ENVIRONMENTAL NOISE IMPACT ASSESSMENT FOR THE …

HUGH WILLIAMSON ASSOCIATES INC. Ottawa, Ontario

Postal Address: PO Box 74056, RPO Beechwood, Ottawa, Ontario, K1M 2H9, Canada

Phone/Fax: (613) 747 0983, Email: [email protected], http://www.hwacoustics.ca

ENVIRONMENTAL NOISE IMPACT

ASSESSMENT

FOR THE PROPOSED

KANATA NORTH CATHOLIC

ELEMENTARY SCHOOL

CITY OF OTTAWA

Prepared for

Ottawa Catholic School Board

Prepared by

Hugh Williamson Associates Inc.

20th December, 2016

mailto:[email protected]

http://www.hwacoustics.ca/

Environmental noise impact assessment

for the proposed Kanata North Catholic

Elementary School, City of Ottawa


20th December, 2016

p. i

HUGH WILLIAMSON ASSOCIATES INC.


ASSESSMENT

FOR THE PROPOSED

KANATA NORTH CATHOLIC ELEMENTARY SCHOOL

CITY OF OTTAWA Table of Contents Section Page

Table of Contents i - iii 1.0 Introduction 1 - 2

2.0 Surface Transportation Noise Impacts 3 - 6

3.0 Stationary Source Noise Impacts 7 - 11

4.0 Conclusions and Recommendations 12 - 13

References 14





20th December, 2016

p. ii


Appendix 1 Zoning Plan and Land Use Designations

Figure A1.1 - Zoning Plan - City of Ottawa Zoning Bylaw 2008 – 250

Appendix 2 Surface Transportation Impacts

A2.1 Figures Figure A2.1.1: Site Plan showing Points of Reception Figure A2.1.2: Building Ground Floor Plan Figure A2.1.3: Detailed Plan at Kindergarten Room 141 (Worst Case)

A2.2 Tables Table A2.2.1: Modelled Points of Reception Table A2.2.2: Future Traffic Volumes and Posted Speed Limits Table A2.2.3: Traffic Noise Impacts for Building Component Requirements Table A2.2.4: Traffic Noise Impacts for Ventilation and Warning Clause

Requirements Table A2.2.5: Predicted Indoor Sound Levels

A2.3 City of Ottawa Noise Criteria and Warning Clauses Table A2.3.1 Sound Level Criteria for Outdoor Living Areas

Surface Transportation (Road and Rail) Table A2.3.2 Indoor Sound Level Criteria

Surface Transportation (Road and Rail) Table A2.3.3: Road and Rail Noise

Daytime (07:00 – 23:00) & Nighttime (23:00 – 07:00) Building Component Requirements

Table A2.3.4: Facade Material Requirement for Rail Noise Only Table A2.3.5: Warning Type Clauses (may be used individually or in

combination) Table A2.3.6: Combination of Road and Rail Noise

Day-time (07:00 – 23:00) & Night-time (23:00 – 07:00) Outdoor, Ventilation and Warning Clause Requirements

A2.4 Calculation Details and Software Outputs Appendix 3 Stationary Noise Source Impacts

A3.1 Plans and Figures Figure A3.1.1: Area Plan Showing Receptor Locations

Figure A3.1.2: Site Details & Equipment Locations

Figure A3.1.3: Scenario 1: Worst Case, All equipment in operation,

Day and Evening only (19:00 – 23:00);

Noise Contours: (Noise levels at 4.5 m)


Night operation (23:00 – 07:00);


A3.2 Acoustic Modeling Detail





20th December, 2016

p. iii


Table A3.2.1 Calculation Configuration

Table A3.2.2 Point of Reception Location Table

Table A3.2.3 Point Sources

Table A3.2.4 Noise Source Library

Table A3.2.5 Point of Reception Impacts by Source for Scenario 1


Table A3.2.7 Sample Calculations

A3.3 Stationary Noise Sources Criteria and Impact Assessment

Table A3.3.1: Exclusion Limit Values for One-Hour Equivalent Sound Level

(Leq, dBA) at Outdoor Points of Reception2


(Leq, dBA) at Plane of Window of Noise Sensitive Spaces

Table A3.3.3: Points of Reception

Table A3.3.4:Acoustic Assessment Summary Table - Impacts from Stationary

Noise Sources

Table A3.3.5: Noise Mitigation, Recommended Maximum Outdoor Sound

Power for critical equipment

Resumes, Dr. Hugh Williamson, Michael Wells





20th December, 2016

p. 1



ASSESSMENT

FOR THE PROPOSED

KANATA NORTH CATHOLIC ELEMENTARY SCHOOL

CITY OF OTTAWA

1.0 Introduction

Hugh Williamson Associates Inc. has been retained by the Ottawa Catholic School Board

(OCSB), to undertake a noise impact assessment in relation to satisfying the City of Ottawa

Environmental Noise Control Guidelines (ENCG) for the proposed Kanata North Catholic

Elementary School to be located at Goulbourn Forced Road and Terry Fox Drive, in the City

of Ottawa.

This report describes an assessment of noise impacts from vehicular traffic on Goulbourn

Forced Road and Terry Fox Drive at noise sensitive locations at the proposed school and

stationary noise impacts from the proposed mechanical equipment associated with the

development at noise sensitive points of reception in the surrounding urban environment.

This assessment has been carried out in accordance with City of Ottawa Environmental Noise

Control Guidelines, January, 2013 (ENCG)1 by Hugh Williamson Associates Inc.

The analysis was based on information received electronically from Bryden Martel Architects

Incorporated.

General description of the proposed development

The development is located at the proposed future intersection of Goulbourn Forced Road and

Terry Fox Drive in Kanata Lakes North, as shown in Figure A1.1, Appendix 1.

The proposed development consists of a one storey building rising to approximately 5 m

above grade and 7.6 m above grade at the location of the proposed gymnasium. The ground

floor level houses the entry vestibule, lobby, administration and teachers offices, staff lounge,

kitchen, indoor gymnasium, and, classrooms catering to childcare, preschool, kindergarten

then grades one to eight students. The development includes an outdoor recreation area

including sand pits and asphalt playground as well as parking for staff and visitors.

Mechanical equipment is to be located on the roof of the building. The external rooftop

equipment has been included in the following assessment of stationary noise impacts. Refer to

Figure A3.1.2.





20th December, 2016

p. 2


The site is currently zoned Residential Third Density (R3). As part of the application process

the OCSB is applying to the City of Ottawa to have the site re-zoned to permit the proposed

institutional use.

To the north of the site there is a small parcel of land currently zoned Residential Third

Density (R3). Further north, on the north side of Terry Fox Drive, the land is Zoned

Environmental Protection (EP).

To the east the land is zoned Major Institutional (I1). A vacant lot currently exists in this

direction. Further east, on land zoned I1, lies the Kanata Highlands Public School.

To the south and west of the site the land is zone Residential Third Density (R3).

Refer to zoning map in Appendix 1.

The site and surrounding land is relatively flat with no significant changes in elevation. The

land surrounding the proposed development consists of dense woodland. The assessment has

considered the future development of this land to residential use (i.e. zoned for potential noise

sensitive development).

Acoustic Environment: 1.1.

Sources of environmental noise include noise impacts from vehicular traffic on Goulbourn

Forced Road and Terry Fox Drive and the noise impacts from stationary noise sources

associated with the development including the proposed rooftop mechanical equipment. Refer

Figures A2.1.1, A2.1.2, A3.1.1 and A3.1.2.

The assessment of surface transportation noise impacts in this study have been based on future

traffic projections for Goulbourn Forced Road and Terry Fox Drive for the year 2031. These

projections are contained in Table A2.2.2, Appendix 3, and were based on information

provided in City of Ottawa, Environmental Noise Control Guidelines (ENCG).1

Detailed methodology and assessment criteria, for each of the assessed sources of

environmental noise are provided in Section 2.0 Surface Transportation Noise Impacts and

Section 3.0 Stationary Noise Source Impacts. Section 4.0 provides details on the overall

combined noise impacts with a summary of the recommendations that are required to satisfy

the applicable sound level criteria including recommendations for noise mitigation, air

conditioning, and, warning clauses.





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2.0 Surface Transportation Noise Impacts

Introduction 2.1.

This section describes an assessment of noise impacts from traffic on Goulbourn Forced Road

and Terry Fox Drive on the indoor noise sensitive areas of the proposed development. Refer

Figures A2.1.1 to A2.1.3, Appendix 2.1.

Methodology and Assessment Criteria 2.2.

The outdoor and indoor noise criteria are provided in Appendix A2.3. This criterion is to be

met by proposed noise sensitive developments using control measures such as, site design, set-

backs, noise barriers, acoustical requirements for building components and ventilation

requirements. In some circumstances, warning clauses related to noise are required on titles,

leases and sale agreements.

The noise assessment methodology is summarised as follows:

Noise generated by road traffic is predicted using STAMSON5, a traffic noise model

developed by the Ontario Ministry of Environment and Climate Change (MOECC).

STAMSON takes into account such factors as distance from the road, height, nature of the

intervening buildings and terrain, ground absorption, and noise barriers, if present.

Noise from future road traffic is predicted using STAMSON at critical points of reception

at the proposed development. Locations to be considered include Outdoor Living Areas

(OLAs) as well as ‘plane of window’ locations, where classrooms or offices are located in

schools. Noise levels are predicted for various periods such as Day (07:00 to 23:00) and

Night (23:00 to 07:00) periods. A-weighting is a frequency correction to sound pressure

levels which approximates the response of the human ear and is are predicted as A-

weighted equivalent sound levels, LEQ, (i.e. average used extensively for environmental

noise assessments. Results are expressed in dBA, A-weighted decibels.

Based on the predicted sound levels, the specifications for mitigation measures such as

noise barriers, requirement for building component design, ventilation requirements and

warning clauses are determined according to criteria established by the City of Ottawa

ENCG as described below.

The noise criteria for classrooms and office in school area are set out in Tables A2.3.2,

Appendix A2.3.

Building component requirements depend on the predicted outdoor noise levels and are set out

in Table A2.3.3, Appendix A2.3. Where building component requirements need to be

designed to achieve specific indoor sound levels, restrictions may apply such as the

construction and areas of walls, windows, and doors.





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p. 4


The ventilation requirements, outdoor noise control measures and warning clause

requirements are dependent on predicted outdoor noise levels and are set out in Tables A2.3.5

and A2.3.6, Appendix 2.3. Warning clauses, when required, are to be placed on title

documents, sale agreements, and lease agreements.

Points of Reception 2.3.

For assessment of indoor sound levels, points of reception POR 1T, POR 2T and POR 3T

were selected at locations on the building most exposed to noise from Goulbourn Forced Road

and Terry Fox Drive. Outdoor sound levels were calculated at these worst case locations on

the proposed ground floor. Plane of Window locations are used as windows represent the least

‘sound proof’ building component of the exterior partition.

The predicted sound levels at each point of reception are compared to relevant criteria to

determine the level of mitigation required to achieve the complying outdoor and indoor sound

levels as set out in Appendix 2.3.

The points of reception selected for detailed analysis are listed in Table A2.2.1 and shown in

Figures A2.1.1 to A2.1.3.

It is noted the proposed outdoor recreation area associated with the school is not considered to

be noise sensitive for the purpose of this assessment.

Noise Source Modelling and Data 2.4.

The following road traffic data was used for assessing the traffic noise impacts at each point of

reception. The data was taken from the City of Ottawa ENCG which provides ultimate future

traffic volume data for various roadways based on roadway class and number of lanes. The

traffic data used represents future traffic volumes and correspond to a ‘mature state of

development’, in the City’s Official Plan.6

Goulbourn Forced Road is assessed as a 2-Lane Major Collector (2-UMCU), with 12,000

AADT as set out in Table 1.7, City of Ottawa Environmental Noise Control Guidelines.1,

Posted speed limit of 50 km/hr.

Terry Fox Drive is assessed as a 4-Lane Urban Arterial Divided (4-UAD), with 35,000

AADT as set out in Table 1.7, City of Ottawa Environmental Noise Control Guidelines.1,

Posted speed limit of 60 km/hr. This takes into consideration it’s future expansion from its

current classifiction (2-UAU).

The proportions of traffic types and times recommended in the ENCG (Day / Night split 92 /

8, with medium trucks 7%, heavy trucks 5 %) were used to develop the traffic data for each

road segment as shown in Table A2.2.2, Appendix 2.2. The surrounding topography was

assumed to be a generally flat, reflective surface. Refer to Table A2.2.2: Future Traffic

Volumes and Posted Speed Limits, Appendix 2.





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p. 5


Noise Impact Assessment 2.5.

Based on the future traffic projections, sound levels were predicted at each of the worst-case

point of reception, POR 1T, POR 2T and POR 3T using the MOECC STAMSON noise

modelling software. The results of these predictions are contained in Tables A2.2.3 to A2.2.5.

Samples of the outputs of the STAMSON software are provided in Appendix 2.4.

The implications of the estimated future noise levels, in relation to the ENCG criteria as set

out in Appendix 2.3, are discussed below.

Building Components

As shown in Tables A2.2.3, the predicted noise levels at plane of windows locations for the

Kindergarten - Room 141, and the Offices - Room TBA and Room 109, are greater than

65 dBA during the daytime period 07:00 to 23:00, therefore building components (walls,

windows, etc.) must be designed to achieve complying indoor sound levels.

Note that these locations are the worst case, that is, the part of the building most exposed to

road traffic noise, hence, the building components designed for these locations are sufficient to

meet the indoor sound level criteria at all locations on the building.

Indoor sound levels in the Kindergarten – Room 141 have been estimated using standard

acoustical procedures, see IBANA-Calculation output in Appendix 2.4, which take into

account window areas, wall area, room size, room absorption, as well as, the sound

transmission characteristic of the external walls and windows.

External walls are proposed to be constructed with 90mm masonry veneer, 25mm air

space, 75mm rigid insulation, Air / Vapour barrier, 13mm exterior grade sheathing

with either 152mm steel studs w/ batt insulation and 16mm gypsum board or 140 mm

concrete block. Test data for a similar construction modelled as 13mm gypsum board,

140 mm studs on 406 mm centres with glass fibre cavity insulation, 11 mm OSB, 16

mm airspace, 89 mm brick has been used. Sound transmission characteristics of these

components have been estimated based on National Research Council test data.

Alternative construction is permissible providing it has a minimum STC rating of 53.

Windows have been modeled as Aluminium casement double glazed operable

windows (3 mm glass thickness, 13 mm air gap, 3 mm glass thickness) with sound

transmission characteristics based on national Research Council test data. Alternative

construction is permissible providing it has a minimum STC rating of 28.

The resulting estimates of indoor sound levels comply with the daytime sound level

criteria. As such, with the proposed wall and window construction as specified above,

indoor sound levels will meet the sound level criteria set out in Table A2.3.2. Alternative

construction is acceptable providing the minimum STC ratings recommended above are

achieved.





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Ventilation Requirements & Warning Clauses

The predicted plane of window noise levels shown in Table A2.2.4 indicate that there is a

requirement that school be fitted with central ducted air-conditioning. It is recommended that

the Warning Clause of Type D, as noted below, taken from the ENCG, be applied.

"This school has been supplied with a central air-conditioning system which will allow

windows and exterior doors to remain closed, thereby ensuring that the indoor sound levels

are within the City's and the Ministry of Environment's noise criteria."

This clause should be included in Agreements of Purchase and Sale or Lease Agreements, and

incorporated into the relevant Development Agreements which are registered on title of the

property.





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3.0 Stationary Noise Source Noise Impacts

Introduction 3.1.

Stationary noise impacts from operations of mechanical equipment have been predicted at

nearby noise sensitive points of reception in the surrounding environment with

recommendations for noise mitigations measures where necessary to meet the City of Ottawa

and MOECC requirements.

Refer to Figure A3.1.1 for area plan showing points of reception selected for analysis and

Figure A3.1.2 for detailed site plan showing source locations included in this assessment at the

proposed development.

The noise assessment methodology for impacts from stationary sources is

summarised below:

Identification of noise sensitive receptors in the vicinity of the school. Potential noise

sensitive receptors include residences, motels, places of worship, schools, hospitals and

land zoned for noise sensitive use.

Determination of the City of Ottawa1 and MOECC

2 sound level limits which will

apply at each of the noise sensitive receptors.

Identification of the sources of noise that will arise from equipment operations. In the

current study, the strengths of the various noise sources were obtained from

manufacturer’s data. For critical equipment a maximum outdoor sound power rating is

recommended.

Based on the strengths of the individual noise sources, noise levels due to operations

are predicted at nearby noise sensitive receptors using a prediction procedure which is

favoured by the City of Ottawa1 and MOECC

2. The City of Ottawa

1 and MOECC

2

methodology requires that compliance be assessed under predictable “worst case”

conditions for normal operations.

Assessment of compliance of the noise impacts from the proposed equipment

operations with City of Ottawa and MOECC sound level limits. Where appropriate,

mitigation measures are recommended such that compliance is achieved at all

receptors.





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Points of Reception 3.2.

The critical noise sensitive points of reception, which have been selected for detailed analysis,

are shown in Figure A3.1.1 and A3.1.2. These were selected as being the points of reception in

the surrounding environment most likely impacted by noise from the development.

Other noise sensitive points of reception are at greater distances and will be less affected by

noise from the operations of equipment. Table A3.3.3 lists the noise sensitive points of

reception selected for analysis.

3.2.1. Assessment Criteria & Performance Limits:

Sound level limits as specified in the City of Ottawa ENCG1 and MOECC guideline NPC-

3002, depend on the acoustical classification of the area as Class 1, 2, 3 or 4.

Class 1 area 'an area with an acoustical environment typical of a major population

centre, where the background sound level is dominated by the activities of people,

usually road traffic, often referred to as urban hum.’

Class 2 area 'an area with an acoustical environment that has qualities representative

of both Class 1 and Class 3 areas: sound levels characteristic of Class 1 during daytime

(07:00 to 19:00 or to 23:00 hours); and, low evening and night background sound level

defined by natural environment and infrequent human activity starting as early as

19:00 hours (19:00 or 23:00 to 07:00 hours).’

Class 3 area 'a rural area with an acoustical environment that is dominated by natural

sounds having little or no road traffic, such as: a small community; agricultural area; a

rural resort area such as a cottage or resort area; or, a wilderness area. '

Class 4 area ‘an area or specific site that would otherwise be defined as Class 1 or 2

and which: is an area intended for development with new noise sensitive land use(s)

that are not yet built; is in proximity to existing, lawfully established stationary

source(s); and, has formal confirmation from the land use planning authority with the

Class 4 area classification which is determined during the land use planning process.

Additionally, areas with existing noise sensitive land use(s) cannot be classified as

Class 4 areas.’

Due to the relatively low levels of road traffic on Goulbourn Forced Road and the proposed

sub-urban streets to the south and west of the site the area in which POR 1, POR 2, POR 3 and

POR 4 are located is classified as Class 2 Area (Urban).

For a Class 2 Area (Urban) the applicable outdoor sound level limits at noise sensitive

receptors, based on 1-hour equivalent sound levels, LEQ, are either the exclusion noise

limits given in Table A3.3.1 and Table A3.3.2, or higher limits if established by an

assessment of background noise.





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A background sound assessment was not carried out; hence, the exclusion level limits set

out in Table A3.3.1 and A3.3.2 apply at all receptors according to their location in a Class 2

Area (Urban).

Noise Source Summary 3.3.

Detailed design of the Terry Fox Catholic Elementary School has yet to be completed in

relation to the selection of HVAC mechanical equipment. However, the Terry Fox School as

proposed will be almost identical to the recently completed Avalon Catholic Elementary

School on Esprit Drive, Ottawa. Hence, HVAC noise sources for the Terry Fox Catholic

Elementary School are based on the sizes of the HVAC equipment in the Avalon School.

The following noise sources have been used to model noise generated by on-site operations. In

brackets are the shortened names of the noise sources as used in the acoustic model. The

characteristics of these sources, as used in acoustic modelling, are summarized in Table

A3.2.3 and Table A3.3.4.

Nine roof top HVAC units, RTU-1 to 9, are proposed for the Terry Fox School. The

cooling capacities of these RTU’s, based on data from Avalon School.

o RTU 1, 5 and 7 have been modelled on the AAON_RN_6_10_Ton unit with a

5 dB reduction in sound power (Source: AAON_RN_6_10_Ton)

o RTU 2, 3, 4, 6, 8 and 9 have been modelled on the AAON_RN_09_20_Ton

unit with a 6 dB reduction in sound power (Source: AAON_RN_09_20_Ton)

There will also number of exhaust fans of various sizes. Based on Avalon School, only

three of these fans will have capacities of greater than 1000 cubic feet per minute, cfm,

and only fans with these capacities are considered to be significant noise sources in this

study (Source: F-1, F-2, and F-3).

The strengths of all noise sources, i.e. the sound powers shown in Table A3.2.3 and used in

this analysis, are taken from manufacturers data and acoustic formula of equipment.

It is noted that there is additional equipment proposed at the development. Due to the

proposed size and internal, or shielded location, this equipment was determined to be

insignificant for the purpose of this study.

The locations of the significant noise sources included in this assessment can be found on

Figure A3.1.2.

Hours of Operation

Daytime and Evening Operations (07:00 – 23:00) - During the Daytime and Evening period,

all significant noise sources are assumed to be in operation. HVAC equipment has been

assessed operating at maximum capacity during this period.





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Night Operations (23:00 – 07:00) – During the nighttime period all significant noise sources

are assumed to be in operation. HVAC equipment has been assessed operating at 50%

capacity during this period i.e. in operation 30 minutes per hour. This is considered a

conservative assumption for the nighttime (23:00 and 07:00) period of operation.

Impact Assessment from Stationary Noise Sources 3.4.

Noise levels have been predicted at the critical receptors using “worst case” assumptions

under normal operations and using the ISO sound propagation methodology5, as implemented

in the sound prediction software Cadna-A, version 4.6.155. The ISO methodology, which is

favored by the City of Ottawa and the MOECC, provides a conservative (i.e. high) estimate of

the noise level at each receptor taking into account adverse wind and meteorological

conditions.

The estimation method includes the following.

Distance attenuation is based on spherical spreading.

Atmospheric attenuation.

Ground attenuations, as appropriate.

Barrier attenuation, as appropriate.

In order to consider case of worst noise impacts, the following operational scenarios have been

modeled. In general, the worst case impacts are those which occur when all equipment is in

operation. The following two worst case scenarios are presented in this report.

Scenario 1: Worst case, all equipment in operation – Day and Evening operation

(07:00 – 23:00). Refer to Figure A3.1.3 for predicted noise impacts.

Scenario 2: Worst case, all equipment in operation – Night operation, Mechanical

equipment operating at fifty percent capacity (23:00 – 07:00). Refer to

Figure A3.1.4 for predicted noise impacts.

Noise impacts at critical points of reception have been completed for daytime, evening and

nighttime periods. The analyzed scenarios are for worst case conditions and operations of

equipment.

In Table A3.3.4, estimated noise levels at the points of reception for the worst case scenario

are compared with the applicable sound level limits. The sound level limits applicable are the

lowest sound level limits that apply at each point of reception for the period of operation.

More detailed estimates, for all sources are contained in Appendix 3, with Tables A3.2.5 and

A3.2.6 providing a summary of predicted noise impacts at each receptor for the individual

sources.





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Mitigation Measures 3.5.

It was found that noise impacts from the proposed roof top RTU’s was critical at nearby noise

sensitive points of reception. Hence, maximum sound power levels for this equipment is

provided in Table A3.3.5. The maximum sound powers are based on noise data for equipment

with a reduction in sound power in order to achieve compliance. To achieve compliance, the

sound powers of the RTU’s must not exceed the levels given in Table A3.3.5.





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4.0 Conclusions and Recommendations

A noise impact assessment of surface transportation and stationary noise source impacts has

been conducted according to the City of Ottawa guidelines.

Noise generated from vehicular traffic on Goulbourn Forced Road and Terry Fox Drive as

well as mechanical equipment operations at the proposed school has been assessed at critical

locations.

Noise impacts have been estimated for worst case conditions according to City of Ottawa and

MOECC guidelines.

It has been found that noise levels at the proposed development will be in compliance with

the City of Ottawa and MOECC sound level limits providing the recommendations as

specified in this report are followed.

The recommendations are summarized as follows:

Surface Transportation Noise Impact Conclusions and 4.1.

Recommendations

4.1.1. Building Components:

Building components, including walls and windows, are to be constructed as

specified in this report to achieve complying indoor sound levels. Alternative

construction is acceptable providing the minimum STC ratings recommended are

achieved.

4.1.2. Ventilation Requirements & Warning Clauses

The predicted plane of window noise levels shown in Table A2.2.5 indicate that there

is a requirement that units be fitted with central ducted air-conditioning. It is

recommended that the Warning Clause Type D noted below, taken from the ENCG, be

applied to these units.

"This school has been supplied with a central air-conditioning system which will

allow windows and exterior doors to remain closed, thereby ensuring that the indoor

sound levels are within the City's and the Ministry of Environment's noise criteria."

This clause should be included in Agreements of Purchase and Sale or Lease Agreements, and

incorporated into the relevant Development Agreements which are registered on title of the

property.

Stationary Noise Source Impacts Conclusions and Recommendations 4.2.

It has been found that with the recommended noise mitigation measures as detailed in this

report, noise levels at nearby receptors due to operations of mechanical equipment at the





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school will be in compliance with the applicable City of Ottawa and MOECC sound level

limits.

Recommended mitigation measures include maximum outdoor sound power ratings for

mechanical equipment as noted in Table A3.3.5. Due to the preliminary stage of mechanical

equipment design at the development it is recommended that the final mechanical layout be

reviewed by a qualified acoustical consultant prior to construction to ensure compliance with

City of Ottawa noise criteria.

Michael Wells, B.Architecture (Hons), B.Sc.Arch. Registered Architect of NSW, ARN: 8111

Member, Canadian Acoustical Society

Hugh Williamson, Ph.D., P.Eng.

Member, Canadian Acoustical Society





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p. 14


References

1. City of Ottawa Environmental Noise Control Guidelines, January 2016.

2. Ministry of Environment Publication NPC-300, Environmental Noise Guideline

Stationary and Transportation Sources - Approval and Planning, August 2013.

3. Ministry of Environment, Sample Application Package, Basic Comprehensive

Certificate of Approval (Air and Noise), July 2009.

4. Ministry of Environment, Ontario Road Noise Analysis Method for Environment and

Transportation (ORNAMENT), 1989.

5. Ministry of Environment, STAMSON Software, Version 5.03, 1996. (Software version

of References 5 and 6.)

6. City of Ottawa “Official Plan - Annex 10”, 2011.





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Appendix 1

Zoning Plan and Land Use Designations

Contents:

Figure A1.1: Zoning Plan - City of Ottawa Zoning Bylaw 2008 – 250

Legend for Land Use Designations:

I1 - Minor Institutional Zone

R3 - Residential Third Density Zone

O1 - Parks and Open Space Zone

EP - Environmental Protection Zone





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Figure A1.1 - Zoning Plan - City of Ottawa Zoning Bylaw 2008 – 250

North

Proposed development

site

Terry Fox Drive

Goulbourn Forced Road (Approximate future

location)





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Appendix 2 Surface Transportation Impacts

Contents:

A2.1 Figures

Figure A2.1.1: Site Plan showing Points of Reception Figure A2.1.2: Building Ground Floor Plan Figure A2.1.3: Detailed Plan at Kindergarten Room 141 (Worst Case)

A2.2 Tables

Table A2.2.1: Modelled Points of Reception Table A2.2.2: Future Traffic Volumes and Posted Speed Limits Table A2.2.3: Traffic Noise Impacts for Building Component Requirements Table A2.2.4: Traffic Noise Impacts for Ventilation and Warning Clause

Requirements Table A2.2.5: Predicted Indoor Sound Levels

A2.3 City of Ottawa Noise Criteria and Warning Clauses

Table A2.3.1 Sound Level Criteria for Outdoor Living Areas Surface Transportation (Road and Rail)

Table A2.3.2 Indoor Sound Level Criteria Surface Transportation (Road and Rail)

Table A2.3.3: Road and Rail Noise Daytime (07:00 – 23:00) & Nighttime (23:00 – 07:00) Building Component Requirements




A2.4 Calculation Details and Software Outputs





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Appendix A2.1

Figures

Contents:

Figure A2.1.1: Site Plan showing Points of Reception Figure A2.1.2: Building Ground Floor Plan showing Points of Reception Figure A2.1.3: Detailed Plan at Kindergarten Room 141 (Worst Case)





20th December, 2016

p. 19


Figure A2.1.1: Site Plan showing Points of Reception (Source: Bryden Martel Architects Inc.)

North

140 m

135 m

130 m

Te

rry F

ox

Dri

ve

(A

ss

ess

ed

as

4-U

AD

) C

en

tre

lin

e s

ho

wn

da

sh

ed

)

POR 1T (Plane of Window)

POR 2T (Plane of Window)

Goulbourn Forced Road (Future location)

POR 3T (Third Floor Plane of

Window)

190 m

33

m

28

m

58

m





20th December, 2016

p. 20


Figure A2.1.2: Building Ground Floor Plan (Source: Bryden Martel Architects Inc.)

POR 2T Office - Room

TBA (Plane of Window)

POR 1T Kindergarten -

Room 141 (Plane of

Window)

POR 3T Principles

Office - Room 109 (Plane of Window)

North





20th December, 2016

p. 21


Figure A2.1.3: Detailed Plan at Kindergarten Room 141 – Worst Case (Source: Bryden Martel Architects Inc.)

Kindergarten Room 141 area: 124 m2

External wall area (facing Goulbourn Froced Road)

18.5 m2

Window area: (facing Goulbourn Forced Road)

7.1 m2

External wall area (facing Terry Fox Drive)

48 m2

External Wall

Internal wall

POR 1T Kindergarten - Room 141 (Plane of Window facing Goulbourn Forced Road)

POR 1T at Wall Kindergarten - Room 141

(Centre of wall facing Terry Fox Drive. Predicted

outdoor noise impacts at this location were used to

calculate the combined noise impact on the interior

side of the building)





20th December, 2016

p. 22


Appendix A2.2

Tables

Contents:

Table A2.2.1: Modelled Points of Reception Table A2.2.2: Future Traffic Volumes and Posted Speed Limits Table A2.2.3: Traffic Noise Impacts for Building Component Requirements Table A2.2.4: Traffic Noise Impacts for Ventilation and Warning Clause Requirements Table A2.2.5: Predicted Indoor Sound Levels





20th December, 2016

p. 23


Table A2.2.1: Modelled Points of Reception

Symbol

Location***

Goulbourn Force Road Terry Fox Drive Height*

(m) Description

Distance (m)

Angle of exposure

Distance (m)

Angle of exposure

POR 1T Kindergarten (Room 141)

33 180 deg 140 90 deg 2 Plane of window

POR 2T Office

(Room TBA) 58 90 deg 135 180 deg 2 Plane of window

POR 3T Principles Office

(Room 109) 28 180 deg 190 90 deg 2 Plane of window

*Height measured from street level at centre of plane of window location.

Table A2.2.2: Future Traffic Volumes and Posted Speed Limits*

Road Segment

Input Data Day Volumes, 7:00 - 23:00

Night Volumes, 23:00 - 7:00

Segment AADT Posted Split Split Medium Heavy Cars Medium Heavy Cars Medium Heavy

Type (24

hours) Speed Day Night Trucks Trucks Trucks Trucks Trucks Trucks

kph 7:00-23:00

23:00-7:00 % % no. no. no. no. no. no.

Goulbourn Forced Road 2-UMCU, 2 lane Major Collector - Future Mature Traffic Volumes from City of Ottawa Guidelines

2-UMCU 12,000 50 0.92 0.08 7 5 9715 773 552 845 67 48

Terry Fox 4-UAD, 4 lane urban arterial divided) - Future Mature Traffic Volumes from City of Ottawa Guidelines**

4-UAD 35,000 50 0.92 0.08 7 5 28336 2254 1610 2464 196 140

* Traffic and Road Parameters from City of Ottawa, “Environmental Noise Control Guideline” (ENCG). **It is noted that Terry Fox Drive is cuurently a two lane urban arterial (2-UAU). To take into account future mature state impacts we have assessed it as a four lane urban arterial divided (4-UAD).





20th December, 2016

p. 24


Table A2.2.3: Traffic Noise Impacts for Building Component Requirements

Point of Location Estimated Future

Noise Level* (dBA) Building

Reception Day Night Component Requirement

POR 1T Ground floor level window facing

Goulbourn Forced Road (Kindergarten Room 141)

65.81** 58.21***

Building components (walls, windows, etc.) must be designed to achieve indoor sound level criteria refer

Table A2.3.2.


Terry Fox Drive (Office Room TBA)

65.21** 57.62*** Building components (walls, windows, etc.) must be designed to achieve indoor sound level criteria refer

Table A2.3.2.


Goulbourn Forced Road (Principles Office Room 109)

65.96** 58.36*** Building components (walls, windows, etc.) must be designed to achieve indoor sound level criteria refer

Table A2.3.2.

*Daytime Noise Impacts based on Leq 16 h (07:00 – 23:00), Nighttime Noise Impacts based on Leq 8 h (23:00 – 07:00). See Table 2.3.3. **Daytime Noise Level predictions for Classroom / Office Areas > 65 dBA therefore building components need to be designed. ***Nighttime Noise Level predictions shown for information purposes only. Note: < 60 dBA therefore compliance with Ontario Building Code would be sufficient during this period.





20th December, 2016

p. 25


Table A2.2.4: Traffic Noise Impacts for Ventilation and Warning Clause Requirements

Point of Reception

Location (see Figures 1 to 7) Sound Levels due

to Road Traffic

(POR) Day Night Ventilation Warning

(dBA) (dBA) Requirements(1) Clauses(2)


Goulbourn Forced Road (Kindergarten Room 141)

65.81 58.21 Central ducted air-

conditioning Required Type D


Terry Fox Drive (Office Room TBA)




Goulbourn Forced Road (Principles Office Room 109)



*Daytime Noise Impacts based on Leq 16 h (07:00 – 23:00), Night Impacts based on Leq 8 h (23:00 – 07:00). Notes: 1. Ventilation requirements - see Table A2.3.5, Appendix 2.3. 2. Warning Clause Requirements - See Tables A2.3.5 and A2.3.6, Appendix 2.3.





20th December, 2016

p. 26


Table A2.2.5: Predicted Indoor Sound Levels*

Facade 1

Facade 2 Total City

Criterion

(dBA)

Area Window Wall Outdoor Indoor Area Window Wall Outdoor Indoor

Combined Indoor Level

Unit /

Room

(Worst Case)**

Period Point of Reception

(POR)

Level Level

Point of Reception

(POR) Level Level

(m2) (m2) (m2) (dBA) (dBA) (m2) (m2) (m2) (dBA) (dBA) (dBA)

Kindergarten

(Room 141)

Day POR 1T

(facing Goulbourn Forced Road)

124 7.1 18.5 66 29

POR 1T***

(facing Terry Fox

Drive)

124 - 48 66 19 29.4 45

*Prediction Method: IBANA Calculations (Refer to Appendix 2) **Most exposed location during the daytime period. ***Predicted Traffic Noise Levels at the centre of this solid wall were calculated to be 66 dBA during the daytime period.





20th December, 2016

p. 27


Appendix 2.3

City of Ottawa Noise Criteria and Warning Clauses

For further information refer to:

City of Ottawa Environmental Noise Control Guidelines1 (ENCG) MoE Guidelines, Noise Assessment in Land Use Planning2

Contents:

Table A2.3.1 Sound Level Criteria for Outdoor Living Areas Surface Transportation (Road and Rail)

Table A2.3.2 Indoor Sound Level Criteria

Surface Transportation (Road and Rail) Table A2.3.3: Road and Rail Noise

Daytime (07:00 – 23:00) & Nighttime (23:00 – 07:00) Building Component Requirements








20th December, 2016

p. 28


Table A2.3.1 Sound Level Criteria for Outdoor Living Areas* Surface Transportation (Road and Rail)

Time Period

Leq 16 hr (dBA)

16 hr, 07:00 – 23:00

55

*Reference: ENCG

1 Table 1.5

Table A2.3.2 Indoor Sound Level Criteria* Surface Transportation (Road and Rail)

Type of Space

Leq (Time Period (dBA))

Roadways, Transitways

and LRT

Rail (diesel engines/

locomotives)

General offices, reception areas, retail stores, etc. (Time period: 16 hr., 07:00 – 23:00)

50 45

Living/dining areas of residences, hospitals, schools, nursing/retirement homes, day-care centres, theatres, places of worship, libraries, individual semi-private offices, conference rooms, reading rooms, etc. (Time period: 16 hr., 07:00 – 23:00)

45 40

Sleeping quarters of hotels/motels (Time period: 8 hr., 23:00 – 07:00)

45 40

Sleeping Quarters of residences, hospitals, nursing/retirement homes, etc. (Time period: 8 hr., 23:00 – 07:00)

40 35

*Reference: ENCG

1 Table 1.6





20th December, 2016

p. 29


Table A2.3.3: Road and Rail Noise* Daytime (07:00 – 23:00) & Nighttime (23:00 – 07:00) Building Component Requirements

Assessment Location & Time

Outdoor Leq (dBA)

Building Component Requirements

Plane of the Living/Dining Room Windows

Daytime (07:00 – 23:00)

Road

Less than or equal to 65

Building compliant with Ontario Building Code

Greater than 65

Building components (walls, windows, etc.) must be designed to achieve indoor sound level criteria in Table A1.2.

Rail



Greater than 60


Plane of Bedroom Window

Nighttime (23:00 – 07:00)

Road



Greater than 60


Rail



Greater than 55


*Reference: ENCG

1 Table 1.8





20th December, 2016

p. 30


Table A2.3.4: Facade Material Requirement for Rail Noise Only*

Assessment

Location

Distance

to Railway

Sound Level

dBA

Facade Material

Requirement


24 hr.

Less than 100 m

Leq 24 hr less than or equal to 60

No additional requirement

Leq 24 hr greater than 60

Brick veneer or acoustically equivalent

Greater than 100 m

Leq 24 hr less than or equal to 60


Leq 24 hr greater than 60


*Reference: ENCG

1 Table 1.9





20th December, 2016

p. 31


Table A2.3.5: Combination of Road and Rail Noise* Day-time (07:00 – 23:00) & Night-time (23:00 – 07:00) Outdoor, Ventilation and Warning Clause Requirements

Assessment Location & Time

Outdoor Leq

(dBA)

Ventilation Requirements

Outdoor Control Measures

Warning Clauses

(see Table A1.6)

Outdoor Living Area (OLA)

Day-time (07:00 – 23:00)


N/A None Required Not Required

Greater than 55 to less than 60

N/A Control Measures (barriers) not required but should be considered.

Type A required if resultant Leq exceeds 55 dBA

Greater than 60

N/A

Control measures (barriers) required to reduce the Leq to below 60 dBA and as close to 55 dBA as technically, economically and administratively feasible.

Type B required if resultant Leq exceeds 55 dBA

Plane of the Living/Dining Room Windows

Day-time (07:00 –23:00)


None Required N/A Not Required

Greater than 55 to less than or equal to 65

Forced air heating with provision for central air-conditioning

N/A Required Type C

Greater than 65

Central ducted air-conditioning

N/A Required Type D


Night-time (23:00 – 07:00)


None Required N/A Not Required

Greater than 50 to less than or equal to 60

Forced air heating with provision for central ducted air-conditioning

N/A Required Type C

Greater than 60

Central ducted air-conditioning

N/A Required Type D

*Reference: ENCG

1 Table 1.10





20th December, 2016

p. 32


Table A2.3.6: Warning Type Clauses (may be used individually or in combination)*

Type

Warning Clause

Type A

"Purchasers/Tenants are advised that sound levels due to increasing (road) (transitway) (rail) (air) traffic may occasionally interfere with some activities of the dwelling occupants as the sound levels exceed the City's and the Ministry of Environment's noise criteria."

Type B

"Purchasers/Tenants are advised that despite the inclusion of noise control features in the development and within the building units, sound levels due to increasing (road) (transitway) (rail) (air) traffic may on occasions interfere with some activities of the dwelling occupants as the sound levels exceed the City's and the Ministry of Environment's noise criteria."

Type C

"This dwelling unit has been fitted with a forced air heating system and the ducting etc. was sized to accommodate central air-conditioning. Installation of central air-conditioning by the occupant will allow windows and exterior doors to remain closed, thereby ensuring that the indoor sound levels are within the City's and the Ministry of Environment's noise criteria. (Note: The location and installation of the outdoor air conditioning device should be done so as to comply with the noise criteria of MoE Publication NPC-216, Residential Air Conditioning Devices and thus minimize the noise impacts on and in the immediate vicinity of the subject property."

Type D

"This dwelling unit has been supplied with a central air-conditioning system which will allow windows and exterior doors to remain closed, thereby ensuring that the indoor sound levels are within the City's and the Ministry of Environment's noise criteria."

Type E “Purchasers/tenants are advised that due to the proximity of the adjacent industry (facility) (utility), sound levels from the industry (facility) (utility) may at times be audible.

*Reference: ENCG

1 Table 1.13 and MoE Guidelines

4





20th December, 2016

p. 33


Appendix 2.4

Calculation Details and Software Outputs

Contents: Sample Acoustical outputs from STAMSON and IBANA Calculations:

Stamson: POR 1 – Day

POR 2 – Day POR 3 – Day

Ibana: POR 1 – Day Wall facing Terry Fox POR 1 – Day Wall facing Goulbourn Forced Road





20th December, 2016

p. 34


STAMSON 5.0 SUMMARY REPORT Date: 18-12-2016

16:32:00

MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT

Filename: por1d.te Time Period: 16 hours

Description: POR1 DAY PLANE OF WINDOW

Road data, segment # 1: GOULBOURN

---------------------------------

Car traffic volume : 9715 veh/TimePeriod

Medium truck volume : 773 veh/TimePeriod

Heavy truck volume : 552 veh/TimePeriod

Posted speed limit : 50 km/h

Road gradient : 0 %

Road pavement : 1 (Typical asphalt or concrete)

Data for Segment # 1: GOULBOURN

-------------------------------

Angle1 Angle2 : -90.00 deg 90.00 deg

Wood depth : 0 (No woods.)

No of house rows : 0

Surface : 2 (Reflective ground

surface)

Receiver source distance : 33.00 m

Receiver height : 2.00 m

Topography : 1 (Flat/gentle slope; no

barrier)

Reference angle : 180.00

Road data, segment # 2: TERRY FOX

---------------------------------





Road gradient : 0 %


Data for Segment # 2: TERRY FOX

-------------------------------





surface)




barrier)


Result summary

--------------

! source ! Road ! Total

! height ! Leq ! Leq

! (m) ! (dBA) ! (dBA)

--------------------+---------+---------+---------

1.GOULBOURN ! 1.50 ! 64.09 ! 64.09

2.TERRY FOX ! 1.50 ! 60.97 ! 60.97

--------------------+---------+---------+---------

Total 65.81 dBA

TOTAL Leq FROM ALL SOURCES: 65.81





20th December, 2016

p. 35



16:35:19





---------------------------------





Road gradient : 0 %



-------------------------------





surface)




barrier)



---------------------------------





Road gradient : 0 %



-------------------------------





surface)




barrier)


Result summary

--------------



! (m) ! (dBA) ! (dBA)

--------------------+---------+---------+---------

1.GOULBOURN ! 1.50 ! 58.63 ! 58.63

2.TERRY FOX ! 1.50 ! 64.13 ! 64.13

--------------------+---------+---------+---------

Total 65.21 dBA






20th December, 2016

p. 36



16:38:05





---------------------------------





Road gradient : 0 %



-------------------------------





surface)




barrier)



---------------------------------





Road gradient : 0 %



-------------------------------





surface)




barrier)


Result summary

--------------



! (m) ! (dBA) ! (dBA)

--------------------+---------+---------+---------

1.GOULBOURN ! 1.50 ! 64.80 ! 64.80

2.TERRY FOX ! 1.50 ! 59.64 ! 59.64

--------------------+---------+---------+---------

Total 65.96 dBA






20th December, 2016

p. 37


Noise Sound Insulation Scenario Calculation Results

Project: POR 1 Day Wall Facing Terry Fox

ProjectID:

Date:12/19/2016

Outdoor level: NEF 34 or Leq24 66 or Ldn 67 dBA

Source Spectrum details:

100% ISO 717 Road Traffic

Corrections:

Receiving room:

Floor Area: 124.00 ft²

Absorbtion: 100% of floor area

Construction Description:

Element 1: G13_WS140(406)_GFB152_OSB11_AIR16_BRI89

Construction Type: 2by6 Wall

Area: 48.00 m²

Test ID: TLA-99-098a

Test Date: 3/3/1999

1 of 13mm gypsum board, 140 mm wood studs on 406 mm centres with glass fibr

e cavity insulation, 11 mm OSB, 16 mm airspace, 89 mm brick.

A-Weighted Sound Level vs. Frequency - Spectrum Values:

Frequency(Hz) A-Wtd Sound Level(dBA)

------------------------------------

50 3.7

63 7.6

80 10.0

100 15.7

125 12.7

160 5.2

200 2.1

250 6.2

315 5.8

400 -1.7

500 -5.0

630 -6.3

800 -8.7

1000 -10.8

1250 -14.1

1600 -17.7

2000 -20.6

2500 -21.5

3150 -25.4

4000 -31.7

5000 -39.1

Transmission Loss vs. Frequency - Spectrum Values:

Frequency(Hz) Transmission Loss(dB)

------------------------------------

50 33.0

63 31.1

80 30.6

100 25.9

125 28.9

160 38.5

200 43.5

250 40.4

315 41.9

400 50.4

500 54.7

630 57.0

800 61.4

1000 64.5

1250 66.8

1600 69.3

2000 71.2

2500 70.1

3150 71.9

4000 77.1

5000 82.3

Source Sound Level vs. Frequency - Spectrum Values:

Frequency(Hz) Source Sound Level(dB)

------------------------------------

50 71.0

63 69.0

80 67.3

100 64.9

125 61.9

160 61.2

200 60.7

250 59.4

315 58.4

400 57.6

500 57.0

630 56.7

800 57.6

1000 57.8

1250 56.2

1600 54.8

2000 53.6

2500 51.5

3150 49.6

4000 48.8

5000 47.3

Single Number Ratings

Outdoor Sound Level: 66 dBA

Indoor Sound Level: 19 dBA

A-wtd Level Reduction: 47 dB

A-wtd Reduction re Standard Source: 47 dB

OITC Rating: 40 dB





20th December, 2016

p. 38


Noise Sound Insulation Scenario Calculation Results

Project: POR 1 Day Wall with Window Facing Goulbourn Forced Road

ProjectID:

Date:12/19/2016

Outdoor level: NEF 34 or Leq24 66 or Ldn 67 dBA

Source Spectrum details:

100% ISO 717 Road Traffic

Corrections:

Receiving room:

Floor Area: 124.00 ft²

Absorbtion: 100% of floor area

Construction Description:

Element 1: G13_WS140(406)_GFB152_OSB11_AIR16_BRI89

Construction Type: 2by6 Wall

Area: 18.50 m²


Test Date: 3/3/1999

1 of 13mm gypsum board, 140 mm wood studs on 406 mm centres with glass fibr

e cavity insulation, 11 mm OSB, 16 mm airspace, 89 mm brick.

Element 2: GL3_AIR13_GL3

Construction Type: Window

Area: 7.10 m²


Test Date: 5/31/1999

Aluminum casement window (seals not taped).

A-Weighted Sound Level vs. Frequency - Spectrum Values:

Frequency(Hz) A-Wtd Sound Level(dBA)

------------------------------------

50 9.4

63 11.4

80 11.7

100 15.2

125 14.8

160 19.4

200 19.2

250 20.1

315 16.8

400 19.8

500 16.5

630 16.9

800 18.2

1000 19.8

1250 16.5

1600 13.5

2000 9.2

2500 5.7

3150 5.0

4000 3.9

5000 -1.4

Transmission Loss vs. Frequency - Spectrum Values:

Frequency(Hz) Transmission Loss(dB)

------------------------------------

50 24.5

63 24.5

80 26.2

100 23.7

125 24.1

160 21.6

200 23.7

250 23.8

315 28.1

400 26.1

500 30.4

630 31.0

800 31.7

1000 31.2

1250 33.4

1600 35.4

2000 38.7

2500 40.2

3150 38.8

4000 38.8

5000 41.9

Source Sound Level vs. Frequency - Spectrum Values:

Frequency(Hz) Source Sound Level(dB)

------------------------------------

50 71.0

63 69.0

80 67.3

100 64.9

125 61.9

160 61.2

200 60.7

250 59.4

315 58.4

400 57.6

500 57.0

630 56.7

800 57.6

1000 57.8

1250 56.2

1600 54.8

2000 53.6

2500 51.5

3150 49.6

4000 48.8

5000 47.3

Single Number Ratings

Outdoor Sound Level: 66 dBA

Indoor Sound Level: 29 dBA

A-wtd Level Reduction: 37 dB

A-wtd Reduction re Standard Source: 36 dB

OITC Rating: 29 dB





20th December, 2016

p. 39


Appendix 3

Stationary Noise Source Impacts

Contents:

A3.1 Plans and Figures Figure A3.1.1: Area Plan Showing Receptor Locations



Day and Evening only (19:00 – 23:00);



Night operation (23:00 – 07:00);


A3.2 Acoustic Modeling Detail Table A3.2.1 Calculation Configuration







A3.3 Stationary Noise Sources Criteria and Impact Assessment Table A3.3.1: Exclusion Limit Values for One-Hour Equivalent Sound Level

(Leq, dBA) at Outdoor Points of Reception2


(Leq, dBA) at Plane of Window of Noise Sensitive Spaces


Table A3.3.4:Acoustic Assessment Summary Table - Impacts from Stationary

Noise Sources

Table A3.3.5: Noise Mitigation, Recommended Maximum Outdoor Sound

Power for critical equipment





20th December, 2016

p. 40


Appendix A3.1

Plans and Figures

Contents

Figure A3.1.1: Area Plan Showing Receptor Locations



Day and Evening only (19:00 – 23:00); Noise Contours:

(Noise levels at 4.5 m)


Night operation (23:00 – 07:00); Noise Contours:

(Noise levels at 4.5 m)





20th December, 2016

p. 41


Figure A3.1.1: Area Plan Showing Site Boundary and Points of Reception

North

Goulbounr Forced Road (Future location)

Location of proposed Kanata North Catholic Elementary

School (site boundary)

Goulbourn Forced Road

Terry Fox Drive Kanata Highlands Public

School





20th December, 2016

p. 42


Figure A3.1.2: Site Plan showing Source Locations and Points of Reception

RTU_1

RTU_2

RTU_3RTU_4

RTU_5

RTU_6

RTU_7

RTU_8RTU_9

F_1 - 1125 cfm

F_3 - 1175 cfm

F_2 - 1075 cfm

18426150

18426150

18426200

18426200

18426250

18426250

18426300

18426300

18426350

18426350

18426400

18426400

50

20

70

0

50

20

70

0

50

20

75

0

50

20

75

0

50

20

80

0

50

20

80

0

50

20

85

0

50

20

85

0

50

20

90

0

50

20

90

0


Terry Fox Drive

POR 1

POR 2

POR 3

POR 4





20th December, 2016

p. 43


Figure A3.1.3: Scenario 1: Worst Case, All equipment in operation, Day and Evening (19:00 – 23:00); Noise Contours: (Noise levels at 4.5 m) with Mitigation

POR 1

POW: 47 dBA

OLA: 44 dBA

POR 2

POW: 41 dBA

OLA: 41 dBA

POR 3

POW: 45 dBA

OLA: 43 dBA

POR 4

POW: 42 dBA

OLA: 40 dBA

18425400

18425400

18425600

18425600

18425800

18425800

18426000

18426000

18426200

18426200

18426400

18426400

18426600

18426600

18426800

18426800

18427000

18427000

50

20

40

0

50

20

40

0

50

20

60

0

50

20

60

0

50

20

80

0

50

20

80

0

50

21

00

0

50

21

00

0

50

21

20

0

50

21

20

0

50

21

40

0

50

21

40

0

> 35.0 dB

> 40.0 dB

> 45.0 dB

> 50.0 dB

> 55.0 dB

> 60.0 dB

> 65.0 dB

> 70.0 dB

> 75.0 dB

> 80.0 dB

> 85.0 dB

North





Terry Fox Drive





20th December, 2016

p. 44


Figure A3.1.4: Scenario 2: Worst Case, All equipment in operation, Night operation (23:00 – 07:00); Noise Contours: (Noise levels at 4.5 m) with Mitigation

POR 1

POW: 45 dBA

OLA: 42 dBA

POR 2

POW: 38 dBA

OLA: 38 dBA

POR 3

POW: 42 dBA

OLA: 41 dBA

POR 4

POW: 39 dBA

OLA: 37 dBA

18425400

18425400

18425600

18425600

18425800

18425800

18426000

18426000

18426200

18426200

18426400

18426400

18426600

18426600

18426800

18426800

18427000

18427000

50

20

40

0

50

20

40

0

50

20

60

0

50

20

60

0

50

20

80

0

50

20

80

0

50

21

00

0

50

21

00

0

50

21

20

0

50

21

20

0

50

21

40

0

50

21

40

0

> 35.0 dB

> 40.0 dB

> 45.0 dB

> 50.0 dB

> 55.0 dB

> 60.0 dB

> 65.0 dB

> 70.0 dB

> 75.0 dB

> 80.0 dB

> 85.0 dB

North





Terry Fox Drive





20th December, 2016

p. 45


Appendix A3.2

Acoustic Modelling Details

Modeling Notes:

1. Acoustic model developed uses Cadna-A software, Version 4.6.155.

2. Sound propagation is modeled according to ISO 9613-2: 1996(E).

3. The whole of the site area is modeled as reflective, a conservative assumption.

4. MoE favoured conservative modelling assumptions are used, that is, ‘no subtraction of negative ground attenuation’ and ‘no negative path differences’.

Contents: Table A3.2.1 Calculation Configuration Table A3.2.2 Point of Reception Location Table Table A3.2.3 Point Sources Table A3.2.4 Noise Source Library Table A3.2.5 Scenario 1 - Point of Reception Impacts by Source,

Day (07:00 – 19:00) and Evening (19:00 – 23:00) Table A3.2.6 Scenario 2 - Point of Reception Impacts by Source,

Night (23:00 – 07:00) Table A3.2.7 Sample Calculations





20th December, 2016

p. 46


Table A3.2.1 Calculation Configuration

Configuration

Parameter Value

General

Country Germany (TA Lärm)

Max. Error (dB) 0.00

Max. Search Radius (m) 2000.00

Min. Dist Src to Rcvr 0.00

Partition

Raster Factor 0.50

Max. Length of Section (m) 1000.00

Min. Length of Section (m) 1.00

Min. Length of Section (%) 0.00

Proj. Line Sources On

Proj. Area Sources On

Ref. Time

Reference Time Day (min) 960.00

Reference Time Night (min) 480.00

Daytime Penalty (dB) 0.00

Recr. Time Penalty (dB) 6.00

Night-time Penalty (dB) 10.00

DTM

Standard Height (m) 0.00

Model of Terrain Triangulation

Reflection

max. Order of Reflection 3

Search Radius Src 100.00

Search Radius Rcvr 100.00

Max. Distance Source - Rcvr 1000.00 1000.00

Min. Distance Rvcr - Reflector 1.00 1.00

Min. Distance Source - Reflector 0.10

Industrial (ISO 9613)

Lateral Diffraction some Obj

Obst. within Area Src do not shield On

Screening Excl. Ground Att. over Barrier

Dz with limit (20/25)

Barrier Coefficients C1,2,3 3.0 20.0 0.0

Temperature (°C) 10

rel. Humidity (%) 70

Ground Absorption G 0.00

Wind Speed for Dir. (m/s) 3.0

Roads (RLS-90)

Strictly acc. to RLS-90

Railways (Schall 03 (1990))

Strictly acc. to Schall 03 / Schall-Transrapid

Aircraft (???)

Strictly acc. to AzB





20th December, 2016

p. 47



Name ID Height Coordinates

X Y Z

(m) (m) (m) (m)

POR_1_POW POR_1_POW 4.5 r 18426343 5020839 4.5

POR_1_OLA POR_1_OLA 1.5 r 18426335 5020833 1.5

POR_2_POW POR_2_POW 4.5 r 18426344 5020691 4.5

POR_2_OLA POR_2_OLA 1.5 r 18426336 5020701 1.5

POR_3_POW POR_3_POW 4.5 r 18426210 5020717 4.5

POR_3_OLA POR_3_OLA 1.5 r 18426219 5020725 1.5

POR_4_POW POR_4_POW 4.5 r 18426188 5020901 4.5

POR_4_OLA POR_4_OLA 1.5 r 18426194 5020895 1.5

*Height measured from ground.





20th December, 2016

p. 48



Name ID Result. PWL

Lw / Li

Operating Time

Height*

Coordinates

Day

Evening Night Type Value Day Evening Night

X Y Z

(dBA) (dBA)

(dBA)

(min/hour)

(min/hour)

(min/hour) (m)

(m) (m) (m)

RTU_1 RTU_1 82.8 82.8 82.8 Lw AAON_RN_6_10_Ton** 720 90 270 1.1 g

18426289

5020793 6.1


18426295

5020788

6.25


18426310

5020765

6.25


18426274

5020771

6.25


18426272

5020777 6.1


18426270

5020806

6.25


18426259

5020819 6.1


18426285

5020789

6.25


18426286

5020781

6.25

F_1 - 1125 cfm F_1 74.6 74.6 74.6 Lw F_1 720 90 270 0.1 g

18426280

5020779 5.1

F_2 - 1075 cfm F_2 73.9 73.9 73.9 Lw F_2 720 90 270 0.1 g

18426300

5020758 5.1

F_3 - 1175 cfm F_3 75.6 75.6 75.6 Lw F_3 720 90 270 0.1 g

18426281

5020797 5.1

*Height measured from finished roof level. **Mitigated to comply with maximum outdoor sound power.





20th December, 2016

p. 49



ID Type Oktave Spectrum (dB)

Source

Correction 31.5 63 125 250 500 1000 2000 4000 8000 A lin

Mitigated_AAON_RN_6_10_Ton* Lw -5 91 86 82 81 77 73 70 69 82.8 93.1 Mitigated_AAON_RN_6_10_Ton

Mitigated_AAON_RN_09_20_Ton* Lw -6 93 88 84 83 79 75 72 71 84.8 95.1 Mitigated_AAON_RN_09_20_Ton

Unmitigated_AAON_RN_6_10_Ton Lw 96 91 87 86 82 78 75 74 87.8 98.1 Unmit_AAON_RN_6_10_Ton

Unmitigated_AAON_RN_09_20_Ton Lw 99 94 90 89 85 81 78 77 90.8 101.1 Unmit_AAON_RN_09_20_Ton

F_1 Lw 75 78 78 71 67 66 62 55 74.6 82.6 F_1

F_2 Lw 74 77 78 70 66 65 60 53 73.9 82 F_2

F_3 Lw 75 78 79 72 68 67 63 56 75.6 83.1 F_3

*Equipment adjusted down to achieve compliance. Refer to Table A3.3.5 for maximum outdoor sound power for critical equipment.





20th December, 2016

p. 50


Table A3.2.5 Scenario 1 - Point of Reception Impacts by Source, Day and Evening (07:00 – 23:00)

Source Partial Level Scenario 1 Day

ID POR_1_POW POR_1_OLA POR_2_POW POR_2_OLA POR_3_POW POR_3_OLA POR_4_POW POR_4_OLA

RTU_1 37 34 28 22 33 29 31 26

RTU_2 39 36 35 32 35 31 32 28

RTU_3 38 39 38 40 32 25 31 26

RTU_4 37 32 24 22 38 39 32 29

RTU_5 35 30 23 21 36 32 31 26

RTU_6 38 35 25 23 36 34 34 35

RTU_7 36 32 23 20 33 34 33 34

RTU_8 39 35 25 23 36 32 33 28

RTU_9 38 34 22 22 36 33 32 28

F_1 23 22 10 10 22 22 17 18

F_2 22 15 27 24 21 21 4 4

F_3 25 25 14 13 22 22 19 20

Total 47 44 41 41 45 43 42 40

Table A3.2.6 Scenario 2: Point of Reception Impacts by Source, Night (23:00 – 07:00)

Source Partial Level Scenario 2 Night ID POR_1_POW POR_1_OLA POR_2_POW POR_2_OLA POR_3_POW POR_3_OLA POR_4_POW POR_4_OLA

RTU_1 35 31 26 20 31 27 28 24

RTU_2 37 34 33 29 33 29 30 25

RTU_3 36 37 36 37 29 23 28 24

RTU_4 34 29 22 20 35 37 30 26

RTU_5 32 28 20 18 33 30 28 24

RTU_6 36 32 23 20 33 32 32 32

RTU_7 33 29 20 17 31 32 31 32

RTU_8 36 33 23 21 33 30 30 26

RTU_9 36 32 20 19 34 30 30 25

F_1 20 20 8 8 19 20 15 15

F_2 19 13 25 21 18 19 1 1

F_3 22 23 11 10 19 19 17 17

Total 47 44 41 41 45 43 42 40





20th December, 2016

p. 51



Receiver Name: POR_1_OLA ID: POR_1_OLA X: 18426334.68 Y: 5020832.85 Z: 1.50

Point Source, ISO 9613, Name: ''RTU_2'', ID: ''RTU_2''

Nr. X Y Z Refl. DEN Freq. Lw l/a Optime K0 Dc Adiv Aatm Agr Afol Ahous Abar Cmet RL Lr

(m) (m) (m) (Hz) dB(A) dB dB (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A)

6 18426294.54 5020788.07 6.25 0 D 32 -45.4 0.0 0.0 0.0 0.0 46.6 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 -93.8

6 18426294.54 5020788.07 6.25 0 D 63 66.8 0.0 0.0 0.0 0.0 46.6 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 18.4

6 18426294.54 5020788.07 6.25 0 D 125 71.9 0.0 0.0 0.0 0.0 46.6 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 23.5

6 18426294.54 5020788.07 6.25 0 D 250 75.4 0.0 0.0 0.0 0.0 46.6 0.1 -3.0 0.0 0.0 4.8 0.0 0.0 27.0

6 18426294.54 5020788.07 6.25 0 D 500 79.8 0.0 0.0 0.0 0.0 46.6 0.1 -3.0 0.0 0.0 4.8 0.0 0.0 31.3

6 18426294.54 5020788.07 6.25 0 D 1000 79.0 0.0 0.0 0.0 0.0 46.6 0.2 -3.0 0.0 0.0 4.8 0.0 0.0 30.4

6 18426294.54 5020788.07 6.25 0 D 2000 76.2 0.0 0.0 0.0 0.0 46.6 0.6 -3.0 0.0 0.0 4.8 0.0 0.0 27.2

6 18426294.54 5020788.07 6.25 0 D 4000 73.0 0.0 0.0 0.0 0.0 46.6 2.0 -3.0 0.0 0.0 4.8 0.0 0.0 22.6

6 18426294.54 5020788.07 6.25 0 D 8000 69.9 0.0 0.0 0.0 0.0 46.6 7.1 -3.0 0.0 0.0 4.8 0.0 0.0 14.5

6 18426294.54 5020788.07 6.25 0 N 32 -45.4 0.0 -2.5 0.0 0.0 46.6 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 -96.3

6 18426294.54 5020788.07 6.25 0 N 63 66.8 0.0 -2.5 0.0 0.0 46.6 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 15.9

6 18426294.54 5020788.07 6.25 0 N 125 71.9 0.0 -2.5 0.0 0.0 46.6 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 21.0

6 18426294.54 5020788.07 6.25 0 N 250 75.4 0.0 -2.5 0.0 0.0 46.6 0.1 -3.0 0.0 0.0 4.8 0.0 0.0 24.5

6 18426294.54 5020788.07 6.25 0 N 500 79.8 0.0 -2.5 0.0 0.0 46.6 0.1 -3.0 0.0 0.0 4.8 0.0 0.0 28.8

6 18426294.54 5020788.07 6.25 0 N 1000 79.0 0.0 -2.5 0.0 0.0 46.6 0.2 -3.0 0.0 0.0 4.8 0.0 0.0 27.9

6 18426294.54 5020788.07 6.25 0 N 2000 76.2 0.0 -2.5 0.0 0.0 46.6 0.6 -3.0 0.0 0.0 4.8 0.0 0.0 24.7

6 18426294.54 5020788.07 6.25 0 N 4000 73.0 0.0 -2.5 0.0 0.0 46.6 2.0 -3.0 0.0 0.0 4.8 0.0 0.0 20.1

6 18426294.54 5020788.07 6.25 0 N 8000 69.9 0.0 -2.5 0.0 0.0 46.6 7.1 -3.0 0.0 0.0 4.8 0.0 0.0 12.0

6 18426294.54 5020788.07 6.25 0 E 32 -45.4 0.0 -4.3 0.0 0.0 46.6 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 -98.0

6 18426294.54 5020788.07 6.25 0 E 63 66.8 0.0 -4.3 0.0 0.0 46.6 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 14.2

6 18426294.54 5020788.07 6.25 0 E 125 71.9 0.0 -4.3 0.0 0.0 46.6 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 19.2

6 18426294.54 5020788.07 6.25 0 E 250 75.4 0.0 -4.3 0.0 0.0 46.6 0.1 -3.0 0.0 0.0 4.8 0.0 0.0 22.7

6 18426294.54 5020788.07 6.25 0 E 500 79.8 0.0 -4.3 0.0 0.0 46.6 0.1 -3.0 0.0 0.0 4.8 0.0 0.0 27.0

6 18426294.54 5020788.07 6.25 0 E 1000 79.0 0.0 -4.3 0.0 0.0 46.6 0.2 -3.0 0.0 0.0 4.8 0.0 0.0 26.1

6 18426294.54 5020788.07 6.25 0 E 2000 76.2 0.0 -4.3 0.0 0.0 46.6 0.6 -3.0 0.0 0.0 4.8 0.0 0.0 23.0

6 18426294.54 5020788.07 6.25 0 E 4000 73.0 0.0 -4.3 0.0 0.0 46.6 2.0 -3.0 0.0 0.0 4.8 0.0 0.0 18.4

6 18426294.54 5020788.07 6.25 0 E 8000 69.9 0.0 -4.3 0.0 0.0 46.6 7.1 -3.0 0.0 0.0 4.8 0.0 0.0 10.2

Point Source, ISO 9613, Name: ''RTU_8'', ID: ''RTU_8''

Nr. X Y Z Refl. DEN Freq. Lw l/a Optime K0 Dc Adiv Aatm Agr Afol Ahous Abar Cmet RL Lr

(m) (m) (m) (Hz) dB(A) dB dB (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) (dB) dB(A)

9 18426284.75 5020789.20 6.25 0 D 32 -45.4 0.0 0.0 0.0 0.0 47.5 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 -94.6

9 18426284.75 5020789.20 6.25 0 D 63 66.8 0.0 0.0 0.0 0.0 47.5 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 17.6

9 18426284.75 5020789.20 6.25 0 D 125 71.9 0.0 0.0 0.0 0.0 47.5 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 22.6

9 18426284.75 5020789.20 6.25 0 D 250 75.4 0.0 0.0 0.0 0.0 47.5 0.1 -3.0 0.0 0.0 4.8 0.0 0.0 26.1

9 18426284.75 5020789.20 6.25 0 D 500 79.8 0.0 0.0 0.0 0.0 47.5 0.1 -3.0 0.0 0.0 4.8 0.0 0.0 30.4

9 18426284.75 5020789.20 6.25 0 D 1000 79.0 0.0 0.0 0.0 0.0 47.5 0.2 -3.0 0.0 0.0 4.9 0.0 0.0 29.4

9 18426284.75 5020789.20 6.25 0 D 2000 76.2 0.0 0.0 0.0 0.0 47.5 0.6 -3.0 0.0 0.0 5.0 0.0 0.0 26.1

9 18426284.75 5020789.20 6.25 0 D 4000 73.0 0.0 0.0 0.0 0.0 47.5 2.2 -3.0 0.0 0.0 5.3 0.0 0.0 21.1

9 18426284.75 5020789.20 6.25 0 D 8000 69.9 0.0 0.0 0.0 0.0 47.5 7.8 -3.0 0.0 0.0 5.7 0.0 0.0 12.0

9 18426284.75 5020789.20 6.25 0 N 32 -45.4 0.0 -2.5 0.0 0.0 47.5 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 -97.1

9 18426284.75 5020789.20 6.25 0 N 63 66.8 0.0 -2.5 0.0 0.0 47.5 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 15.1

9 18426284.75 5020789.20 6.25 0 N 125 71.9 0.0 -2.5 0.0 0.0 47.5 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 20.1

9 18426284.75 5020789.20 6.25 0 N 250 75.4 0.0 -2.5 0.0 0.0 47.5 0.1 -3.0 0.0 0.0 4.8 0.0 0.0 23.6

9 18426284.75 5020789.20 6.25 0 N 500 79.8 0.0 -2.5 0.0 0.0 47.5 0.1 -3.0 0.0 0.0 4.8 0.0 0.0 27.9

9 18426284.75 5020789.20 6.25 0 N 1000 79.0 0.0 -2.5 0.0 0.0 47.5 0.2 -3.0 0.0 0.0 4.9 0.0 0.0 26.9

9 18426284.75 5020789.20 6.25 0 N 2000 76.2 0.0 -2.5 0.0 0.0 47.5 0.6 -3.0 0.0 0.0 5.0 0.0 0.0 23.6

9 18426284.75 5020789.20 6.25 0 N 4000 73.0 0.0 -2.5 0.0 0.0 47.5 2.2 -3.0 0.0 0.0 5.3 0.0 0.0 18.6

9 18426284.75 5020789.20 6.25 0 N 8000 69.9 0.0 -2.5 0.0 0.0 47.5 7.8 -3.0 0.0 0.0 5.7 0.0 0.0 9.5

9 18426284.75 5020789.20 6.25 0 E 32 -45.4 0.0 -4.3 0.0 0.0 47.5 0.0 -3.0 0.0 0.0 4.8 0.0 0.0 -98.9





20th December, 2016

p. 52


Appendix 3.3

Stationary Noise Sources Criteria and Impact Assessment

Contents:

Table A3.3.1: Exclusion Limit Values for One-Hour Equivalent Sound Level (Leq, dBA) at Outdoor Points of Reception2


(Leq, dBA) at Plane of Window of Noise Sensitive Spaces Table A3.3.3: Points of Reception Table A3.3.4: Acoustic Assessment Summary Table - Impacts from Stationary Noise

Sources Table A3.3.5: Noise Mitigation, Recommended Maximum Outdoor Sound

Power Octave Band Levels of equipment





20th December, 2016

p. 53


Table A3.3.1: Exclusion Limit Values for One-Hour Equivalent Sound Level (Leq, dBA) at Outdoor Points of Reception

2

Time of Day Class 1 Area (POR 5 to 7)

Class 2 Area (POR 1 to 4)

Class 3 Area Class 4 Area

07:00 – 19:00 50 50 45 55

19:00 – 23:00 50 45 40 55

Table A3.3.2: Exclusion Limit Values for One-Hour Equivalent Sound Level (Leq, dBA) at Plane of Window of Noise Sensitive Spaces

Time of Day Class 1 Area (POR 5 to 7)

Class 2 Area (POR 1 to 4)

Class 3 Area Class 4 Area

07:00 – 19:00 50 50 45 60

19:00 – 23:00 50 50 40 60

23:00 – 07:00 45 45 40 55

Notes: 1. Sound level limits are based on 1-hour equivalent sound levels.

2. Sound level limits for the testing and maintenance of emergency equipment are 5 dB greater than the sound level limits otherwise applicable to stationary sources. As such at all receptors the sound level limit applicable to the testing and maintenance of the emergency generator is 55 dBA. Note: Testing is only to be carried out during the daytime period (07:00 to 19:00).





20th December, 2016

p. 54



Point of

Reception

Description

POR 1 - POW (Plane of Window)

Vacant land zoned for potential noise sensitive use to the

north of the subject property (assessed as two storeys)

POR 1 - OLA (Outdoor Living Area)


north of the subject property (assessed as two storeys)



east of the subject property (assessed as two storeys)



east of the subject property (assessed as two storeys)



south of the subject property (assessed as two storeys)



south of the subject property (assessed as two storeys)



west of the subject property (assessed as two storeys)



west of the subject property (assessed as two storeys)

For assessment purposes, Plane of window (POW) points of reception have been taken as

upper floor windows 4.5 m above grade for two residences in the surrounding environment.

Outdoor Living Areas (OLA) have been assessed at 1.5 m above finished ground level, in

acoustic calculations.





20th December, 2016

p. 55


Table A3.3.4: Acoustic Assessment Summary Table - Impacts from Stationary Noise Sources

Point of

Reception ID

Estimated Sound Level

at POR* (Day and Evening)

(dBA)

Sound Level Limit

(Day and Evening)

(dBA)

Estimated Sound Level

at POR* (Night)

Sound Level Limit

(Night)

Compliance With

Performance Limit

POR_1_POW 47 50 45 45 Yes

POR_1_OLA 44 50 42 -** Yes

POR_2_POW 41 50 39 45 Yes

POR_2_OLA 41 50 38 -** Yes

POR_3_POW 45 50 42 45 Yes

POR_3_OLA 43 50 41 -** Yes

POR_4_POW 42 50 39 45 Yes

POR_4_OLA 40 50 37 -** Yes

*Estimated sound level predictions are based on the maximum sound power specified for

equipment as noted in Section 3.6 - Mitigation Measures and in Appendix 3.3, Table A3.3.5.

**Outdoor Living Area’s not considered noise sensitive during the nighttime period.

Refer to Tables A3.2.5 and A3.2.6 in Appendix 3 for detailed sound level estimates by

source.





20th December, 2016

p. 56


Table A3.3.5: Noise Mitigation, Recommended Maximum Outdoor Sound Power Octave Band Levels for critical equipment

Name Octave Spectrum (Hz/dBa)

63 125 250 500 1000 2000 4000 8000 A

RTU 1, 5 & 7 91 86 82 81 77 73 70 69 82.8

RTU 2, 3, 4, 6, 8, & 9 93 88 84 83 79 75 72 71 84.8

Note:

a. Octave band sound power levels in dB or dBA units re 10-12

Watts b. Units with greater sound power than those noted above are permissible providing suitable

alternative mitigation measures including noise barriers, silencers or acoustic louvres are provided. Alternative mitigation measures, if required, are to be reviewed by a qualified acoustical consultant prior to construction.

c. The maximum outdoor sound power ratings provided above are based on the assessed location of equipment as shown in Figure A3.1.2. It is recommended that a qualified acoustical consultant review any changes to equipment location prior to construction.

HUGH WILLIAMSON ASSOCIATES INC. Ottawa, Ontario, Canada



RESUMÉ: Dr. HUGH WILLIAMSON, P.Eng.

QUALIFICATIONS: Ph.D. Mechanical Engineering, University of New South Wales, 1972

B.Sc. Mechanical Engineering, (with Distinction), University of Alberta, 1967

Member, Professional Engineers, Ontario

Member, Canadian Acoustical Association

Member, American Society of Heating, Refrigeration and Air-conditioning

Engineers

KEY

COMPETENCIES: Environmental noise and vibration assessments, Environmental Compliance

Approval (ECA). Noise assessment for land use planning

Architectural and building acoustics, acoustics of office spaces, meeting rooms,

auditoriums and studios, noise and vibration control of building mechanical

services.

Industrial noise and vibration assessment and control.

Transportation noise and vibration.

PROFESSIONAL EXPERIENCE:

Hugh Williamson is a professional engineer with many years of experience in the measurement,

analysis and control of noise and vibration. Hugh Williamson Associates was incorporated in 1997 and

provides consulting services in architectural, building, industrial, transportation and environmental

acoustics and vibration. Clients include architects, engineering firms, industrial firms and government

departments. Prior to establishing Hugh Williamson Associates, his career included extensive periods

in industry as well as university level research and teaching. He is a former Director of the Acoustics

and Vibration Unit at the Australian Defence Force Academy. He has published over 50 engineering

and scientific papers and has been an invited speaker on noise and vibration at national and

international conferences. He has more than 20 years of experience as a consultant.

CLIENT LIST:

Hugh Williamson Associates provides consulting services to large and small clients including: National

Research Council, National Capital Commission, J. L. Richards & Associates, Barry Padolsky

Associates, HOK Urbana Architects, Genivar, Nasittuq Corporation, PWGSC, R. W. Tomlinson, Geo.

Tackaberry Construction and Miller Paving.

HUGH WILLIAMSON ASSOCIATES INC. Ottawa, Ontario, Canada



RESUMÉ: MICHAEL WELLS

QUALIFICATIONS: Registered Architect of NSW, Registration Number: 8111

B. Architecture (Hons), University of Sydney, 2002

B.Sc. Architecture, University of Sydney, 1999

Member, Canadian Acoustical Association

KEY

COMPETENCIES: Environmental noise and vibration assessments, Environmental Compliance

Approval (ECA). Noise assessment for land use planning.

Architectural and building acoustics, acoustics of office spaces, meeting rooms,

auditoriums and studios, noise and vibration control of building mechanical

services.

Industrial noise and vibration assessment and control.

Transportation noise and vibration.

Design services including sketch design, design development (development /

permit applications), contract documents, tendering and contract administration.

PROFESSIONAL EXPERIENCE:

Michael Wells is a professional Architect registered in NSW with many years of experience in the

Architectural and Construction industries. With key competencies in measurement, analysis and

control of noise and vibration, Michael Wells joined Hugh Williamson Associates in 2012 and

provides consulting services in architectural, building, industrial, transportation and environmental

acoustics and vibration. Clients include architects, engineering firms, industrial firms and government

departments. Prior to joining Hugh Williamson Associates, his career includes the founding of

Michael Wells Architect in Sydney Australia which specialized in the design of institutional,

commercial and residential projects. He is a Director of Architectural Workshops Australia and Vision

Blue Pty Ltd. He has more than 10 years of experience as a consultant.

CLIENT LIST:

Hugh Williamson Associates provides consulting services to large and small clients including: National

Research Council, National Capital Commission, J. L. Richards & Associates, Barry Padolsky

Associates, HOK Urbana Architects, Genivar, Nasittuq Corporation, PWGSC, R. W. Tomlinson, Geo.

Tackaberry Construction and Miller Paving.

Documents

ENVIRONMENTAL NOISE IMPACT ASSESSMENT FOR THE …