§ 8.53.010. Definitions.

As used in this Chapter, unless otherwise specified, the following definitions shall apply:

A.

"Ambient noise" is the noise which exists at a point of measurement in the absence of the sound emitted by the source being measured, being the total effect of all other sounds coming from near and far.

B.

"dB(A)" means sound levels in decibels measured on an "A" scale of a standard sound level meter having characteristics defined by the American National Standards Institute, publication S 4-1970.

C.

"Decibel" means the sound pressure level, in a logarithmic unit used to express the magnitude of sound pressure with respect to a reference sound pressure. It is defined as twenty (20) times the logarithm to the base ten (10) of the ratio of the sound pressure to the reference sound pressure. By international standards, the reference sound pressure is 2 x 10 _-5 newtons/meter squared. For example, a doubling of sound pressure, at any magnitude, will result in a six (6) decibel increase in sound pressure level; a tenfold increase will result in a twenty-decibel increase in sound pressure level.

D.

"Emergency work" is work made necessary to restore property to a safe condition following a public disaster or work required to protect persons or property from exposure to danger or potential danger.

E.

"Health" is defined as an optimal state of physical, mental, and emotional well-being and not merely the absence of disease.

F.

"Motor vehicle" means a vehicle propelled by its own power and designed or used to transport persons or property upon the ways of the state open to the public.

G.

"Reasonable person" is a normal, healthy person of ordinary habits and sensibilities who is entitled to enjoy ordinary comfort of human existence and not the extra-sensitive or fastidious person or the hardened individual inured to such irritation or annoyance.

H.

"Person" means any person, firm, association, co-partnership, joint venture, corporation, or other public or private entity.

I.

"Zoning" for the purpose of this Chapter, includes the following:

1.

"Residential Area":

i.

R-1 Single-family suburban;

ii.

R-2 Single-family medium density;

iii.

R-3 Single-family high density;

iv.

R-5 Multi-family residential medium density;

v.

R-6 Multi-family residential high density;

vi.

R-10 Mobile home park;

vii.

POS Parks and open space; and

viii.

PUD Planned unit development.

2.

"Light commercial" includes:

i.

C-1 Neighborhood commercial.

3.

"Heavy commercial" includes:

i.

C-2 General commercial;

ii.

C-3 Highway commercial;

iii.

C-4 Central business core;

iv.

C-5 Central business periphery;

v.

M-1 Mixed-use;

vi.

M-2 Mixed-use transitional; and

vii.

PLI Public lands and Institutional.

4.

Industrial" includes:

i.

I-1 Light industrial;

ii.

I-2 Heavy industrial; and

iii.

GFIA Great Falls International Airport.

(Ord. 3181, 2018)