HomeMy WebLinkAbout1989-09-06; Planning Commission; ; DI 89-06 - REPORT ON COMPLETION OF THE PLANNING COMMISSION NOISE SUBCOMMITTEE WORK PROGRAMDATE:
TO:
FROM:
SUBJECT:
September 6, 1989
PLANNING COMMISSION
DISCUSSION ITEM
PLANNING COMMISSION'S NOISE SUBCOMMITTEE:
Jeanne McFadden, Chair,
Bud Schlehuber
Tom Erwin
REPORT ON COMPLETION OF THE PLANNING COMMISSION NOISE SUBCOMMITTEE
WORK PROGRAM.
The subcommittee recently completed its work program. The committee was charged
with three tasks.
The first task was to develop an interim noise ordinance/standards/policy that
would be used until a complete revision on the City's Noise Element could be
done. The committee chose to develop an administrative noise policy to govern
the identification and mitigation of noise impacts by future development. That
policy would be implemented during Planning's CEQA analysis of any proposed
project. This policy was approved by the Planning Director and has been utilized
by staff to analyze the adequacy of a project's noise analysis and noise
mitigation. This analysis is presented to the Planning Commission within the
Environmental Discussion of the staff reports. A copy of the Administrative
Policy is provided as attachment "A".
The second charge of the committee was to reformat and bring into consistency
the City's existing Noise Element. This involved a variety of minor clerical
and technical updates along with reformatting the test. The new reformatted
consistency version of existing noise element is attached as Exhibit "B". It
will be considered and reviewed as part of the complete General Plan Update which
will be coming to the Planning Commission within the next couple of months.
The last charge of the subcommittee was to make potential recommendations to
staff for the complete revision of the City's noise element. These
recommendations would be presented to the consultant hired to work staff to
develop a new draft noise element. These recommendations are based on the
committee's review of a variety of noise elements throughout the state of
California.
ATTACHMENTS:
A. Administrative Policy #17 Concerning Noise
B. Consistency Version of Existing Noise Element
C. Recommendations for Revised Noise Element
LBS: l h
July 13, 1989
c1!J,
POLICY NO: ____ _
EFFECTIVE DATE: ____ _
PLANNING DEPARTMENT
ADMINISTRATIVE POLICY
13 PAGES
According to the Noise Control Act of 1973 Health & Safety Code 46000 ET. SEQ.,
the Planning and Zoning Law Government Code 65302 (f) and CEQA Public Resources
Code 2100 ER.SEQ. and until the City of Carlsbad's Noise Element is updated and
amended a "Noise" Study shall be submitted with all discretionary applications
for residential projects of five or more dwellings within:
1. 2,000 feet from the right-of-way of Interstate 5
2. 1,000 feet from the right-of-way of Highway 78
3. 500 feet from the railroad right-of-way
4. 500 feet from the right-of-way of an existing or future Circulation
Element Roadway as identified on the Carlsbad General Plan.
5. Within the McClellan Palomar Airport influence area as depicted on
the Comprehensive Land Use Plan for McClellan Palomar Airport.
This study shall be prepared by an acoustical professional and document the
projected noise level at buildout of Carlsbad's General Plan and mitigate the
projected buildout noise level to a maximum of 60 dba CNEL at:
I. Five feet inside the proposed project's property line at six feet
above finished grade level, and
2. !mediately above the highest window or door opening in a dwelling
unit.
If the Planning Comission or Design Review Board find that it is infeasible
and/or undesirable to mitigate the noise level to the above mentioned standards
then the following mitigation measures shall be implemented:
1. It shall be the responsibility of the developer of the project to
prove to the satisfaction of the Planning Commission or Design Review
Board why it is not feasible to comply with the above mentioned
standards.
2. All purchasers of the impacted properties shall be notified by a deed
disclosure in writing of the noise impact to these properties.
3. Well sealed, multi-paned windows shall be installed on all units that
do not comply with the above mentioned standards. When closed, these
windows shall reduce the interior noise level to 45 dba CNEL.
4. All units that do not comply with the above aentioned standards shall
have an artificial circulation system (air conditioning) installed
prior to occupancy of the unit.
In addition the following appropriate mitigations and/or conditions of approval
shall be incorporated into projects:
APPROVED BV:~_MI--+-'HA-E-=L--·J.._._;;H_O,.;;...~"""'z.-1-'"""~oc..R~f-L'-"..,_ __ __._ __ _
Planning Director
NO
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NOISE MITIGATION/CONDITIONS
ALL RESIDENTIAL PROJECTS AFFECTED BY ADMINISTRATIVE POLICY:
Mitigation prior to the approval of the proposed project, an
acoust i ca 1 analysis sha 11 be submitted to and approved by the
Planning Di rector which sha 11 i 11 ustrate the feas i bi 1 i ty of the
exterior mitigation measures required to achieve and maintain an
environment free of excessive or harmful noise.
ALL RESIDENTIAL PROJECTS NEAR EXISTING OR FUTURE TRANSPORTATION
CORRIDORS:
Prior to recordation of the fires final tract/parcel map or issuance
of building permits, whichever is first, the owner shall prepare and
record a notice that this property may be subject to impacts from
the proposed or existing Transportation Corridor in a manner meeting
the approval of the Planning Director and City Attorney {See form
Noise 1).
RESIDENTIAL PROJECTS WITHIN 3 MILES OF MCCLELLAN-PALOMAR AIRPORT AS
SHOWN ON THE AUGUST 1988 COUNTY OF SAN DIEGO NOISE CONTROL PLAN FOR
PALOMAR AIRPORT:
Prior to the recordation of the first final tract/parcel map or the
issuance of residential building permits, whichever is first, the
owner of record of the property within the boundaries of this
tentative tract/parcel map shall prepare and record a notice (Form
Noise 2) that this property is subject to overflight, sight, and
sound of aircraft operating from Palomar Airport in a manner meeting
the approval of the Planning Director and the City Attorney.
The applicant shall pose aircraft noise notification signs in all
sales and/or rental offices associated with the new development.
The number and 1 ocat ions of said signs sha 11 be approved by the
Planning Director. (See form Noise 3).
POTENTIAL NOISE GENERATING PROJECTS:
Mitigation prior to approval of any permits, an acoustical analysis
report and appropriate plans shall be submitted describing the noise
generation potential of the proposed project and proposed attenuation
measures to assure that an environment which is free from excessive
or harmful noise is achieved and maintained. The report shall be
submitted to the Planning Director for review and approval. The
approved attenuation features. shall be incorporated into the plans
and specifications of the proposed project.
RECORDING REQUESTED BY ANO
WHEN RECORDED RETURN TO
NOTICE
FORM: NOISE 1: 1 of 2
RECORDED IN OFFICIAL RECORDS OF
SAN DIEGO COUNTY, CALIFORNIA
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NOTICE CONCERNING PROXIMITY
OF THE PLANNED OR EXISTING ______ TRANSPORTATION CORRIDOR(S)
This Notice Concerning Environmental Impacts is made by _____ _
------,,.----' hereinafter referred to as the "Owner" is developer of certain real property situated in the City of Carlsbad, County of San Diego,
State of California.
RECITALS
A. The purpose of this notice is to disclose to the fullest extent
possible present and future potential impacts of noise generated by all manner
of vehicles including public and private vehicles which will generate noise and
other environmental impacts. Purchaser acknowledges and accepts these existing
and future impacts and forever waives any and all causes of action and covenants
not to sue the City of Carlsbad, its agents, servants or employees as to any
damages or injuries resulting from said impacts.
B. The Owner is the developer and/or holder of the title to certain real
property in the City of Carlsbad, County of San Diego, California, more fully
described as:
C. The property is located adjacent to the ______ Transportation
Corridor (hereafter described as corridor) on which transportation vehicles such
as automobiles, trucks, motorcycles and/or vehicles for rail and transit are
proposed to travel.
D. The property has been developed in compliance with City and State
Noise criteria which may include mitigation in the form of setbacks, earthen
berms, masonry walls and/or structure upgrades.
E. Owner has no control over the operations of the corridor including
the types of vehicles, trips and traffic, nor the frequency of the trips.
F. It is the desire of Owner to give notice to any potential purchaser
of the real property of its proximity to the corridor and the fact that purchases
may be subject to the impacts of said proposed transportation corridor.
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FORM: NOISE I: 2 of 2
NOW, THEREFORE, in light of the above Recitals, owner does, for itself, and its
successors and assigns, give the following notice:
1. Owner has and shall develop the property in accordance with a
Subdivision Tract/Parcel Map (CT/PM -__ ) approved by the City of Carlsbad,
which approval includes the requirement of the City of Carlsbad, that the
development of the property is consistent with the Land Use & Noise Element of
the General Plan of the City of Carlsbad.
2. That Owner has no responsibility or control over the operation of the
corridor, including without limitation, the types or number of vehicles operating
on the corridor.
3. That the vehicle operations on the corridor may create significant
impacts affecting the purchasers, tenants and occupants of the property and that
purchasers, tenants and occupants of the property reside there subject to sight
and sound of vehicle operation.
4. The property shall be held, conveyed, hypothecated, encumbered, leased,
rented, used, occupied and improved subject to this Notice. This Notice shall
run with the property and shall be binding upon all parties having or acquiring
any right, title or interest in the property.
5. The purpose of this notice is to disclose to the fullest extent
possible present and future potential impacts of noise generated by all manner
of vehicles including public and private vehicles which will generate noise and
other environmental impacts. Purchaser acknowledges and accepts these existing
and future impacts and forever waives any and all causes of action and covenants
not to sue the City of Carlsbad, its agents, servants or employees as to any
damages or injuries resulting from said impacts."
IN WITNESS WHEREOF, this Declaration of Notice of corridor traffic, sight and sound is made this __ day of ____ , __ _
CORPORATION ACKNOWLEDGEMENT:
or
PARTNERSHIP ACKNOWLEDGEMENT:
or
INDIVIDUAL ACKNOWLEDGEMENT:
WITNESS my hand and official seal
By:-----------
By:
Notary Public in and for said
County and State
3
RECORDING REQUESTED BY AND
WHEN RECORDED RETURN TO
FORM: NOISE 2: 1 of 3
RECORDED IN OFFICIAL RECORDS OF
SAN DIEGO COUNTY, CALIFORNIA
NOTICE CONCERNING AIRCRAFT
ENVIRONMENTAL IMPACTS
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This Declaration and Notice Concerning Aircraft Environmental Impacts is
made by ____________ , hereinafter referred to as the "Owner",
as developer of certain real property situated in the City of Carlsbad, County
of San Diego, State of California.
RECITALS
A. The Owner is the developer and holder of the title to certain real
property in the City of Carlsbad, County of San Diego, California,
more fully described as:
B. The property is located approximately-,--,----miles from the
McCellan-Palomar Airport, City of Carlsbad, San Diego County {the
"Airport"), operated by the County of San Diego, through which are
conducted certain aircraft operations on and about said Airport and
over real property in the vicinity of the Airport.
C. Owner has no control over the operations of the Airport, including
the types of aircraft, flight, the flight patterns of the aircraft,
nor the frequency of the flights.
D. It is the desire of Owner to give notice to any potential purchaser
of the real property of the air flight operation and the fact that
purchasers may be subject to overflight, sight and sound of aircraft
operating from the Airport
E. The purpose of this notice is to disclose to the fullest extent
possible present and future potential impacts of noise generated by
all manner of aircraft including public and private aircraft which
will generate noise and other environmental impacts.
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FORM: NOISE 2: 2 of 3
NOW, THEREFORE, in light of the above Recitals, as developer and owner of
the property, does, for itself, and its successors and assigns, give the
following notice:
I . Owner has and sha 11 deve 1 op the property in accordance with
Subdivision Tract Parcel Map (CT/PM-__ ) approved by the City of
Carlsbad, which approval includes the requirement of the City of
Carlsbad, that the development of the property is consistent with
the Land Use Element and Noise Element of the General Plan of the
City of Carlsbad.
2. That Owner has no responsibility or control over the operation of
the Airport, including without limitation, the types or number of
flight operations, types of aircraft (including jet aircraft), timing
of flight operation, or frequency of flights.
3. That the flight operations to the Airport may create significant
aircraft environmental impacts affecting the purchasers, tenants and
occupants of the property and that purchasers, tenants and occupants
of the property reside there subject to such overflight, sight and
sound.
4. The property sha 11 be held, conveyed, hypothecated, encumbered,
leased, rented, used, occupied and improved subject to this
Declaration and Notice. This Notice shall run with the property and
shall be binding upon all parties having or acquiring any right,
title or interest in the property.
5. The purpose of this notice is to disclose to the fullest extent
possible present and future potential impacts of noise generated by
all manner of aircraft including public and private aircraft which
will generate noise and other environmental impacts.
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FORM: NOISE 2: 3 of 3
IN WITNESS WHEREOF, this Declaration of Notice of aircraft overflight, sight and sound is made this _________ day of ______ , 19
STATE OF CALIFORNIA, COUNTY OF _____________ ) ss.
On ______ , 19 __ , before me, a Notary Puhl ic in and for said_County
and State, personally appeared---,--,,----,------,--and personally known to me (or proved to me on the basis of satisfactory evidence) to be the persons
who executed the within instrument as _________ President and ________ Secretary, on
behalf of --,------,-----,----,---------------' the corporation herein named, and acknowledged to me that such corporation executed
the within instrument pursuant to its by-laws or a resolution of its Board of
Directors.
WITNESS my hand and official seal.
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Notary Public in and for said
County and State
FORM: NOISE 3: 1 of 3
AIRCRAFT NOISE IMPACT AREA
New residential development property included within tract(s) and offered
for sale by this office is located approximately __ mile(s) ___ _ (north,
south, east, west) of McCellan-Palomar Airport, City of Carlsbad.
The property is within 3 miles of McCellan-Palomar Airport as shown on
the August 1988 County of San Diego Noise Control Plan for McCellan-Palomar
Airport (see page 3 of this notice). Residents of this area may frequently see,
hear, and have interference of certain activities by aircraft operating to and
or from McCellan-Palomar Airport. McCellan-Palomar Airport has the following
normal hours of operation for aircraft:
Monday through Saturday:
Sunday:
A Notice Concerning Aircraft Environmental Impacts has been recorded for this
project.
The purpose of this notice is to disclose to the fullest extent possible present
and future potential imp acts of noise generated by a 11 manner of aircraft
including public and private aircraft which will generate noise and other
environmental impacts.
For more information, please see your sales office representative at ___ _
LBS: l h
lance.noi
7
Form Noise 3 2 of 3
PD _Admln policy
N -D
VFR ARRIVALS
MIN. Al T. 2100' (AGL)
"ABOVE GROUND LEVEL"
UNTIL ENTERING
J MILE RADIUS
SHADED AREAS ARE
NOISE SENSITIVE
JETS USE ILS
PRACTICE VOR APPROACHES
TO PUBLISHED MINIMUMS
NOT RECOMMENDED
STRAIGHT OUT DEPARTURE
HEADING 24!i" UNTIL SHORELINE
NO JET TRAINING
MAXIMUM SIZE AIRCRAFT
&0.000 LBS. GROSS WEIGHT
MILITARY-PRIOR APPROVAL REQUIRED.
The Palomar Aupo,I N0tw Conuol Plan" dftogned to one som·
pie purpow:
Prowide piloa with a •°""'latV plan in _d._ with FAA
euidalinN.
The ,e,..on for 1h15,. 1qu,1lly ,,mple:
L-flying aircraft of all rypet are tha l'Nlan lingl• N>Urce of
ciu .. n compialna.
lnc•e••ong a1111udo, from HXIO' AGL 10 2000' AGL w,11 rertuce
no,,e p, ... u,e al ground lrvel by 6 db (Double ag.,,n 10 411(J()'
AGL oiod you reduce ano1he1 6 dh I l his 11 a ,1g,11hc.tnl n,au"e re
duction 1f you 1e.ih1e thil .-o uw:reai-e ol 10 tlb lloul>les ~t.M..md
l~vtd.
Hf'M ad1us1men1s s.hould he m,n,m11ed u1111I eruermg J>alte1u
Mdny c111,en\ 4rt thS1ulltt>d l.Jy lhal cn.mgc III sound of t'Uyme
p11ch. Encinitas
PALOMAR AIRPORT
Noise Control Plan
''l'ALOMAM TOWER"
··rALOMAR GRou ... o--
PALOM"R A TIS
PALOMAR MILITARY
''PALOMAR UNICOM"'
110 ,r:. ..... .,
3920 .... ,
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TOWER HOURS ND T CON flNUOtJS ----------'·""~ FLO !:LEV 328' P•n.,n •'"'""• l. '1'11/
1J .Y1,•no R/W 74/()6 4 ](JO' X 15()' -~ ) .
Olivenhain • u,
CITY OF CARLSBAD
GENERAL PLAN
NOISE ELEMENT
UPDATED: 1989
I
TABLE OF CONTENTS
Im: N>.
I. INTRODUCTION
A. BACKGROUND IV-1
B. STATE LAW IV-1
C. RELATIONSHIP TO OTHER ELEMENTS IV-2
II. GOALS, OBJECTIVES AND IMPLEMENTING POLICIES
AND ACTION PROGRAMS
1. GENERAL IV-2
2. CIRCULATION IV-3
ROADS IV-3
AIRPORT IV-4
TRAIN IV-4
3. LAND USE IV-5
III. SOURCES OF NOISE
A. CIRCULATION IV-6
ROADS IV-6
AIRPORT IV-7
TRAIN IV-7
B. LAND USE IV-9
C. MOBILE IV-9
IV. NOISE CONTOUR MAP IV-1O
I. INTRODUCTION
A. BACKGROUND
The goal of the Noise Element is to achieve and maintain an
environment which is free from excessive or harmful noise.
The Noise Element
Identifies and maps Noise Contours from sources of noise within
or adjacent to the City of Carlsbad.
Establishes goals and objectives to mitigate these noise
impacts.
Provides policies and action programs to implement these
policies.
B. AUTHORITY-STATE LAW
Section 65302(f) of California's Planning and Zoning Laws requires
a Noise Element which shall identify and appraise 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 on-line 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.
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 co11111unity 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.
IV-1
I
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 sha 11 serve as a guide 1 i ne for
compliance with the state's Noise Insulation Standards.
C. RELATIONSHIP TO OTHER ELEMENTS OF THE GENERAL PLAN
The Noise Element is correlated with the Land Use, Ci rcul at ion,
Scenic Highways 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 and Scenic
roadways Elements are related to the Noise Element in that the
majority of the noise created in Carlsbad is created by trains,
planes or automobiles. The Haus i ng Element re 1 ates 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. GOALS, OBJECTIVES AND IMPLEMENTING POLICIES AND ACTION PROGRAMS
I. GENERAL
A. GOAL
Achieve and maintain an environment which is free from
excessive or harmful noise through identification, control and
abatement.
B. OBJECTIVE
To create an ongoing noise identification and control program
consistent with this Noise Element.
C. IMPLEMENTING POLICIES AND ACTION PROGRAMS
C.1 The City shall protect the hearing and well being of
Carlsbad's residents by controlling and abating harmful
or undesirable sounds through the planning and regulatory
process.
C.2 The City shall adopt a noise ordinance to prohibit
unwanted and unnecessary sounds of all types within the
community.
C.3 The City shall develop a noise enforcement and regulation
program and consider assigning an existing staff member
IV-2
or creating an administrative position within the City
to be concerned with noise problems.
C.4 The City shall review existing ordinances which relate
to noise control for compatibility with goals and
policies of this Element.
C.5 The City shall enforce building codes to ensure adequate
sound i nsul at ion between dwellings and to ensure adequate
sound insulation of interior areas from loud external
noise sources.
C.6 The City shall attempt to control noise primarily at its
source. Where this is not feasible, controls along the
transmission path of the noise shall be encouraged.
C.7 The City shall take into consideration the acceptability
of noise levels in approving or granting a permit or
entitlement for any public or private project.
C.8 The City shall control noise generated through its own
functions and activities.
C.9 The City shall review City operations to make sure that
noise generated by construction, maintenance activities,
and street sweeping has reduced to the lowest possible
level.
C.10 The City shall include maximum noise level requirements
in specifications for equipment purchases, construction
contracts, and refuse collection. Where specific noise
levels cannot be set, specification should require that
vendors state maximum noise levels expected to be
produced by their equipment and/or operations.
2. CIRCULATION
ROADS
A. GOAL
Provide a roadway system that does not subject surrounding land
uses to inappropriate noise levels.
B. OBJECTIVE
To design and manage all roadways to maintain acceptable noise
1 evel s.
IV-3
C. IMPLEMENTING POLICIES AND ACTION PROGRAMS
C.1 The City shall take measures to reduce traffic noise on
streets throughout Carlsbad.
C.2 The City shall consider noise impacts in the design of
road system. Giving special consideration to those road
corridors in scenic or noise sensitive areas.
C.3 The City shall review traffic flow systems and
synchronize signalization, wherever possible to avoid
traffic stops which produce excessive noise, and to
adjust traffic flow to achieve noise levels acceptable
to surrounding areas.
C.4 Develop noise standards for use in reviewing the
construction or improvement of any roadway, railroad,
transit system or noise producing facility.
AIRPORT
A. GOAL
Assure the continued long-term compatibility between the
airport and surrounding land use.
B. OBJECTIVE
To adopt and enforce an airport noise disclosure and control
program that provides noise compatibility.
C. IMPLEMENTING POLICIES AND ACTION PROGRAMS
TRAINS
C.I The City shall encourage the development of compatible
land uses surrounding airport facilities.
C.2 The City shall utilize the noise standards contained in
the Comprehensive Land Use Plan for Palomar Airport.
A. GOAL
Assure railroad travel through Carlsbad is not disruptive.
B. OBJECTIVE
To develop, maintain and manage mitigation of railroad noise
and vibration.
IV-4
C. IMPLEMENTING POLICY ANO ACTION PROGRAM
C.l Develop noise standards for use in reviewing the
construction or improvement of any railroad.
LAND USE
A. GOALS
A. l Develop and maintain industrial/commercial 1 and uses
which do not produce noise impacts.
A.2 Develop and maintain a land use pattern that pr9vides
for noise impact compatibility.
A.3 Control mobile sources of noise to help assure mobile
noise sources do not substant i a 1 ly contribute to the
noise environment.
B. OBJECTIVES
B.l 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 pl anni ng/devel opment review process.
B.3 To actively control mobile noise violations.
C. IMPLEMENTING POLICIES AND ACTION PROGRAMS
C.l The City encourages the development of compatible land
uses in areas which are subject to noise hazards.
C.2 The City shall develop specific noise standards for use
in reviewing deve 1 opment in noise sensitive 1 and use
areas.
C.3 The City shall utilize a site plan review process for
all residential or other noise sensitive construction
in areas subject to ambient noise levels in excess of
adopted standards. This site plan review should
incorporate measures for mitigating noise impacts, such
as setbacks, construction of barriers and sound
insulation.
C.4 The City shall enforce the Motor Vehicle Code as it
applies to excessive noise.
IV-5
C.5 Develop noise standards for use in reviewing the
construction or improvement of any noise producing
facility.
C.6 Until a permanent noise mitigation ordinance is adopted
to be utilized in the review of residential development
projects impacted by transportation corridors, an
administrative policy shall be adopted. The policy shall
require that a "Noise" Study be submitted with all
discretionary applications for residential projects of
five or more dwellings within:
III. SOURCES OF NOISE
A. CIRCULATION
I. ROADS
1. 2,000 feet from the right-of-way of Interstate 5.
2. 1,000 feet from the right-of-way of Highway 78.
3. 500 feet from the railro~d right-of-way.
4. 500 feet from the right-of-way of an existing or
future Circulation Element Roadway as identified
on the Carlsbad General Plan.
5. Within the McClellan Palomar Airport influence area
as depicted on the Comprehensive Land Use Plan for
McClellan Palomar Airport.
The policy establishes 60 dba CNEL as the exterior noise
level that residential units must be mitigated to and
requires disclosure requirements (easements, deed
restrictions, recorded notice, etc.) for purchasers.
Roadway traffic noise is the most extensive noise problem faced
by Carlsbad. Barring any dramatic changes in 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.
Un 1 ess precautionary measures are taken, serious noise prob 1 ems
could result.
Vehicular noise has three main component sources: engine
noise, exhaust noise and tire noise. The intensity of noise
emissions for any given automobile may also vary with other
factors, such as speed, acceleration, braking, 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.
IV-6
Noise contours have been prepared for the following roadways:
1. Interstate 5
2. State Highway 78
3. El Camino Real
4. Palomar Airport Road
Of these four routes, I-5 has the greatest existing and
projected noise emissions. In addition, I-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). 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 residential units from freeway noise through the
use of barriers and insulation materials.
For Highway 78, Palomar Airport Road and El Camino Real,
existing noise pro bl ems are not so severe. Virtually no
dwellings in Carlsbad front on either Highway 78 or Palomar
Airport Road.
It is important that new deve 1 opment fronting on major roadways
be compatible with the recommendations of this Element. The
action p 1 an section of this Element contains the measures
intended to avert future problems caused by traffic noise.
2. AIRPORT
Palomar Airport is presently operating as a general aviation
facility at El Camino Real and Palomar Airport Road. The
airport's current annual operation of approximately 200,000
aircraft is expected to increase at the airport's ultimate
buildout condition. 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
Palomar Airport. In 1989 the FAA will begin a detailed noise
study for Palomar Airport. However, all new development in
the vicinity of the Airport should be reviewed to ensure
compliance to the noise standards contained in this element
and the Comprehensive Land Use Plan for Palomar Airport.
3. TRAIN
The AT&SF Railroad runs parallel to the coastline through its
6 1/2 mile length in Carlsbad. The railroad right-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
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of Tamarack through the downtown beach area and centra 1
business district.
AMTRACK operates nine daily passenger trains from San Diego
to Los Angeles. Additionally, a number of freight trains pass
through Carlsbad daily, some after 5 P .M. These nighttime
freight trains are of particular concern because they run
during the evening hours. By the end of 1992, it is projected
that a commuter trail will run at least four daily trips from
Oceanside to San Diego with two stops in Carlsbad.
There are several sources of railroad noise. The majority of
the noise emanates from the 1 ocomot i ve ( 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. The
"bulges" in the noise contour for the railroad indicate points
at which warning whistles are sounded.
For existing 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 ambient 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 a noise barrier.
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 effective design
and sound insulation can help control future noise problems
near the railroad.
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Project design should stress the orientation of units away from
the railroad, limiting window openings onto the right-of-way,
and construction of noise barriers such as solid walls or
earthen beams.
B. LAND USE
Land Use can generate noise and noise impacts. The Carlsbad
Municipal Code, and in particular, Chapter 21.34, addresses the most
significant Land Use Generated Noise.
C. MOBILE
C.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.
In 1975 the California Motor Vehicle Code sets limits on
motorcycle noise at 32 dB(A) for speeds under 35 MPH and 86
dB(A) at speeds over 35 MPH, measured at a distance of 50 feet.
One drawback of these regulations was that although testing
and instrumentation procedures were established, no provision
was made for enforcement or penalties. Only "private cause
of action" against the vehicle manufacturer is allowed.
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.
Control of recreational motorcycle riding is difficult because
of the mobility of the offenders and requirements for police
enforcement. The Carlsbad Police Department currently has off
road patrols with four wheel drive vehicles and motorcycles.
Most trail bikes are not outfitted with the necessary lights,
fenders, mufflers, spark arrestors or baffles required by law.
Consequently they are not 1 icensed and cannot be 1 egal ly
operated on public streets. Stepping up police enforcement
against these unlicensed vehicles would likely reduce
motorcycle noise on public streets.
C.2 In the past, motorboat noise has been the most frequent noise
complaint registered with the Carlsbad Police Department.
Although the problem does not affect very many of Carlsbad's
residents, it has been a cons i derab 1 e annoyance to persons
1 iving along the north shore of the inner Agua Hedionda Lagoon.
The City has adopted a maximum speed limit for boats on the
lagoon and has purchased a boat for enforcement. The reduction
in speed does reduce noise somewhat. If further control
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appears warranted, the City should set curfews on the use of
the lagoon or limit the types of boats which could use the
1 agoon.
IV. NOISE CONTOUR MAP
The noise contour map which is included as part of this Element shows 1975
noise contours for the following transportation systems:
(1) Interstate 5
(2) Highway 78
(3) El Camino Real
(4) Palomar Airport Road
(5) Atcheson, Topeka and Santa Fe Railroad
(6) Palomar Airport
It is recommended that the noise contours contained in this Element be
reviewed and revised, if necessary, every five years. Substantial changes
in traffic patterns or the availability of new noise contour data may
require more immediate revision.
The City may compute noise contours for additional roadways by formula
prepared by Wyl e Laboratories: Development of Ground Transportation Systems
Noise Contour for the San Diego Region, CPO, December, 1973; utilizing
existing data on traffic volume and speed, roadway grade, surface
condition, and percentage truck traffic.
Noise level for Palomar Airport are expressed in terms of California Noise
Equivalent Level (CNEL), measured at 5 dB(A) increments and continued down
to 60 dB(A). All other transportation modes shown on the contour map are
expressed as 65 dB(A) Day-Night Average Level (Ldn). Both are based upon
A-weighted noise measurements, and are further corrected for single event
durations and frequency of occurrence throughout the 24 hour day. The CNEL
measurement weights noise occurrences in the evening and nighttime greater
than those in the daytime. The Ldn measurement provides similar weighting,
but groups daytime and evening noise occurrences together. Normally the
Ldn and CNEL measurement will agree within decibel and for all practical
purposes be considered synonymous.
The airport's projected noise contours identified in the 1986 Comprehensive
Land Use Plan for McCellan-Palomar Airport are included in this element.
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I
-·-------
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NOIA ~ CARLSBAD Of THI GEN
NOJH CONTOUll MAP UJtJ. PLAN , '
CITY CX: CARI..SBAO
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----j -......... -........... ___ ._
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=1GURE 2
'8RPORT INFLUENCE AREA
>ROJECTED NOISE CONTOURS,
'.::LEAR ZONES AND
=uGHT ACTIVITY ZONE
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:AIRPORT INFLUENCE AREA
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McCLELLAN-PALOMAR AIRPORT
-
RECOfl4ENDATIONS FOR REVISED NOISE ELEMENT
► Ask that a Noise Element consultant and City staff address the issue of
development of a comprehensive Noise Ordinance concurrent with the
development and adoption of a revised Noise Element.
► Ask that a Noise Element consultant and City staff address development of
a comprehensive definition of "noise".
► Development of a clearly understandable and uniform method to measure noise
and noise impacts.
► Development of a certificate process for noise consultants working in the
City of Carlsbad.
► Evaluation of the appropriateness and feasibility of Planning Department
Administrative Policy No. 17, which deals with noise. This evaluation
should clearly indicate whether the policy is adequately identifying and
mitigating noise impacts. Evaluate the pro's and con's.
► Review the conclusions and requirements of the FAA, Part 150 study being
conducted for Palomar Airport.
► Attempt to develop a land use/noise compatibility matrix consistent with
Palomar Airport Comprehensive Land Use Plan.
► Provide both a clearly understandable noise contour map and noise impact
table indicating distances of noise impact from existing and ultimate
potential noise sources.
► Provide a Revised Noise Element which clearly communicates the City's noise
environment, policies and standards.
► Explore the creation of new public works standards for circulation element
roadways based on noise impacts generated by such roadways. New public
work standards could explore expanded right-of-way and require a
incorporation of noise mitigation for such roadways.
► Explore the possibility of creating funding mechanisms, such as assessment
districts when requested by existing neighborhoods that can be utilized
by existing noise impacted neighborhoods to pay for noise mitigation.
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