HomeMy WebLinkAboutRES CC 1998 1443 1998 0304RESOLUTION NO. 98 -1443
A RESOLUTION OF THE CITY COUNCIL OF THE CITY
OF MOORPARK, CALIFORNIA, ADOPTING AN UPDATE TO
THE NOISE ELEMENT OF THE CITY OF MOORPARK
GENERAL PLAN (GPA- 97 -04)
Whereas, at a duly noticed public hearing on January 12, 1998,
the Planning Commission considered a draft update to the Noise
Element of the General Plan and adopted Resolution No. PC -98 -349
recommending to the City Council that they approve the amendment
proposed by the Commission; and
Whereas, staff conducted an environmental review of the Noise
Element update and has determined that the project is Exempt from
provision of the California Environmental Quality Act (CEQA)
Guidelines, Section 15061; and
Whereas, the City Council held a public hearing on March 4,
1998 to consider the Planning Commission recommendation and accept
public testimony on this matter and has reached a decision on this
matter.
Now, therefore, the City Council of the City of Moorpark,
California, does resolve as follows:
Section 1. The City Council hereby finds that the adoption of
the update to the Noise Element of the General Plan is Exempt from
the California Environmental Quality Act (CEQA) Guidelines by
Section 15061 (b) (3) since the update to the Noise Element does
not have the potential for causing a significant effect on the
environment.
Section 2. That the adoption of the update to the Noise
Element to the General Plan is based upon numerous factors,
including but not limited to the following;
A. The update sets goals and establishes policies and
objectives that will decrease levels of noise source on
new development.
B. The update identifies the existing impacts of noise on
the City of Moorpark.
C. The update identifies the future impact of noise on the
City of Moorpark.
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Resolution No. 98 -1443
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D. The update is consistent with Noise Element guidelines
published by the Governors Office of Planning and
Research (OPR) State of California.
E. The update has been written in such a manner as to be
internally consistent with other elements of the City of
Moorpark General Plan.
Section 3. That the City Clerk shall transmit a copy of the
City of Moorpark adopted Noise Element update to all public
entities, pursuant to Government Code Section 65357.
Section 4. That the City Council finds that the adoption of
the update to the Noise Element of the Moorpark General Plan
identified in Exhibit "A" is substantially the same as that
recommended by the Planning Commission.
Section 5. That this resolution shall take effect immediately.
Section 6. That the City Clerk shall certify to the adoption
of this resolution.
PASSED, APPROVED AND ADOPTED this 4,Yfh lay of IaIch 1998.
ATTEST:
Deborah S. Traffen"stedt
City Clerk
Patrick /Hunter, Mayor
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Resolution No. 98 -1443
Page 3
STATE OF CALIFORNIA )
COUNTY OF VENTURA ) ss.
CITY OF MOORPARK )
I, Deborah S. Traffenstedt, City Clerk of the City of Moorpark, California, do hereby certify under
penalty of perjury that the foregoing Resolution No. 98 -1443 was adopted by the City Council of the
City of Moorpark at a meeting held on the 4th day of March, 1998, and that the same was adopted
by the following vote:
AYES: Councilmembers Evans, Perez, Teasley, Wozniak and Mayor Hunter
NOES: None
ABSENT: None
ABSTAIN: None
WITNESS my hand and the official seal of said City this 16th day of March, 1998.
I S L44
Deborah S. Traffenstedt, &i y Clerk
(seal)
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GENERAL PLAN
NOISE ELEMENT
CITY of MOORPARK
7::16 ••:
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TABLE OF CONTENTS
1.0 INTRODUCTION
1.1 OVERVIEW
1.2 STATUTORY REQUIREMENT
1.3 PURPOSE
1.4 DEFINITIONS
2.0 EXISTING CONDITIONS
3.0 NOISE EVALUATION AND MEASUREMENT
4.0 FINDINGS
5.0 GOAL STATEMENT
6.0 GOALS, POLICIES AND IMPLEMENTATION
APPENDIX
Al TECHNICAL APPENDIX (Separate Cover)
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1.0 INTRODUCTION
Within the City of Moorpark are a number of transportation related noise sources including
freeways, major and minor arterial roadways as well as a railroad line. The existing noise
corridors within the City, include; State Route 118 (SR 118), State Route 23 (SR 23) and
the railroad corridor that bisects the City. In the future, a SR 118 bypass arterial and a SR
23 bypass arterial are proposed to be constructed within the City's boundaries. Effective
strategies to reduce their influence on the community noise environment are an appropriate
and essential part of the Noise Element.
Information relative to the existing and forecast noise environment within Moorpark should
be integrated into future land use planning decisions. The Element provides an analysis
of the noise environment in order that the City may include noise impact considerations in
land development programs.
Residential land uses and areas identified as noise sensitive should be protected from
excessive noise generated by transportation and non - transportation noise sources. The
impacts of transportation noise are most effectively mitigated through the application of
noise standards, goals and implementation strategies established in the Noise Element,
whereas the impacts of non - transportation- noise are most effectively abated through the
enforcement of City noise ordinances or regulations.
Noise, as it has been simply defined, is "unwanted sound ". It is an undesirable byproduct
of transportation elements and industrial, commercial and recreation activities within the
community that affects man's environment and causes disturbance. Physical health,
psychological stability, social cohesion; property values, and economic productivity are
factors negatively affected by excessive amounts of noise. The full effect of such noise on
the individual and the community will vary with its duration, its intensity, and the tolerance
level of the individual.
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1.1 OVERVIEW
The Noise Element of a General Plan is a comprehensive program for including noise
attenuation measures in the planning process. It is a tool for local planners to use to
achieve and maintain compatible land use based upon acceptable environmental noise
levels. The Noise Element identifies noise sensitive land uses and noise sources, and
defines areas of noise impact for the purpose of developing programs to insure that
Moorpark residents will be protected from excessive noise intrusion.
The Noise Element follows the revised State guidelines in Government Code Section
65302(f) (described in more detail in the Technical Appendix Page A -1). The Element
quantifies the community noise environment in terms of noise exposure contours for both
near and long -term levels of growth and traffic activity. The information contained in this
document provides the framework to achieve compatible land uses.
The Element is divided into six sections, including four subsections and an Appendix.
1.0 INTRODUCTION - identifies the noise issues in the City that are to be addressed
within the Noise Element.
1.1 SCOPE OFELEMENTAND AUTHORIZATION - describes the responsible parties.
1.2 S TA TUTORY REQUIREMENT - describes the State of California enabling statutory
codes.
1.3 PURPOSE - presents the objectives of the Noise Element.
1.4 DEFINITION - defines noise terminology used in the Noise Element.
2.0 EXISTING CONDITIONS - summarizes the key noise problems facing the
community.
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3.0 NOISE EVALUATION AND MEASUREMENT - describes and defines the noise
metric system.
4.0 FINDINGS - summarizes the existing and future noise sources in the City.
5.0 GOAL STATEMENT - defines the goals of the Noise Element.
6.0 POLICIES AND IMPLEMENTATION - defines and summarizes the policies and
programs to be implemented by the City to achieve the goals of the Element.
TECHNICAL APPENDIX - contains background information including methodology,
measurement and modeling results, and bibliography.
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1.2 AUTHORIZATION
Recognizing the increasing human environmental impacts of noise pollution and the impact
that local agency land uses and circulation plans have on the community's environmental
quality, the State of California has mandated that a noise element be included as part of
City and County general plans. Guidelines have been prepared as a result of State
Government Code Section 65302(f) (described in more detail in the Technical Appendix
A Page A -1), concerning the specific requirements for a Noise Element which are
responsive to State. guidelines. Within the City of Moorpark, the Community Development
Department is responsible for the coordination of all local sound attenuation and regulatory
activities.
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1.3 PURPOSE
The purpose of the Noise Element is to serve as an official guide to the City Council, the
Planning Commission, City departments, individual citizens, businessmen, and private
organizations concerned with noise pollution within the City of Moorpark. The Noise
Element provides a reference to be used in connection with actions on various public and
private development matters as required by law, and is utilized to establish uniformity of
policy, as well as direction within the City concerning actions to minimize or eliminate
excessive noise through the enforcement of community noise standards and ordinances,
and for making decisions regarding proposals which may have an impact on the City's
environment.
The Noise Element includes definitions, objectives, policies, standards, criteria, programs,
and maps which are to be considered when decisions are made affecting the noise
environment within the City of Moorpark.
The objective of the Noise Element is to establish noise standards, and implement policies
and goals to limit to acceptable levels the noise that is created because of transportation
activities, as well as stationary sources. The purpose of the noise ordinance is to adopt
standards that identify a maximum acceptable level of noise that may be generated by
people, machinery or actively before enforcement action may be appropriate to protect
Moorpark residents from excessive noise intrusion.
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1.4 DEFINITIONS
The following common terms are used throughout the Noise Element:
A- Weighted Sound Pressure Level, dBA (A) - The sound pressure level, in decibels, as
measured on a sound level meter using the A- weighting filter network. The A- weighting
filter de- emphasizes the very low and very high frequency components of the sound in a
manner similar to the response of the human ear and gives good correlation with subjective
reactions to noise.
Ambient Noise - The composite of noise from all sources near and far. In this context,
the ambient noise level constitutes the normal existing level of environmental noise at a
given location.
Amplitude - A measure of the difference between atmospheric pressure (with no sound
present) and the total pressure (with sound present). Although there are other measures
of sound amplitude, sound pressure is the decibel (dBA).
Community Noise Equivalent Level (CNEL) - The average, equivalent A- weighted
sound level during a 24 -hour day obtained by adding five decibels to the hourly noise
levels measured during the evening (from 7:00 p.m. to 10:00 p.m.) and by adding ten
decibels to the hourly noise levels measured during the night (from 10:00 p.m. to 7:00
a.m.). In this way, CNEL takes into account the lower tolerance of people for noise during
the evening and nighttime periods.
Day Night Noise Level (LDN) - Similar to CNEL, except that the evening hours are not
penalized. The LDN is slightly less stringent than the CNEL.
Decibel (dBA) - A unit for describing the amplitude of sound, 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. Because they are logarithmic, decibels are
not additive. If two similar noise sources produce the same amount of noise (say 100 dBA
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. each), the total noise level will be 103 dBA, not 200 dBA. An increase in noise level of 10
dBA is generally perceived as being twice as loud.
Equivalent Sound Level (LEQ) - The sound level corresponding to a steady noise level
over a given sample period with the same amount of acoustic energy as the actual time
varying noise level. The energy average noise level during the sample period.
Exterior Living Space - Open area designed for outdoor living and /or recreation which
has a minimum dimension in any direction of at least 10 feet and excluding required front
and side setback requirements.
Maximum Noise Level - The maximum instantaneous noise level that occurs during a
specific time interval. In acoustics, the maximum sound pressure level is understood to be
for single events unless some other kind of level is specified.
Noise - Annoying, harmful, or unwanted sound.
Noise Barrier - A structure designed to mitigate the impact generated by a noise source
(e.g., an arterial or rail line) at an adjacent noise sensitive location. Barriers should be
continuous structures (without gaps) or designed to achieve the same practical effect and
should be constructed of a material that is impervious to noise (e.g., concrete block,
stucco -on -wood, wood -on -wood, 1/4' tempered plate glass, earthen berm, or any
combination of these or similar materials).
Noise Contour - A line drawn about a noise source indicating constant levels of noise
exposure. CNEL is the metric utilized herein to describe community exposure to noise.
Noise Impact Area - A specific area exposed to significant levels of noise.
Noise Reduction - The ability of a material to reduce the noise level from one place to
another or between one room and another. Noise reduction is specified in decibels.
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Noise - Sensitive Land Uses - Noise - sensitive land uses include, but are not limited to,
residences, schools, libraries, hospitals, churches, offices, hotels, and motels. These typify
land uses where suitability is restricted by intrusive noises. Hence, they are termed
"noise- sensitive ". Noise - sensitivity factors include interference with speech communication,
subjective judgement of noise acceptability and relative noisiness, need for freedom from
noise intrusion, and sleep interference criteria. The Land Use Element of the General Plan
provides a description of the residential areas throughout the City and is considered the
source for the inventory of noise - sensitive areas.
Sound - As used herein, sound is a reaction in the ear caused by radiant energy being
transmitted from a source by longitudinal pressure waves in air or some other elastic
medium.
Sound Level Meter - A measurement instrument containing a microphone, an amplifier,
an output meter, and one or more frequency weighting networks. It is used for the
determination of sound levels.
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2.0 EXISTING CONDITIONS
In the City of Moorpark there are four major sources of noise:
1. Traffic on State Routes 118 and 23
2. Traffic on arterials and local collector roadways
3. Rail traffic on the east/west rail line bisecting the City
4. Commercial, industrial and recreational activities adjacent to residential locations.
Of these, the most serious problems are the noise levels produced by operations on the
State highways, traffic on the major and secondary arterials, and by the railroad. A CNEL
of 70 dBA or greater exists at some residential locations as a result of these sources. An
exterior noise level of 70 dBA or greater exceeds the design noise standard for residential
land uses.
The Noise Element has identified a number of noise related problems and issues within the
City. The policy program consists of policies and implementation techniques that minimize
these problems and issues. Short-term possibilities for noise reduction in Moorpark consist
mostly of the enforcement of noise control guidelines and the appropriate placement of
walls and berms to buffer residential and other noise - sensitive areas from traffic noise.
Long -term possibilities for noise reduction will be contingent upon future development,
especially along major traffic routes, and in the vicinity of the railroads. Planning for these
situations can help to minimize the future impact of noise on the community.
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An
3.0 NOISE EVALUATION AND MEASUREMENT
A description of the character of a particular noise requires the following:
1. The amplitude and amplitude variation of the acoustical wave,
2. The frequency (pitch) content of the noise, and
3. The duration of the noise.
Definitions of the most commonly used terms encountered in community noise
assessments and noise control have been provided as part of the Noise Element. Of these
terms, the A- weighted sound pressure level (identified as dBA {A }) is the scale of
measurement that is most useful in community noise measurement. This sound level is
measured in decibels to provide a scale with the range and characteristics most consistent
with that of people's sensitivity to sounds.
The A- weighted sound level, its application to the CNEL measure of noise exposure, and
its utility in the description of ambient noise levels are discussed in the remainder of this
section.
A- Weighted Sound Level
To establish the A- weighted sound level, the acoustical signal is detected by the
microphone and then filtered to weight those portions of the noise that are most annoying
to individuals. This weighting of sound energy corresponds approximately to the relative
annoyance experienced by humans from noise at various frequencies. The sound levels
of a few typical sources of noise that are routinely experienced by people within the City
of Moorpark are listed in Figure NO. 1.
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•
-The A- weighted sound level of traffic noise and other long -term noise producing activities
within and around a community varies considerably with time. Measures of this varying
noise level are accomplished by obtaining statistical samples. For the purposes of this
study, the following statistical values have been used:
L90 - The near minimum sound level. This value is exceeded 90% of the time during the
measurement period.
L50 - The central tendency of the sound level. This value is exceeded 50% of the time
during the measurement period.
L10 - The near maximum sound level. This value is exceeded 10% of the time during the
measurement period.
Leq - The energy equivalent sound level. This value is most representative of the
long -term annoyance potential as well as other effects of the noise.
These measures-may be recorded to obtain representative samples of the noise during
certain time periods (e.g., peak traffic period, morning, afternoon, night, etc.).
Community Noise Equivalent Level (CNEL)
It is recognized that a given level of noise may be more or less tolerable depending on the
duration of exposure and the time of day during which the noise is experienced. There are
several measures of noise exposure that consider not only the variation of noise level but
also include temporal characteristics. Of these, the State Department of Aeronautics and
the California Commission of Housing and Community Development have adopted the
CNEL. This measure weights the average noise level for the evening hours (from 7:00
p.m. to 10:00 p.m.) by 5 dBA, and the late evening and early morning hours (from 10:00
p.m. to 7:00 a.m.) by 10 dBA. The unweighted daytime noise levels are combined with
these weighted levels and averaged to obtain a CNEL value. Figure 2 indicates the
outdoor CNEL at typical locations throughout the Southern California area.
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FIGURE 1 - REPRESENTATIVE NOISE SOURCES AND SOUND LEVELS
SOUND LEVELS AND LOUDNESS OF ILLUSTRATIVE NOISES
IN INDOOR AND OUTDOOR ENVIRONMENTS
(A - Scale Weighted Sound Levels)
dB(A)
OVER -ALL
COMMUNITY
HOME OR
LOUDNESS
LEVEL
(Outdoor)
INDUSTRY
Human Judgement
Sound Pressure
of Different Sound
Level Approx.
Levels
0.0002
Microbars
130
UNCOMFORTAB
Military Jet Aircraft
Oxygen Torch (12 1)
120 dB(A)
LY -
Take -Off With After -burner
32 Times as Loud
From Aircraft Carrier
@(130)
120
LOUD
Turbo -Fan Aircraft
Riveting Machine
110 dB(A)
1 t 0
G 4 Take Off Power
(110)
16 Times as Loud
@ 200 FL (90)
Rock -N -Roll Band
(108 -114)
100
VERY
Jet Flyover C3a 1000 Ft (103)
100 dB(A)
Boeing 707. DC -S @ 6080 Ft.
8 Times as Loud
Before Landing (106)
Bell J -2A Helicopter @ 100 FL (100)
90
LOUD
Power Mower (96)
Newspaper Press (97)
90 dB(A)
Boeing 737, DC -9 (a3 6080 FL
4 Times as Loud
Before Landing (97)
Motorcycle (a125 Ft (90)
80
Car Wash @20 FL (89)
Food Blender (88)
10 dB(A)
Prop. Airplane Flyover
Milling Machine (85)
2 Times as Loud
(a3 1000 Ft (88)
Garbage Disposal (80)
Diesel Truck, 40 MPH
(a3 50 Ft (84)
Diesel Train, 45 MPH
C3a 100 Ft (83)
70
MODERATELY
High Urban Ambient Sound (80)
Living Room Music
70 dB(A)
LOUD
Passenger Car, 65 MPH
(76)
a 25 FL (77)
TV- Audio,
Freeway (a) 50 Ft From Pavement
Vacuum Cleaner
Edge, 10:00 a.m (76+ or - 6)
60
Air Conditioning Unit
Cash Register
60 dB(A)
(a3 100 FL (60)
(a3 10 FL (65 -70)
/, as Loud
Electric Typewriter
(w 10 Ft (64)
Dishwasher (Rinse)
(a) 10 FL (60)
Conversation (60)
50
QUIET
Large Transfomxrs
50 dB(A)
(a3 100 Ft (50)
1/4 as Loud
40
Bird Calls (44)
40 dB(A)
Lower Limit Urban Ambient Sound
1/8 as Loud
(40)
JUST AUDIBLE
(db (A) Scale Interrupted)
10
THRESHOLD
OF HEARING
SOURCE: Reproduced from Malville C. Branch and R Dale Beland, Outdoor Noise in the Metropolitan Environment Published by the City of Los Angeles, 1970.
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FIGURE 2 - TYPICAL OUTDOOR SOUND LEVELS
CNEL
OUTDOOR LOCATION
-90-
_
Apartment Next to Freeway
3/4 Mile From Touchdown at Major Airport
-80-
_
Downtown With Some Construction Activity
Urban High Density Apartment
-70-
Urban Row Housing on Major Avenue
-60-
_
Old Urban Residential Area
-50-
Wooded Residential
Agricultural Crop Land
-40-
Rural Residential
_
Wilderness Ambient
-30-
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Acceptable Exterior Noise Exposures - CNEL
The CNEL scale is considered acceptable for establishing noise criteria for transportation
related noise for various land use categories. In general, exterior noise exposures at
residential locations should not exceed a CNEL of 65 dBA.
The Environmental Protection Agency (EPA) has recommended a policy stating that a
CNEL of 55 dBA not be exceeded within exterior living spaces. However, the EPA
emphasizes that this level of exposure may not be economically feasible nor, in many
cases, a practical level to achieve.
Acceptable Interior Noise Exposures - CNEL
California's noise insulation standards were officially adopted by the California Commission
of Housing and Community Development in 1974 and became effective on August 22,
1974 (California Administrative Code, Title .25, Section 1092). The ruling states that
"Interior community noise equivalent level (CNEL) with windows closed, attributable to
exterior sources shall not exceed an annual CNEL of 45 dBA in any habitable room."
Additionally, the commission specifies that residential buildings or structures to be located
within exterior CNEL contours of 60 dBA or greater of an existing or adopted freeway,
expressway, parkway, major street, thoroughfare, rail line, rapid transit line, or industrial
noise source shall require an acoustical analysis showing that the building has been
designed to limit intruding noise to an interior CNEL of 45 dBA.
Annoyance and Health Considerations
In general, noise may affect the average individual in the following ways:
1. General hearing loss or damage. Sound levels which exceed 85 dBA(A), when
experienced for long durations during each working day, may result in severe
temporary or even permanent hearing loss. State and federal safety and health
regulations currently protect workers at levels of exposure that exceed 90 dBA(A) for
each 8 -hour workday. Community noise levels are sufficiently low so as to not cause
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hearing loss.
2. Interference with oral communication. Speech intelligibility is impaired when sound
levels exceed 60 dBA(A). The amount of interference increases with sound level and
distance between speaker and listener.
3. Sleep interference. Sound levels that exceed 40 to 45 dBA(A) are generally
considered excessive for sleeping areas within a residence.
4. Contributes to nervousness and tension. Human response to frequent noise loud
enough to startle or alarm has been linked to such chronic symptoms as low
resistance, high blood pressure, exhaustion, and ulcers.
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4.0 FINDINGS
The noise survey contained in the Technical Appendix reveals that the noise environment
at locations throughout the City are primarily attributable to transportation corridors. The
transportation noise sources in the City of Moorpark can be divided into three basic
categories: freeways, major and minor arterial roadways, and railroad sources. Each of
the transportation sources and their impacts on the noise environment of Moorpark are
summarized in the following paragraphs.
Freeways - The City of Moorpark has two freeways currently within its boundaries, State
Route 118 (SR 118) and 23 (SR 23). The SR 118 and SR 23 currently pass through the
City as conventional highways.
The SR 118 runs in an east/west direction within the City and terminates at its connection
with the SR 23 Freeway. Currently, two surface streets, New Los Angeles Avenue and Los
Angeles Avenue serve as SR 118. There are a number of residential areas located along
SR 118, and those homes directly adjacent to the highway are exposed to noise levels in
excess of 65 CNEL. In addition, there are two existing schools along Los Angeles Avenue,
however, the school buildings are set back from the roadway and are exposed to noise
levels less than 65 CNEL.
Moorpark Avenue and Walnut Canyon Road, currently, serve as SR 23. A large portion
of the land uses adjacent to this arterial corridor are open space; however, there are also
existing residential units, commercial, and office uses. Noise levels in excess of 65 CNEL
currently occur along the length of this corridor.
A SR 118 bypass arterial is proposed to be constructed in the future. The future SR 118
is proposed to run through the norther section of the City and will redirect traffic traveling
through the City. Land area, predominantly in the northwest portion of the City adjacent
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to proposed SR 118 is mostly undeveloped and is designated for future residential land
uses by the Land Use Element. The noise associated with the future SR 118 will be
significant, and the residential homes located adjacent to the proposed corridor may be
exposed to future traffic noise in excess of.70 CNEL.
There are also plans to build a SR 23 bypass arterial within the City's boundaries. The SR
23 will run in the north /south direction through the City. This would impact existing
residential units in the Varsity Park Estates neighborhood and areas for potential new
development in Specific Plan Area 2. New residential areas should include sufficient noise
mitigation measures to attenuate the projected noise from the SR 23.
Major and Minor Arterial Roadways - Traffic noise from major thoroughfares is a
significant source of noise within the community. The current and future major roadways
in the City include: Los Angeles Avenue, New Los Angeles Avenue, High Street, Tierra
Rejada Road, Walnut Canyon Road, Campus Park Drive, Moorpark Avenue, Spring Road,
Science Drive, Princeton Avenue and Collins Drive.
Noise levels along roadways are determined by a number of traffic characteristics. Most
important is the average daily traffic (ADT). Additional factors include the percentage of
trucks, vehicle speed, the time distribution of this traffic and gradient of the roadway.
In general, many of the land uses along the arterial roadways are commercial and
industrial. However, there are a number of single family homes that are located adjacent
to arterials.
Railroad - The railroad within the City is another significant source of noise. Rail lines
running in a northeast/southwest direction are located just south of High Street providing
for through and local service of freight and passenger trains. Additionally, there are parallel
spur tracks just west of Moorpark Avenue that are occasionally used for car storage
Currently, approximately 33 train operations per day run through the City. There are a
number of existing residential land uses located along this railroad. The limited number
of residences directly adjacent to the railroad are impacted by noise levels in excess of 70
CNEL.
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.5.0 GOAL STATEMENT
The goal of the Noise Element is to ensure that the health and well being of the citizens
of Moorpark are not compromised by exposure to excessive and possibly harmful levels
of noise. This will serve to provide a quality environment in which the citizens of Moorpark
may live and have assurance of continued health and well- being.
The sections that follow, provide a discussion of the methods used to measure and
analyze the noise environment of the City of Moorpark. The results of the analysis will then
be compared with accepted standards to determine where the City is affected by adverse
levels of noise. This will lead to a description of a policies and implementation programs
designed to minimize (or eliminate) these adverse levels and prevent future problems from
occurring.
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6.0 GOALS, POLICIES, AND IMPLEMENTATION
Goal N -1: Protect the health, safety, and general welfare of the public from adverse:noise
impacts.
Policy N -1.1: Identify sound attenuation measures that can be applicable to transportation
related noise impacts.
Policy N -1.2: Incorporate noise considerations into land use planning decisions to prevent
or minimize future noise and land -use incompatibilities. The analysis of traffic and other
noise sources shall consider future conditions at General Plan build out.
Policy N -1.3: Provide for reduction in noise impacts from non - transportation sources
through adoption of a Noise Ordinance, which is intended to protect people from noise
generated on adjacent properties.
Policy N -1.4: Require stationary noise sources to limit noise to levels that do not interfere
with adjacent uses.
Policy N -1.5: Require new projects to contribute to the mitigation of off -site traffic noise
impacts to the extent that these impacts are generated by the proposed project.
Policy N -1.6: Limit the impact of nuisance noise sources upon residential areas.
Implementation N- 1.1.1: The City shall require the use of appropriate sound attenuation
measures such as: walls, berms, setbacks and construction techniques, in the design of
new residential or other noise sensitive land uses adjacent to existing or planned
transportation corridors. The noise level criteria identified by Table 2.
Implementation N- 1.1.2: The City shall seek to minimize transportation noise through the
use of sound attenuation design features and coordination of transportation routing. As
part of the evaluation of commercial and industrial projects, truck movements and routes
in the City shall be evaluated to provide effective separation from residential or other noise
C:Ilminoise elementlNOISE .EIE9712f.wpd-- 29Jun98/3:33 PM PAGE 21
sensitive land uses. (For example: adding truck traffic to an arterial with adjacent
commercial and /or industrial development along the roadway creates less of a relative
noise impact than adding the truck traffic to a smaller roadway, such as a collector, where
the land use is predominantly residential.)
Implementation N- 1.1.3: The City shall encourage rail traffic operators to provide
appropriate mitigation for noise impacts resulting from increased rail traffic.
Implementation N- 1.1.4: Residential locations adjacent to rail lines are exposed to noise
in the range of 90 to 110 dBA(A) during train pass by. The installation of noise barriers
should be considered as a noise reduction measure for new residential development
adjacent to the railroad tracks.
Implementation N- 1.1.5: The City shall encourage the enforcement of State Motor Vehicle
noise standards for all privately owned, City owned, and City operated automobiles, trucks,
and motorcycles within Moorpark through coordination with the California Highway Patrol
and City of Moorpark Police Department.
Implementation N- 1.1.6: The construction of noise barriers should be considered as a
noise reduction measure to screen private outdoor residential yard areas from new arterial
road widening projects, which result in a significant noise level increase.
Implementation N- 1.2.1: Sound attenuation measures should be considered early in the
development of new residential or noise sensitive uses. The location and orientation of the
residential buildings should be configured to minimize or eliminate a noise problem for a
site adjacent to the freeway, highways, arterials, or rail lines. Other effective noise
reduction tools include the use of earthen berms, sound reducing walls, and generous
setbacks.
Implementation N- 1.2.2: New residential development that may occur within areas
identified on Exhibits 10 and 11 of the Noise Element Technical Appendices as having an
existing or projected CNEL of 60 dBA or greater shall be required to have a noise study
f
C.11minoise elementlNO1SE.ELE9712f wpd 29Jun9813.33 PM PAGE 22
performed to determine the level of sound attenuation required to meet acceptable interior
and exterior noise levels identified in Table 2. The noise study shall be conducted by a
person qualified and experienced in performing such studies which may be demonstrated
in a variety of ways including; membership in the Institute of Noise Control Engineers
(INCE) or as a Registered Professional Engineer in the State of California. This acoustical
analysis shall indicate the existing and projected CNELs on the site and the method(s) by
which the noise is to be controlled or reduced for residential projects to no more than 65
dBA within the exterior living space and no more than 45 dBA within the interior living
space of the project.
Implementation N- 1.2.3: The City shall employ standards that identify acceptable limits
of noise for various land uses throughout the City including residences, schools, hospitals,
convalescent homes, libraries, parks, and other noise sensitive areas. These criteria are
designed to fully integrate noise considerations into land use planning to prevent new
noise /land use conflicts. Table 1 shows criteria used to assess the compatibility of
proposed land uses with the noise environment. These criteria are the basis for the
development of specific Noise Standards. These criteria will also be evaluated at the
zoning stage to determine the appropriateness of a proposed land use and appropriate
conditions of approval that may be imposed on a project. The Noise Standards, presented
in Table 2, defines the City policies related to land uses and acceptable maximum noise
levels. Tables 1 and 2 are the primary tools that allow the City to ensure noise integrated
planning for compatibility between land uses and outdoor noise. The City should require
that all proposed new projects within it boundaries, demonstrate compliance with the
standards in Table 2 at the time of project application.
Implementation N- 1.2.4: The City shall continue to enforce the State of California Uniform
Building Code provision that specifies that the indoor noise levels for residential living
spaces not exceed 45 dBA CNEL, due to the combined effect of all noise sources. The
State requires implementation of this standard when the outdoor noise levels exceed 60
dBA CNEL. The Noise Referrat Zones (60 dBA CNEL) can be used to determine when this
standard needs to be addressed. The Uniform Building Code (specifically, the California
Administrative Code, Title 24, Part 6, Division T25, Chapter 1, sub chapter 1, Article 4,
CAlmWoise elemenilNOISE.ELE9712f wpd- 29Jun9813.3 PM PAGE 23
Section T25 -28) requires that "Interior community noise levels (CNEULDN) with windows
closed, attributable to exterior sources shall not exceed an annual CNEL or LDN of 45 d8A
in any habitable room." The code requires that this standard be applied to all new hotels,
motels, apartment houses and dwellings other than detached single - family dwellings.
Implementation N- 1.2.4: The City should require that the State of California Noise
Insulation Standards (State Building Code, Part 2, Title 24, Section 3501) be applied to all
new multi - family and condominium conversion projects. The City shall require that, prior
to issuance of building permits, the applicant-demonstrate that the design of the structure
will adequately isolate noise between adjacent units (party walls and common
floor /ceilings) per Chapter 35 of the Uniform Building Code. This Code requires that all
common wall assemblies be designed to a Class (STC) rating of at least 50, and that all
common floor /ceiling assemblies be designed to achieve at least an STC of 50 and an
Impact Isolation Class (IIC) rating of 50.
Implementation N- 1.3.1: The City shall adopt a new comprehensive noise ordinance to
ensure that City residents are not exposed to excessive noise levels from stationary noise
sources. The purpose of the ordinance is to protect people from non transportation related
noise sources such as people, machinery, commercial and industrial activities. The noise
ordinance does not apply to motor vehicle noise on public streets or to the railroad line.
The noise ordinance is designed to protect quiet residential areas (or other land uses
requiring quiet, such as hospitals, convalescent homes, schools, etc.) from stationary noise
sources. Land uses are determined by their actual use and not by the current zoning
designation. All new noise sources would be required to meet the noise ordinance at the
time of construction. Existing stationary noise sources would be given an amortization
period to be brought into compliance. The Noise Ordinance compliance and enforcement
shall be determined for each application by City staff.
Implementation N- 1.3.2: All new building permits will be issued based on compliance with
the noise criteria in the Noise Ordinance. A specific set of conditions shall be developed
for the issuance of building permits that include mechanical equipment. Maximum noise
C:Ilminoise elementlNOISE .ELE9712f.wpd-- 29Jun9813.33 PM PAGE 24
levels shall be identified and noise sensitive areas of residential properties defined with
compliance demonstrated prior to the issuance of building permits.
Implementation N- 1.3.3: All new development projects, including but not limited to
planned development and conditional use permits, shall be conditioned to comply with the
noise limits in the Noise Ordinance and Noise Element standards. A specific set of
conditions shall be developed for such projects that include any use that may cause noise
impacts on residential areas. This includes, but is not limited to, restaurants, bars,
entertainment, parking facilities, industrial and commercial uses. Maximum noise levels
shall be identified and noise sensitive areas of residential properties defined with
compliance demonstrated prior to the approval of the development project. Restaurants,
bars, and other entertainment type uses may be subject to a condition of approval that
requires that operators of a facility with a noise violation history be required to conduct on
site noise monitoring to verify compliance with the noise limits found in the Noise
Ordinance.
Implementation N- 1.3.4: Enforcement of the Noise Ordinance shall be the responsibility
of the Code Enforcement staff of the Community Development Department. The most
effective method to control community noise impacts from non - transportation sources is
through application of the community Noise Ordinance. It shall be the Policy of the City
to notify applicants for building permits that include mechanical equipment, of the existence
of the Noise Ordinance. Typical examples would include commercial and industrial areas
near residential development. The City may require as a condition of project approval,
that noise measurement data be provided to the City after construction, demonstrating
compliance with the Noise Ordinance.
Implementation N- 1.4.1: The City shall enforce the Municipal Code provisions relating
to the time that limitations that construction activity in or adjacent to residential areas may
occur in order to reduce the intrusion of noise in the early morning and late evening hours,
on weekends and holidays. At the time of development project approval, the City shall
ensure, through conditions of approval, that adequate noise control measures at all
construction sites are provided (through the provisions of mufflers and the physical
separation of machinery maintenance areas from adjacent residential uses).
C.Ilminoise elementlNOISE .ELE9712f.wpd-- 29Jun9813.33 PM PAGE 25
Implementation N- 1.4.2: The City shall establish and maintain coordination among the
City agencies involved in noise abatement and ensure the continued application of noise
enforcement efforts of the City through the Code Enforcement Program and the Police
Department.
Implementation N- 1.4.3: As a condition of development, the City shall limit delivery hours
for stores with loading areas or docks fronting, siding, bordering, or gaining access on
driveways adjacent to noise sensitive uses. Exemption from this restriction should be
based on compliance with the nighttime noise limits established by the Noise Ordinance.
Grocery stores are a major concern for late night delivery noise. The City shall consider
limiting delivery hours as a condition of approval for such projects when noise sensitive
uses are within 100 feet of loading areas, unless the noise level is within the limitations
identified by the Noise Ordinance. The City may consider potential effects of such limits
relative to increasing peak hour truck movements. In particular the City shall consider, in
determining limits on delivery hours, if such limits will result in increased peak hour truck
movements and corresponding potential increases in air quality impacts.
Implementation N- 1.4.4: The City shall establish and enforce the noise ordinance
standards or noise limits, and restrict the hours of maintenance or construction activity in
or adjacent to residential areas that result from in -home hobby or work related activities.
Implementation N- 1.5.1: Establish a Noise Mitigation Fee for new development that
would be utilized for noise mitigation measures as a direct cause of a projects incremental
development.
Implementation N- 1.6.1: The City shall adopt a new comprehensive Noise Ordinance to
ensure that City residents are not exposed to excessive noise levels from stationary noise
sources. The purpose of the Noise Ordinance is to protect people from non - transportation
related noise sources such as outdoor recreation people, machinery, commercial and
industrial activities. The Noise Ordinance does not apply to motor vehicle noise on public
streets or to the railroad lines. The Noise Ordinance is designed to protect residential
C.-Uminoise elementlNOlSE .ELE9712f.wpd- 291un9813.33 PM PAGE 26
C:Ilminoise elementlNO1SE. PAGE 30
Table 2-- Noise Standards
Land Use Categories
Categories
Uses
Energy Average CNEL
Interior Exterior =
Residential
Single Family, Two Family, Multiple
Family
45' S5°
65
Mobilehome
--
65'
Commercial
Industrial
Institutional
Hotel, Motel, Transient Lodging
45
656
Commercial Retail, Bank, Restaurant
55
--
Office Building, Research and
Development, Professional Offices, City
Office Building
50
_
Amphitheater, Concert Hall
Auditorium, Meeting Hall
45
Gymnasium (Multipurpose)
50
Sports Club
55
Manufacturing, Warehousing,
Wholesale, Utilities
65
Movie Theaters
45
__
Institutional
Hospital, Schools' classroom
45
65
Church, Library
45
__
Open Space
Parks
65
Interpretation
I. Indoor environment excluding: Bathrooms, toilets, closets, corridors.
2. Outdoor environment limited to: Private yard of single family
Multi- family private patio or balcony which is served by a means of exit from inside.
Mobilehome Park
Hospital patio
Park's picnic area
School's playground
Hotel and motel recreation area
3. Noise level requirement with closed windows. Mechanical ventilating system or other means of natural ventilation shall be
provided as of Chapter 12, Section 1205 of UBC.
4. Noise level requirement with open windows, if they are used to meet natural ventilation requirement.
5. Exterior noise level should be such that interior noise level will not exceed 45 CNEL.
6. Except those areas around the airport within the 65 CNEL contour.
C:11minoise elementlNO1SE .ELE9712f.wpd-- 29Jiin9813:33 PM PAGE 29
In
• areas (or other noise sensitive land uses such as hospitals, convalescent homes, etc.) from
stationary noise sources. Land uses are determined by their actual use and not by the
current zoning designation. All new noise sources would be required to comply with the
Noise Ordinance criteria at the time of construction. Existing noise sources would be given
a two (2) year period to achieve consistency with the ordinance. The Noise Ordinance
compliance and enforcement shall be designed for easy application by City staff.
C:Ilminoise elementlNO 1SE.ELE9712f.wpd- 29Jun98/3:33 PM PAGE 27
TABLE I - LAND USE/NOISE MATRIX
Land Use Categories
Community Noise Equivalent Level
Categories: U
CNEL
s
<55 <60 <65 <70 <75 <80
e
s:
Residential
Single Family, Duplex,
A
A
B
B
C
D
D
Multiple Family
Residential
Mobilehome
A
A
B
C
C
D
D
Commercial
Hotel, Motel, Transient Lodging
A
A
B
B
C
C
D
Regional, District
Commercial
Commercial Retail,-Bank
A
A
A
A
B
B
C
Regional Village
Restaurant, Movie Theater
District, Special
Commercial
Office Building, Research and
A
A
A
B
B
C
D
Industrial
Development, Professional
Institutional
Offices, City Offices Building
Commercial
Amphitheater, Concert Hall
B
B
C
C
D
D
D
Recreation
Auditorium, Meeting Hall
Institutional
Civic Center
Commercial
Childrens Amusement Park, -
A
A
A
B
B
D
D
Recreation
Miniature Golf Course, Go -cart Track,
Equestrian Center, Sports Club
Commercial
Automobile Service Station, Auto
A
A
A
A
B
B
B
General, Special
Dealership, Manufacturing,
Industrial, Institutional
Warehousing, Wholesale, Utilities
Institutional
Hospital, Church, Library
A
A
B
C
C
D
D
General
School's Classroom
Open Space
Parks
A
A
A
B
C
D
D
Open Space
Golf Course, Cemeteries,
A
A
A
A
B
C
C
Nature Centers Wildlife Reserves,
Wildlife Habitat
Agriculture
Agriculture
A
Al
A
A
A
A
A
Interpretation
Zone A - Clearly Compatible Specified land use is satisfactory, based upon the assumption that any buildings involved
are of normal conventional construction without any buildings involved are of normal
conventional construction without any special noise insulation requirements..
Zone B - Normally Compatible New construction or development should be undertaken only after detailed analysis of
the noise reduction requirements are made and needed noise insulation features in the
design are determined.. Conventional construction, with closed windows and fresh air
supply systems or air conditioning, will normally suffice.
Zone C - Normally Incompatible New construction or development should generally be discouraged. If new construction
or development does proceed, a detailed analysis of noise reduction requirements must
be made and needed noise insulation features included in the design.
Zone D - Clearly Incompatible New construction or development should generally not be undertaken
C. Il m l noise element I NOISE.ELE9712f. wpd- 29Jun9813:33 PM PAGE 28
CITY OF MOORPARK
TECHNICAL APPENDICES FOR THE
GENERAL ]PLAN NOISE ELEMENT
November 1994
Prepared by:
Mestre Greve Associates
280 Newport Center Drive
Suite 230
Newport Beach, CA 92660
(714) 760 -0891
0
APPENDIX A
TECHNICAL DATA
CITY OF MOORPARK
NOISE ELEMENT
Appendix A of the State of California General Plan Guidelines (The State Guidelines for
Preparation and Content of No Elements of the General Plan) indicates that the Noise
Element should present the noise environment in terms of noise contours. For those areas
identified as containing noise - sensitive facilities, the noise environment is determined by
monitoring. The purpose of this Technical Appendix is to provide background and supporting
information for the City of Moorpark Noise Element. This Appendix contains background
information on noise, information on the health effects of noise, noise assessment criteria,
methodology in determining the noise environment,, measurement and modeling results, and a
glossary (beginning on page C -1).
2.0 BACKGROUND ON NOISE
2.1 Noise Definitions
Sound is technically described in terms of the loudness (amplitude) and frequency (pitch) of
the sound. The standard unit of measurement of the loudness of sound is the Decibel (dB).
Since the human ear is not equally sensitive to sound at all frequencies, a special frequency -
dependent rating scale has been devised to relate noise to human sensitivity. The A- weighted
decibel scale (dBA) performs this compensation by discriminating against frequencies in a
manner approximating the sensitivity of the human ear.
Decibels are based on the logarithmic scale. The logarithmic scale compresses the wide range
in sound pressure levels to a more usable range of numbers in a manner similar to the way that
the Richter scale is used to treasure earthquakes. In terms of human response to noise, a sound
10 dBA higher than another is judged to be twice as loud; and 20 dBA higher four times as
loud; and so forth. Everyday sounds normally range from 30 dB (very quiet) to 100 dB (very
loud). Examples of various sound levels in different environments are shown in Exhibit 1.
Sound levels decrease as a function of distance from the source as a result of wave divergence,
atmospheric absorption, and ground attenuation. As the sound wave form travels away from
the source, the sound energy is spread over a greater area, dispersing the sound power of the
.wave. Atmospheric absorption also influences the levels that are received by the observer: The
greater the distance traveled, the greater the influence and the resultant fluctuations. The degree
of absorption is a function of the frequency of the sound as well as the humidity and
temperature of the air. Turbulence and gradients of wind, temperature and humidity also play a
CaT OF MOORPARKNOISE ELEWENT TECHNICALAPPiND/X PAGE - 2
significant role in determining the degree of attenuation.
Noise has been defined as unwanted sound and it is known to have several adverse effects on
people. From these known effects of noise, criteria have been established to help protect the
public health and safety and prevent disruption of certain human activities. This criteria is
based on such known effects of noise on people as hearing loss (not generally a factor with
community noise), communication interference, sleep interference, physiological responses
and annoyance. Each of these potential noise impacts on people are briefly discussed in the
following narratives:
HEARING LOSS is, in general, not a concern in community noise problems. The
potential for noise - induced hearing loss is more commonly associated with
occupational noise exposures in heavy industry or very noisy work environments
with long -term exposure. The Occupational Safety and Health Administration
(OSHA) identifies a noise exposure limit of 90 dBA for 8 hours per day to protect
from hearing loss. Noise levels in neighborhoods, even in very noisy airport
environments near major international airports, is not sufficiently loud to cause
hearing loss.
COMMUNICATION INTERFERENCE is one of the primary concerns in environmental
noise problems. Communication interference includes interference with speech and
activities such as watching television. Normal conversational speech is in the range of
60 to 65 dBA and any noise in this range or louder may interfere with speech. There
are specific methods of describing speech interference as a function of distance
between speaker and listener and voice level. Exhibit 2 shows the percent of sentence
intelligibility. with respect to various noise levels.
SLEEP INTERFERENCE is a major noise concern in noise assessment and, of course,
is most critical during nighttime hours. Sleep disturbance is one of the major causes
of annoyance due to community noise. Noise can make it difficult to fall asleep, and
can create momentary disturbances of natural sleep patterns by causing shifts from
deep to lighter stages and cause awakening. Noise may even cause awakening which
a person may or may not be able to recall.
Extensive research has been conducted on the effect of noise on sleep disturbance.
Recommended values for desired sound levels in residential bedroom space range
from 25 to 45 dBA with 35 to 40 dBA being the norm. The National Association of
Noise Control Officials have published data on the probability of sleep disturbance
with various single event noise levels. Based on experimental sleep data as related to
noise exposure, a 75 dBA interior noise level event will cause noise induced
awakening in 30 percent of the cases.
PHYSIOLOGICAL RESPONSES are those measurable effects of noise on people which
are realized as changes in pulse rate, blood pressure, etc. While such effects can be
induced and observed, the extent is not known to which these physiological
responses cause harm or are a sign of harm. Generally, physiological responses are a
CIIYOF MOORPARK NOISE ELEMENP TECHNICAL APPSNVDIX PACE
it
reaction to a loud short term noise such as a rifle shot or a very loud jet overflight.
ANNOYANCE is a very individual characteristic and can vary widely from person to
person. What one person considers tolerable can be quite unbearable to another of
equal hearing capability. The level of annoyance, of course, depends on the
characteristics of the noise (i.e.; loudness, frequency spectra, time, and duration),
and how much activity interference (e.g. speech interference and sleep interference)
results from the noise. However, the level of annoyance is also a function of the
attitude of the receiver. Personal sensitivity to noise varies widely. It has been
estimated that 2 to 10 percent of the population is highly susceptible to noise that they
themselves did not generate, while approximately 20 percent are unaffected by noise.
Attitudes are affected by the relationship between the person and the noise source (Is
it our dog barking or the neighbor's dog ?). Whether we believe that someone is
trying to abate the noise will also affect our level of annoyance.
2.2 Noise Metric and Assessment Criteria
Community noise is generally not a steady state and varies with time. Under conditions of non-
steady state noise, some type of statistical metric is necessary in order to quantify noise
exposure over a long period of time. Several rating scales have been developed for describing
the effects of noise on people. They are designed to account for the above known effects of
noise on people.
Based on these effects, the observation has been made that the potential for noise to impact
people is dependent on the total acoustical energy content of the noise. A number of noise
scales have been developed to account for this observation. These scales are: the Equivalent
Noise Level (LEQ), the Day Night Noise Level (LDN), and the Community Noise Equivalent
Level (CNEL). These scales are described in the following paragraphs.
LEQ is the "energy" average noise level during the time period of the sample. It is a
number that represents a decibel sound level. This constant sound level would
contain an equal amount of energy as a fluctuating sound level over a given period of
time. LEQ can be measured for any time period, but is typically measured for 15
minutes, l hour or 24- hours.
LDN is a 24 -hour, time - weighted annual average noise level. Time - weighted refers
to the fact that noise which occurs during certain sensitive time periods is penalized
for occurring at these times. In the LDN scale, those events that take place during the
night (10 pm to 7 am) are penalized by 10 dB. This penalty was selected to attempt to
account for increased human sensitivity to noise during the quieter period of a day,
where sleep is the most probable activity.
CNEL is similar to the LDN scale except that it includes an additional 5 dBA penalty
Cfl7 Of MOORPARK NOISE EL EWEM TECHNICAL APPENDIX PAGE A - 6
Table 2
Long Term (24 Hour) Noise Measurement Results
Site
CNEL
Long Term I - 282 Fremont
70.5 CNEL
Long Term 2 - 6485 Westwood
55.0 CNEL
Long Term 3 - 489 Cornett
61.5 CNEL
Long Term 4 - Walnut Canyon
58.4 CNEL
Long Term 5 - 13853 E. Los Angeles
62.6 CNEL
Long Term 6 - 13990 Keisha
57.5 CNEL
Long Term 7 - 4998 Mira Sol
71.6 CNEL
4.2 Noise Contours
The existing and future noise levels in the City were established in terms of the CNEL indices
by modeling all of the traffic noise sources for the existing and future traffic and speed
characteristics. The results for the roadways are presented in tabularized format in the
following tables. The existing contours are presented in Table 3 and the future contours are
presented in Table 4. The data in these tables represent the distance from the centerline of the
road to the contour value shown. Note that these tables do not include the mitigating effect of
noise barriers or topography. The traffic mix assumptions used in this analysis are shown in
Table 5. The existing roadway noise contours are shown graphically in Exhibit 10. These
contours are based on existing traffic volumes that were determined by traffic counts. The
future traffic noise contours are shown graphically in Exhibit 11. These contours are based on
projected traffic volumes supplied by the City of Moorpark.
CITY OF MOORPARK NOISE ELEMENT TECHNICAL APPEVDIX PACE A -18
a
Table 3 (continued)
Existing Roadway Noise Contours
Roadway
& Link
Distance to CNEL Contour from
Centerline of Roadway (Feet)
70 CNEL 65 CNEL 60 CNEL
SPRING
South of High Los Angeles
RW
53
114
North of New Los Angeles
RW
53
114
South of New Los Angeles
RW
63
135
North of Peach Hill
RW
63
135
Peach Hill to Barrett
RW
RW
91
Barrett to Tierra Rejada
RW
RW
91
PRINCETON
Campus Park to D Street
RW
52
111
South of SR -118
RW
RW
94
COLLINS
South of SR -118
RW
55
119
North of SR -118
RW
76
163
TRAIN (Southern Pacific Trans. Co.)
188
405
872
RW - Contour does not extend past the roadway right -of -way.
CaT OF MOORPARK NOISE ELE.W&VT TECHNICAL APPE?VDIX PACE A - 2 0
•
Table 4 (continued)
Future Roadway Noise Contours
Roadway
& Link
Distance to CNEL Contour from
Centerline of Roadway (Feet)
70 CNEL 65 CNEL 60 CNNEL
LOS ANGELES
East of S R -118
61
131
282
West of Gabbert
63
135
291
East of Gabbert
77
166
358
West of Park Lane
85
184
396
Parklane to Moorpark
82
177
381
East of Moorpark
99
214
462
West of Spring
108
233
503
(break in roadway)
Spring to SR -23
RW
RW
103
East of SR -23
RW
RW
91
NEW LOS ANGELES
Spring to Science
99
214
462
Science to SR -23
102
221
476
PEACH HILL
Tierra Rejada to Mesa Verde
RW
RW
RW
West of Spring
RW
RW
94
East of Spring
RW
RW
53
CHRISTIANBARRETT
Peach Hill to Spring
RW
RW
53
TIERRA REJADA
Los Angeles to Countrywood
57
122
264
Countrywood to Mountain Trail
51
109
235
East of Mountain Trail
35
74
160
West of Walnut Creek
32
69
148
Walnut Creek to Peach Hill
42
90
194
Peach Hill to Spring
51
109
235
Spring to Science
55
118
254
East of Science
66
143
308
West of SR -23
74
159
342
East of SR -23
53
114
245
COUNTRYWOOD
West of Tierra Rejada
RW
RW
RW
MOUNTAIN TRAIL
Northeast of Tierra Rejada
RW
RW
RW
Southwest of Tierra Rejada
RW
RW
75
MOUNTAIN MEADOW
North of Tierra Rejada
RW
RW
RW
South of Tierra Rejada
RW
Rey
RW
RW - Contour does not extend past the roadway right-of-way.
Table 4 (continued)
Future Roadway Noise Contours
RW - Contour does not extend past the roadway right -of -way
CrrYnF MnnAPAaar ivnrcr rr rMCAM Tom.- .,....... __
Distance to CNEL Contour from
Roadway
Centerline of Roadway (Feet)
& Link
70 CNEL
65 CNEL
60 CNEL
STATE ROUTE 23
South of Broadway
112
241
519
C Street to D Street
119
257
553
D Street to SR -118
108
233
502
South of SR -118
75
162
348
North of New Los Angeles
233
501
1080
New Los Angeles to Tierra Rejada
238
512
1104
South of Tierra Rejada
253
545
1174
PRINCETON
Campus Park to D Street
RW
62
135
South of SR -118
RW
RW
103
COLLINS
South of SR -118
RW
62
135
North of SR -118
52
113
243
RW - Contour does not extend past the roadway right -of -way
CrrYnF MnnAPAaar ivnrcr rr rMCAM Tom.- .,....... __
I
rNF.T Outdnnr T .nratinn
•
A 3rd Floor Apartment, Nest to Freeway
B 3rd Floor M -Rise, Downtown Loo Angeles
C 2nd Floor Tenement, New York City
D Urban Shopping Center
R Popular Beach on PaciSe Ocean
F Urban Residential Near Major Airport
G Urban Residential Neer Ocean
H Urban Residential 6mL to Airport
I Suburban Residential Near PJR'lraelm
J Urban Residential
Sound Level (dBA)
H Urban Reddantial Near Small Airport Aftu%ft 1aka ff
L Old Residential Near City Center
M Suburban Residential at City Outskirts
N Small Town Raaidantial Cul -d♦3ae �®
O Small Town Rasidential Main Street Naia sa+s'rm.
P Suburban Residential in MU Canyon cagym Ttaft
Q Farm Valley o
R Grand Canyon. North Rim
30 40 W ® 90
SOURCE: Community Noise, EPA, 1971
MMIN GREVI AMCIAM
ea+:
e0 ti� d
Data
L!O"�0 Lp "10"1
Exhibit 5
Noise Environments in Terms of Percent Noise UveLve
0
a
cods
a. Sbw alRlrmt" a at .d.rei.. appear m be a000ittsd eriea diffowa Ledk ldmdti=dm at a
masio:tem lwd for and o kwds, mom my be dimwit aaaapt In deem tae wbm apexes
Caen is a olitieai udv
bV Bawd A to m W"L
G Baaad aaly m bmmm LOSE.
d. As LagM of 73 A sear be Wmdf ed L diets am li ao k% ar d» aspo m Doer do fmobiog 16 beers
Ps day is lov a gk to eeeah Y a oeook aon- I oa to die 244tow aewW La. ae pow deai s Lw
at 60 dIL,
Now gxpkw daa at idmcded k%* for hwrW4 lone The atpoaea prod ririe! naaba a 1 fox at sat
idmddsd local is a paiod of d0 yens
Ra" in carp rebtr eats mie muff avwapa .
SOURCE :EPA
Exhibit 6
1/BS} M MPMF C14A T awA TT... —j AToj.. T -..1.
bukm To Peaaa
oudoar To Peeve:
mumm
Ac ivitl► How* Lm Apimt
Miritp Hm * Low Apka
bW6 CaaIWW- BWAFl-
hor- Caetidta• BQ68&
f*"= Aids facts
61 P eiae f6m
PA$kstsial wieh0vuWe
LAM
as
as
ss
ss
Space ud Fuss
Raidmm
taq(u)
70
70
Residaotiai eriea No
LAS
of
tf
outride Spam
.
t *U)
70
co mmwcw
G4(
(a
70
70(a
w
70
70(0)
lsidsTndaparjd=
Logaq
(a)
70
(a
Iedaca1,
LogMd)
(a
70
70(e)
(a)
70
70(e)
Hogs
L.de
as
as
ss
ss
Lag"
70
70
Lfdaeadwd
LAM
.s
as
is
ss
Love
70
70
Raaeatiodd Amu
L.oq(q
(a
70
moo
W
70
70(e)
Fa God sed
L.agaq
(a)
70
70(e)
c.eral vapopolaaea
Land
cods
a. Sbw alRlrmt" a at .d.rei.. appear m be a000ittsd eriea diffowa Ledk ldmdti=dm at a
masio:tem lwd for and o kwds, mom my be dimwit aaaapt In deem tae wbm apexes
Caen is a olitieai udv
bV Bawd A to m W"L
G Baaad aaly m bmmm LOSE.
d. As LagM of 73 A sear be Wmdf ed L diets am li ao k% ar d» aspo m Doer do fmobiog 16 beers
Ps day is lov a gk to eeeah Y a oeook aon- I oa to die 244tow aewW La. ae pow deai s Lw
at 60 dIL,
Now gxpkw daa at idmcded k%* for hwrW4 lone The atpoaea prod ririe! naaba a 1 fox at sat
idmddsd local is a paiod of d0 yens
Ra" in carp rebtr eats mie muff avwapa .
SOURCE :EPA
Exhibit 6
1/BS} M MPMF C14A T awA TT... —j AToj.. T -..1.
0
Interpretation
F- Noanally Acceptable
Specified Lead Use is Sacsfactoty.
Based Upon the Assumption that
Any Buildings Involved are of
Normal Conventional Consnuetiom
Without Any Special Noise Insulation
Requirement:.
New Coaauction of Development
Should be Undertaken only Afta
Detailed Analysis of the Noise a
Redttedou Requ mmeut is Made and
Needed Noise Insulation Feamroe
Included in the Design. Conventional
Corustrucdon, but wit$ Closed
Windows and Fresh Air Supply
Systems or Air Conditioning Will Normally SuMce.
= Normally Unacceptable
New Construction ac Development
Should Generally be Discours=ed.
If New Conscmdon at Development
Does Proceed. a Detailed Analysis of
the Noise Reduction Requirements
Must be Made and Needed Noise
Insulation Foam= Included is the
DesiVL
_ Clearly Unacceptable
New Camouction at Development
Should Generally not be Undamitem
Exhibit 8
Aroma GNVT Noise/Land Use Comnatibility Matrix
Community Noise Exposure
Ldu or CINEL, 48
55 60 65 70 73 :o
Residential - Low Density
Single FmWy. Duplex. Mobile Homes
_■�.
iiiiiis��■
COLE Comm Riding Stables
MEN
Interpretation
F- Noanally Acceptable
Specified Lead Use is Sacsfactoty.
Based Upon the Assumption that
Any Buildings Involved are of
Normal Conventional Consnuetiom
Without Any Special Noise Insulation
Requirement:.
New Coaauction of Development
Should be Undertaken only Afta
Detailed Analysis of the Noise a
Redttedou Requ mmeut is Made and
Needed Noise Insulation Feamroe
Included in the Design. Conventional
Corustrucdon, but wit$ Closed
Windows and Fresh Air Supply
Systems or Air Conditioning Will Normally SuMce.
= Normally Unacceptable
New Construction ac Development
Should Generally be Discours=ed.
If New Conscmdon at Development
Does Proceed. a Detailed Analysis of
the Noise Reduction Requirements
Must be Made and Needed Noise
Insulation Foam= Included is the
DesiVL
_ Clearly Unacceptable
New Camouction at Development
Should Generally not be Undamitem
Exhibit 8
Aroma GNVT Noise/Land Use Comnatibility Matrix
1
1
1
1
1
1
1 ,
I
1 �
1
1 \�a
MOORPARK ' 1
MOORPARK
I
t
I
t y
1 9
1
I
I
1/ I
1�
OORP � K I
� , 1
+ — -- - - --
—3
s 1 1
2
YY ANGELES I LT -7 20`
5
7 1 1
I I 1 1
t' 1 1
pop—/
t1111. aJ'n
O 1
a O RPAR
17 a I
I
1 I��t //J1�jjr _ 1
1 1N,v0 I - -_ 1 —�1
6 _ J
�FiOM NCR[S __ __ __ 1 -LT -6
1 t
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1 ' ---- +--- h- - - - - -" ----------�---- / i 1
r
•\ I � , ' , ``•?� - - -- it , 1
KCSTRE GREVE ASSOCIATES
The Moorpark Noise Element measurement survey utilized the Briiel & KjTr automated digital
noise data acquisition systems for short -term (15 minute) LEQ readings and long term (24
hour) readings. This instrument automatically calculates both the Equivalent Noise Level
(LEQ) and Percent Noise Level (L %) for any specific time period. The noise monitors were
equipped with a Briiel & KjTr 1/2 inch electret microphone and was calibrated with a Briiel &
Kjmr calibrator with calibrations traceable to the National Bureau of Standards. Calibration for
the calibrators are certified through the duration of the measurements by Briiel & Kjxr. This
measurement system satisfies the ANSI (American National Standards Institute) Standards for
Type 1 precision noise measurement instrumentation.
3.2 Computer Modeling
The traffic noise levels projected in the Noise Element were computed using the Highway
Noise Model published by the Federal Highway Administration ( "FHWA Highway Traffic
Noise Prediction Model," FHWA -RD -77 -108, December 1978). The FHWA Model uses
traffic volume, vehicle mix, vehicle speed, and roadway geometry to compute LEQ noise
levels. A computer code has been written which computes equivalent noise levels for each of
the time periods used in CNEL. Weighting and summing the noise levels results in the CNEL
for the traffic projections used. The traffic data used to project�these noise levels are derived
from the City of Moorpark's General Plan Circulation Element. The traffic mix data (i.e., the
vehicle makeup of the traffic on the roadways in terms of percentages of cars, medium trucks,
and heavy trucks) for the arterials are based upon surveys (conducted by the County of
Orange) of roadways in Southern California. The traffic mix information is considered typical
for arterials in the Southern California area and is applicable to the City of Moorpark.
4.0 RESULTS
4.1 Measurement Results
The noise measurement program was conducted over a period of three days. The survey was
taken on March 15th, March 29th, and on April 4th, 1994, at 27 locations throughout the City.
The results of the ambient short -term noise measurements at each site are shown in Table 1.
The results of the long term measurements are shown in Table 2; this table also shows the date
and time of the measurements. The quantities measured were the Equivalent Noise Level
(Leq), the maximum noise level (Lmax) and the Percent Noise Levels (L%).
CITY OF MOORPARKNOISE ELEMFVr
TECHNICAL APP&VDIX PAGE A • 16
a
RESOLUTION NO. PC -97-
A RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF
MOORPARK, CALIFORNIA RECOMMENDING TO THE CITY COUNCIL
THE ADOPTION OF THE UPDATE TO THE NOISE ELEMENT OF THE
CITY OF MOORPARK GENERAL PLAN
WHEREAS, at a duly notice public hearing on January 12, 1998,
regarding consideration of said update to the Noise Element of the
City of Moorpark General Plan; and,
WHEREAS, at its' meeting of January 12, 1998, the Planning
Commission opened the public hearing, took testimony from all those
wishing to testify, and closed the pubic hearing; and,
WHEREAS, the Planning Commission, after review and
consideration of the information contained in the staff report
dated January 12, 1998, made a recommendation to the City Council;
and,
NOW, THEREFORE, THE PLANNING COMMISSION OF THE CITY OF
MOORPARK, CALIFORNIA, DOES RESOLVE AS FOLLOWS:
SECTION 1. That the Planning Commission determined that
the update to the Noise Element of the City of Moorpark General
Plan will not have the potential for causing a significant effect
on the environment, and an Exemption from the provisions of CEQA
(California Environmental Quality Act) may be issued, pursuant to
Section 15061 of the California Environmental Quality Act.
SECTION 2. That the Planning Commision recommends to the
City Council approval of the update to the Noise Element of the
Moorpark General Plan (Attached as Exhibit A), with the following
findings:
a. The update sets goals and establishes policies and
objectives that will decrease levels of noise
sources on new development.
b. The-update identifies the existing impacts of noise
on the City of Moorpark.
C. The update identifies future impact of noise on the
City of Moorpark.
0: \lm \97WAYNE \noise.res.:+pd /4:01 2M
a
The action of the foregoing direction was approved by the fol; owing
roll call vote:
Ayes:
Noes:
Absent:
PASSED APPROVED AND ADOPTED ON , DAY OF 1998.
ATTEST:
Celia LaFleur, Secretary
to the Planning Commission
Ernesto Acosta, Chair
0: \lm \97WAYNE \noise.res.vpd /4:01 2M
RESOLUTION NO. PC -97-
A RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF
MOORPARK, CALIFORNIA RECOMMENDING TO THE CITY COUNCIL
THE ADOPTION OF AN ORDINANCE AMENDING THE CITY OF
MOORPARK MUNICIPAL CODE BY ADDING CHAPTER 17.53
REFERRING TO NOISE
WHEREAS, at a duly notice public hearing on January 12, 1998,
regarding consideration of said amendment of the city of Moorpark
Municipal Code by adding Section 17.53 a Noise Ordinance; and
WHEREAS, at its' meeting of January 12, 1998, the Planning
Commission opened the public hearing, took testimony from all those
wishing to testify, and closed the pubic hearing; and,
WHEREAS, the Planning Commission, after review and
consideration of the information contained in the staff report
dated January 12, 1998 and made a recommendation to the City
Council; and,
NOW, THEREFORE, THE PLANNING COMMISSION OF THE CITY OF
MOORPARK, CALIFORNIA, DOES RESOLVE AS FOLLOWS:
SECTION 1. That the Planning Commission determined that
the City of Moorpark Municipal Code will not have the potential for
causing a significant effect on the environment, and an Exemption
from the provisions of CEQA (California Environmental Quality Act)
has been determined may be issued, pursuant to Section 15061 of the
California Environmental Quality Act Guidelines.
SECTION 2. That the Planning Commission recommends to the
City Council approval of the amendment to the City of Moorpark
Municipal Code by adding Section 17.53. (Attached as Exhibit A),
with the following findings:
a. The Amendment to the Municipal Code would potentially
decrease the level of noise sources on new development.
b. The Amendment to the Municipal Code would allow for the
enforcement of the of Community Noise Equivalency Level
(CNEL) by identifying parameters for noise levels in all
zoning districts in the community.
0: \Lm\97WAYNE \noise.ord.wpd /4:15 PM
•
c. The Amendment to the Municipal Code and establishing
acceptable decibel levels of noise on interior and
exterior noise sources.
The action of the foregoing direction was approved by the following
roll call vote:
Ayes:
Noes:
Absent:
PASSED APPROVED AND ADOPTED ON , DAY OF
ATTEST:
Celia LaFleur, Secretary
to the Planning Commission
Ernesto Acosta, Chair
1998.
D: \lm \97WAYNE \noise.ord.wpd /4:15 Pm