The following words and terms, when used in
this chapter, shall have the following meanings, unless the context
clearly indicates otherwise.
AMPLITUDE
The maximum displacement of the earth from the normal rest
position. Amplitude is usually reported as inches or mils.
ANSI S3.29-1983
The American National Standard Institute Guide to the Evaluation
of Human Exposure to Vibration in Buildings.
COMMERCIAL/INDUSTRIAL SOURCES
All uses of property other than a residential use shall be
considered a commercial/industrial source, including quasi-commercial
uses.
RESIDENTIAL PROPERTY
Property used for human habitation. "Residential property"
shall not include properties where the only human habitation is comprised
or supervisors, janitors, maintenance personnel, groundkeepers or
guards who are residing on a premises for the convenience of the property
owner or as a condition of employment.
DISCRETE IMPULSES
A ground-transmitted vibration stemming from a source where
specific pulses do not exceed 60 per minute (or one per second).
FREQUENCY
The number of times that a displacement completely repeats
itself in one second of time. Frequency may be designated in cycles
per second (cps) or hertz (Hz).
GROSS VIBRATION
Vibration of a duration or intensity such that it causes
secondary or sympathetic vibrations on an adjoining property. Evidence
of such gross vibration shall include the audible or visible results
of objects in motion, such as the travel of objects, movement of wall
hangings or waves in standing water and/or the clanging of dishes,
glasses, bottles or utensils or windows vibrating in their frames.
IMPACT
An earthborne vibration generally produced by two or more
objects striking each other so as to cause separate and distinct pulses.
MULTI-USE PROPERTY
Any distinct parcel of land used for commercial/industrial
or quasi-commercial on one part and residential on another part. The
commercial/industrial or quasi-commercial use shall act as a source,
and the residential use shall act as a receptor.
PARTICLE VELOCITY
A characteristic of vibration that depends on both displacement
and frequency. If not directly measured, it can be computed by multiplying
the frequency by the amplitude times the factor 6.28. The particle
velocity will be in inches per second when the frequency is expressed
in cycles per second and the amplitude in inches.
QUASI-COMMERCIAL SOURCE
Especially on commercial/residential properties, boilers,
utility provisions, water-pressure pumps, incinerators, elevators,
laundry rooms, garage door closers, health and recreation facilities
and other similar activities.
RESIDENTIAL PROPERTY LINE ON MULTI-USE PROPERTY
The residential building exterior either at the ground or
at any residential floor or, if so designed, the exterior line of
any balcony or terrace. For intrabuilding use, it shall be the interior
of the room affected by the commercial or quasi-commercial activity.
Rooms shall not include halls or closets.
SECONDARY OR SYMPATHETIC VIBRATIONS
The setting in motion of common objects on the receptor property
by the original source vibration. Such items include, but are not
limited to, dishes, glasses, utensils, window frames, wall hangings,
television antennas and standing water.
SENSORY LEVEL OF PERCEPTION
The level that differentiates the presence of the vibration
phenomenon from the background level. The background level is assumed
to be no vibration unless a three-hundred-sixty-degree inspection
of the receptor premises and the source premises indicates otherwise.
VIBRATION
A reciprocating movement transmitted through the earth, both
in horizontal and vertical planes.
VIBRATION PERCEPTION THRESHOLD
The minimum ground- or structure-borne vibration motion necessary
to cause a person to be aware of the vibration by such direct means
as, but not limited to, sensation by touch or visual observation of
moving objects.
No person shall cause, suffer, allow or permit the operation of any source or sources of vibration on industrial, commercial or quasi-commercial property in such a manner as to create a vibration level that exceeds the particular vibration level restrictions as set forth in Table I, or any standard established by §
398-3C,
D,
E,
F or
G, when measured at or within the residential real property line or receiving residential property line on multi-use property.
Any violation of this chapter shall be subject
to the penalty set forth in the violations and penalties section of
the general provisions of the Code of the Town of West New York. Each day that a violation occurs shall be considered a
separate violation for the purposes of the penalty section.