HomeMy WebLinkAboutAppendix H - Noise Impact Analysis
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA
Prepared for:
Mr. Guy Selleck
Builder’s Max Inc.
1207 N. East Street
Anaheim, CA 92805
Prepared by:
MD Acoustics, LLC
Rachel Edelman, INCE-USA
Sarah Ostergaard, INCE-USA
1197 Los Angeles Ave, Ste C-256
Simi Valley, CA 93065
Date: 1/28/2025
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA Table of Contents
MD Acoustics, LLC ii
JN: 09112101_Report
TABLE OF CONTENTS
1.0 Introduction .................................................................................................................................... 1
1.1 Purpose of Analysis and Study Objectives 1
1.2 Site Location and Study Area 1
1.3 Proposed Project Description 1
2.0 Fundamentals of Noise ................................................................................................................... 4
2.1 Sound, Noise, and Acoustics 4
2.2 Frequency and Hertz 4
2.3 Sound Pressure Levels and Decibels 4
2.4 Addition of Decibels 4
2.5 Human Response to Changes in Noise Levels 5
2.6 Noise Descriptors 5
2.7 Traffic Noise Prediction 6
2.8 Sound Propagation 6
3.0 Ground-Bourne Vibration Fundamentals ....................................................................................... 8
3.1 Vibration Descriptors 8
3.2 Vibration Perception 8
3.3 Vibration Propagation 8
4.0 Regulatory Setting ......................................................................................................................... 10
4.1 Federal Regulations 10
4.2 State Regulations 10
4.3 City of Lake Elsinore Noise Regulations 12
5.0 Study Method and Procedure ....................................................................................................... 14
5.1 Noise Measurement Procedure and Criteria 14
5.2 Noise Measurement Locations 14
5.3 Stationary Noise Modeling 14
6.0 Existing Noise Environment .......................................................................................................... 17
6.1 Short-Term Noise Measurement Results 17
6.2 Long-Term Noise Measurement Results 17
7.0 Future Noise Environment Impacts and Mitigation ..................................................................... 18
7.1 Future Exterior Noise 18
7.1.1 Noise Impacts to Off-Site Receptors Due to Stationary Sources 18
7.2 Noise Reduction Measures 19
8.0 Construction Noise Impact ........................................................................................................... 21
8.1 Construction Noise 21
8.2 Construction Vibration 22
9.0 References .................................................................................................................................... 24
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City of Lake Elsinore, CA Table of Contents
MD Acoustics, LLC iii
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LIST OF APPENDICES
Appendix A: Field Measurement Data ................................................................................................... 1
Appendix B: Referenced Traffic Data ..................................................................................................... 2
Appendix C: SoundPLAN Input and Output ............................................................................................ 3
Appendix D: Construction Modeling Output .......................................................................................... 4
LIST OF EXHIBITS
Exhibit A: Location Map ..................................................................................................................... 2
Exhibit B: Site Plan .............................................................................................................................. 3
Exhibit C: Typical A-Weighted Noise Levels ....................................................................................... 4
Exhibit D: Land Use Compatibility Guidelines .................................................................................. 11
Exhibit E: Measurement Locations .................................................................................................. 16
Exhibit F: Operational Noise Levels ................................................................................................. 20
LIST OF TABLES
Table 1: Lake Elsinore Exterior Noise Limits ............................................................................................. 12
Table 2: Reference Sound Level Measurements for SoundPLAN Model ................................................. 15
Table 3: Short-Term Nosie Measurement Data (dBA)1 ............................................................................ 17
Table 4: Long-Term Nosie Measurement Data (dBA)1 ............................................................................. 17
Table 5: Worst-case Predicted Operational Noise Levels (dBA) ............................................................... 19
Table 6: Typical Construction Equipment Noise Levels1 ........................................................................... 21
Table 7: Guideline Vibration Damage Potential Threshold Criteria ......................................................... 23
Table 8: Vibration Source Levels for Construction Equipment1 ............................................................... 23
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA Introduction
1
1.0 Introduction
1.1 Purpose of Analysis and Study Objectives
This noise assessment was prepared to evaluate the potential noise impacts for the project study area
and to recommend noise mitigation measures, if necessary, to minimize the potential noise impacts. The
assessment was conducted and compared to the noise standards set forth by the Federal, State, and
Local agencies. Consistent with the City’s Noise Guidelines, the project must demonstrate compliance to
the applicable noise criterion as outlined within the City’s Noise Element and Municipal Code.
The following is provided in this report:
A description of the study area and the proposed project
Information regarding the fundamentals of noise
A description of the local noise guidelines and standards
An analysis of traffic noise impacts to and from the project site
An analysis of stationary noise impacts to and from the project site
An analysis of construction noise impacts
1.2 Site Location and Study Area
The project site is located across two parcels (371-150-001, 371-150-002) in the City of Lake Elsinore,
California, as shown in Exhibit A. The project is seeking to merge the two parcels into one and rezone
the land from the current designation of R-2 Light-Medium Residential to C-M Commercial-
Manufacturing. The proposed use is commercial. Land uses surrounding the site include vacant land to
the northwest and northeast, Grand Avenue to the southwest with commercial uses further, and single-
family residential uses to the southeast.
1.3 Proposed Project Description
The Project proposes to develop the site with two (2) buildings consisting of 121,430 square feet of
warehouse space, offices, and mezzanines on the approximately 6.77-acre site. The site is also to include
a parking lot with 180 parking stalls. Exhibit B demonstrates the site plan for the project.
Construction activities within the Project area will consist of site preparation, on-site grading, building,
paving, and architectural coating.
The closest existing sensitive receptors (to the site area) are the residential land uses located
approximately 185 feet to the southeast of the project site.
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA
Exhibit A
Location Map
2
SITE
Exhibit B
Site Plan
3
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA
Rome Hill Commercial Project
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City of Lake Elsinore, CA Fundamentals of Noise
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2.0 Fundamentals of Noise
This section of the report provides basic information about noise and presents some of the terms used
within the report.
2.1 Sound, Noise, and Acoustics
Sound is a disturbance created by a moving or vibrating source and is capable of being detected by the
hearing organs. Sound may be thought of as mechanical energy of a moving object transmitted by
pressure waves through a medium to a human ear. For traffic or stationary noise, the medium of concern
is air. Noise is defined as sound that is loud, unpleasant, unexpected, or unwanted.
2.2 Frequency and Hertz
A continuous sound is described by its frequency
(pitch) and its amplitude (loudness). Frequency
relates to the number of pressure oscillations per
second. Low-frequency sounds are low in pitch (bass
sounding) and high-frequency sounds are high in
pitch (squeak). These oscillations per second (cycles)
are commonly referred to as Hertz (Hz). The human
ear can hear from the bass pitch starting at 20 Hz to
the high pitch of 20,000 Hz.
2.3 Sound Pressure Levels and Decibels
The amplitude of a sound determines its loudness.
The loudness of sound increases or decreases as the
amplitude increases or decreases. Sound pressure
amplitude is measured in units of micro-Newton per
square inch meter (N/m2), also called micro-Pascal
(µPa). One µPa is approximately one hundred
billionths (0.00000000001) of normal atmospheric
pressure. Sound pressure level (SPL or Lp) is used to
describe in logarithmic units the ratio of actual
sound pressures to a reference pressure squared.
These units are called decibels abbreviated dB. Exhibit C illustrates references sound levels for different
noise sources.
2.4 Addition of Decibels
Because decibels are on a logarithmic scale, sound pressure levels cannot be added or subtracted by
simple plus or minus addition. When two sounds or equal SPL are combined, they will produce an SPL 3
dB greater than the original single SPL. In other words, sound energy must be doubled to produce a 3 dB
increase. If two sounds differ by approximately 10 dB, the higher sound level is the predominant sound.
Exhibit C: Typical A-Weighted Noise Levels
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City of Lake Elsinore, CA Fundamentals of Noise
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2.5 Human Response to Changes in Noise Levels
In general, the healthy human ear is most sensitive to sounds between 1,000 Hz and 5,000 Hz, (A-
weighted scale) and it perceives a sound within that range as being more intense than a sound with a
higher or lower frequency with the same magnitude. For purposes of this report as well as with most
environmental documents, the A-scale weighting is typically reported in terms of A-weighted decibel
(dBA). Typically, the human ear can barely perceive the change in the noise level of 3 dB. A change in 5
dB is readily perceptible, and a change in 10 dB is perceived as being twice or half as loud. As previously
discussed, a doubling of sound energy results in a 3 dB increase in sound, which means that a doubling
of sound energy (e.g. doubling the volume of traffic on a highway) would result in a barely perceptible
change in sound level.
2.6 Noise Descriptors
Noise in our daily environment fluctuates over time. Some noise levels occur in regular patterns, others
are random. Some noise levels are constant while others are sporadic. Noise descriptors were created
to describe the different time-varying noise levels.
A-Weighted Sound Level: The sound pressure level in decibels as measured on a sound level meter using
the A-weighted 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. A numerical method of
rating human judgment of loudness.
Ambient Noise Level: The composite of noise from all sources, near and far. In this context, the ambient
noise level constitutes the normal or existing level of environmental noise at a given location.
Community Noise Equivalent Level (CNEL): The average equivalent A-weighted sound level during a 24-
hour day, obtained after the addition of five (5) decibels to sound levels in the evening from 7:00 to 10:00
PM and after the addition of ten (10) decibels to sound levels in the night before 7:00 AM and after 10:00
PM.
Decibel (dB): A unit for measuring the amplitude of a 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 micro-pascals.
dB(A): A-weighted sound level (see definition above).
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.
Habitable Room: Any room meeting the requirements of the Uniform Building Code or other applicable
regulations which are intended to be used for sleeping, living, cooking, or dining purposes, excluding such
enclosed spaces as closets, pantries, bath or toilet rooms, service rooms, connecting corridors, laundries,
unfinished attics, foyers, storage spaces, cellars, utility rooms, and similar spaces.
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City of Lake Elsinore, CA Fundamentals of Noise
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L(n): The A-weighted sound level exceeded during a certain percentage of the sample time. For example,
L10 in the sound level exceeded 10 percent of the sample time. Similarly, L50, L90, and L99, etc.
Noise: Any unwanted sound or sound which is undesirable because it interferes with speech and hearing,
or is intense enough to damage hearing, or is otherwise annoying. The State Noise Control Act defines
noise as "...excessive undesirable sound...".
Outdoor Living Area: Outdoor spaces that are associated with residential land uses typically used for
passive recreational activities or other noise-sensitive uses. Such spaces include patio areas, barbecue
areas, jacuzzi areas, etc. associated with residential uses; outdoor patient recovery or resting areas
associated with hospitals, convalescent hospitals, or rest homes; outdoor areas associated with places of
worship which have a significant role in services or other noise-sensitive activities; and outdoor school
facilities routinely used for educational purposes which may be adversely impacted by noise. Outdoor
areas usually not included in this definition are: front yard areas, driveways, greenbelts, maintenance
areas and storage areas associated with residential land uses; exterior areas at hospitals that are not used
for patient activities; outdoor areas associated with places of worship and principally used for short-term
social gatherings; and, outdoor areas associated with school facilities that are not typically associated with
educational uses prone to adverse noise impacts (for example, school play yard areas).
Percent Noise Levels: See L(n).
Sound Level (Noise Level): The weighted sound pressure level obtained by use of a sound level meter
having a standard frequency filter for attenuating part of the sound spectrum.
Sound Level Meter: An instrument, including a microphone, an amplifier, an output meter, and frequency
weighting networks for the measurement and determination of noise and sound levels.
Single Event Noise Exposure Level (SENEL): The dB(A) level which, if it lasted for one second, would
produce the same A-weighted sound energy as the actual event.
2.7 Traffic Noise Prediction
Noise levels associated with traffic depends on a variety of factors: (1) volume of traffic, (2) speed of
traffic, (3) auto, medium truck (2 axle), and heavy truck percentage (3 axle and greater), and sound
propagation. Greater volume of traffic, higher speeds, and larger truck percentages equate to a louder
volume in noise. A doubling of the Average Daily Traffic (ADT) along a roadway will increase noise levels
by approximately 3 dB; reasons for this are discussed in the sections above.
2.8 Sound Propagation
As sound propagates from a source it spreads geometrically. Sound from a small, localized source (i.e., a
point source) radiates uniformly outward as it travels away from the source in a spherical pattern. The
sound level attenuates at a rate of 6 dB per doubling of distance. The movement of vehicles down a
roadway makes the source of the sound appear to propagate from a line (i.e., line source) rather than a
point source. This line source results in the noise propagating from a roadway in a cylindrical spreading
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City of Lake Elsinore, CA Fundamentals of Noise
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versus a spherical spreading that results from a point source. The sound level attenuates for a line source
at a rate of 3 dB per doubling of distance.
As noise propagates from the source, it is affected by the ground and atmosphere. Noise models use
hard site (reflective surfaces) and soft site (absorptive surfaces) to help calculate predicted noise levels.
Hard site conditions assume no excessive ground absorption between the noise source and the receiver.
Soft site conditions such as grass, soft dirt, or landscaping attenuate noise at a rate of 1.5 dB per doubling
of distance. When added to the geometric spreading, the excess ground attenuation results in an overall
noise attenuation of 4.5 dB per doubling of distance for a line source and 7.5 dB per doubling of distance
for a point source.
Research has demonstrated that atmospheric conditions can have a significant effect on noise levels
when noise receivers are located 200 feet from a noise source. Wind, temperature, air humidity, and
turbulence can further impact have far sound can travel.
Rome Hill Commercial Project
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City of Lake Elsinore, CA Ground-Bourne Vibration Fundamentals
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3.0 Ground-Bourne Vibration Fundamentals
3.1 Vibration Descriptors
Ground-borne vibrations consist of rapidly fluctuating motions within the ground that have an average
motion of zero. The effects of ground-borne vibrations typically only cause a nuisance to people, but at
extreme vibration levels, damage to buildings may occur. Although ground-borne vibration can be felt
outdoors, it is typically only an annoyance to people indoors where the associated effects of the shaking
of a building can be notable. Ground-borne noise is an effect of ground-borne vibration and only exists
indoors since it is produced from noise radiated from the motion of the walls and floors of a room and
may also consist of the rattling of windows or dishes on shelves.
Several different methods are used to quantify vibration amplitude.
PPV – Known as the peak particle velocity (PPV) which is the maximum instantaneous peak in vibration
velocity, typically given in inches per second.
RMS – Known as root mean squared (RMS) can be used to denote vibration amplitude
VdB – A commonly used abbreviation to describe the vibration level (VdB) for a vibration source.
3.2 Vibration Perception
Typically, developed areas are continuously affected by vibration velocities of 50 VdB or lower. These
continuous vibrations are not noticeable to humans whose threshold of perception is around 65 VdB.
Outdoor sources that may produce perceptible vibrations are usually caused by construction equipment,
steel-wheeled trains, and traffic on rough roads, while smooth roads rarely produce perceptible ground-
borne noise or vibration. To counter the effects of ground-borne vibration, the Federal Transit
Administration (FTA) has published guidance relative to vibration impacts. According to the FTA, fragile
buildings can be exposed to ground-borne vibration levels of 0.3 inches per second without experiencing
structural damage.
3.3 Vibration Propagation
There are three main types of vibration propagation: surface, compression, and shear waves. Surface
waves, or Rayleigh waves, travel along the ground’s surface. These waves carry most of their energy
along an expanding circular wavefront, similar to ripples produced by throwing a rock into a pool of
water. P-waves, or compression waves, are body waves that carry their energy along an expanding
spherical wavefront. The particle motion in these waves is longitudinal (i.e., in a “push-pull” fashion). P-
waves are analogous to airborne sound waves. S-waves, or shear waves, are also body waves that carry
energy along an expanding spherical wavefront. However, unlike P-waves, the particle motion is
transverse, or side-to-side and perpendicular to the direction of propagation.
As vibration waves propagate from a source, the vibration energy decreases in a logarithmic nature and
the vibration levels typically decrease by 6 VdB per doubling of the distance from the vibration source.
As stated above, this drop-off rate can vary greatly depending on the soil but has been shown to be
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City of Lake Elsinore, CA Ground-Bourne Vibration Fundamentals
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effective enough for screening purposes, in order to identify potential vibration impacts that may need
to be studied through actual field tests.
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City of Lake Elsinore, CA Regulatory Setting
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4.0 Regulatory Setting
The proposed project is located in the sphere of the City of Lake Elsinore and noise regulations are
addressed through the efforts of various federal, state, and local government agencies. The agencies
responsible for regulating noise are discussed below.
4.1 Federal Regulations
The adverse impact of noise was officially recognized by the federal government in the Noise Control Act
of 1972, which serves three purposes:
Publicize noise emission standards for interstate commerce
Assist state and local abatement efforts
Promote noise education and research
The Federal Office of Noise Abatement and Control (ONAC) originally was tasked with implementing the
Noise Control Act. However, it was eventually eliminated leaving other federal agencies and committees
to develop noise policies and programs. Some examples of these agencies are as follows: The
Department of Transportation (DOT) assumed a significant role in noise control through its various
agencies. The Federal Aviation Agency (FAA) is responsible to regulate noise from aircraft and airports.
The Federal Highway Administration (FHWA) is responsible to regulate noise from the interstate highway
system. The Occupational Safety and Health Administration (OSHA) is responsible for the prohibition of
excessive noise exposure to workers.
The federal government advocates that local jurisdictions use their land use regulatory authority to
arrange new development in such a way that “noise sensitive” uses are either prohibited from being
constructed adjacent to a highway or that the developments are planned and constructed in such a
manner that potential noise impacts are minimized.
Since the federal government has preempted the setting of standards for noise levels that can be emitted
by the transportation source, the City is restricted to regulating the noise generated by the
transportation system through nuisance abatement ordinances and land use planning.
4.2 State Regulations
Established in 1973, the California Department of Health Services Office of Noise Control (ONC) was
instrumental in developing regularity tools to control and abate noise for use by local agencies. One
significant model is the “Land Use Compatibility for Community Noise Environments Matrix.” The matrix
allows the local jurisdiction to clearly delineate the compatibility of sensitive uses with various
incremental levels of noise.
The State of California has established noise insulation standards as outlined in Title 24 and the Uniform
Building Code (UBC) which in some cases requires acoustical analyses to outline exterior noise levels and
to ensure interior noise levels do not exceed the interior threshold. The State mandates that the
legislative body of each county and city adopt a noise element as part of its comprehensive general plan.
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The local noise element must recognize the land use compatibility guidelines published by the State
Department of Health Services. The guidelines rank noise land use compatibility in terms of normally
acceptable, conditionally acceptable, normally unacceptable, and clearly unacceptable as illustrated in
Exhibit D, which is the City’s version of the guidelines found in the City’s General Plan Noise Element.
Exhibit D: Land Use Compatibility Guidelines
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4.3 City of Lake Elsinore Noise Regulations
The project falls within the sphere of influence of the City of Lake Elsinore. The City outlines their noise
regulations and standards within the Noise Element from the General Plan and the Noise Ordinance from
the Municipal Code.
City of Lake Elsinore Municipal Code
The City of Lake Elsinore outlines their noise regulations and standards within the Noise Element from
the General Plan and the Municipal Code. For purposes of this analysis, the City’s Municipal Code zoning
performance standards (17.176) are used to evaluate the stationary noise impacts from the proposed
project. The project impacts were compared to the City’s commercial and residential noise standards.
17.176 Noise Control
Lake Elsinore lays out daytime and nighttime noise limits for an individual operation for residential,
commercial, and industrial zones. These limits must not be exceeded for 30 minutes or more within an
hour. These limits plus 5 dB must not be exceeded for 15 minutes or more within an hour. These limits
plus 10 dB must not be exceeded for 5 minutes or more within an hour. These limits plus 15 dB must not
be exceeded for 1 minutes or more within an hour. These limits plus 20 dB must not be exceeded at any
time. If the ambient exceeds these levels, each category must be raised 5 dB.
Table 1: Lake Elsinore Exterior Noise Limits
Receiving Land Use Category Time Period Noise Level (dBA)
Single-Family Residential 10:00 p.m. – 7:00 a.m. 40
7:00 a.m. – 10:00 p.m. 50
Multiple Dwelling Residential 10:00 p.m. – 7:00 a.m. 45
7:00 a.m. – 10:00 p.m. 50
Public Space
Limited Commercial and Office 10:00 p.m. – 7:00 a.m. 55
7:00 a.m. – 10:00 p.m. 60
General Commercial 10:00 p.m. – 7:00 a.m. 60
7:00 a.m. – 10:00 p.m. 65
Light Industrial Anytime 70
Heavy Industrial Anytime 75
Construction Noise Regulations
Construction must not occur between the hours of 7 PM and 7 AM or on weekends or holidays. Mobile
equipment operating short-time (10 days or less) and intermittently has a maximum noise level
restriction of 75 dBA at single-family residential areas. Stationary equipment with long-term operation
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and repetitive use has a maximum noise level of 60 dBA at single-family residential areas. At commercial
properties, mobile equipment must be 85 dBA or less and stationary equipment must be 75 dBA or less.
Construction vibration must be imperceptible beyond the property line.
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5.0 Study Method and Procedure
The following section describes the noise modeling procedures and assumptions used for this
assessment.
5.1 Noise Measurement Procedure and Criteria
Noise measurements are taken to determine the existing noise levels. A noise receiver or receptor is any
location in the noise analysis in which noise might produce an impact. The following criteria are used to
select measurement locations and receptors:
Locations expected to receive the highest noise impacts
Locations that are acoustically representative and equivalent of the area of concern
Human land usage
Sites clear of major obstruction and contamination
MD conducted the sound level measurements in accordance with Caltrans technical noise specifications
and the City’s noise ordinance. All measurements equipment meets American National Standards Institute
(ANSI) specifications for sound level meters (S1.4-1983 identified in Chapter 19.68.020.AA). The following
gives a brief description of the Caltrans Technical Noise Supplement procedures for sound level
measurements:
Microphones for sound level meters were placed 5-feet above the ground for all measurements
Sound level meters were calibrated (Larson Davis CAL 200) before and after each measurement
Following the calibration of equipment, a windscreen was placed over the microphone
Frequency weighting was set on “A” and slow response
Results of the long-term noise measurements were recorded on field data sheets
During any short-term noise measurements, any noise contaminations such as barking dogs, local
traffic, lawnmowers, or aircraft fly-overs were noted
Temperature and sky conditions were observed and documented
5.2 Noise Measurement Locations
Noise monitoring locations were selected based on the distance of the project’s stationary noise sources to
the nearest sensitive on-site receptors. One (1) short-term and one (1) long-term noise measurement were
conducted on the project site and represent ambient levels at the site. Appendix A includes photos, field
sheet, and measured noise data. Exhibit E illustrates the location of the measurements.
5.3 Stationary Noise Modeling
SoundPLAN (SP) acoustical modeling software was utilized to model future worst-case stationary noise
impacts to the adjacent land uses. SP is capable of evaluating multiple stationary noise source impacts at
various receiver locations. SP’s software utilizes algorithms (based on the inverse square law and reference
equipment noise level data) to calculate noise level projections. The software allows the user to input
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City of Lake Elsinore, CA Study Method and Procedure
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specific noise sources, spectral content, sound barriers, building placement, topography, and sensitive
receptor locations.
The future worst-case noise level projections were modeled using referenced sound level data for the
various stationary on-site sources (parking spaces and loading docks). The model assumes that the
building facility has eight (8) reverse alarms going off at the same time, all parapets are taller than the
rooftop HVAC units, and that there are approximately 180 parking spaces.
Reverse alarms were modeled as a point source with a reference noise level of 68.5 dBA at 6 feet. Parking
lots were modeled with the parking lot tool at one movement per hour.
The SP model assumes that all noise sources are operating simultaneously (worst-case scenario) when
in actuality the noise will be intermittent and lower in noise level.
Finally, the model is able to evaluate the noise attenuating effects of any existing or proposed property
line walls. Input and output calculations are provided in Appendix C.
Table 2: Reference Sound Level Measurements for SoundPLAN Model
Source Source Type Reference Level
(dBA) Descriptor
Reverse Alarm Point Source 68.5 6 ft
Parking Area (SP Parking
Tool) - 1 car per hr
5.4 FHWA Roadway Construction Noise Model
The construction noise analysis utilizes the Federal Highway Administration (FHWA) Roadway Construction
Noise Model (RNCM), together with several key construction parameters. Key inputs include distance to
the sensitive receiver, equipment usage, % usage factor, and baseline parameters for the project site.
The project was analyzed based on the different construction phases. Construction noise is expected to be
loudest during the grading, concrete, and building phases of construction. The construction noise
calculation output worksheet is located in Appendix E.
16
X = Measurement
location
= boundary
Exhibit E
Measurement Locations
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SITE
S
L
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City of Lake Elsinore, CA Existing Noise Environment
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6.0 Existing Noise Environment
One (1) 10-minute ambient noise measurement and one (1) hour and a half measurement were
conducted at the project on 12/3/21. These noise monitoring locations are illustrated in Exhibit E. The
measurement measured the Leq, Lmin, Lmax and other statistical data (e.g. L2, L8) and is presented in Table
1. The noise measurement was taken to determine the existing baseline noise conditions.
6.1 Short-Term Noise Measurement Results
The results of the Short-term noise data taken are presented in Table 3.
Table 3: Short-Term Nosie Measurement Data (dBA)1
Date Start Time Leq Lmax Lmin L(2) L(8) L(25) L(50) L(90)
12/3/2021 3:48 PM 52.5 64.9 44.8 59.9 56 52.5 50.9 46.5
Notes:
1. Short-term noise monitoring ST1 is illustrated in Exhibit E.
Noise data indicates the ambient noise level was 52.5 dBA Leq at the ST1. Additional field notes and
photographs are provided in Appendix A. The L50 limit of 50 dBA is exceeded. The project must therefore
not exceed the ambient level.
6.2 Long-Term Noise Measurement Results
The results of the Long-term noise data taken are presented in Table 4.
Table 4: Long-Term Nosie Measurement Data (dBA)1
Date Start Time Leq Lmax Lmin L(2) L(8) L(25) L(50) L(90)
12/3/2021 1:26 PM 68.4 84.3 45.2 75.0 71.9 69.4 66.5 57.2
Notes:
1. Long-term noise monitoring LT1 is illustrated in Exhibit E.
Noise data indicates the ambient noise level was 68.4 at LT1. The L50 limit of 50 dBA, the L25 limit of 55
dBA, the L8 limit of 60 dBA, the L2 limit of 65 dBA, and the Lmax level of 70 dBA are exceeded.
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7.0 Future Noise Environment Impacts and Mitigation
This assessment analyzes future noise impacts to and from the project compares the results to the City’s
Noise Standards. The analysis details the estimated exterior noise levels associated with traffic from
adjacent roadways and from on-site stationary noise sources.
7.1 Future Exterior Noise
The following outlines the exterior noise levels associated with the proposed project.
7.1.1 Noise Impacts to Off-Site Receptors Due to Stationary Sources
Due to the location of the proposed loading dock facilities, receptors that may be affected by project
operational noise include the existing residences to the southeast. The worst-case stationary noise was
modeled using SoundPLAN acoustical modeling software. The model utilizes SoundPLAN’s sound level
data for the loading docks and parking specified within Section 5.4 of this report. Loading activity
constitutes the project’s maximum operational noise levels.
A total of four (4) receptor locations were modeled to evaluate the proposed project’s operational noise
impact to adjacent existing or future noise sensitive land uses. A receptor is denoted by a yellow dot in
Exhibit F.
Project Operational Noise Levels
Exhibit F shows the “project only” operational noise levels at the property lines and/or sensitive receptor
areas and illustrates how the noise will propagate at the site. Worst-case operational noise levels are
anticipated to range between 37 to 45 dBA Leq at the receptors R1 – R4. The noise projections are below
the City’s noise limits as given in Section 17.176.060 of the Municipal Code.
Project Plus Ambient Operational Noise Levels
Table 5 demonstrates the project plus ambient noise levels. Project plus ambient noise level projections
are anticipated to range between 53 to 68 dBA Leq at the receptors R1 – R4.
<Table 5, next page>
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA Future Noise Environment Impacts and Mitigation
19
Table 5: Worst-case Predicted Operational Noise Levels (dBA)
Receptor1
Existing
Ambient Noise
Level
(dBA, Leq)2
Project
Noise Level
(dBA, Leq)3
Total Combined
Noise Level
(dBA, Leq)
Exceeds
Ordinance?
Change in Noise
Level as Result of
Project
R1 53 41 53 NO 0
R2 53 45 53 NO 0
R3 68 38 68 NO 0
R4 68 37 68 NO 0
Notes:
1. Receptor locations in Exhibit F. R1 to R3 are industrial.
2. The measured ambient Leq .
3. Residential uses are acceptable up to 50 dBA Leq during the day.
In addition, Table 5 provides the anticipated change in noise level as a result of the proposed project
during daytime operable conditions. The levels are not anticipated to increase as a result of the project.
The impact is therefore less than significant.
7.1.2 Noise Impacts to On/Off-Site Receptors Due to Project Generated Traffic
The project would generate 208 daily passenger car equivalent trips of which 21 would occur in the AM
peak hour and 22 would occur in the PM peak hour. Per the memo provided by TJW Engineering, Inc.,
1/27/2025 (Rome Hill Commercial Trip Generation Analysis and VMT Screening), see Appendix B. This
equates to approximately one passenger car equivalent trip every three minutes in the pm peak hour
and would not result in a substantial increase in traffic noise.
Traffic along the subject roadways would need to double in average daily traffic volumes to generate a
3 dBA increase in noise level. Since the project generates a nominal amount of traffic relative to the
existing ADTs, the project’s traffic noise level increase would be nominal and therefore less than
significant.
7.2 Noise Reduction Measures
The following noise reduction measures have been implemented into the plan:
All roof-top exterior equipment will be shielded from view with solid parapets that are taller than
the equipment constructed with a surface weight of at least 4.2 lb/ft2.
A 6’ wall with a surface weight of at least 4.2 lb/ft2 will surround the site.
Future Noise Environment Impacts and Mitigation
20
Exhibit F
Operational Noise Levels
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA Construction Noise Impact
21
8.0 Construction Noise Impact
The degree of construction noise may vary for different areas of the project site and also vary depending
on the construction activities. Noise levels associated with the construction will vary with the different
phases of construction.
8.1 Construction Noise
The Environmental Protection Agency (EPA) has compiled data regarding the noise generated
characteristics of typical construction activities. The data is presented in Table 6.
Table 6: Typical Construction Equipment Noise Levels 1
Equipment Powered by Internal Combustion Engines
Type Noise Levels (dBA) at 50 Feet
Earth Moving
Compactors (Rollers) 73 - 76
Front Loaders 73 - 84
Backhoes 73 - 92
Tractors 75 - 95
Scrapers, Graders 78 - 92
Pavers 85 - 87
Trucks 81 - 94
Materials Handling
Concrete Mixers 72 - 87
Concrete Pumps 81 - 83
Cranes (Movable) 72 - 86
Cranes (Derrick) 85 - 87
Stationary
Pumps 68 - 71
Generators 71 - 83
Compressors 75 - 86
Impact Equipment
Type Noise Levels (dBA) at 50 Feet
Saws 71 - 82
Vibrators 68 - 82
Notes:
1 Referenced Noise Levels from the Environmental Protection Agency (EPA)
Construction is considered a short-term impact and would be considered significant if construction
activities are taken outside the allowable times as described in the City’s Municipal Code Section
7.34.060. Construction is anticipated to occur during the permissible hours according to the City’s
Municipal Code. Construction noise will have a temporary or periodic increase in the ambient noise level
above the existing within the project vicinity. Furthermore, noise reduction measures are provided to
further reduce construction noise.
Typical operating cycles for these types of construction equipment may involve one or two minutes of
full power operation followed by three to four minutes at lower power settings. The loudest piece of
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA Construction Noise Impact
22
mobile equipment (a bulldozer) is anticipated to be 85 dBA at 50 ft from the source. At 70 ft, which is
the distance from the nearest proposed building to 10 ft within the residential property line, the Lmax
level would be 82 dBA. An 8’ temporary barrier is required along the residential property line to bring
the level to 73 dBA, which is below the mobile equipment construction noise limit of 75 dBA.
The loudest piece of stationary equipment (a generator) is anticipated to be 82 dBA at 50 ft from the
source. At 225 feet with the 8’ temporary barrier, a generator is anticipated to be 60 dBA. In order to
meet the stationary noise limit of 60 dBA, stationary equipment must be staged as far away from the
existing residential properties as possible.
To meet the construction noise limits, construction will operate between the hours of 7 AM and 7 PM
on weekdays. Stationary equipment will be staged as far away from the existing residential properties
as possible, and there will be an 8-foot wall surrounding the existing residential property lines.
8.2 Construction Vibration
Construction activities can produce vibration that may be felt by adjacent land uses. The construction of
the proposed project would not require the use of equipment such as pile drivers, which are known to
generate substantial construction vibration levels. The primary vibration source during construction may
be from a bulldozer. A large bulldozer has a vibration impact of 0.089 inches per second peak particle
velocity (PPV) at 25 feet which is likely perceptible but below any risk to architectural damage.
The fundamental equation used to calculate vibration propagation through average soil conditions and
distance is as follows:
PPVequipment = PPVref (25/Drec)n
Where: PPVref = reference PPV at 25ft.
Drec = distance from equipment to receiver in ft.
n = 1.5 (the value related to the attenuation rate through ground)
The thresholds from the Caltrans Transportation and Construction Induced Vibration Guidance Manual
in Table 6 (below) provides general thresholds and guidelines as to the vibration damage potential from
vibratory impacts.
<Table 7, next page>
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA Construction Noise Impact
23
Table 7: Guideline Vibration Damage Potential Threshold Criteria
Structure and Condition
Maximum PPV (in/sec)
Transient Sources Continuous/Frequent
Intermittent Sources
Extremely fragile historic buildings, ruins, ancient monuments 0.12 0.08
Fragile buildings 0.2 0.1
Historic and some old buildings 0.5 0.25
Older residential structures 0.5 0.3
New residential structures 1.0 0.5
Modern industrial/commercial buildings 2.0 0.5
Source: Table 19, Transportation and Construction Vibration Guidance Manual, Caltrans, Sept. 2013.
Note: Transient sources create a single isolated vibration event, such as blasting or drop balls. Continuous/frequent intermittent sources include
impact pile drivers, pogo-stick compactors, crack-and-seat equipment, vibratory pile drivers, and vibratory compaction equipment.
Table 8 gives approximate vibration levels for particular construction activities. This data provides a
reasonable estimate for a wide range of soil conditions.
Table 8: Vibration Source Levels for Construction Equipment1
Equipment
Peak Particle Velocity Approximate Vibration Level
(inches/second) at 25 feet LV (dVB) at 25 feet
Pile driver (impact) 1.518 (upper range) 112
0.644 (typical) 104
Pile driver (sonic) 0.734 upper range 105
0.170 typical 93
Clam shovel drop (slurry wall) 0.202 94
Hydromill 0.008 in soil 66
(slurry wall) 0.017 in rock 75
Vibratory Roller 0.21 94
Hoe Ram 0.089 87
Large bulldozer 0.089 87
Caisson drill 0.089 87
Loaded trucks 0.076 86
Jackhammer 0.035 79
Small bulldozer 0.003 58
1 Source: Transit Noise and Vibration Impact Assessment, Federal Transit Administration, May 2006.
At a distance of 70 feet, a large bulldozer would yield a worst-case 0.019 PPV (in/sec) which below any
risk of damage and likely imperceptible. The impact is less than significant, and no mitigation is required.
Rome Hill Commercial Project
Noise Impact Study
City of Lake Elsinore, CA References
24
9.0 References
American National Standards Institute (ANSI)
Specifications for sound level meters (S1.4-1983 identified in Chapter 19.68.020.AA).
California, State of, Building Standards Commission
2019 California Uniform Building Code (UBC), Title 24.
2019 Green Code Section 5.507.4.3 (2019)
California Department of Transportation (Caltrans)
2013 Technical Noise Supplement to the Traffic Noise Analysis Protocol.
2020 Transportation and Construction Vibration Guidance Manual. April.
2021 Caltrans Traffic Counts https://dot.ca.gov/programs/traffic-operations/census
California Office of Noise Control
2017 Guidelines for the Preparation and Content of Noise Elements of the General Plan. February.
Environmental Protection Agency (EPA)
1974 Information on Levels of Environmental Noise Requisite to Protect Public Health and Welfare
with an Adequate Margin of Safety. Prepared by the EPA, Office of Noise Abatement and Control.
Federal Transit Administration
2006 Transit Noise and Vibration Impact Assessment. Typical Construction Equipment Vibration
Emissions. FTAVA-90-1003-06.
Lake Elsinore, City of
2011 City of Lake Elsinore General Plan.
2021 City of Lake Elsinore Code of Ordinance
Office of Planning and Research, State of California
2017 Office of Planning and Research, General Plan Guidelines.
Appendix A:
Field Measurement Data
www.mdacoustics.com
AZ Office
4960 S. Gilbert Rd, Ste 1-461
Chandler, AZ 85249
CA Office
1197 E Los Angeles Ave, C-256
Simi Valley, CA 93065
Project:Rome Hill Noise Site Observations:
Site Address/Location:Grand Ave, Lake Elsinore, CA
Date:12/3/2021
Field Tech/Engineer:Jason Schuyler
General Location:
Sound Meter:NTi Audio SN:A2A-05967-E0 Site Topo:
Settings:A-weighted, slow, 1-sec, 10-minute interval Ground Type:
Meteorological Con.:low 70s
Site ID:ST1
Figure 2: ST-1 Photo
10-Minute Continuous Noise Measurement Datasheet
Sunny, temps in the low 70's little to no wind.
Noise Source(s) w/ Distance:
Flat
Hard Site
Figure 1: Monitoring Locations
1
Cherrywood Lane
10Min_Field Sheet NM2
www.mdacoustics.com
AZ Office
4960 S. Gilbert Rd, Ste 1-461
Chandler, AZ 85249
CA Office
1197 E Los Angeles Ave, C-256
Simi Valley, CA 93065
Project:Rome Hill Noise
Site Address/Location:Grand Ave, Lake Elsinore, CA
Site ID:ST1
Location Start Stop Leq Lmax Lmin L2 L8 L25 L50 L90
1 3:48 PM 3:58 PM 52.5 64.9 44.8 59.9 56 52.5 50.9 46.5
10-Minute Continuous Noise Measurement Datasheet - Cont.
Table 1: Morning - Baseline Noise Measurement Summary
10Min_Field Sheet NM2
www.mdacoustics.com
AZ Office
4960 S. Gilbert Rd, Ste 1-461
Chandler, AZ 85249
CA Office
1197 E Los Angeles Ave, C-256
Simi Valley, CA 93065
Project:Rome Hill Noise
Site Address/Location:Grand Ave, Lake Elsinore, CA
Site ID:ST-1
10-Minute Continuous Noise Measurement Datasheet - Cont.
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
7:29:33 AM7:29:48 AM7:30:03 AM7:30:18 AM7:30:33 AM7:30:48 AM7:31:03 AM7:31:18 AM7:31:33 AM7:31:48 AM7:32:03 AM7:32:18 AM7:32:33 AM7:32:48 AM7:33:03 AM7:33:18 AM7:33:33 AM7:33:48 AM7:34:03 AM7:34:18 AM7:34:33 AM7:34:48 AM7:35:03 AM7:35:18 AM7:35:33 AM7:35:48 AM7:36:03 AM7:36:18 AM7:36:33 AM7:36:48 AM7:37:03 AM7:37:18 AM7:37:33 AM7:37:48 AM7:38:03 AM7:38:18 AM7:38:33 AM7:38:48 AM7:39:03 AM7:39:18 AMdBATime
ST-1: Ambient Noise Level (1-sec)ST-1
dBA, Leq
10Min_Field Sheet NM2
www.mdacoustics.com
AZ Office
4960 S. Gilbert Rd, Ste 1-461
Chandler, AZ 85249
CA Office
1197 E Los Angeles Ave, C-256
Simi Valley, CA 93065
Project:Rome Hill Noise Site Observations:
Site Address/Location:Grand Ave, Lake Elsinore, CA
Date:12/3/2021
Field Tech/Engineer:Jason Schuyler
General Location:
Sound Meter:Piccolo II SN:Site Topo:
Settings:A-weighted, slow, 1-sec, 1-hour interval, 24-hour duration Ground Type:
Meteorological Con.:low 70s
Site ID:LT1
1-Hour Noise Measurement Datasheet
C/L of 50th Ave. is 28ft from meter NM3
Sunny, temps in the low 70's little to no wind.
Noise Source(s) w/ Distance:
Flat
Hard site
Figure 1: Monitoring Locations
Figure 2: LT1 Photo
1
1Hr_Field Sheet NM3
www.mdacoustics.com
AZ Office
4960 S. Gilbert Rd, Ste 1-461
Chandler, AZ 85249
CA Office
1197 E Los Angeles Ave, C-256
Simi Valley, CA 93065
Project:Rome Hill Noise
Site Address/Location:Grand Ave, Lake Elsinore, CA
Site ID:LT1
Location Start Stop Leq Lmax Lmin L2 L8 L25 L50 L90
1 1:26 PM 3:01 PM 68.4 84.3 45.2 75.0 71.9 69.4 66.5 57.2
1-Hour Noise Measurement Datasheet - Cont.
0
10
20
30
40
50
60
70
80
90
1:26:40 PM1:27:40 PM1:28:40 PM1:29:40 PM1:30:40 PM1:31:40 PM1:32:40 PM1:33:40 PM1:34:40 PM1:35:40 PM1:36:40 PM1:37:40 PM1:38:40 PM1:39:40 PM1:40:40 PM1:41:40 PM1:42:40 PM1:43:40 PM1:44:40 PM1:45:40 PM1:46:40 PM1:47:40 PM1:48:40 PM1:49:40 PM1:50:40 PM1:51:40 PM1:52:40 PM1:53:40 PM1:54:40 PM1:55:40 PM1:56:40 PM1:57:40 PM1:58:40 PM1:59:40 PM2:00:40 PM2:01:40 PM2:02:40 PM2:03:40 PM2:04:40 PM2:05:40 PM2:06:40 PM2:07:40 PM2:08:40 PM2:09:40 PM2:10:40 PM2:11:40 PM2:12:40 PM2:13:40 PM2:14:40 PM2:15:40 PM2:16:40 PM2:17:40 PM2:18:40 PM2:19:40 PM2:20:40 PM2:21:40 PM2:22:40 PM2:23:40 PM2:24:40 PM2:25:40 PM2:26:40 PM2:27:40 PM2:28:40 PM2:29:40 PM2:30:40 PM2:31:40 PM2:32:40 PM2:33:40 PM2:34:40 PM2:35:40 PM2:36:40 PM2:37:40 PM2:38:40 PM2:39:40 PM2:40:40 PM2:41:40 PM2:42:40 PM2:43:40 PM2:44:40 PM2:45:40 PM2:46:40 PM2:47:40 PM2:48:40 PM2:49:40 PM2:50:40 PM2:51:40 PM2:52:40 PM2:53:40 PM2:54:40 PM2:55:40 PM2:56:40 PM2:57:40 PM2:58:40 PM2:59:40 PM3:00:40 PMdBATime
Car Wash Noise Level (1-sec)ST-1
1Hr_Field Sheet NM3
Appendix B:
Referenced Traffic Data
6 Venture, Suite 225 | Irvine, California 92618 | t: (949) 878-3509
www.tjwengineering.com
January 27, 2025
BUILDER’S MAX INC.
C/O Guy Selleck
1207 N East Street
Anaheim, CA 92805
SUBJECT: Rome Hill Commercial Trip Generation Analysis and VMT Screening, City of Lake
Elsinore
Dear Mr. Selleck,
TJW Engineering, Inc. (TJW) is pleased to submit this Trip Generation Analysis and VMT Screening for the
proposed project located along Grand Avenue at Vail Street in the City of Lake Elsinore. The proposed
project includes 2 buildings of warehousing with a total of 121,490 square feet. A site plan is attached for
reference. The purpose of this memorandum is to summarize the project Trip Generation Analysis and
VMT Screening.
Proposed Project
The proposed site is located along Grand Avenue at Vail Street in the City of Lake Elsinore. The project will
construct 2 buildings of warehousing with a total of 121,490 square feet. Site access will be provided along
via an access road off Grand Avenue.
Trip Generation Analysis
Projected trip generation for the proposed project was developed based on the City of Lake Elsinore
Traffic Impact Analysis Preparation Guide (June 2020). The guidelines state land uses that generate less
than 100 peak hour trips will not require a Traffic Impact Analysis (TIA) that includes LOS analysis.
The trip generation for the proposed project was determined using the Institute of Transportation
Engineers Trip Generation Manual (11th Edition). Based on the proposed project’s intended use the
projected trip generation was determined using the Warehousing Land Use Code 150. The proposed
project is projected to generate 21 total AM peak hour trips, 22 total PM peak hour trips, and 208 total
daily trips.
Mr. Selleck
Rome Hill Commercial Trip Gen and VMT Screening
January 27, 2025
Page 2
TJW Engineering, Inc.
GBC21003 Rome Hill Commercial Trip Gen and VMT 01272025
Table 1 – Trip Generation
Proposed Land
Use Qty Unit
Daily Trips
(ADTs) AM Peak Hour PM Peak Hour
Rate Trips Rate In:Out
Split
Trips Rate In:Out
Split
Trips
In Out Total In Out Total
Warehousing
(150) 121.49 TSF 1.71 208 0.17 77:23 16 5 21 0.18 28:72 6 16 22
Total 208 16 5 21 6 16 22
Notes: ITE Trip Generation (11th Edition, 2021); TSF=Thousand Square Feet
Vehicle Miles Traveled (VMT) Screening
Senate Bill (SB) 743 was adopted in 2013 requiring the Governor’s Office of Planning and Research (OPR)
to identify new metrics for identifying and mitigating transportation impacts within the California
Environmental Quality Act (CEQA). For land use projects, OPR has identified Vehicle Miles Traveled (VMT)
as the new metric for transportation analysis under CEQA. The regulatory changes to the CEQA
guidelines that implement SB 743 were approved on December 28th, 2018, with an implementation date
of July 1st, 2020, as the new metric.
The City of Lake Elsinore updated their Transportation Impact Analysis Guidelines for Vehicle Miles
Traveled and Level of Service Assessment in June 2020. The document outlines guidelines for CEQA
analysis including screening criteria and requirements for VMT assessment of land use projects. The VMT
guidelines provide several screening criteria for projects including Transit Priority Area (TPA) Screening,
Low VMT Area Screening, and Project Type Screening.
The City’s Guidelines indicate residential and office projects located within a low VMT-generating area
may be presumed to have a less than significant impact. In addition, other employment-related land use
projects may qualify for the use of screening if the project can reasonably be expected to generate VMT
per service population that is similar to the existing land uses in the low VMT area. For this screening,
the WRCOG screening tool was used to determine low VMT-generating areas. The proposed project is
located within a low VMT-generating area (see attached). In addition, the proposed project can be
reasonably expected to generate VMT per service population similar to the existing land uses within the
low VMT area such as the manufacturing/warehousing/industrial buildings along Grand Avenue and the
surrounding area. As such, the proposed project can be presumed to have a less than significant impact.
Summary
This memorandum provides an overview of the trip generation analysis and VMT screening for the
proposed project. Based on the City of Lake Elsinore Traffic Impact Analysis Guidelines (June 2020), the
proposed project generates less than 100 peak hour trips and does not require a TIA that includes LOS
analysis. In addition, the City guidelines outline employment related land use projects within a low VMT-
generating area may be presumed to have a less than significant impact on VMT and can be screened
Mr. Selleck
Rome Hill Commercial Trip Gen and VMT Screening
January 27, 2025
Page 3
TJW Engineering, Inc.
GBC21003 Rome Hill Commercial Trip Gen and VMT 01272025
from VMT analysis. Consistent with the City guidelines, the proposed project does not require additional
traffic or VMT analysis.
Please contact us at (949) 878-3509 if you have any questions regarding this analysis.
Sincerely,
Thomas Wheat, PE, TE David Chew, PTP
President Transportation Planner
Registered Civil Engineer #69467
Registered Traffic Engineer #2565
Appendix C:
SoundPLAN Input and Output
RomeHill Noise
Contribution spectra - 001 - RomeHill: Outdoor SP
23
Source Time
slice
Sum
dB(A)
25Hz
dB(A)
31.5Hz
dB(A)
40Hz
dB(A)
50Hz
dB(A)
63Hz
dB(A)
80Hz
dB(A)
100Hz
dB(A)
125Hz
dB(A)
160Hz
dB(A)
200Hz
dB(A)
250Hz
dB(A)
315Hz
dB(A)
400Hz
dB(A)
500Hz
dB(A)
630Hz
dB(A)
800Hz
dB(A)
1kHz
dB(A)
1.25kHz
dB(A)
1.6kHz
dB(A)
2kHz
dB(A)
2.5kHz
dB(A)
3.15kHz
dB(A)
4kHz
dB(A)
5kHz
dB(A)
6.3kHz
dB(A)
8kHz
dB(A)
10kHz
dB(A)
12.5kHz
dB(A)
16kHz
dB(A)
Receiver -578,544 Fl G LrD,lim dB(A) LrD 40.9 dB(A)
Auto
pakring LrD 15.4 5.3 11.5 -1.7 3.7 8.0 8.2 0.9 -21.5 -85.2
Auto
pakring LrD 39.0 26.6 34.9 24.9 29.6 30.9 31.4 26.7 13.7 -16.1
Truck1 LrD 21.4 -4.4 -2.8 -5.8 7.5 13.3 11.2 2.9 -0.7 -2.7 -3.5 -3.2 0.5 7.5 -1.5 -2.2 0.5 0.1 -1.5 5.1 14.2 17.1 -1.8 -6.8 -13.9 -22.8 -33.6 -50.5 -68.0 -89.9
Truck2 LrD 15.7 -2.9 -1.9 -7.7 4.8 9.9 7.0 -0.7 -4.7 -7.0 -8.0 -7.9 -4.3 2.7 -6.3 -7.1 -4.7 -4.9 -5.5 -4.3 5.4 9.2 -8.2 -12.4 -16.3 -20.3 -24.7 -34.9 -45.6 -59.1
Truck5 LrD 33.9 0.9 2.7 0.4 14.0 20.2 18.6 11.3 8.4 7.3 1.4 2.6 7.2 17.5 9.5 9.7 16.8 17.4 16.8 17.9 27.6 31.2 13.4 8.7 3.9 -1.6 -8.1 -21.4 -36.6 -56.1
Truck6 LrD 15.2 -3.4 -2.4 -8.2 4.3 9.4 6.6 -1.1 -5.1 -7.4 -8.4 -8.3 -4.7 2.3 -6.7 -7.5 -5.1 -5.3 -5.9 -4.7 5.0 8.8 -8.7 -12.9 -16.8 -21.0 -25.5 -35.9 -46.9 -60.8
Truck7 LrD 23.0 -5.9 -5.1 -11.0 1.4 6.5 3.7 -4.2 -8.1 -10.3 -11.5 -11.4 -7.8 -0.7 -9.7 -10.5 -7.4 7.6 6.9 7.9 17.3 20.6 2.3 -3.3 -9.3 -16.5 -25.0 -39.4 -53.0 -69.1
Truck8 LrD 23.1 -5.7 -4.9 -10.8 1.6 6.7 3.9 -3.9 -7.9 -10.1 -11.3 -11.2 -7.6 -0.5 -9.6 -10.3 -7.1 7.6 7.0 7.9 17.4 20.7 2.4 -3.1 -9.1 -16.3 -24.6 -38.7 -51.9 -67.6
Truck9 LrD 30.5 -0.7 1.1 -2.4 11.2 17.4 15.8 8.4 5.5 4.3 1.4 2.5 7.2 17.1 9.0 9.2 13.5 14.0 13.4 14.4 23.9 27.5 9.6 4.7 -0.1 -5.8 -12.4 -25.9 -41.2 -60.9
Truck10 LrD 21.6 -4.1 -2.5 -5.5 7.7 13.6 11.5 3.2 -0.4 -2.4 -3.1 -2.9 0.8 7.8 -1.2 -1.9 0.7 0.3 -1.2 5.2 14.3 17.2 -1.7 -8.0 -15.0 -22.7 -33.3 -50.0 -67.3 -89.0
Remaining
contrib. of
src
"Truck1"
LrD
Remaining
contrib. of
src
"Truck2"
LrD
Remaining
contrib. of
src
"Truck5"
LrD
Remaining
contrib. of
src
"Truck6"
LrD
Remaining
contrib. of
src
"Truck7"
LrD
Remaining
contrib. of
src
"Truck8"
LrD
SoundPLAN 9.0
MD Acoustics LLC 4960 S. Gilbert Rd Chandler, AZ 85249 Phone: 602 774 1950 1
RomeHill Noise
Contribution spectra - 001 - RomeHill: Outdoor SP
23
Source Time
slice
Sum
dB(A)
25Hz
dB(A)
31.5Hz
dB(A)
40Hz
dB(A)
50Hz
dB(A)
63Hz
dB(A)
80Hz
dB(A)
100Hz
dB(A)
125Hz
dB(A)
160Hz
dB(A)
200Hz
dB(A)
250Hz
dB(A)
315Hz
dB(A)
400Hz
dB(A)
500Hz
dB(A)
630Hz
dB(A)
800Hz
dB(A)
1kHz
dB(A)
1.25kHz
dB(A)
1.6kHz
dB(A)
2kHz
dB(A)
2.5kHz
dB(A)
3.15kHz
dB(A)
4kHz
dB(A)
5kHz
dB(A)
6.3kHz
dB(A)
8kHz
dB(A)
10kHz
dB(A)
12.5kHz
dB(A)
16kHz
dB(A)
Remaining
contrib. of
src
"Truck9"
LrD
Remaining
contrib. of
src
"Truck10"
LrD
Remaining
contrib. of
src "Auto
pakring"
LrD
Remaining
contrib. of
src "Auto
pakring"
LrD
Receiver -656,611 Fl G LrD,lim dB(A) LrD 45.4 dB(A)
Auto
pakring LrD 10.4 2.4 7.4 -3.4 0.3 0.4 -0.2 -6.6 -30.3 -96.6
Auto
pakring LrD 43.3 29.3 38.7 30.3 34.7 35.4 35.9 31.8 20.9 -2.3
Truck1 LrD 28.9 -4.1 -2.3 -4.7 8.9 15.2 13.6 6.1 3.3 2.1 1.0 2.1 6.8 16.1 8.1 8.3 11.6 12.2 11.7 12.7 22.4 26.0 8.2 3.4 -1.5 -7.2 -13.9 -27.7 -43.3 -63.5
Truck2 LrD 30.7 3.6 4.8 -0.6 12.3 17.9 15.5 8.4 4.7 2.6 1.7 1.8 5.3 11.9 2.5 1.3 3.1 2.3 1.4 2.3 12.2 29.9 12.5 8.6 5.0 1.4 -2.2 -11.4 -20.5 -31.7
Truck5 LrD 18.4 -5.5 -3.8 -6.3 7.1 13.0 10.9 2.6 -0.9 -2.9 -3.4 -3.1 0.6 7.6 -1.4 -2.1 0.5 0.1 -1.4 -1.4 7.3 9.8 -9.1 -15.1 -21.2 -28.4 -36.8 -52.1 -69.2 -91.3
Truck6 LrD 39.9 7.7 9.5 4.7 18.3 24.6 22.9 16.8 13.9 12.7 12.8 14.0 18.6 26.5 18.5 18.7 22.0 22.6 22.1 22.9 32.7 37.6 20.3 16.5 13.2 9.9 6.9 -1.2 -8.9 -18.3
Truck7 LrD 23.6 -3.6 -2.4 -7.9 5.0 10.4 8.0 0.6 -3.3 -5.5 -6.3 -6.4 -3.2 3.3 -6.2 -7.5 -5.7 7.8 7.2 8.2 17.7 21.0 2.7 -2.7 -8.5 -15.1 -22.2 -34.0 -44.9 -58.3
Truck8 LrD 23.5 -3.9 -2.7 -8.3 4.4 9.7 7.0 -0.7 -4.9 -7.5 -8.5 -8.8 -5.5 1.1 -8.0 -8.9 -5.9 7.8 7.2 8.1 17.6 20.9 2.7 -2.8 -8.5 -15.3 -22.4 -34.4 -45.5 -59.0
Truck9 LrD 18.6 -5.3 -3.6 -6.2 7.2 13.2 11.1 2.9 -0.6 -2.6 -3.1 -2.8 0.9 7.8 -1.1 -1.8 0.7 0.3 -1.2 -1.1 7.5 10.1 -8.8 -14.8 -20.9 -28.0 -20.6 -36.0 -53.9 -77.0
Truck10 LrD 28.9 -4.2 0.1 -4.7 8.9 15.1 13.5 6.1 3.2 2.0 1.0 2.1 6.7 16.0 8.0 8.2 11.6 12.2 11.6 12.6 22.3 25.9 8.1 3.3 -1.6 -7.3 -14.0 -27.8 -43.6 -63.8
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src
"Truck1"
LrD
Remaining
contrib. of
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"Truck2"
LrD
SoundPLAN 9.0
MD Acoustics LLC 4960 S. Gilbert Rd Chandler, AZ 85249 Phone: 602 774 1950 2
RomeHill Noise
Contribution spectra - 001 - RomeHill: Outdoor SP
23
Source Time
slice
Sum
dB(A)
25Hz
dB(A)
31.5Hz
dB(A)
40Hz
dB(A)
50Hz
dB(A)
63Hz
dB(A)
80Hz
dB(A)
100Hz
dB(A)
125Hz
dB(A)
160Hz
dB(A)
200Hz
dB(A)
250Hz
dB(A)
315Hz
dB(A)
400Hz
dB(A)
500Hz
dB(A)
630Hz
dB(A)
800Hz
dB(A)
1kHz
dB(A)
1.25kHz
dB(A)
1.6kHz
dB(A)
2kHz
dB(A)
2.5kHz
dB(A)
3.15kHz
dB(A)
4kHz
dB(A)
5kHz
dB(A)
6.3kHz
dB(A)
8kHz
dB(A)
10kHz
dB(A)
12.5kHz
dB(A)
16kHz
dB(A)
Remaining
contrib. of
src
"Truck5"
LrD
Remaining
contrib. of
src
"Truck6"
LrD
Remaining
contrib. of
src
"Truck7"
LrD
Remaining
contrib. of
src
"Truck8"
LrD
Remaining
contrib. of
src
"Truck9"
LrD
Remaining
contrib. of
src
"Truck10"
LrD
Remaining
contrib. of
src "Auto
pakring"
LrD
Remaining
contrib. of
src "Auto
pakring"
LrD
Receiver -677,411 Fl G LrD,lim dB(A) LrD 37.8 dB(A)
Auto
pakring LrD 30.0 16.7 25.2 13.9 19.3 21.7 23.5 20.7 10.4 -14.3
Auto
pakring LrD 36.1 23.9 31.7 21.1 26.4 28.4 29.1 24.4 10.6 -21.1
Truck1 LrD 23.8 -5.5 -4.6 -10.6 1.9 6.9 4.1 -3.6 -7.6 -9.8 -10.8 -10.7 -7.0 0.0 -9.0 -9.8 -7.2 8.3 7.6 8.6 18.1 21.5 5.5 0.1 -5.8 -12.9 -21.4 -36.6 -51.0 -66.8
Truck2 LrD 6.5 -11.4 -10.7 -16.6 -4.2 0.9 -1.8 -11.1 -15.1 -17.3 -18.6 -18.5 -14.9 -8.0 -17.0 -17.8 -14.0 -13.6 -14.3 -12.7 -3.3 -0.1 -18.5 -24.2 -30.4 -37.9 -47.3 -64.9 -85.9
Truck5 LrD 19.9 0.3 1.4 -4.1 8.7 14.2 11.7 4.5 0.6 -1.6 -2.7 -2.8 0.5 7.0 -2.4 -3.6 -1.4 -0.9 -1.5 -0.6 9.3 13.3 -4.0 -7.8 -11.2 -14.5 -17.8 -26.4 -34.9 -45.6
SoundPLAN 9.0
MD Acoustics LLC 4960 S. Gilbert Rd Chandler, AZ 85249 Phone: 602 774 1950 3
RomeHill Noise
Contribution spectra - 001 - RomeHill: Outdoor SP
23
Source Time
slice
Sum
dB(A)
25Hz
dB(A)
31.5Hz
dB(A)
40Hz
dB(A)
50Hz
dB(A)
63Hz
dB(A)
80Hz
dB(A)
100Hz
dB(A)
125Hz
dB(A)
160Hz
dB(A)
200Hz
dB(A)
250Hz
dB(A)
315Hz
dB(A)
400Hz
dB(A)
500Hz
dB(A)
630Hz
dB(A)
800Hz
dB(A)
1kHz
dB(A)
1.25kHz
dB(A)
1.6kHz
dB(A)
2kHz
dB(A)
2.5kHz
dB(A)
3.15kHz
dB(A)
4kHz
dB(A)
5kHz
dB(A)
6.3kHz
dB(A)
8kHz
dB(A)
10kHz
dB(A)
12.5kHz
dB(A)
16kHz
dB(A)
Truck6 LrD 6.4 -11.5 -10.8 -16.8 -4.3 0.8 -1.9 -11.2 -15.2 -17.4 -18.7 -18.6 -15.0 -8.0 -17.1 -17.8 -14.1 -13.7 -14.4 -12.8 -3.4 -0.2 -18.6 -24.3 -30.5 -38.1 -47.5 -65.2 -86.3
Truck7 LrD 21.7 -3.5 -1.9 -7.0 8.6 14.5 12.6 4.9 1.5 -0.2 -0.7 -0.4 3.2 9.9 0.7 -0.3 2.0 1.4 3.7 4.2 13.3 16.2 -2.5 -8.5 -15.1 -12.2 -19.1 -32.9 -48.5 -68.6
Truck8 LrD 20.5 -3.2 -1.7 -6.8 8.8 14.7 12.8 5.1 1.9 0.2 -0.1 0.3 4.1 11.0 1.9 0.9 3.0 2.3 0.5 0.3 8.9 11.4 -7.4 -13.2 -18.9 -8.4 -15.0 -28.5 -43.7 -63.3
Truck9 LrD 19.3 -0.1 1.0 -4.5 8.3 13.6 11.0 3.6 -0.5 -3.0 -4.3 -4.6 -1.4 5.2 -4.0 -5.0 -1.9 -1.4 -1.9 -1.0 8.9 12.8 -4.4 -8.3 -11.7 -15.1 -18.5 -27.3 -36.0 -46.9
Truck10 LrD 23.9 -5.2 -4.4 -10.3 2.1 7.1 4.3 -3.4 -7.4 -9.7 -10.7 -10.6 -7.0 0.0 -9.0 -9.7 -6.8 8.3 7.7 8.7 18.2 21.6 3.4 -2.0 -5.7 -12.8 -21.2 -36.0 -49.8 -65.1
Remaining
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src
"Truck1"
LrD
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contrib. of
src
"Truck2"
LrD
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contrib. of
src
"Truck5"
LrD
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contrib. of
src
"Truck6"
LrD
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src
"Truck7"
LrD
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src
"Truck8"
LrD
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src
"Truck9"
LrD
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contrib. of
src
"Truck10"
LrD
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contrib. of
src "Auto
pakring"
LrD
SoundPLAN 9.0
MD Acoustics LLC 4960 S. Gilbert Rd Chandler, AZ 85249 Phone: 602 774 1950 4
RomeHill Noise
Contribution spectra - 001 - RomeHill: Outdoor SP
23
Source Time
slice
Sum
dB(A)
25Hz
dB(A)
31.5Hz
dB(A)
40Hz
dB(A)
50Hz
dB(A)
63Hz
dB(A)
80Hz
dB(A)
100Hz
dB(A)
125Hz
dB(A)
160Hz
dB(A)
200Hz
dB(A)
250Hz
dB(A)
315Hz
dB(A)
400Hz
dB(A)
500Hz
dB(A)
630Hz
dB(A)
800Hz
dB(A)
1kHz
dB(A)
1.25kHz
dB(A)
1.6kHz
dB(A)
2kHz
dB(A)
2.5kHz
dB(A)
3.15kHz
dB(A)
4kHz
dB(A)
5kHz
dB(A)
6.3kHz
dB(A)
8kHz
dB(A)
10kHz
dB(A)
12.5kHz
dB(A)
16kHz
dB(A)
Remaining
contrib. of
src "Auto
pakring"
LrD
Receiver -758,467 Fl G LrD,lim dB(A) LrD 37.2 dB(A)
Auto
pakring LrD 26.9 14.7 22.8 13.6 17.7 18.3 19.2 15.6 4.8 -19.9
Auto
pakring LrD 33.5 22.0 29.3 19.6 24.4 25.3 25.9 20.8 7.2 -23.8
Truck1 LrD 19.6 0.0 1.2 -4.4 8.4 13.7 11.2 3.8 -0.3 -2.8 -4.0 -4.3 -1.1 5.4 -3.9 -4.9 -1.6 -1.0 -1.4 -0.5 9.4 13.5 -3.7 -7.5 -10.8 -14.1 -17.3 -25.8 -34.2 -44.6
Truck2 LrD 6.6 -11.0 -10.2 -16.1 -3.7 1.2 -1.7 -11.0 -15.1 -17.5 -18.3 -18.2 -14.7 -7.8 -16.9 -17.6 -14.0 -13.5 -14.1 -13.2 -3.7 -0.4 -18.6 -24.1 -29.9 -37.1 -46.2 -63.2 -83.6
Truck5 LrD 14.6 -5.7 -5.0 -11.0 1.3 6.4 3.6 -4.2 -8.1 -10.3 -11.0 -10.9 -7.3 -0.3 -9.4 -10.0 -6.9 -1.3 -2.5 -2.1 7.0 10.2 -7.9 -12.7 -17.2 -21.8 -26.6 -37.4 -48.8 -63.2
Truck6 LrD 7.4 -10.6 -9.5 -15.2 -2.6 2.6 -0.3 -9.7 -14.0 -16.6 -17.6 -17.7 -14.3 -7.6 -16.7 -17.6 -14.0 -13.5 -14.1 -13.2 -3.7 -0.3 -18.6 -24.0 -29.9 -37.0 -46.1 -63.1 -83.4
Truck7 LrD 30.6 -2.8 -1.0 -3.4 10.1 16.4 14.8 7.7 4.9 3.7 2.8 3.9 8.6 17.8 9.7 10.0 13.2 13.8 13.3 14.3 24.1 27.8 10.1 5.6 1.1 -3.9 -9.7 -22.1 -35.9 -53.5
Truck8 LrD 30.5 -2.9 -1.1 -3.5 10.1 16.3 14.7 7.7 4.8 3.6 2.7 3.9 8.5 17.7 9.7 9.9 13.1 13.7 13.2 14.2 24.0 27.7 10.0 5.5 1.0 -2.0 -7.9 -20.4 -34.3 -52.1
Truck9 LrD 15.0 -5.3 -4.6 -10.6 1.8 6.8 4.0 -3.7 -7.7 -9.9 -10.6 -10.5 -6.9 0.0 -9.0 -9.7 -6.5 -0.9 -2.1 -1.7 7.4 10.6 -7.5 -12.3 -16.7 -17.4 -24.1 -35.9 -47.5 -61.6
Truck10 LrD 18.9 -0.5 0.6 -5.0 7.6 12.8 10.0 2.4 -1.9 -4.5 -5.7 -5.9 -2.5 4.2 -4.9 -5.1 -1.9 -1.3 -1.7 -0.8 9.2 13.2 -4.0 -7.8 -11.1 -14.5 -17.7 -26.3 -34.8 -45.4
Remaining
contrib. of
src
"Truck1"
LrD
Remaining
contrib. of
src
"Truck2"
LrD
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contrib. of
src
"Truck5"
LrD
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contrib. of
src
"Truck6"
LrD
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contrib. of
src
"Truck7"
LrD
SoundPLAN 9.0
MD Acoustics LLC 4960 S. Gilbert Rd Chandler, AZ 85249 Phone: 602 774 1950 5
RomeHill Noise
Contribution spectra - 001 - RomeHill: Outdoor SP
23
Source Time
slice
Sum
dB(A)
25Hz
dB(A)
31.5Hz
dB(A)
40Hz
dB(A)
50Hz
dB(A)
63Hz
dB(A)
80Hz
dB(A)
100Hz
dB(A)
125Hz
dB(A)
160Hz
dB(A)
200Hz
dB(A)
250Hz
dB(A)
315Hz
dB(A)
400Hz
dB(A)
500Hz
dB(A)
630Hz
dB(A)
800Hz
dB(A)
1kHz
dB(A)
1.25kHz
dB(A)
1.6kHz
dB(A)
2kHz
dB(A)
2.5kHz
dB(A)
3.15kHz
dB(A)
4kHz
dB(A)
5kHz
dB(A)
6.3kHz
dB(A)
8kHz
dB(A)
10kHz
dB(A)
12.5kHz
dB(A)
16kHz
dB(A)
Remaining
contrib. of
src
"Truck8"
LrD
Remaining
contrib. of
src
"Truck9"
LrD
Remaining
contrib. of
src
"Truck10"
LrD
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contrib. of
src "Auto
pakring"
LrD
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contrib. of
src "Auto
pakring"
LrD
SoundPLAN 9.0
MD Acoustics LLC 4960 S. Gilbert Rd Chandler, AZ 85249 Phone: 602 774 1950 6
RomeHill Noise
Contribution level - 001 - RomeHill: Outdoor SP
9
Source Source group Source type
Receiver -578,544 Fl G LrD,lim dB(A) LrD 40.9 dB(A)
Auto pakring Default parking lot noise PLot
Truck5 Default industrial noise Point
Truck9 Default industrial noise Point
Truck8 Default industrial noise Point
Truck7 Default industrial noise Point
Truck10 Default industrial noise Point
Truck1 Default industrial noise Point
Truck2 Default industrial noise Point
Auto pakring Default parking lot noise PLot
Truck6 Default industrial noise Point
Receiver -656,611 Fl G LrD,lim dB(A) LrD 45.4 dB(A)
Auto pakring Default parking lot noise PLot
Truck6 Default industrial noise Point
Truck2 Default industrial noise Point
Truck1 Default industrial noise Point
Truck10 Default industrial noise Point
Truck7 Default industrial noise Point
Truck8 Default industrial noise Point
Truck9 Default industrial noise Point
Truck5 Default industrial noise Point
Auto pakring Default parking lot noise PLot
Receiver -677,411 Fl G LrD,lim dB(A) LrD 37.8 dB(A)
Auto pakring Default parking lot noise PLot
Auto pakring Default parking lot noise PLot
Truck10 Default industrial noise Point
Truck1 Default industrial noise Point
Truck7 Default industrial noise Point
Truck8 Default industrial noise Point
Truck5 Default industrial noise Point
Truck9 Default industrial noise Point
Truck2 Default industrial noise Point
Truck6 Default industrial noise Point
Receiver -758,467 Fl G LrD,lim dB(A) LrD 37.2 dB(A)
Auto pakring Default parking lot noise PLot
Truck7 Default industrial noise Point
Truck8 Default industrial noise Point
Auto pakring Default parking lot noise PLot
Truck1 Default industrial noise Point
Truck10 Default industrial noise Point
Truck9 Default industrial noise Point
Truck5 Default industrial noise Point
Truck6 Default industrial noise Point
Truck2 Default industrial noise Point
SoundPLAN 9.0
MD Acoustics LLC 4960 S. Gilbert Rd Chandler, AZ 85249 Phone: 602 774 1950 1
RomeHill Noise
Octave spectra of the sources in dB(A) - 001 - RomeHill: Outdoor SP
3
Name Source type l or A
m,m²
Li
dB(A)
R'w
dB
L'w
dB(A)
Lw
dB(A)
KI
dB
KT
dB
LwMax
dB(A)
DO-Wall
dB
Time histogram Emission spectrum 63Hz
dB(A)
125Hz
dB(A)
250Hz
dB(A)
500Hz
dB(A)
1kHz
dB(A)
2kHz
dB(A)
4kHz
dB(A)
8kHz
dB(A)
16kHz
dB(A)
Auto pakring PLot 1006.34 51.1 81.2 0.0 0.0 0 100%/24h Typical spectrum 64.5 76.1 68.6 73.1 73.2 73.6 70.9 64.7 51.9
Auto pakring PLot 8872.31 55.1 94.6 0.0 0.0 0 100%/24h Typical spectrum 78.0 89.6 82.1 86.6 86.7 87.1 84.4 78.2 65.4
Truck1 Point 84.8 84.8 0.0 0.0 0 100%/24h Backup Beeper 70.0 64.4 66.4 73.4 72.1 83.7 67.8 60.5 47.2
Truck2 Point 84.8 84.8 0.0 0.0 0 100%/24h Backup Beeper 70.0 64.4 66.4 73.4 72.1 83.7 67.8 60.5 47.2
Truck5 Point 84.8 84.8 0.0 0.0 0 100%/24h Backup Beeper 70.0 64.4 66.4 73.4 72.1 83.7 67.8 60.5 47.2
Truck6 Point 84.8 84.8 0.0 0.0 0 100%/24h Backup Beeper 70.0 64.4 66.4 73.4 72.1 83.7 67.8 60.5 47.2
Truck7 Point 84.8 84.8 0.0 0.0 0 100%/24h Backup Beeper 70.0 64.4 66.4 73.4 72.1 83.7 67.8 60.5 47.2
Truck8 Point 84.8 84.8 0.0 0.0 0 100%/24h Backup Beeper 70.0 64.4 66.4 73.4 72.1 83.7 67.8 60.5 47.2
Truck9 Point 84.8 84.8 0.0 0.0 0 100%/24h Backup Beeper 70.0 64.4 66.4 73.4 72.1 83.7 67.8 60.5 47.2
Truck10 Point 84.8 84.8 0.0 0.0 0 100%/24h Backup Beeper 70.0 64.4 66.4 73.4 72.1 83.7 67.8 60.5 47.2
SoundPLAN 9.0
MD Acoustics LLC 4960 S. Gilbert Rd Chandler, AZ 85249 Phone: 602 774 1950 1
Appendix D:
Construction Modeling Output
A B C D E F G H I J
Construction Phase Equipment Item # of Items Item Lmax at 50 feet, dBA Dist. To Recptr. Item Usage Percent Usage Factor Dist. Correction dB Usage Adj. dB Recptr. Item Lmax, dBA Recptr. Item Leq, dBA
SITE PREP
1. Tractors/Loaders/Backhoes 4 80 70 40 0.40 -2.9 -4.0 77.1 73.1
2. Rubber Tired Dozers 3 85 70 40 0.40 -2.9 -4.0 82.1 78.1
Log Sum 88.4 84.4
GRADE
1. Excavators 1 85 70 40 0.40 -2.9 -4.0 82.1 78.1
2. Graders 1 85 70 40 0.40 -2.9 -4.0 82.1 78.1
3. Rubber Tired Dozers 1 85 70 40 0.40 -2.9 -4.0 82.1 78.1
5. Tractors/Loaders/Backhoes 3 80 70 40 0.40 -2.9 -4.0 77.1 73.1
Log Sum 88.0 84.1
BUILD
1. Cranes 1 85 70 16 0.16 -2.9 -8.0 82.1 74.1
2. Forklifts 3 85 70 40 0.40 -2.9 -4.0 82.1 78.1
3.Generator Sets 1 82 225 50 0.50 -13.1 -3.0 68.9 65.9
4. Tractor/Loaders/Backhoes 3 80 70 40 0.40 -2.9 -4.0 77.1 73.1
5. Welders 1 73 70 40 0.40 -2.9 -4.0 70.1 66.1
Log Sum 89.1 84.6
PAVE
1. Pavers 2 85 70 50 0.50 -2.9 -3.0 82.1 79.1
2. Paving Equipment 2 85 70 40 0.40 -2.9 -4.0 82.1 78.1
3. Rollers 2 85 70 20 0.20 -2.9 -7.0 82.1 75.1
Log Sum 89.9 85.5
ARCH COAT
1. Air Compressors 1 80 175 40 0.40 -10.9 -4.0 69.1 65.1
Log Sum 69.1 65.1
Receptor - Residences to the Southeast
Receptor - Residences to the Southeast
Receiver - North P/L
Enter variables here:
Source Height Hs(ft)8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
Receiver Height HR(ft)5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
Barrier Height HB(ft)8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Distance Source to barrier (ft) 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60
Distance Receiver to Barrier (ft) 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
Soft Ground = 1; Hard Ground = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Calculations
A 60 60.008333 60.03332408 60.074953 60.133186 60.207973 60.299254 60.406953 60.530984 60.671245 60.827625 61 61.188234 61.392182 61.611687 61.846584
B 10.440307 10.77033 11.18033989 11.661904 12.206556 12.806248 13.453624 14.142136 14.866069 15.620499 16.401219 17.204651 18.027756 18.867962 19.723083 20.59126
C 70.064256 70.064256 70.06425622 70.064256 70.064256 70.064256 70.064256 70.064256 70.064256 70.064256 70.064256 70.064256 70.064256 70.064256 70.064256 70.064256
P 0.3760503 0.7144061 1.149407744 1.6726008 2.2754849 2.9499651 3.6886216 4.4848326 5.3327963 6.2274884 7.1645885 8.1403943 9.1517343 10.195888 11.270514 12.373588
Ground type Heff (with barrier)0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
Ground type Heff (no barrier)0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
Heff (with barrier)14.5 15.5 16.5 17.5 18.5 19.5 20.5 21.5 22.5 23.5 24.5 25.5 26.5 27.5 28.5 29.5
Heff no barrier 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5
GB 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
GNB 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75
Abarrier 8.8190902 11.542163 13.59943633 15.227567 16.564239 17.691647 18.662116 19.510937 20.263024 20.936604 21.545387 22.099929 22.608508 23.077725 23.512912 23.918431
ILbarrier 8.8 11.5 13.6 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0 15.0
Barrier Height (ft)IL (dBA)
8 9
9 12
10 14
11 15
12 15
13 15
14 15
15 15
16 15
17 15
18 15
19 15
20 15
21 15
22 15
23 15
Project: Rome Hill Noise Date: 12/9/21
Source: Large Bulldozer
Scenario: Unmitigated
Location:
Address: Grand Ave, Lake Elsinore, CA
PPV = PPVref(25/D)^n (in/sec)
Equipment = INPUT SECTION IN BLUE
Type
PPVref = 0.089 Reference PPV (in/sec) at 25 ft.
D =70.00 Distance from Equipment to Receiver (ft)
n = 1.50 Vibration attenuation rate through the ground
PPV =0.019 IN/SEC OUTPUT IN RED
DATA OUT RESULTS
2 Large Bulldozer
Note: Based on reference equations from Vibration Guidance Manual, California Department of Transportation, 2006, pgs 38-43.
VIBRATION LEVEL IMPACT
Project Site
DATA INPUT