The following words and terms, when used in
this bylaw, shall have the following meanings unless the context clearly
indicates otherwise:
AMBIENT SOUND LEVEL
The total sound pressure level in the area of interest including
the noise source of interest.
A-WEIGHTING
The electronic filtering in sound level meters that models
human hearing frequency sensitivity.
BACKGROUND SOUND LEVEL
The total sound pressure level in the area of interest excluding
the noise source of interest.
COMMERCIAL AREA
A group of commercial facilities and the abutting public
right-of-way and public spaces.
COMMERCIAL FACILITY
Any premises, property, or facility involving traffic in
goods or furnishing of services for sale or profit, including but
not limited to banking and other financial institutions; dining establishments;
establishments for providing retail or wholesale services; establishments
for recreation and entertainment; office buildings; transportation;
and warehouses.
CONSTRUCTION
Any site preparation, assembly, erection, repair, alteration
or similar action, or demolition of buildings or structures.
C-WEIGHTING
The electronic filtering in sound level meters that models
a flat response (output equals input) over the range of maximum human
bearing frequency sensitivity.
DBA
The A-weighted unit of sound pressure level.
DBC
The C-weighted unit of sound pressure level.
DECIBEL (dB)
The unit of measurement for sound pressure level at a specified
location.
EMERGENCY WORK
Any work or action necessary to deliver essential services,
including, but not limited to, repairing water, gas, electric, telephone,
sewer facilities, or public transportation facilities, removing fallen
trees on public rights-of-way, or to abate any immediate or substantial
threat of damage to life, health or property.
IMPULSIVE SOUND
A sound having a duration of less that one second with an
abrupt onset and rapid decay.
INDUSTRIAL FACILITY
Any activity and its related premises, property, facilities,
or equipment involving the fabrication, manufacture, or production
of durable or nondurable goods.
MEASURING INSTRUMENT
An instrument, such as a sound level meter, integrating sound
level meter or dosimeter, used to measure sound pressure levels conforming
to Type 1 or Type 2 standards as specified in the latest version of
ANSI Standard S 1.4-1983.
MOTOR VEHICLE
Any vehicle that is propelled or drawn on land by an engine
or motor.
MUFFLER
A sound-dissipative device or system for attenuating the
sound of escaping gases of an internal combustion engine.
NOISE
Any sound of such level and duration as to be or tend to
be injurious to human health or welfare, or which would unreasonably
interfere with the enjoyment of life or property throughout the municipality
or in any portions thereof, but excludes all aspects of the employer-employee
relationship concerning health and safety hazards within the confines
of a place of employment.
NOISE CONTROL OFFICER (NCO)
An officially designated agent of the Board of Health trained
in the measurement of sound and empowered to issue a summons for violations
of this bylaw.
NOISE DISTURBANCE
Any sound that:
A.
Endangers the safety or health of any person;
B.
Disturbs a reasonable person of normal sensitivities;
or
C.
Endangers personal or real property.
PERSON
Any individual, corporation, company, association, society,
firm, partnership, joint-stock company, the municipality or any political
subdivision, agency or instrumentality of the municipality.
PUBLIC RIGHT-OF-WAY
Any street, avenue, boulevard, road, highway, sidewalk, or
alley that is leased, owned, or controlled by a governmental entity.
PUBLIC SPACE
Any real property or structures thereon that is owned, leased,
or controlled by a governmental entity.
PURE TONE
Any sound that can be judged as a single pitch or set of
single pitches by the NCO.
REAL PROPERTY LINE
Either the imaginary line, including its vertical extension,
that separates one parcel of real property from another, or the vertical
and horizontal boundaries of a dwelling unit that is one in a multi-dwelling-unit
building.
RESIDENTIAL AREA
A group of residential properties and the abutting public
rights-of-way and public spaces.
RESIDENTIAL PROPERTY
Property used for human habitation, including but not limited
to:
A.
Private property used for human habitation;
B.
Commercial living accommodations and commercial
property used for human habitation;
C.
Recreational and entertainment property used
for human habitation; and
D.
Community service property used for human habitation.
SOUND LEVEL
The instantaneous sound pressure level measured in decibels
with a sound level meter set for A-weighting on slow integration speed,
unless otherwise noted.
SOUND PRESSURE LEVEL (SPL)
Twenty multiplied by the logarithm, to the base 10, of the
measured sound pressure divided by the sound pressure associated with
the threshold of human hearing, in units of decibels.
WEEKDAY
Any day, Monday through Friday, that is not a legal holiday.
If any provision of this bylaw is held to be
unconstitutional, preempted by federal or state law, or otherwise
invalid by any court of competent jurisdiction, the remaining provisions
of the bylaw shall not be invalidated.
This bylaw shall take effect upon its approval
by the Attorney General of the Commonwealth of Massachusetts, and
is posted and published by the Town Clerk of Dalton, Massachusetts
in accordance with MGL c. 40, § 32; and is intended to apply
to all preexisting noise pollution as of that date.