The Board of Supervisors of Shippensburg Township, finding that
excessive levels of sound are detrimental to the physical, mental
and social well-being of the people, as well as to their comfort,
living conditions, general welfare and safety, and being, therefore,
a public health and welfare hazard, hereby declares it to be necessary
to provide for the greater control and more effective regulation of
excessive sound and the sources of excessive sound within Shippensburg
Township.
This chapter shall be known as the "Shippensburg Township Noise
Control Ordinance."
The following words, terms and phrases, when used in this chapter,
shall have the meanings ascribed to them in this section, except where
the context clearly indicates a different meaning. All terminology
used in this chapter and not defined below shall be in conformance
with the applicable publications of the American National Standards
Institute [ANSI S1.1-1960 (R1971) and its revisions] or its successor
body.
A-WEIGHTED SOUND LEVEL
The sound-pressure level in decibels, as measured on a sound-level
meter using the A-weighted network. The level so read is designated
"dB(A)."
AMBIENT NOISE
The all-encompassing noise associated with a given environment,
being usually a composite of sounds from many sources near and far.
CONSTRUCTION OPERATION
The erection, repair, renovation, demolition or removal of
any building or structure and the excavation, filling, grading and
regulation of lots in connection therewith.
DECIBEL (DB)
A unit for measuring the sound-pressure level, equal to 20
times the logarithm to the base 10 of the ratio of the pressure of
the sound measured to the reference pressure, which is 20 micropascals
(20 micronewtons per square meter).
EMERGENCY
Any occurrence or set of circumstances involving actual or
imminent physical trauma or property damage.
EMERGENCY WORK
Any work performed for the purpose of preventing or alleviating
the physical trauma or property damage threatened or caused by an
emergency.
IMPULSIVE SOUND
Sound of short duration, usually less than one second, with
an abrupt onset and rapid decay. Examples of impulsive sound include
explosions, drop-forge impacts and the discharge of firearms.
NOISE
Any sound which annoys or disturbs humans or which causes
or tends to cause an adverse psychological or physiological effect
on humans.
NOISE DISTURBANCE
Any sound which is in excess of the sound levels by zoning district establishes in §
270-5 of this chapter.
PERSON
Any individual, association, partnership or corporation,
and includes officers, employees, department, agency or instrumentality
of a state or any political subdivision of a state. Whenever used
in any clause prescribing and imposing a penalty, "person" includes
individual members, partners, officers and managers, or any of them,
of partnerships and associations, and as to corporations, the officers
and managers thereof, or any of them.
POWERED MODEL VEHICLE
Any self-propelled airborne, waterborne or landborne plane,
vessel or vehicle which is not designed to carry persons, including
but not limited to any model airplane, boat, car or rocket.
PROPERTY LINE (BOUNDARY)
Any imaginary line drawn through the points of contact of
adjoining lands, apartments, condominiums, townhouses and duplexes
owned, rented or leased by different persons; a demarcation or a line
of separation of properties; and also, for any two or more buildings
sharing common grounds, the line drawn midway between any two said
buildings. All areas devoted to public right-of-way shall be deemed
to be across the property line. For the purposes of this chapter,
the property line includes all points on a plane formed by projecting
the property line in a manner deemed appropriate by the enforcing
officer.
PUBLIC RIGHT-OF-WAY
Any street, avenue, boulevard, highway, sidewalk, alley or
similar place which is owned or controlled by a governmental entity.
PUBLIC SPACE
Any real property or structures thereon which are owned or
controlled by a governmental entity, church or civic organization.
PURE TONE
Any sound which can be heard as a single pitch or a set of
single pitches. For the purpose of this chapter, a pure tone exists
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 octave bands by five dB for center frequencies of 500
Hz and above and by eight dB for center frequencies between 160 and
400 Hz and by 15 dB for center frequencies less than or equal to 125
Hz.
REAL PROPERTY
All land, whether publicly or privately owned, whether improved
or not improved, with or without structures, exclusive of any areas
devoted to public right-of-way.
SOUND
An oscillation in pressure, particle displacement, particle
velocity or other physical parameter in a medium with internal forces
that causes compression and rarefaction of that medium. The description
of sound may include any characteristics 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 (ANSI S1.4-1974, or the latest revision thereof).
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 averager, output meter and any applicable
weighting network used to measure sound-pressure levels which meets
or exceeds the requirement for a Type I or Type II sound-level meter
as specified in ANSI Specification S1.4-1974. The manufacturer's published
indication of compliance with such specifications shall be prima facie
evidence of such compliance.
ZONING DISTRICTS
The land use districts established in Chapter
430, Zoning, of this Code and all subsequent amendments.
The following sounds are exempted from the provisions of this
chapter:
A. Amplified announcements: Electronically-amplified announcements at
athletic events.
B. Blasting. Blasting under permit by the Township. Such blasting may
occur only between the hours of 9:00 a.m. and 4:00 p.m., Monday through
Friday, unless specifically authorized by the Township.
C. Concerts, etc. Church carnivals, concerts, festivals or other performances
or similar activities publicly or privately sponsored and presented
in any public space outdoors shall be exempted from the provisions
of this chapter, provided that:
(1) Such activities do not produce sound 15 dB(A) in excess of the sound
levels set forth in Table 1 of this chapter.
(2) Such activities do not occur between the hours of 11:00 p.m. and
6:00 a.m.
D. Emergency work. Sounds caused by the performance of emergency work
or by the ordinary and accepted use of emergency apparatus and equipment.
E. Municipal and utility services, sounds resulting from the repair
or replacement of any municipal or utility installation in or about
the public right-of-way.
F. Safety concerns. Sounds resulting from such activities as snow removal
or other activity required to alleviate a threat to the safety and
welfare of the residents.
G. School and public activities. Sounds, not electronically-amplified,
created by organized school-related programs, activities, athletic
and entertainment events, or other public programs, activities or
events, other than motor vehicle racing events.
H. Warning devices. Sounds made by warning devices operating continuously
for three minutes or less, except that, in the event of an actual
emergency, the time limitation shall not apply.