Noise Feasibility Study 2480 Old Bronte Road, Oakville, Ontario

Transcription

1 Noise Feasibility Study 2480 Old Bronte Road, Oakville, Ontario Prepared for: New Horizon Development Group (Bronte) Inc. 69 John Street South, Suite 400 Hamilton, Ontario L8N 2B9 Prepared by Sheeba Paul, MEng, PEng and Bill Gastmeier, MASc, PEng June 15, 2013

2 Table of Contents 1 Introduction and Summary Site Description and Noise Sources Assessment of Road Traffic Noise on the Proposed Residential Buildings Road Traffic Noise Criteria Traffic Noise Assessment Road Traffic Data Road Traffic Noise Predictions Discussion and Recommendations Outdoor Living Areas Ventilation Requirements Building Facade Construction Warning Clauses Assessment of Existing Stationary Sources of Sound Criteria for Acceptable Sound Levels Minimum Hour Background Sound Levels at the Residential Receptors Noise Assessment Discussion and Recommendations With Regard to Stationary Noise Sources Summary of Recommendations Implementation Figure 1: Key Plan Figure 2: Proposed Site Plan Showing Prediction Locations Figure 3: Sketch Indicating Location of Rooftop Mechanical Equipment and Residential Receptors Figure 4: Daytime Sound Level Contours at 7 m in Height Figure5: Nighttime Sound Level Contours at 7 m in Height Appendix A: Supporting Drawings Appendix B: Traffic Information Appendix C: Sample STAMSON 5.04 Output

3 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, Introduction and Summary HGC Engineering was retained by New Horizon Development Group (Bronte) Inc. to conduct a noise feasibility study for a proposed mid-rise residential development (2480 Old Bronte Road) in the Town of Oakville, Ontario. The surrounding area includes existing commercial land uses to the north and existing residences to the west, south and east. A noise study is required by the municipality as part of the planning and approvals process, specifically for a Zoning By-Law Amendment. Road traffic information for Dundas Street, Bronte Road and Old Bronte Road were obtained from the Region of Halton and the Town of Oakville. The data was used to predict future traffic sound levels at the locations of the proposed residential dwelling facades. The predicted sound levels were compared to the guidelines of the Ministry of Environment (MOE), Region and Town. The current analysis is based on a review of the pertinent MOE guidelines, a review of the latest site plan concept prepared by Karp Namisniak Yamamoto provided to HGC Engineering on June 3, 2013, site visits, and review of an aerial photo of the area. Site visits were conducted during March 2013 to identify significant transportation and commercial noise sources in the vicinity of the proposed development. Reasonable assumptions have been used in the analysis to predict sound levels associated with nearby commercial operations on the proposed development. The predicted sound levels were compared to the guidelines of the Ministry of Environment (MOE) Guidelines for Noise Control in Land Use Planning. The results of this study indicate that with suitable noise control measures integrated into the design of building, it is feasible to achieve the indoor MOE guideline sound levels from the road traffic sources. The recommended noise control measures include appropriate wall and window glazing assemblies, and air-conditioning of suites so that windows can be kept closed. A number of warning clauses will need to be included in the property and tenancy agreements to warn occupants of potentially audible transportation noise levels and the presence of nearby commercial plaza.

4 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, Site Description and Noise Sources Figure 1 is a key plan of the site. Figure 2 is the latest site plan concept prepared by Karp Namisniak Yamamoto provided to HGC Engineering on June 3, Prediction locations [A] to [K] are indicated on Figure 2 for reference purposes. The proposed residential development is to consist of two 8-storey residential buildings, underground parking area and ground level parking areas. One heritage house is to be relocated to the southeast corner of the site. Appendix A includes supporting drawings and building elevations. Site visits were made by HGC Engineering personnel in the month of March 2013 to make observations of the acoustical environment, inspect and perform sound level measurements of neighbouring commercial operations and background sound levels due to road traffic. There is one commercial plaza to the north which includes the following businesses: Fasada (windows, doors, shutter, blinds, interiors), Westoak Animal Hospital, Ambiance Spa and Palermo Pub. There are existing residences to the west, east and south of the subject site. 3 Assessment of Road Traffic Noise on the Proposed Residential Buildings 3.1 Road Traffic Noise Criteria Guidelines for acceptable levels of road traffic noise impacting indoor spaces are given in the MOE publication LU-131 "Noise Assessment Criteria in Land Use Planning, 1997", its Annex and its accompanying document Requirements, Procedures and Implementation, These criteria are listed in Table I below. The values in Table I are energy equivalent average sound levels [L EQ ] in units of A-weighted decibels [dba].

5 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 Area Table I: MOE Road Traffic Noise Criteria (dba) Daytime L EQ (16 hour) Road Nighttime L EQ (8 hour) Road Outside Bedroom Windows dba Outdoor Living Area 55 dba -- Inside Living/Dining Rooms 45 dba -- Inside Bedrooms dba Daytime refers to the period between 07:00 and 23:00, while nighttime refers to the period between 23:00 and 07:00. The term "Outdoor Living Area" (OLA) is used in reference to an outdoor patio, a backyard, a terrace or other area where passive recreation is expected to occur. Balconies that are less than 4 m in depth are not considered to be outdoor living areas under MOE guidelines. The MOE guidelines allow the daytime sound levels in an Outdoor Living Area (OLA) to be exceeded by up to 5 dba, without mitigation, provided that a clause warning future occupants of the potential noise concern is included to advise future owners or tenants through all offers of purchase and sale, and rental agreements. Where OLA sound levels exceed 60 dba, physical mitigation is recommended to reduce the OLA sound level to 60 dba or less. MOE guidelines require central air conditioning or other ventilation system installed prior to occupancy as an alternative means of ventilation to open windows for dwellings where nighttime sound levels outside bedroom windows exceed 60 dba or daytime sound levels exceed 65 dba outside living room windows. Provision for air conditioning is required when nighttime sound levels at bedroom windows are in the range of 51 to 60 dba. Sound attenuating building constructions are required when nighttime sound levels exceed 60 dba at the plane of the bedroom window due to road noise. Warning clauses are required to notify future residents of possible sound level excesses are also required when nighttime sound levels exceed 50 dba at the plane of the bedroom window due to road traffic.

6 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, Traffic Noise Assessment Road Traffic Data The Town of Oakville recently adopted Old Bronte Road/Khalsa Gate from the Region of Halton and has not collected any traffic volume data. Data for Old Bronte Road/Khalsa Gate was obtained from HGC Engineering project files and has been used in the absence of recent data from the Town of Oakville. A speed limit of 60 km/h was used for Khalsa Gate. An estimated commercial vehicle percentage of 2% medium trucks was also used in the analysis, along with a day-night split of 90%/10%. Ultimate road traffic information for the Dundas Street and Bronte Road was obtained from the Region of Halton, and is provided in Appendix B. A speed limit of 60 km/h was used for both roadways. A commercial vehicle percentage of 13% was used for Dundas Street, split into 8% medium trucks and 5% heavy trucks, along with a day-night split of 90%/10%. A commercial vehicle percentage of 8% was used for Bronte Road, split into 5% medium trucks and 3% heavy trucks, along with a day-night split of 90%/10%. Table II below summarizes the road traffic volumes used in the current analysis. Table II: Ultimate Road Traffic Data Road Name Cars Medium Heavy Trucks Trucks Total Daytime Dundas Nighttime Street Total Daytime Bronte Road Nighttime Total Daytime Old Bronte Nighttime Road Total

7 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, Road Traffic Noise Predictions Prediction locations were chosen around the subject site to obtain a good representation of the future sound levels at the dwelling facades. The predictions were made using STAMSON version 5.04, a computer algorithm developed by the MOE. Sample STAMSON output is included in Appendix C. The results of the predictions are presented in Table III. Sound levels were predicted at the most impacted facades during the daytime and nighttime hours to investigate ventilation requirements. The building envelope setback indicated on the latest site plan concept was used in the analysis. Table III: Predicted Future Traffic Sound Levels Prediction Location Description Daytime At Façade, L EQ (16) Nighttime At Façade, L EQ (8) [A] Northwest façade, Building [B] North façade, Building [C] Northeast façade, Building [D] East façade, Building [E] South facade, Building [F] Southwest façade, Building [G] Northwest façade, Building [H] North façade, Building [I] East façade, Building [J] South façade, Building [K] West façade, Building

8 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, Discussion and Recommendations The sound level predictions indicate that road traffic sound levels exceed MOE criteria during the daytime and nighttime at the facades with exposure to the roadways. Recommendations are provided below Outdoor Living Areas The dwelling units in the 8-storey buildings will have balconies that are less than 4 m in depth. Such balconies are exempt from the definition of OLA under MOE guidelines. They are therefore, exempt from traffic noise assessment and physical mitigation will not be required. There are no other outdoor amenity areas identified on the site plan concept Ventilation Requirements The predicted sound levels at all the facades are high enough that the residential buildings should be equipped with central air conditioning systems to allow windows to remain closed. It is anticipated that central air conditioning systems will be provided in all suites. The outdoor rooftop mechanical equipment associated with the central air conditioning systems for the residential buildings should comply with the criteria of MOE publication NPC-205, Sound Level Limits for Stationary Sources in Class 1 & 2 Areas (Urban) Building Facade Construction Predicted sound levels at the building facades were used to determine preliminary sound insulation requirements for the building envelope. Exterior Wall Construction The construction of the exterior walls of the buildings has not yet been finalized, but may include masonry components or spandrel glass and/or metal panels within an aluminum window system. The ground floors will include stone, the second floor will include partial stone materials and the rest of the floors will include EIFS material. In this analysis, it has been assumed that sound transmitted through elements other than the glazing elements is negligible in comparison. For example, if the exterior walls include spandrel glass or metal panels within an aluminum window system, sufficient

9 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 sound insulation can typically be achieved by using a drywall assembly (2 layers) on separate framing behind the spandrel panels. Exterior Doors There may be glazed exterior doors (sliding or swing) for entry onto the balconies from living/dining rooms and some bedrooms. The glazing areas of the doors should be counted as part of the total window glazing area. All exterior doors should include good weather seals to reduce air infiltration to the minimum achievable levels. Acoustical Requirements for Glazing Assuming a maximum window to floor area of 50% (30% fixed and 20% operable) for the living/dining rooms and 50% for the bedrooms (30% fixed and 20% operable), the minimum acoustical requirement for the basic window glazing, including glass in fixed sections, sliding doors, and operable windows, is shown in Table IV.

10 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 Table IV: Required Glazing STC for Specific Facades Prediction Location Facade Space Glazing STC [A] Northwest façade, Building 2 [B] North façade, Building 2 [C] Northeast façade, Building 2 [D] East façade, Building 2 [E] South façade, Building 2 [F] Southwest façade, Building 1 [G] Northwest façade, Building 1 [H] North façade, Building 1 [I] East façade, Building 1 [J] South façade, Building 1 [K] West façade, Building 1 Living/Dining 34 Bedroom 32 Living/Dining 34 Bedroom 32 Living/Dining 30 Bedroom OBC Living/Dining Bedroom OBC OBC Living/Dining 30 Bedroom OBC Living/Dining 33 Bedroom 32 Living/Dining 30 Bedroom 30 Living/Dining 33 Bedroom 32 Living/Dining 30 Bedroom OBC Living/Dining Bedroom Living/Dining Bedroom OBC OBC OBC OBC These glazing requirements can be met using fairly standard sealed units. Operable sections include sliding glass doors and operable windows, and provided that they include a good seal, will not significantly affect overall performance. Operable windows and sliding glass doors must be wellfitted and weather-stripped. Sample window assemblies which may achieve the STC requirements are summarized in Table V below. Note that acoustic performance varies with manufacturers construction details, and these are

11 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 only guidelines to provide some indication of the type of glazing likely to be required; the STC requirements in Table IV must be met, and should be certified by the supplier as such. Table V: Window Constructions Satisfying STC Requirements STC Requirement Sample Glazing Configuration (STC) OBC 32 6(13)6, 4(16)4, 3(20)3 34 6(20)6, 4(25)4, 3(32)3 In Table V, the numbers outside the parentheses indicate minimum pane thicknesses in millimetres and the number in parentheses indicates the minimum inter-pane gap in millimetres. OBC indicates any glazing construction meeting the minimum requirements of the Ontario Building Code. When the detailed floor plans and building elevations are available for both residential buildings, an acoustical consultant should refine the glazing constructions based on actual window to floor areas Warning Clauses The MOE noise guidelines recommend that warning clauses be included in the property and tenancy agreements for all dwellings, to inform prospective occupants of the potential traffic sound level excesses. The following sample warning clauses can be modified by the Municipality, as required. 8-storey residential buildings Type I: Purchasers are advised that despite the inclusion of noise control features in this development area and within the dwelling units, sound from increasing road traffic may continue to be of concern and may occasionally interfere with some activities of the dwelling occupants, as the outdoor traffic sound levels may exceed the noise criteria of the Municipality and the Ministry of Environment. This dwelling unit has been supplied with a central air conditioning system which allows windows and exterior doors to remain closed, thereby ensuring that the indoor sound levels are within the noise criteria of the Municipality and the Ministry of the Environment.

12 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 Purchasers are advised of the proximity of adjacent commercial plaza, the sound from which may at times be audible. These sample clauses are provided by the MOE as an example and can be modified by the Municipality as required. The reader is referred to Section 5 which contains a summary of the noise control recommendations for road traffic as well as industrial/commercial noise. 4 Assessment of Existing Stationary Sources of Sound There is one commercial building abutting the north property line of the subject site. HGC Engineering visited the subject site to observe these operations and identify potentially significant sources of sound during the month of March Access to the rooftop was not obtained. From site observations and from aerial photos of the adjacent commercial building, the noise sources identified to be potentially significant with respect to the subject site were associated rooftop mechanical equipment. Figure 1 indicates the nearby commercial building. The commercial plaza to the north which includes the following businesses: Fasada (windows, doors, shutter, blinds, interiors), Westoak Animal Hospital, Ambiance Spa and Palermo Pub. The businesses in the area of the subject site can be classified as commercial or office use. Typical hours of operation are 8 am to 6 pm. There is a pub which may be open until 11 pm. For the purposes of this analysis, the hours of operation were assumed to be 7 am to 11 pm. 4.1 Criteria for Acceptable Sound Levels Under MOE guidelines, the acoustical environment in this area is classified as urban or Class 1, as background sound levels are set by significant volumes of road traffic on surrounding roadways during daytime and night-time hours. Traffic on Dundas Street and Bronte Road audibly dominates the existing sound levels on the site. Stationary sources of noise are defined as all sources that emit noise within a commercial or

13 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 industrial facility boundary. The commercial plaza to the north of the proposed residential development can be classified as stationary sources of sound. The Ministry of the Environment (MOE) provides guidelines for the assessment of stationary noise sources. LU-131, Noise Assessment Criteria in Land Use Planning, and its accompanying Annex, is intended for use in the planning of noise sensitive land uses adjacent to industrial and commercial facilities. The facade of a residence (i.e., the plane of a window to a noise sensitive interior space such as a bedroom or living/dining room), or any associated usable outdoor area are considered to be sensitive points of reception. For an urban area such as this, LU-131 stipulates that the limit for non-impulsive sound (sounds that do not have a marked impulsive character) is the greater of the exclusionary minimum sound level limit, or the hourly average level of road traffic (L eq ) in any hour that the source under consideration may operate (i.e. L eq1hr ). The exclusionary sound level limit for an urban Class 1 area is taken to be 50 dba during daytime hours (07:00 to 23:00), and 45 dba during nighttime hours (23:00 to 07:00). If the background sound levels due to road traffic exceed the exclusionary limits, then the background sound level becomes the criterion. The sound level limits in LU-131 are quite similar to those in NPC-205 which is used for industrial approvals under the Environmental Protection Act, with the exception that for land use planning purposes, the MOE guidelines allow for minor excesses, considering that control measures are not always fully feasible or effective. Occasional deliveries to restaurants and convenience stores are exempt from noise assessment, but heavy truck movements at a warehouse or busy shipping/receiving docks at an industry must generally be assessed. The building to the north may have deliveries with small cube vans, since there is no space for large tractor trailers. Trucking activities have not been included in this assessment since these activities were not observed during the site visit. Compliance with MOE criteria generally results in acceptable levels of sound at residential receptors although there may be residual audibility during periods of low background sound.

14 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, Minimum Hour Background Sound Levels at the Residential Receptors Typical ambient sound levels can be determined through prediction of road traffic volumes in areas where traffic sound is dominant. Where it can be demonstrated that the hourly ambient sound levels are greater than the exclusionary minimum limits listed above, the criterion becomes the lowest predicted one-hour L EQ sound level during each respective period. At locations where the ambient sound levels are low, the exclusionary minimum criteria of 50/45 apply. Because background sound in the vicinity of the subject development is dominated by road traffic it is appropriate to predict hourly background sound from road traffic volumes in order to determine applicable limits for impact of stationary noise sources. Hourly daytime traffic data was available for Dundas Street and Bronte Road from the Region of Halton and is provided in Appendix A. The minimum traffic volume during the daytime hours occurs at pm. The minimum traffic volume during the nighttime hours occurs at 3 4 am. A commercial vehicle percentage of 8% was used for Bronte Road, split into 5% medium trucks and 3% heavy trucks along with a posted speed limit of 60 kph. A commercial vehicle percentage of 13% was used for Dundas Street, split into 8% medium trucks and 5% heavy trucks along with a posted speed limit of 80 kph. The traffic volumes were then used to predict minimum traffic sound levels at the closest residential receptors (R1 and R2, as shown in Figure 3) during the quietest day/nighttime hours. The worst case locations are the third and fourth floors of the residential buildings where the commercial plaza rooftop units are most exposed.

15 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 Table VI: Predicted Minimum Hourly Sound Levels and Noise Level Criteria at Residential Receptors [dba] Receptor Daytime (07:00 23:00) Night-time (23:00 07:00) R1, north façade, of 8-storey building facing Dundas Street R2, north façade of 8-storey building facing Dundas Street with exposure to Bronte Road Since the sound levels predicted are higher than the minimum exclusionary limits at the closest receptors, the predicted sound levels in Table VI were used to set both the daytime and nighttime criteria. It is noted that background sound levels from road traffic will be even higher in the future, due to future growth of road traffic, as the area develops. In each case, the limits apply at any point on the residential property, and outside the residential windows. 4.3 Noise Assessment Predictive noise modelling was used to assess the potential sound impact of rooftop equipment at the closest residential receptors. The noise prediction model was based on sound emission levels for rooftop equipment, assumed operational profiles (during the daytime), and established engineering methods for the prediction of outdoor sound propagation. These methods include the effects of distance, air absorption, and acoustical screening by barrier obstacles. Sound emission data for the rooftop equipment was obtained for similar commercial plaza from HGC Engineering project files and were used in the analysis. In accordance with establishing the predictable worst-case conditions, the rooftop HVAC equipment was assumed to operate at 100% capacity during daytime and evening hours, and 50% during night-time hours. The sound levels were used as input to a predictive computer model. The software used for this purpose (Cadna-A version is a computer implementation of ISO Standard Acoustics - Attenuation of Sound During Propagation Outdoors. The ISO method accounts for reduction in sound level with distance due to geometrical spreading, air absorption, ground

16 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 attenuation and acoustical shielding by intervening structures such as barriers. The assumed sound power levels are listed in the table below. Table VII - Sound Power Level Specifications for Equipment [db re W] Source Octave Band Centre Frequency [Hz] k 2k 4k 8k HVAC unit, 5 Ton Carnes roof exhaust condenser/compressor unit The rooftop units were assumed to be located as per site observations and aerial photography. Four 5 Ton rooftop units, one 3 Ton rooftop unit, 1 exhaust fan and one condenser/compressor unit was assumed on the commercial plaza roof. Sound data for the HVAC units were obtained from HGC Engineering project files and are provided in Table VII. The location of the rooftop units are shown as crosses in the Figures3 5. Since the commercial plaza operates during the daytime and evening hours, a typical worst-case (busiest hour) scenario during the day was considered to be as follows: Assumed daytime worst-case scenario: All equipment operating continuously at full capacity; Assumed night-time worst-case scenario: All A/C equipment operating on a 50% duty cycle; The operating profiles outlined above were assumed in determining the one-hour equivalent sound level, L EQ, for a predictable worst case daytime and nighttime hour at the facades of the proposed residential buildings. Garbage collection and any shipping and receiving taking place will generally occur during the daytime hours. Commercial activities such as the occasional movement of customer vehicles on the

17 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 property, the infrequent delivery of goods to convenience stores, fast food restaurants etc. and garbage collection are not of themselves considered to be significant noise sources in the MOE guidelines. The calculations consider the acoustical effects of distance and shielding by the buildings where applicable. The unmitigated sound levels due to the rooftop mechanical equipment at the closest neighbouring residences are summarized in the following table. Sound level contours are shown in Figures 4 and 5. Table VIII: Predicted Daytime Sound Levels at Residential Receptors [dba], Without Mitigation Receptor Criteria (Day/Night) Daytime Nighttime R1, north façade, of 8-storey building facing Dundas Street 56 / R2, north façade of 8-storey building facing Dundas Street with exposure to Bronte Road 59 / These results indicate that sound levels under a worst case operational scenario may exceed the MOE sound level limits by a minor amount (less than 5 dba) at the closest residential building (R1) to the commercial plaza, during the nighttime hours. Recommendations are provided in the following sections. 4.4 Discussion and Recommendations With Regard to Stationary Noise Sources Physical mitigation options with respect to the commercial plaza are quite limited in this case. With regard to the subject site, the MOE does not accept mechanical ventilation as a mitigation measure for stationary noise sources since the criteria apply outside the residential windows, however, it should be noted that the proposed residential buildings will include central air conditioning so that windows can remain closed. On site mitigation is therefore generally implemented through the provision of property line noise barriers and in this case such barriers are not feasible due to the

18 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 height of the receptors (upper windows). Exterior corridors or glazed solaria are options which could be considered for facades and storeys closest to the rooftop equipment to remove the affected residential windows (living rooms and bedrooms) of the dwelling units as points of reception, but such features are not considered to be feasible in the context of this development and considering the minor nature of the excess. Considering a worst case operational scenario, the Municipality may consider the minor nature of any potential noise excess to be acceptable in this case. The presence of the neighbouring commercial plaza should be addressed through the implementation of warning clauses in the offers of purchase and sale and tenancy agreements for the residential units. A typical wording is Purchasers are advised of the proximity of adjacent commercial plaza, the sound from which may at times be audible. 5 Summary of Recommendations The following recommendations are provided in regard to noise mitigation. 1. The residential buildings should be equipped with central air conditioning systems that will allow the windows to remain closed. The outdoor mechanical equipment associated with the central air conditioning systems for the residential building should comply with the criteria of MOE publication NPC-205, Sound Level Limits for Stationary Sources in Class 1 & 2 Areas (Urban). 2. Any glazing construction meeting the STC ratings presented in Table IV will provide sufficient acoustical insulation for the indoor spaces. 3. A detailed noise study should be conducted for the residential buildings when detailed floor plans and building elevations are available to refine glazing constructions based on actual window to floor area ratios. 4. Warning clauses should be included in the property and tenancy agreements and offers of purchase and sale for the dwelling units in the residential buildings to inform the future

19 Noise Feasibility Study, Proposed Residential Development Page Old Bronte Road, Oakville, Ontario June 15, 2013 owners/occupants of the noise issues and the presence of the roadways and the nearby commercial plaza. The reader is referred to the previous sections of this report where these recommendations are discussed in more detail. 5.1 Implementation To ensure that the noise control recommendations outlined above are fully implemented, it is recommended that: 1. A detailed noise study should be conducted by a Professional Engineer qualified to provide acoustical engineering services in the Province of Ontario when architectural plans (floor plans and elevations) are available to determine and specify the building envelope construction for the buildings, specifically glazing constructions based on actual window to floor area ratios. 2. Prior to the issuance of building permits for this development, a Professional Engineer qualified to perform acoustical services in the Province of Ontario shall review the builder's plans to ensure that the sound control measures as recommended in this report have been incorporated in their entirety.

20 OLD BRONTE ROAD, OAKVILLE SITE

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22 Dundas St R Bldg 1 R Bronte Road Bldg Old Bronte Road FRAME COORDINATES ARE UTM IN METRES Figure 3: Sketch Indicating Location of Rooftop Mechanical Equipment and Residential Receptors

23 Dundas St Bldg R1 R Bronte Road Bldg Old Bronte Road FRAME COORDINATES ARE UTM IN METRES Figure 4: Daytime Sound Level Contours at 7 m in Height

24 Dundas St R1 Bldg R Bronte Road Bldg Old Bronte Road FRAME COORDINATES ARE UTM IN METRES Figure 5: Nighttime Sound Level Contours at 7 m in Height

25 APPENDIX A Supporting Drawings

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28 Owner: New Horizon Development Group Inc. Project Name: Old Bronte - Building #1 Project Location: Old Bronte Road Oakville, Ontario KNY Project #: Building Statistics Date: May 17, 2013 Imperial Building Areas: Sellable Floor Area: 1st Floor 15, ft² 1st Floor 7, ft² 2nd Floor 15, ft² 2nd Floor 13, ft² 3rd Floor 19, ft² 3rd Floor 16, ft² 4rd-7th (each) 19, ft² 4rd-7th (each) 16, ft² 4rd-7th (sum) 76, ft² 4rd-7th (sum) 66, ft² 8th Floor 16, ft² 8th Floor 14, ft² Gross Floor Area 144, ft² Gross Sellable Area: 117, ft² Building Perimeter: 0.00 ft Building Height: 8 Storeys +/ ft Building Suites Number of Units Unit Type Studio 1 Bed 2 Bed Loft 1st Floor Comme 2 1st Floor nd Floor 14 2nd Floor rd Floor 27 3rd Floor rd-7th (each) 27 4rd-7th (each) rd-7th (sum) 108 4rd-7th (sum) th Floor 23 8th Floor Total 174 Total Suite Areas: Suite Type Suite Area Number Suite Type Suite Area Number Unit 'A' 1 Bed ft² 7 Unit 'K' 2 Bed ft² 5 Unit 'B' 1 Bed ft² 12 Unit 'L' 2 Bed ft² 5 Unit 'C' 2 Bed ft² 12 Unit 'U' 2 Bed ft² 1 Unit 'D' 1 Bed ft² 12 Unit 'D' Mod 1 Bed ft² 10 2 Story Lofts Unit 'E' 2 Bed ft² 7 Unit 'M' 2 Bed 1,309.3 ft² 1 Unit 'E' Mod 2 Bed ft² 12 Unit 'N' 2 Bed 1,148.3 ft² 1 Unit 'F' 2 Bed ft² 19 Unit 'O' 2 Bed 1,183.1 ft² 1 Unit 'G' 1 Bed ft² 7 Unit 'P' 2 Bed 1,377.9 ft² 1 Unit 'H' - B.F. 1 Bed + Den ft² 10 Unit 'Q' 2 Bed + Den 1,249.2 ft² 1 Unit 'I' Studio ft² 26 Unit 'R' 2 Bed + Den 1,550.4 ft² 1 Unit 'I' Mod Studio ft² 7 Unit 'S' 2 Bed + Den 1,623.0 ft² 1 Unit 'J' 1 Bed ft² 12 Unit 'T' 2 Bed 1,095.1 ft² 1

29 Owner: New Horizon Development Group Inc. Project Name: Old Bronte - Building #2 Project Location: Old Bronte Road Oakville, Ontario KNY Project #: Building Statistics Date: May 17, 2013 Imperial Building Areas: Sellable Floor Area: 1st Floor 19, ft² 1st Floor 11, ft² 2nd Floor 18, ft² 2nd Floor 15, ft² 3rd-7th (each) 19, ft² 3rd-7th (each) 16, ft² 3rd-7th (sum) 98, ft² 3rd-7th (sum) 84, ft² 8th Floor 17, ft² 8th Floor 14, ft² Gross Floor Area 155, ft² Gross Sellable Area: 127, ft² Building Perimeter: 0.00 ft Building Height: 8 Storeys +/ ft Building Suites Number of Units Unit Type Studio 1 Bed 2 Bed Loft 1st Floor 18 1st Floor nd Floor 26 2nd Floor rd-7th (each) 28 3rd-7th (each) rd-7th (sum) 140 3rd-7th (sum) th Floor 24 8th Floor Total 208 Total Suite Areas: Suite Type Suite Area Number Suite Type Suite Area Number Unit 'A' 1 Bed ft² ft² 0 Unit 'B' 1 Bed ft² ft² 0 Unit 'C' 2 Bed ft² ft² 0 Unit 'D' 1 Bed ft² ft² 0 Unit 'D' Mod 1 Bed ft² ft² 0 Unit 'E' 2 Bed ft² ft² 0 Unit 'E' Mod 2 Bed ft² ft² 0 Unit 'F' 2 Bed ft² ft² 0 Unit 'G' 1 Bed ft² ft² 0 Unit 'H' - B.F. 1 Bed + Den ft² ft² 0 Unit 'I' Studio ft² ft² 0 Unit 'I' Mod Studio ft² ft² 0 Unit 'J' 1 Bed ft² ft² 0 Areas presented are based on current design as of

30 APPENDIX B Traffic Information

31 1 Sheeba Paul 07/03/ :36 AM Sheeba Paul From: Sent: To: Subject: Krusto, Matt February :30 AM Sheeba Paul RE: ultimate road traffic data verification Hi Sheeba, For Dundas, your below information is acceptable. For Bronte Road, the newest information is as follows: Bronte Road: 2011 AADT 29, AADT 45,000 Posted Speed Limit 60 km/h Lanes by Trucks 5% medium, 3% heavy For Old Bronte Road, please contact the Town of Oakville (I don t think the 77,000 is accurate, maybe 7,000 (typo?)). They are doing a review/study for the ultimate design for Old Bronte Road so they should have developed ultimate volumes hopefully. I hope this helps. Matt From: Sheeba Paul [mailto:spaul@hgcengineering.com] Sent: Wednesday, February 13, :53 PM To: Krusto, Matt Subject: RE: ultimate road traffic data verification Hi Matt, HGC Engineering is performing a noise study for a proposed development at 2480 Old Bronte Road, on Oakville, Ontario. A google link is below &spn= , &sll= , &sspn= , &oq=2480+old+bront&t=h&hnear=2480+Old+Bronte+Rd,+Oakville,+Halton+Regi onal+municipality,+ontario&z=17 We would like to request ultimate road traffic volumes for -Dundas Street West (east of Bronte Road) -Bronte Road (south of Dundas Street) and Old Bronte Road. We also need the commercial vehicle percentages, day/night split and speed.

32 2 We have the following numbers in our files. Sheeba Paul 07/03/ :36 AM Bronte Road AADT (ultimate) 35,000 Medium trucks 3% Heavy trucks 5% Number of lanes 4 Posted speed limit 60 kph Day/night split 90/10 Dundas Street AADT (ultimate) 55,000 Medium trucks 8% Heavy trucks 5% Number of lanes 6 Posted speed limit 80 kph Day/night split 90/10 Old Bronte Road/Khalsa Gate AADT (ultimate) 77,000 Medium trucks 2% Heavy trucks 0% Number of lanes 2 Posted speed limit 60 kph Day/night split 90/10 Is this data still applicable? Thank you. Ms. Sheeba Paul, MEng, PEng Senior Engineer, Associate HGC Engineering NOISE VIBRATION ACOUSTICS Howe Gastmeier Chapnik Limited 2000 Argentia Road, Plaza One, Suite 203, Mississauga, Ontario, Canada L5N 1P7 t: e: spaul@hgcengineering.com Visit our new website! Follow Us LinkedIn Twitter YouTube This and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return , delete this and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. This message, including any attachments, is privileged and intended only for the person(s) named above. This material may contain confidential or personal information which may be subject to the provisions of the Municipal Freedom of Information & Protection of Privacy Act. Any other distribution, copying or disclosure is strictly prohibited. If you are not the intended

33 1 Sheeba Paul 07/03/ :35 AM Sheeba Paul From: Sent: To: Subject: Dragana Crkvenjas February :49 PM Sheeba Paul RE: road traffic data verification Sheeba, I think you might have data from when the road was still under regional jurisdiction. Since it was adopted by the Town, we haven t collected any traffic volume data for Old Bronte Road and Khalsa Gate. Thank you, Dragana Crkvenjas Traffic Technician Engineering and Construction Town of Oakville ext.3397 f: Vision: To be the most livable town in Canada Please consider the environment before printing this . From: Sheeba Paul [mailto:spaul@hgcengineering.com] Sent: February :55 AM To: Dragana Crkvenjas; Adam Bell; Dale Lipnicky Subject: re: road traffic data verification Hello HGC Engineering is performing a noise study for a proposed development at 2480 Old Bronte Road, on Oakville, Ontario. A google link is below &spn= , &sll= , &sspn= , &oq=2480+old+bront&t=h&hnear=2480+Old+Bronte+Rd,+Oakville,+Halton+Regi onal+municipality,+ontario&z=17 We would like to request ultimate road traffic volumes for Old Bronte Road. We also need the commercial vehicle percentages, day/night split and speed. We have the following numbers in our files. Old Bronte Road/Khalsa Gate AADT (ultimate) 7,000 Medium trucks 2%

34 2 Heavy trucks 0% Number of lanes 2 Posted speed limit 60 kph Day/night split 90/10 Sheeba Paul 07/03/ :35 AM Is this data still applicable? Thank you. Ms. Sheeba Paul, MEng, PEng Senior Engineer, Associate HGC Engineering NOISE VIBRATION ACOUSTICS Howe Gastmeier Chapnik Limited 2000 Argentia Road, Plaza One, Suite 203, Mississauga, Ontario, Canada L5N 1P7 t: e: spaul@hgcengineering.com Visit our new website! Follow Us LinkedIn Twitter YouTube This and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return , delete this and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal.

35 APPENDIX C Sample STAMSON 5.04 Output

36 Page 1 of 5 [A] STAMSON 5.0 NORMAL REPORT Date: :09:48 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: a.te Time Period: Day/Night 16/8 hours Description: Daytime and nighttime sound levels at prediction location [A], Northwest façade, Building 2 Road data, segment # 1: Bronte N (day/night) -- Car traffic volume : 18630/2070 veh/timeperiod * Medium truck volume : 1013/113 veh/timeperiod * Heavy truck volume : 608/68 veh/timeperiod * Posted speed limit : 60 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) * Refers to calculated road volumes based on the following input: 24 hr Traffic Volume (AADT or SADT): Percentage of Annual Growth : 0.00 Number of Years of Growth : 0.00 Medium Truck % of Total Volume : 5.00 Heavy Truck % of Total Volume : 3.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: Bronte N (day/night) Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 1 (Absorptive ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 3 (Elevated; no barrier) Elevation : m Reference angle : 0.00 Road data, segment # 2: Bronte S (day/night) -- Car traffic volume : 18630/2070 veh/timeperiod * Medium truck volume : 1013/113 veh/timeperiod * Heavy truck volume : 608/68 veh/timeperiod * Posted speed limit : 60 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) * Refers to calculated road volumes based on the following input: 24 hr Traffic Volume (AADT or SADT): Percentage of Annual Growth : 0.00 Number of Years of Growth : 0.00 Medium Truck % of Total Volume : 5.00 Heavy Truck % of Total Volume : 3.00 Day (16 hrs) % of Total Volume : 90.00

37 Page 2 of 5 [A] Data for Segment # 2: Bronte S (day/night) Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 1 (Absorptive ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 3 (Elevated; no barrier) Elevation : m Reference angle : 0.00 Road data, segment # 3: Dundas E (day/night) -- Car traffic volume : 21533/2393 veh/timeperiod * Medium truck volume : 1980/220 veh/timeperiod * Heavy truck volume : 1238/138 veh/timeperiod * Posted speed limit : 80 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) * Refers to calculated road volumes based on the following input: 24 hr Traffic Volume (AADT or SADT): Percentage of Annual Growth : 0.00 Number of Years of Growth : 0.00 Medium Truck % of Total Volume : 8.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 3: Dundas E (day/night) Angle1 Angle2 : deg 0.00 deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 1 (Absorptive ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 3 (Elevated; no barrier) Elevation : m Reference angle : 0.00 Road data, segment # 4: Dundas W (day/night) -- Car traffic volume : 21533/2393 veh/timeperiod * Medium truck volume : 1980/220 veh/timeperiod * Heavy truck volume : 1238/138 veh/timeperiod * Posted speed limit : 80 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) * Refers to calculated road volumes based on the following input:

38 Page 3 of 5 [A] 24 hr Traffic Volume (AADT or SADT): Percentage of Annual Growth : 0.00 Number of Years of Growth : 0.00 Medium Truck % of Total Volume : 8.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 4: Dundas W (day/night) Angle1 Angle2 : deg 0.00 deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 1 (Absorptive ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 3 (Elevated; no barrier) Elevation : m Reference angle : 0.00 Results segment # 1: Bronte N (day) -- Source height = 1.32 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba Results segment # 2: Bronte S (day) -- Source height = 1.32 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba

39 Page 4 of 5 [A] Results segment # 3: Dundas E (day) -- Source height = 1.50 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba Results segment # 4: Dundas W (day) -- Source height = 1.50 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba Total Leq All Segments: dba Results segment # 1: Bronte N (night) - Source height = 1.32 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba

40 Page 5 of 5 [A] Results segment # 2: Bronte S (night) - Source height = 1.32 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba Results segment # 3: Dundas E (night) - Source height = 1.50 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba Results segment # 4: Dundas W (night) - Source height = 1.50 m ROAD ( ) = dba Angle1 Angle2 Alpha RefLeq P.Adj D.Adj F.Adj W.Adj H.Adj B.Adj SubLeq Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES (DAY): (NIGHT): 65.35

41 Page 1 of 5 [B] STAMSON 5.0 COMPREHENSIVE REPORT Date: :10:00 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: b.te Time Period: Day/Night 16/8 hours Description: Daytime and nighttime sound levels at prediction location [B], North façade, Building 2 Road data, segment # 1: Bronte N (day/night) -- Car traffic volume : 18630/2070 veh/timeperiod * Medium truck volume : 1013/113 veh/timeperiod * Heavy truck volume : 608/68 veh/timeperiod * Posted speed limit : 60 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) * Refers to calculated road volumes based on the following input: 24 hr Traffic Volume (AADT or SADT): Percentage of Annual Growth : 0.00 Number of Years of Growth : 0.00 Medium Truck % of Total Volume : 5.00 Heavy Truck % of Total Volume : 3.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: Bronte N (day/night) Angle1 Angle2 : 0.00 deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 1 (Absorptive ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 3 (Elevated; no barrier) Elevation : m Reference angle : 0.00 Road data, segment # 2: Bronte S (day/night) -- Car traffic volume : 18630/2070 veh/timeperiod * Medium truck volume : 1013/113 veh/timeperiod * Heavy truck volume : 608/68 veh/timeperiod * Posted speed limit : 60 km/h Road gradient : 0 % Road pavement : 1 (Typical asphalt or concrete) * Refers to calculated road volumes based on the following input: 24 hr Traffic Volume (AADT or SADT): Percentage of Annual Growth : 0.00 Number of Years of Growth : 0.00 Medium Truck % of Total Volume : 5.00 Heavy Truck % of Total Volume : 3.00 Day (16 hrs) % of Total Volume : 90.00