Unless otherwise indicated by context, the following
terms and phrases shall mean:
A-WEIGHTED SOUND LEVEL
The sound-pressure level in decibels as measured on a sound-level
meter using the A-weighing network and designated as "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.
AIR COMPRESSOR
A device which draws in air or gas, compresses it and delivers
it at a higher pressure.
CONSTRUCTION
Any activity necessary or incidental to the erection, demolition,
assembling, altering, installing or equipping of buildings, public
or private highways, roads, premises, parks, utility lines or other
property, including but not limited to related activities such as
land clearing, grading, earthmoving, excavating, blasting, filling
and landscaping.
CONSTRUCTION SITE
Any location, including land and water, where construction
takes place.
DECIBEL (db)
A unit for measuring the volume of a sound, equal to the
logarithm to the base 10 of the ratio of the pressure of the sound
and the quantities concerned are proportional to power. (American
National Standards Institute terminology.)
DEVICE
Any machine, mechanism or equipment which is intended to
or which actually produces sound or vibration.
DISCRETE TONE
A sound wave whose instantaneous sound pressure varies essentially
as a simple sinusoidal function of time. (American National Standards
Institute terminology.)
EXHAUST
A system which removes and transports air or gas from a device.
FREQUENCY
A function periodic in time which is the reciprocal of the
period. (American National Standards Institute terminology.)
IMPULSIVE SOUND
A sound of short duration, usually less than one second and
of high intensity, with an abrupt onset and rapid decay. (American
National Standards Institute terminology. Examples include an explosion
or discharge of a firearm.)
L10
The A-weighted sound level measured with slow response that
is exceeded 10% of the time in any one-hour interval. The measurement
time interval need not be one hour, provided that the measurement
results are representative of a one-hour interval.
L90
The A-weighted sound level measured with slow response that
is exceeded 90% of the time in any one-hour interval. The measurement
time interval need not be one hour, provided that the measurement
results are representative of a one-hour interval.
LEAF BLOWER
Any device powered by an internal combustion engine which
emits air and which is used or designed to move leaves, grass, clippings,
dust, dirt or other matter by blowing them with air emitted by such
device.
[Added 12-13-1994 by Ord. No. 291-1994]
MAXIMUM GROSS WEIGHT
The weight of the vehicle unladen, plus the weight of the
maximum load to be carried by such vehicle during the registration
period or the maximum gross weight for which the vehicle is registered,
whichever is greater. (New York State Traffic and Vehicle Law.)
MOTOR VEHICLE
Every vehicle operated or driven upon a public highway which
is propelled by any power other than muscular power. (New York State
Vehicle and Traffic Law.)
MUFFLER
A device for abating the sound of escaping gases of an internal
combustion engine or other sound source.
NOISE-SENSITIVE ZONE
An area adjacent to a site, including but not limited to
any authorized school, church, senior citizen center, day-care center
or hospital, which requires specific noise limitations.
PAVING BREAKER
Any powered construction device that is designed to be used
or is actually used to cut or trench pavement, subbase macadam, gravel,
concrete or hard ground.
PERSON
Includes the singular and plural and also any person, firm,
corporation, association, club, partnership, society or any other
form of association or organization.
PUBLIC HIGHWAY
Any highway, road, street, avenue, alley, public place, public
driveway or any other public way. (New York State Vehicle and Traffic
Law.)
RAILROAD
A railroad operated for public use for conveying people or
property for compensation and includes all material and facilities
used therewith.
RECREATIONAL VEHICLE
Any vehicle which is propelled by any power other than muscular
power that is designed for or capable of cross-country travel, such
as a motorcycle, trailbike or minibike. A "recreational vehicle" is
also classed as a motor vehicle when such "recreational vehicle" is
operated or driven upon a public highway.
SNOWMOBILE
Any self-propelled vehicle designed for travel on snow or
ice.
SOUND
An oscillation in pressure, stress, particle displacement
or other physical parameter in a medium with internal forces. (American
National Standards Institute terminology.)
SOUND LEVEL
The weighted pressure level, measured by the use of a metering
characteristic and the weighing A, B, C. (American National Standards
Institute terminology.)
SOUND-LEVEL METER
An instrument, including a microphone, an amplifier, an output
meter and frequency weighing networks, for the measurement of sound
levels. (American National Standards Institute terminology.)
SOUND-REPRODUCTION DEVICE
Any device that is designed to be used or is actually used
for the production or reproduction of sound, including but not limited
to any musical instrument, radio, television, tape recorder, phonograph
or any other sound-amplifying equipment.
SOUND TRUCK
Any vehicle having mounted thereon or attached thereto sound-amplifying
equipment.
UNREASONABLE NOISE
Any excessive or unreasonably loud sound made with the intent
to or which recklessly creates a risk of disturbing the peace, comfort
or repose of a reasonable person of normal sensitivities, injuring
or endangering the health or safety of a reasonable person of normal
sensitivities or causing injury to plant or animal life or damage
to property or business.
[Added 12-9-1997 by Ord. No. 272-1997; amended 9-16-1998 by Ord. No. 234-1998]
ZONING DISTRICT
Any zone as defined in the Zoning Ordinance of the City of
New Rochelle.