HomeMy WebLinkAboutMCUP 13-02; LA COSTA RESERVOIR WCF; UPDATED and REVISED Acoustical Impact Study and Evaluation; 2011-05-03L FR Jn ~ AR(ADJS compdl/
May 3, 2011
The Planning Consortium, Inc.
Attn: Mr. John Bitterly, Project Manager
627 North Main Street
Orange, CA 92868
002-16043-00
Subject: UPDATED and REVISED Acoustical Impact Study and Evaluation
Verizon Wireless -La Costa Facility
3023 Alga Road, City of Carlsbad, California
Dear Mr. John Bitterly:
At the request of The Planning Consortium, LFR Inc. (LFR) has prepared the attached letter
presenting our acoustical evaluation of the proposed Verizon Wireless -La Costa Facility project
located in the City of Carlsbad, California. Its purpose is to assess worst-case mechanical noise
impacts to the adjacent residential property lines from the proposed outdoor mounted HV AC and
generator equipment, and determine if noise levels would exceed the City of Carlsbad's noise
threshold limit of 60 dBA at adjacent residential zones.
Introduction
LFR Inc. (LFR) is submitting this acoustical analysis report to satisfy the acoustical requirements
of the City of Carlsbad for a Building Permit for the proposed Verizon Wireless -La Costa
Facility project ("the proposed project"). Its purpose is to evaluate worst-case mechanical noise
impacts from the proposed project to the adjacent residential property lines and determine if noise
levels would exceed the City of Carlsbad's Noise Element (Section 4 C.5) threshold limit of
60 dBA for residential zones. For more information please refer to Attachment A: Relevant
Excerpts from the City of Carlsbad Noise Element.
Project Description and Location
The proposed project site is located at 3023 Alga Road in the City of Carlsbad, California. The
Assessor's parcel number (APN) for the property is 223-792-20. Neighboring land in proximity to
the project site is zoned for Residential use.
The location of the proposed project is shown on the Vicinity Map (Figure 1). A Satellite Aerial
Map, APN Map, and Topographic Map of this area are also provided as Figures 2 through 4.
The project site consists of the operation of a 57 foot high cellular communication antenna
supported by its associated mechanical equipment housed within a single story shelter. Two Rheem
condensing units are shown to be located on the rooftop of the mechanical equipment shelter and
are surrounded on all four sides by a 2 foot 9 inch high parapet wall. A Kohler generator is located
I 619.291.1000 m
[ 619.291.5400 f
9095 Rio San Diego Drive, Suite 240 i www.lfr.com
San Diego, California 92108 [
Offices Nationwide
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L F R an IQ AR(ADIS company
on the north side of the equipment shelter. The generator is contained within a sound enclosure
and is adjacent to an 8 foot high CMU block wall to the southwest. A water tank is located on the
northern portion of the property. Single story and 2-story residences are located directly south,
east, west, and north of the proposed project site. For more information please refer to Attachment
B: Verizon Wireless -La Costa Facility Project Plans.
Noise Emission Data
Noise emission data is often supplied per the industry standard format of "sound power," which is
the total acoustic power radiated from a given sound source as related to a reference power level
of 10 Pico watts. Sound power (PWL) differs from sound pressure, which measures the
fluctuations in air pressure caused by the presence of sound waves, and is generally the format that
describes noise levels as heard by the receiver. Sound pressure is the actual noise experienced by a
human or registered by a sound level instrument. When sound pressure is used to describe a noise
source, it must specify the distance from the noise source to provide complete information. Sound
power is a specialized analytical method to provide information without the distance requirement,
but it may be used to calculate the sound pressure at any desired distance.
Mechanical Equipment Type and Duty Cycle
According to information provided by Mr. John Bitterly, the Project Manager for The Planning
Consortium, the anticipated mechanical equipment use on the property will be used primarily to
support a cell tower communication hub site. The primary noise producing mechanical equipment
located on the project site will be two (2) outdoor mounted Rheem condensing units located on the
rooftop of the single story mechanical equipment shelter and a Kohler generator located on the
north side of the mechanical equipment shelter. The generator will be contained within sound
enclosure manufactured by Kohler. Our calculations were conducted using a worst-case scenario
with the two Rheem condensing units and the Kohler generator operating continuously for 24
hours a day. The noise emission data for the Rheem condensing units and the Kohler generator
specified on the project plans was supplied by the manufacturers. Table 1 summarizes the noise
emission data for the Rheem condensing units and the Kohler generator. For more information
regarding the mechanical equipment noise emission data please refer to Attachment C: Proposed
Mechanical Equipment Emission Data.
Table 1: Rheem Condensing Unit Noise Emission Data
Manufacture Model Description Occurrences Noise Emission Level Per Day
Rheem 060CAZ/DAZ/ Condensing Units 100% 76.0dBA PWL JAZ/YAZ
Kohler 30REOZJC-Generator within a 100% 65 dBA at 7 meters VER Sound Enclosure
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L F R an "' AR(ADIS c~pany
Field Measurement Methodology
Several 15 minute sound level measurements (Leq, A-Weighted) were conducted to record the
current ambient noise environment for the project site and the surrounding area. During the on-site
ambient noise measurements, start and end times were recorded, and all noise sources within the
vicinity of the project site were documented.
Other field data gathered during the site visit included measuring or estimating distances, angles-
of-view, slopes, and topographic elevations. This information is subsequently verified using
available maps and records.
Measurement Equipment
Some or all of the following equipment was used at the project site to measure existing
noise levels:
• Larson Davis Model 824 Sound Level Meter, Serial # 824A3582
• Larson Davis Model CA200 Calibrator, Serial # 6072
• Hand-bearing magnetic compass, microphone with windscreen, tripods
• Distance measurement wheel, digital camera
The sound level meter was field-calibrated prior to and following the noise measurement to ensure
accuracy. All sound level measurements conducted and presented in this report, in accordance with
the regulations, were made with a sound level meter that conforms to the American National
Standards Institute specifications for sound level meters ANSI SI.4-1983 (R2001). All instruments
are maintained with National Bureau of Standards traceable calibrations, per the
manufacturers' standards.
Noise Modeling Software
Modeling of the mechanical noise equipment and surrounding environment was accomplished
using Cadna A (Computer Aided Noise Abatement) Ver. 4.0, which is a model-based computer
program developed by DataKustik for predicting noise impacts in a wide variety of conditions.
Cadna A assists in the calculation, presentation, assessment, and mitigation of noise exposure. It
allows for the input of project information such as noise source data, barriers, structures, and
topography to create a detailed CAD model, and uses the most up-to-date calculation standards to
predict outdoor noise impacts to property lines and adjacent surrounding areas.
Ambient Noise Level Measurement
LFR performed an on-site inspection and an ambient noise measurement at a single location on the
afternoon of Friday, January 9, 2009. The weather conditions were as follows: clear skies, low
humidity, and temperature in the high 60's, with winds from the south at 1 to 2 mph.
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L F R an ft.I AR(ADIS company
LFR performed an additional on-site inspection and conducted ambient noise measurements at four
locations on the afternoon of Thursday, December 16, 2010. The weather conditions were as
follows: clear skies, low humidity, and temperature in the low 60's, with winds from the south at
1 to 2 mph. Several 15 minute ambient noise level measurements were taken along the property
lines of the project site with a microphone placed at approximately 5 feet above the existing site
grade. The measured ambient noise levels are summarized in Table 2. For more information
please refer to Figure 5: Project Site Plan Showing Ambient Noise Measurement Location.
Table 2. On-Site Ambient Noise Measurements
Receiver Date Location Measured Noise Level (dBA
Leq)
1 1-9-2010 Southeastern Property 44.5 Line
7 12-16-2010 Northern Property Line 45.1
8 12-16-2010 Northwestern Property 46.9 Line
9 12-16-2010 Southwestern Property 61.7 Line
10 12-16-2010 Southern Property Line 55.1
Mechanical Equipment Noise Impacts
Based on the project information available, without mitigation, the operation of this facility will be
in compliance with the City of Carlsbad Noise Element limits (Section 4 C.5). Results of the
acoustical model calculations show that worst-case property line noise impacts generated from the
proposed Rheem condensing units and the Kohler generator will be as high as 56.3 dBA LEQ at the
southwestern property line (Receiver 9), considered to be the worst-case location.
The calculated noise levels at each property line at the selected worst-case locations are
summarized in Table 3. For details of the acoustical calculations, please refer to Attachment D:
Cadna Analysis Data and Results. Please also refer to Figure 6: Site Plan Showing Noise Source
Locations and Noise Impacts to Project Property Line Receiver Locations.
Table 3: Calculated Verizon Wireless -La Costa Facility Noise Impacts
City of Carlsbad Noise Calculated Noise Level Receiver Location Element Threshold Limit (dBA Leq) (dBA)
1 Southeastern 60.0 31.3 Property Line
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2 Southeastern 60.0 31.5 Roadway
3 Southern 60.0 33.6 Roadway
4 Southwestern 60.0 42.9 Roadway
5 Western Roadway 60.0 39.6
6 Northern 60.0 42.7 Driveway
7 Northern Property 60.0 42.5 Line
8 Northwestern 60.0 47.3 Property Line
9 Southwestern 60.0 56.3 Property Line
10 Southern Property 60.0 36.8 Line
Mitigation
As designed, findings show that no mitigation is required as a result of this analysis for the
proposed Verizon Wireless -La Costa facility. The project is shown to meet the required permit
application noise limits as set forth within the City of Carlsbad Noise Element threshold limits
(Section 4 C.5).
Certification
This document was prepared under the supervision of and reviewed by Kevin Fowler and Michael
Burrill, representatives of LFR Inc. The findings and recommendations of this report are based on
the information available, and are a true and factual analysis of the potential acoustical issues
associated with the Verizon Wireless -La Costa project, City of Carlsbad, California.
All findings for noise control are based on the best information available at the time our consulting
services are provided. However, as there are many factors involved in sound transmission, and
LFR Inc. has no control over the construction, workmanship or materials, LFR Inc. is specifically
not liable for final results of any recommendations or implementation of the recommendations.
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L F R an '1 AR(AOIS c~pany
LFR appreciates this opportunity to provide consulting services for the Verizon Wireless -La
Costa project. If you have any questions concerning this project, or would like to discuss other
environmental concerns, please contact me at (760) 602-7821.
Sincerely,
Kevin Fowler
Project Acoustical Scientist
Figures
1. Vicinity Map
2. Aerial Satellite Map
3. APN Map
4. Topography Map
5. Project Site Plan Showing Ambient Noise Measurement Locations
6. Site Plan Showing Noise Source Locations and Noise Impacts to Project Property Line Receiver
Locations
Attachments
A. Relevant Excerpts from the City of Carlsbad Noise Element
B. Verizon Wireless -La Costa Facility Project Plans
C. Proposed Mechanical Equipment Emission Data
D. Cadna Analysis Data and Results
6
FIGURES
Vicinity Map
Verizon Wireless
0 400 800 1,600 feet 3023 Alga Road, Carlsbad, Ca. La Costa Project: 002-1604~0
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MAP SOURCE: Google Earth Pro™ 2007, Carlsbad, CA
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0 250 500 1,000 feet 3023 Alga Road, Carlsbad, Ca -La Costa Project: 002-16043-00
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0 700 1,400 2,800 feet 3023 Alga Road, Carlsbad, Ca -La Costa Project: 002-16043--00
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Site Plan Showing Noise Source Locations
and Noise Impacts to Project Property Line
Receiver Locations
Dal.)!_ International I Verizon Wireles~ -La Costa
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ATTACHMENT A
Relevant Excerpts from the City of Carlsbad Noise Element
I. INTRODUCTION
A. BACKGROUND AND INTENT
The goal of the Noise Element is to achieve and
maintain an environment which is free from
objectionable, excessive or harmful noise.
The Noise Element
Identifies and defines existing and future
environmental noise levels from sources of
noise within or adjacent to the City of
Carlsbad by means of Noise Contour maps.
Establishes goals, objectives and policies to
mitigate these noise impacts.
Provides policies and action programs to
implement the Goals and Objectives.
"The Goal of the Noise Element is to
achieve and maintain an environment
which is free from objectionable,
excessive or harmful noise."
B. STATE LAW
Section 65302(1) of California's Planning and
Zoning Laws requires a Noise Element which
identifies and appraises noise problems in the
community. The Noise Element shall recognize
the guidelines established by the Office of Noise
Control in the State Department of Health
Services and shall analyze and quantify, to the
extent practicable, as determined by the
legislative body, current and projected noise
levels for all of the following sources:
1. Highways and freeways;
2. Primary arterial and major local streets;
3. Passenger and freight online railroad
operations and ground rapid transit
systems;
4. Commercial, general aviation, heliport,
helistop, and military airport operations,
aircraft overflights, jet engine test stands,
and all other ground facilities and
maintenance functions related to airport
operation;
5. Local industrial plants, including, but not
limited to, railroad classification yards;
and
6. Other ground stationary noise sources
identified by local agencies as
contributing to the community noise
environment.
Noise contours shall be shown for all of these
sources and stated in terms of community noise
equivalent level (CNEL) or day-night average
level (Ldn). The noise contours shall be prepared
on the basis of noise monitoring or following
generally accepted noise modeling techniques for
the various sources identified in paragraphs (1) to
{6), inclusive. The noise contours shall be used
as a guide for establishing a pattern of land uses
in the Land Use Element that minimizes the
exposure of community residents to excessive
noise.
The Noise Element shall include implementation
measures and possible solutions that address
existing and foreseeable noise problems, if any.
The adopted Noise Element shall serve as a
guideline for compliance with the state's Noise
Insulation Standards.
C. RELATIONSHIP TO OTHER
ELEMENTS
The Noise Element is correlated with the Land
Use, Circulation, and Housing Elements of the
General Plan. The Land Use Element is related
to the Noise Element in that noise can have a
significant impact on land use. The Circulation
Element is related to the Noise Element in that
the majority of the noise created in Carlsbad is
created by trains, planes or automobiles. The
Housing Element relates to the Noise Element by
promoting desirable residential environments
which buffer existing and future residents from
undesirable noise impacts. Consistent with state
law, it is the policy of the City that the Noise
Element be consistent with all General Plan
Elements.
II. SOURCES OF NOISE
A. CIRCULATION
1. ROADS
Roadway traffic noise is the most extensive noise
problem faced by Carlsbad. Barring any dramatic
changes in truck or automobile usage patterns, it
is likely that the amount of traffic in Carlsbad will
grow with the City's population. New
development is occurring adjacent to major
roadways throughout the City. Unless
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precautionary measures are taken, serious noise
problems could result.
"Roadway traffic noise is the most
extensive noise problem faced by
Carlsbad."
Vehicular noise has three main component
sources: engine/transmission noise, exhaust
noise and tire noise. The intensity of noise
emissions from any given vehicle will vary with its
size and other factors, such as speed,
acceleration, braking, roadway grade and
conditions of the roadway surface. Thus a busy
downtown arterial with stop and go traffic is often
noisier than an open highway with comparable
traffic volumes.
Noise contours have been prepared for all
Circulation Element roadways in Carlsbad as
shown on the current and future noise exposure
maps (See Map 1: Existing Noise Exposure
Contour Map and Map 2: Future Noise Exposure
Contour Map}.
Interstate 5 has the greatest existing and
projected roadway noise emissions. In addition,
1-5 impacts the greatest number of existing
dwellings. There are a considerable number of
existing single family and multi-family dwellings
which are impacted by freeway noise levels in
excess of 65 dBA CNEL. For these existing
dwellings, noise attenuation is difficult.
Construction of solid barriers along the freeway is
possible, but cost may be prohibitive. The City
can, however, educate property owners as to the
methods of insulating existing residential units
from freeway noise through the use of barriers
and insulation materials. The City's
"Development Review: Noise Guidelines Manual"
is a useful reference.
While other routes within the City have a lesser
impact than does 1-5, many roads will still have
significant noise impact potential and new
projects should therefore be subject to noise
impact evaluation.
It is important that new development fronting on
major roadways be compatible with the
recommendations of this element. The action
plan section of this element contains the
measures intended to avert future problems
caused by traffic noise.
2. AIRPORT
McClellan-Palomar Airport is presently operating
as a general aviation facility and is located _west
of El Camino Real, just north of Palomar Airport
Road in the City of Carlsbad. The airport's
current annual operation of approximately
235,000 aircraft Is expected to increase at the
airport's ultimate buildout condition to
approximately 334,000. In general, land in the
immediate vicinity of the airport or under the take
off or landing approach is subject to noise levels
which are unsuitable for residential development,
schools, hospitals and other similar noise
sensitive uses. Projected noise contours around
the airport are provided in the Comprehensive
Land Use Plan (CLUP} for McClellan-Palomar
Airport and have been included in this Element
(See Map 3: Airport Noise Contour Map}. In
1989 the FAA began a detailed noise study for
McClellan-Palomar Airport. The findings of this
study have been published in the proposed 1992
Part 150 Study for the airport, which is currently
under review as part of its adoption process.
However, all new development in the vicinity of
the airport should continue to be reviewed to
ensure compliance with the noise standards
contained in this element and the approved
Comprehensive Land Use Plan (CLUP) for
McClellan-Palomar Airport.
The Comprehensive Land Use Plan (CLUP) for
McClellan-Palomar Airport is to be a long-range
master plan for the airport. As stated in State
Public Utility Code Section 21675, "The
commission plan shall include and shall be based
on a long-range master plan or an airport layout
plan, as determined by the Division . of
Aeronautics of the Department of Transportation,
that reflects the anticipated growth of the airport
during at least the next 20 years." For purposes
of General Plan Land Use planning, and lacking
further information, the City of Carlsbad must
assume that the Comprehensive Land Use Plan
(CLUP) for McClellan-Palomar Airport is a
longrange master plan updated every fi~e years,
that reflects anticipated growth for the airport for
at least the next twenty (20) years.
3. RAIL
The Atchison, Topeka and Santa Fe (AT&SF)
Railroad runs parallel to the coastline through its
6 1/2 mile length in Carlsbad. The railroad right-
Page2
of-way is 100 feet wide throughout most of the
area south of Tamarack Avenue and expands to
200 feet in width as it travels north of Tamarack
through the downtown beach area and central
business district.
Currently AMTRACK operates several daily
passenger trains between San Diego and Los
Angeles. Additionally, a number of freight trains
pass through Carlsbad daily, some after 5 P.M.
These evening and nighttime freight trains are of
particular concern because they run during the
hours when people are more sensitive to noise.
By the end of 1993, it is projected that a
commuter rail will run at least four daily trips from
Oceanside to San Diego with two stops in
Carlsbad. Ultimately, up to 20 commuter trains
may travel through the City at high speed.
There are several sources of railroad noise. The
majority of the noise emanates from the
locomotive (and its component systems, such as
exhaust devices and cooling fans) and from the
interaction between the rail and train wheels. The
rhythmic clacking noise emitted by trains result
from friction of the wheel at rail joints. Roughness
on either the rail or wheel can also contribute to
increased noise emissions.
Safety devices such as warning whistles and wig-
wags with bells used at grade crossings can
contribute significantly to railroad noise. The
State of California Public Utilities Commission
requires these warning signals as trains approach
grade crossings to warn motorists and
pedestrians.
"A combined program of noise
mitigating design and building sound
insulation will help control future
noise problems near the railroad."
For existing residential units, noise reduction is a
problem. It is often difficult and expensive to
install sound insulation materials on existing
structures. Also, the State Uniform Building Code
standards for sound insulation apply only to new
structures. Construction of noise barriers along
the railroad right-of-way could attenuate noise
levels significantly. However, the railroad right-of-
way is owned by the AT&SF Railroad, whose
consent would be necessary before any barrier
could be constructed. Also cost and aesthetic
impact may be prohibitive factors in the
construction of noise barriers.
The Land Use Element of the General Plan
designates a substantial amount of land bordering
along the railroad right-of-way for residential use.
New residential development and nonresidential
development will occur adjacent to the railroad.
The City does have the ability to regulate site
design and requires sound insulation for new
development in the vicinity of the railroad. A
combined program of noise mitigating design and
building sound insulation will help control future
noise problems near the railroad.
New projects should maximize the physical
separation of structures from the railroad tracks.
Additionally, project design should stress the
orientation of units away from the railroad, limiting
or acoustically designing window openings onto
the right-of-way, and construction of noise
barriers such as solid walls, earthen berms, or
berm/wall combinations.
B. LAND USE
To a great extent, the future ambient noise levels
of the City will be determined by the type,
intensity and location of future land uses. Future
noise levels will also be affected by the
construction of new roadways to serve new
development and by land uses that generate
noise. Noise levels may affect the desirability or
livability of a community. Noise may also
negatively impact the economic viability of a
community by reducing the desirability of an area
as a place to live, work, play, or shop. For these
reasons, noise continues ta be an important
consideration of the City in future land use
planning.
"To a great extent, the future ambient
noise levels of the City will be
determined by the type, intensity and
location of future land uses."
Some land uses are more compatible with higher
noise levels than are others. For example,
schools, hospitals, churches and residences are
generally considered more sensitive to noise
intrusion than are commercial or industrial
activities. To respond to the sensitivity of certain
land uses to higher noise levels, this element
includes policies to reduce noise impacts on
noise-sensitive uses such as residences.
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It may be appropriate to develop noise-sensitive
uses such as residences, hospitals, or churches
in noisy areas. In these instances, it is important
that the proper measures are used to reduce
noise Impacts. In all cases sensitive site plan
design is to be used as the first method to reduce
noise impacts on a project. Sensitive site plan
design measures will include, for example,
increasing the distance between the noise source
and the receiver; placing non-noise sensitive
uses such as parking areas, maintenance
facilities, and utility areas between the source and
the receiver; using non-noise sensitive structures,
such as a garage, to shield noise sensitive areas;
and, orienting buildings to shield outdoor spaces
from a noise source. These and other noise
mitigation techniques are discussed in more detail
in the City's Noise Guidelines Manual available in
the Planning Department.
C. OTHER MOBILE SOURCES
1. OFF ROAD MOTORCYCLE NOISE
Motorcycle noise has been a problem in
Carlsbad. In particular, complaints have been
registered against recreational use of dirt bikes or
two-cycle engine motorcycles. The Police
Department continues to enforce the prohibition
of motorized off-road vehicles within the City,
except as permitted at the Carlsbad Raceway.
Local jurisdictions have the authority to control
loud or faulty mufflers, horn blowing, off-road
vehicles and vehicle speed. Although noise limits
may be set for off-road vehicles, they are rarely
necessary since statutes against trespassing
nearly always apply.
Most trail bikes are not outfitted with the
necessary lights, fenders, mufflers, spark
arresters or baffles required by law.
Consequently they are not licensed and cannot
be legally operated on public streets. Continued
police enforcement against these unlicensed
vehicles would likely reduce motorcycle noise on
public streets.
2. MOTOR BOAT
This noise problem does not affect very many of
Carlsbad's residents. However, in response to
noise complaints, the City has adopted a
maximum speed limit for boats on the Agua
Hedionda Lagoon and has purchased a boat for
enforcement. The reduction in speed does
reduce noise somewhat. If further control
appears warranted, the City should consider
setting curfews on the use of the lagoon or limit
the types of boats which could use the lagoon.
3. MODIFIED VEHICLE EXHAUST SYSTEM
Vehicles operating on city streets which have
faulty or modified exhaust systems can cause
significant local noise impacts, especially when
operated in a "hot rod" manner. Continued
enforcement of the vehicle code is encouraged in
order to control this contributor to noise pollution.
Ill. NOISE CONTOUR
MAPS
The noise contour maps contained herein, show
1990 and 201 O noise contours for the following
transportation systems (See Maps 1 : Existing
Noise Exposure Contour Map (1990) and Map 2:
Future Noise Exposure Map (2010):
(1) Interstate 5
(2) State Highway 78
(3) Circulation Element Roadways of the
Carlsbad General Plan
(4) Rail
(5) McClellan-Palomar Airport
Substantial changes in traffic patterns or the
availability of new noise contour data may
indicate the need for revisions of this element.
Consequently, the noise contours contained in
this element should be reviewed and revised
periodically.
Noise levels for McClellan-Palomar Airport are
expressed in terms of Community Noise
Equivalent Level (CNEL), measured at 5 dB
increments and are mapped for the range of 55 to
75 dBA CNEL. Noise levels for freeways, prime
arterials and the railroad are expressed as CNEL
down to the 60 dBA. All other transportation
modes shown on the contour map are expressed
as CNEL down to the 55 dBA. Community Noise
Equivalent Level (CNEL) is based upon A-
weighted noise level, number or duration of noise
events, and time of occurrence throughout the 24
hour day. The CNEL measurement weights noise
occurrences in the evening and nighttime greater
than those in the daytime. Please refer to the
Carlsbad "Noise Guidelines Manual" for more
information regarding CNEL and general noise
science.
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.,,,.....
The airport's projected noise contours identified in
the adopted Comprehensive Land Use Plan for
McClellan-Palomar Airport are included in this
element (See Map 3: Airport Noise Contour
Map).
IV. GOALS, OBJECTIVES
AND IMPLEMENTING
POLICIES & ACTION
PROGRAMS
GENERAL
A. GOAL
A City which is free from excessive,
objectionable, or harmful noise.
B. OBJECTIVES
B.1 To create an ongoing noise identification
and control program.
B.2 To control harmful or undesirable noise.
B.3 To protect the hearing and well being of
Carlsbad residents and visitors.
C. IMPLEMENTING POLICIES AND
ACTION PROGRAMS
C.1 Control harmful or undesirable sounds
through the planning and regulatory
process with emphasis on noise/land-use
compatibility planning.
C.2 Review all development proposals, both
public and private, for consistency with the
policies of this element.
C.3 Review existing City ordinances which
relate to noise control for compatibility with
the goals and policies of this Element.
C.4 Continue to enforce building codes to
ensure adequate sound insulation between
dwellings and to ensure adequate sound
insulation of interior areas from loud
external noise sources. The City shall
continue to enforce project conditions of
approval related to noise control.
C.5 Attempt to control noise primarily at its
source. Where this is not feasible, controls
along the transmission path of the noise
should be required.
C.6 Control noise generated through its own
functions and activities and minimize noise
impacts resulting from City-sponsored or
approved activities.
C.7 Review City operations to make sure that
noise generated by construction,
maintenance activities, and street sweeping
minimize significant adverse noise levels.
C.8 Periodically review the noise contours
contained in this element. Substantial
changes in traffic patterns or the availability
of new noise contour data may indicate the
need for revisions.
C.9 Participate in noise control and hearing
conservation programs in all appropriate
work environments owned, operated, or
otherwise under the control of the City.
LAND USE
A. GOALS
A. 1 A City where land uses are not significantly
impacted by noise.
A.2 A City with industrial and commercial land
uses which do not produce significantly
adverse noise impacts.
A.3 A City which controls mobile sources of
noise to help assure that mobile noise
sources do not substantially contribute to
the noise environment.
B. OBJECTIVES
B.1 To achieve noise compatibility between
industrial/commercial and surrounding land
uses and achieve an acceptable noise
environment in industrial/commercial areas.
B.2 To achieve noise impact compatibility
between land uses through the land use
planning/development review process.
B.3 To actively control mobile noise violations.
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