property, or motorized vehicles being used
for law enforcement, fire, emergency, military or other authorized
governmental purpose.
CONSTRUCTION
Any site preparation, assembly, erection, repair, alteration,
remodeling, or similar action, including demolition and removal of
buildings or structures.
CONTIGUOUS LAND USE
Any land use bordering or abutting, whether divided by real
property boundary or by real property boundary and public street.
CONTINUOUS SOUND
Any sound which is static, fluctuating or intermittent with
a recurrence greater than one time in any fifteen-second interval.
DECIBEL (dB)
A unit of sound level which is a division of a logarithmic
scale used to express the ratio of the sound pressure of the source
or the pressure of an arbitrarily chosen reference pressure; the ratio
is expressed on the decibel scale by multiplying its "base 10 logarithm"
by 20.
DEMOLITION
Any dismantling, destruction, or removal of buildings, structures,
utilities or roadways.
EMERGENCY
Any occurrence or set of circumstances involving actual or
imminent physical trauma or property damage which demands immediate
action.
IMPULSIVE SOUND
Sound of short duration with an abrupt onset and rapid decay
and an occurrence of not more than one time in any fifteen-second
interval. Examples of sources of impulsive sound include, but are
not limited to, explosions and the discharge of firearms.
LAND USE
The actual real use of land and buildings thereon situated
regardless of the zoning or other classification attributed to such
land and buildings.
LEGAL HOLIDAYS
New Year's Day, Martin Luther King Day, Presidents'
Day, Memorial Day, Juneteenth, Fourth of July, Labor Day, Columbus
Day, Veterans' Day, Thanksgiving and Christmas.
NOISE
Any sound which annoys or disturbs humans or which causes
or tends to cause an adverse psychological or physiological effect
on humans.
PLAINLY AUDIBLE SOUND
Any sound that can be detected by a person using his or her
unaided hearing facilities. Words, phrases, or specific noise signatures
need not be discernible or identifiable to be plainly audible.
PROPERTY LINE
The real or imaginary line and its vertical extension which
separate real property owned or controlled by a person from contiguous
real property owned or controlled by another person. The use of property
line for purposes of this chapter refers to the relative or apparent
property delineated and survey-quality precision is not required,
intended or desired.
PURE TONE
Any sound which can be distinctly heard as a single pitch
or set of single pitches. For the purposes of this chapter, a pure
tone shall exist if the 1/3 octave band sound pressure level in the
band with the tone exceeds the arithmetic average of the sound pressure
levels of the two contiguous 1/3 octave bands by five dB for center
frequencies of 500Hz and above, or by eight dB for center frequencies
between 160 Hz and 400 Hz and by 15 dB for center frequencies less
than or equal to 125Hz.
SOUND
An oscillation in pressure, particle displacement, particle
velocity or other physical parameter in a medium with internal forces
that cause compression and rarefaction of that medium. The description
of sound may include any characteristic of such sound, including duration,
intensity and frequency.
SOUND LEVEL
The weighted sound pressure level obtained by the use of
a sound level meter and frequency weighting network, such as A, B,
or C as specified in American National Standards Institute specifications
for sound level meters. If the frequency weighting employed is not
indicated, the A-weighting shall apply.
SOUND LEVEL METER
An instrument which includes a microphone, amplifier, RMS
detector, integrator or time average, output meter and weighting networks
used to measure sound pressure levels. The sound level meter used
for testing purposes in accordance with this chapter shall meet the
current American National Standard Institute specifications.
SOUND PRESSURE
The instantaneous difference between the actual pressure
and the average or barometric pressure at a given point in space,
as produced by sound energy.
SOUND PRESSURE LEVEL
Twenty times the logarithm to the base 10 of the ratio of
the RMS sound pressure to the reference pressure of 20 micropascals
[20 times (10 to the negative sixth power) times N over (m squared)].
The sound pressure level is denoted Lp or SPL and is expressed in
decibels.
Any law enforcement officer with jurisdiction shall have the
power to enforce and administer the terms of this chapter; investigate
complaints and prosecute violations of this chapter. When enforcing
the terms of this chapter, the Township may retain consultants and
engineers with experience in measuring sound levels with the use of
sound level meters.