Appendix I – Noise Report€¦ · assumed at 85 dBA. The travel routes of the buses are shown on Figure 1 in Appendix A; • Bus brake testing, assumes 5 vehicles/day, modelled

Appendix I – Noise Report

Preliminary

GRT Bus Facility 300-350 Northfield Drive, City of Waterloo Acoustical Report Prepared for Region of Waterloo by IBI Group August 2016

IBI GROUP PRELIMINARY GRT BUS FACILITY 300-350 NORTHFIELD DRIVE, CITY OF WATERLOO ACOUSTICAL REPORT Prepared for Region of Waterloo

Document Control Page

August 2016

CLIENT: Region of Waterloo

PROJECT NAME: GRT Bus Facility 300-350 Northfield Drive, City of Waterloo

REPORT TITLE:

GRT Bus Facility 300-350 Northfield Drive, City of Waterloo Acoustical Report

IBI REFERENCE: 38631 VERSION: http://iprojects1.ibigroup.com/38631/Project Documents/05.0 Design (Work) Phase/Noise/CTR_Noise-2016-07-

04.docx\2016-08-05\AK

DIGITAL MASTER: ORIGINATOR: REVIEWER: AUTHORIZATION: CIRCULATION LIST: HISTORY:


Table of Contents

August 2016 i

List of Tables ...................................................................................................................... ii

List of Appendices ............................................................................................................. ii

1 Introduction .............................................................................................................. 1

2 Background and Noise Criteria .............................................................................. 1

3 Noise Prediction Methods and Noise Data ........................................................... 2

3.1 On-Site Noise ................................................................................................ 2 3.2 Receiver Locations ....................................................................................... 4

4 Results ...................................................................................................................... 4

4.1 On-Site Noise Sources ................................................................................. 4

4.2 On-Site Emergency Generator Noise Sources ............................................. 6

5 Recommendations ................................................................................................... 6


Table of Contents (continued)

August 2016 ii

List of Tables

Table 1 – Stationary Noise Level Criteria ....................................................................................... 2

Table 2 – Noise Sources (On-Site) ................................................................................................. 3

Table 3 –Receiver Locations (Off-Site) ........................................................................................... 4

Table 4 –Predicted Unattenuated Daytime Noise Levels (Off-Site) ............................................... 5

Table 5 –Predicted Unattenuated Nighttime Noise Levels (Off-Site) ............................................. 5

Table 6 –Emergency Generator Predicted Unattenuated Noise Levels (Off-Site) ......................... 6

List of Appendices

Appendix A – Noise Information Plan Appendix B – CadnaA Output


August 2016 1

1 Introduction IBI Group was retained by Region of Waterloo to complete a preliminary Acoustical Report to analyze the potential impacts of noise generated by the proposed Grand River Transit (GRT) Bus Facility located at 300-350 Northfield Drive in the City of Waterloo.

The 6.9 ha property is bounded by University Avenue to the North and East, Northfield Drive to the South, and existing commercial/industrial development to the west. The site location and layout is shown on the Noise Information Plans in Appendix A.

This report documents the acoustical analysis, findings, and recommendations required to support the development from an acoustical perspective.

2 Background and Noise Criteria The Ministry of Environment (MOE) noise guideline NPC-300 “Stationary and Transportation Sources – Approval and Planning” was used to determine the criteria considered for this study. The primary noise sources that may impact existing off-site residential receivers are on-site stationary noise sources in the form of rooftop HVAC equipment, bus traffic, tools and equipment, and emergency generators.

A receptor can be located in one of four area classes as defined by the MOE. These classifications are defined by the MOE as follows (Section A5 of NPC 300):

a) “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.”

b) “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).

c) “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 recreational area such as a cottage or a resort area; or

A wilderness area.

d) “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


August 2016 2

Has formal confirmation from the land use planning authority with the Class 4 area classification which is determined during the land use planning process.

On review of the above descriptions and the area surrounding the subject site, it is determined that the classification of the development area would be Class 2 given that it is located on the edge of the City of Waterloo. Note, an argument could be made that the classification could be Class 1 due to a Regional Road (Northfield Drive) being adjacent to the subject site, however, Class 2 is a conservative approach.

The MOE criteria for noise levels resulting from stationary noise sources are summarized in Table 1.

Table 1 – Stationary Noise Level Criteria

TIME PERIOD LOCATION CLASS 1 CLASS 2 CLASS 3 CLASS 4

0700 – 1900 Outdoor Living Area 50 dBA 50 dBA 45 dBA 55 dBA

1900 – 2300 Outdoor Living Area 50 dBA 45 dBA 40 dBA 55 dBA

0700 – 1900 Plane of Window 50 dBA 50 dBA 45 dBA 60 dBA



The MOE has also specified noise criteria for emergency generators that operate during non-emergency times such as testing and maintenance. The noise level criterion is 5 dBA greater than those for stationary noise listed in Table 1 above. Further, the noise emissions from emergency equipment are to be assessed independent of the other stationary noise sources.

3 Noise Prediction Methods and Noise Data For stationary noise modeling, “CadnaA v4.6” by DataKustik was used. This software is recognized in the industry for noise modeling and utilizes ISO 9613-2.

3.1 On-Site Noise The site will include a transit facility building, bus driving lanes, vehicular parking areas, and landscaped areas. The Noise Information Plan in Appendix A shows the site layout and the location of noise sources and receivers.

The following provides a preliminary summary of the equipment proposed to service the transit facility site. The noise levels represent those provided by the manufacturer for each specified source, or represent typical published conservative values.


August 2016 3

Table 2 – Noise Sources (On-Site)

LOCATION MAKE MODEL NOISE LEVEL QUANTITY HVAC

Roof Johnson Controls RTU J20 92.1 dBA 2 Roof Cook EF IMH EF-1 R1 97.2 dBA 8 Roof Haakon AHU MUA1,2 98.3 dBA 24

On-Site Equipment South Bays Impact Wrench Various 105 dBA 6 South Bays Power Washer Various 85 dBA 2

Southeast of Building Fueling Truck Various 75 dBA 1 Buses

Various Various 85 dBA 200 Emergency Generators

Northeast of Building To be determined 98 dBA 2

The following “worst-case” assumptions were used in the Table 2 and in the noise modelling:

• HVAC units on the roof with locations as shown on Figure 1 in Appendix A, operating times for each AHU/RTU/EF unit 45 minutes/hour daytime, 30 minutes/hour evening, 15 minutes/hour nighttime;

• Fueling truck operating 30 minutes/hour (based on two visits per week); • Two power washers in east bays, operating 10 minute/hour all times, using typical

published noise values. • Six impact wrenches in south bays, (quasi-steady impulse sound) operating equivalent

10 minute/hour all times, using typical published noise values; • Bus traffic, 200 vehicles leaving in the AM, 200 vehicles returning in the PM, modelled

as a line source travelling at 10 km/hour. Bus diesel engine noise level typical assumed at 85 dBA. The travel routes of the buses are shown on Figure 1 in Appendix A;

• Bus brake testing, assumes 5 vehicles/day, modelled as a line sources travelling

maximum 25 km/hour. Noise level adjusted to 90 dBA to account for additional brake noise. The travel route of the bus testing is shown on Figure 1 in Appendix A;

• Assume four towed buses per day, following same path as arriving buses; • Other incidental noise sources (idling buses inside building, delivery vehicles, etc.)

would not be significant compared to the outdoor noise and are not included in the modelling;

• Two emergency generators operating 30minute/hour with testing once per month

during daytime hours (note that the emergency generators are modelled as a stand-alone scenario).


August 2016 4

3.2 Receiver Locations To facilitate analysis and description, various sensitive receiver locations were identified. All receivers were located at the worst case locations (most exposed) for both day and night time noise. As all receivers are two storey residential buildings, the receiver locations are situated flush with the building façade on each floor of the building to represent the outside of bedroom and living room windows.

In terms of Outdoor Living Areas (OLAs) receiver locations, all are considered to be located at the most exposed building location and coincide with the building façade receiver locations. Note, if noise levels exceed the maximum allowed levels, on-site mitigation must be provided to protect the entire property from noise impacts, not only at the specific receiver locations.

Table 3 identifies the various existing off-site receiver locations (refer to Noise Information Plan in Appendix A for locations).

Table 3 –Receiver Locations (Off-Site)

RECEIVER LOCATION REPRESENTS

Receiver 1 843 Bridge St W Façade Floors 1-2, OLA

Receiver 2 827 Bridge St W Façade Floors 1-2, OLA

Receiver 3 550 Northfield Dr E Façade Floors 1-2, OLA

Receiver 4 531 Northfield Dr E Façade Floors 1-2, OLA

Receiver 5 380 Country Squire Rd Façade Floors 1-2, OLA





Receiver 10 633 Breakwater Cres Façade Floors 1-2, OLA



4 Results The noise modelling program “CadnaA v4.6” by DataKustik, was used to predict the Stationary Noise Levels from the on-site noise sources.

4.1 On-Site Noise Sources Daytime noise levels produced by the on-site noise sources as received by the existing off-site residential receivers are summarized in Table 4.


August 2016 5

Table 4 –Predicted Unattenuated Daytime Noise Levels (Off-Site)

As shown in Table 4, the noise levels produced by the proposed on-site noise sources do not exceed 50 dBA daytime, or 45 dBA evening time criteria at the existing off-site residential receivers. Accordingly noise mitigation is not required.

Table 5 summarizes the nighttime noise levels by the on-site noise sources as received by the existing off-site residential receivers.

Table 5 –Predicted Unattenuated Nighttime Noise Levels (Off-Site)

RECEIVER DAYTIME

Receiver 1 34.3 dBA

Receiver 2 37.1 dBA

Receiver 3 40.3 dBA

Receiver 4 39.2 dBA

Receiver 5 42.0 dBA

Receiver 6 40.7 dBA

Receiver 7 40.6 dBA

Receiver 8 39.9 dBA

Receiver 9 38.4 dBA

Receiver 10 39.6 dBA



RECEIVER DAYTIME

Receiver 1 29.5 dBA

Receiver 2 32.4 dBA

Receiver 3 35.6 dBA

Receiver 4 34.5 dBA

Receiver 5 37.2 dBA

Receiver 6 36.0 dBA

Receiver 7 35.9 dBA

Receiver 8 35.1 dBA

Receiver 9 33.6 dBA





August 2016 6

As shown in Table 5, the nighttime noise levels produced by the proposed on-site noise sources do not exceed 45 dBA at the existing off-site residential receivers and accordingly noise mitigation is not required.

4.2 On-Site Emergency Generator Noise Sources CadnaA v4.6 was used to predict the noise levels produced by the proposed on-site emergency generator testing as received by the existing off-site residential receivers. The results are summarized in Table 6.

Table 6 –Emergency Generator Predicted Unattenuated Noise Levels (Off-Site)

As shown in Table 6, the noise levels produced by the two proposed emergency generators while in operation during testing (assumed to be during daytime hours) do not exceed 55 dBA at each existing off-site receiver location and accordingly noise mitigation is not required.

5 Recommendations As demonstrated in this report, noise mitigation is not required to bring on-site noise sources within this development into compliance with the MOE noise criteria. The following specific recommendation is made to ensure the subject site is developed to protect the environment.

Recommendation #1

That at final design, the on-site noise sources and assumptions described in this Report are confirmed and revised accordingly. If the revised on-site noise sources are found to generate noise levels in excess of the maximum allowable MOE levels for existing off-site receivers, appropriate on-site mitigation measures are to be provided.

RECEIVER DAYTIME

Receiver 1 2.2 dBA

Receiver 2 4.4 dBA

Receiver 3 25.6 dBA

Receiver 4 25.0 dBA

Receiver 5 28.6 dBA

Receiver 6 27.4 dBA

Receiver 7 26.7 dBA

Receiver 8 25.7 dBA

Receiver 9 23.7 dBA





August 2016 7

Based on the preceding we conclude that this development has been designed appropriately to address noise impacts from the on-site stationary noise sources.

* * * * * * * * * * * * * * Yours truly

IBI GROUP

John Perks, MBA, P.Eng Andy Kroess, M.Eng., P.Eng. Associate Director

IBI GROUP PRELIMINARY GRT BUS FACILITY 300-350 NORTHFIELD DRIVE, CITY OF WATERLOO ACOUSTICAL REPORT Submitted to Region of Waterloo

August 2016 A-1

Appendix A – Noise Information Plan

FILE:J:\38631_GRT_Nrthfld\5.9 Drawings\59civil\current\38631N.dwg LAYOUT:FIG1

LAST SAVED BY:Patrick.cloutier, Tuesday, July 12, 2016 5:29:03 PM PLOTTED BY:Patrick Cloutier Thursday, July 14, 2016 1:14:06 PM

SCALE

PROJECT No.

DATE

NTS

July 12, 2016

38631

REGION OF WATERLOO

CITY OF WATERLOO

GRT BUS FACILITY

300-350 NORTHFIELD DRIVE

NOISE INFORMATION PLAN

FIGURE 1

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IBI GROUP

101 - 410 Albert Street

Waterloo ON N2L 3V3 Canada

tel 519 585 2255 fax 519 585 2269

ibigroup.com

IBI GROUP PRELIMINARY GRT BUS FACILITY 300-350 NORTHFIELD DRIVE, CITY OF WATERLOO ACOUSTICAL REPORT Submitted to Region of Waterloo

August 2016 A-2

Appendix B – CadnaA Output


LAST SAVED BY:Patrick.cloutier, Tuesday, July 12, 2016 5:29:03 PM PLOTTED BY:Patrick Cloutier Thursday, July 14, 2016 1:13:51 PM

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PROJECT No.

DATE

NTS

July 12, 2016

38631

REGION OF WATERLOO

CITY OF WATERLOO

GRT BUS FACILITY


OFF-SITE NOISE LEVELS

(ON-SITE SOURCES)

FIGURE 2

IBI GROUP



tel 519 585 2255 fax 519 585 2269

ibigroup.com

N


LAST SAVED BY:Patrick.cloutier, Tuesday, July 12, 2016 5:25:22 PM PLOTTED BY:Patrick Cloutier Tuesday, July 12, 2016 5:28:08 PM

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PROJECT No.

DATE

NTS

July 12, 2016

38631

REGION OF WATERLOO

CITY OF WATERLOO

GRT BUS FACILITY


OFF-SITE NOISE LEVELS

(ON-SITE EMERGENCY GENERATOR)

FIGURE 3

IBI GROUP



tel 519 585 2255 fax 519 585 2269

ibigroup.com

N