Environmental Noise Assessment. St-Charles Market. Ottawa, Ontario

Transcription

1 Environmental Noise Assessment St-Charles Market Ottawa, Ontario REPORT: GWE Noise Prepared For: Jenna Maw LineBox Studio Inc. 126 York Street, Suite 502 Ottawa, Ontario K1N 5T2 Prepared By: Michael Lafortune, Environmental Technologist Joshua Foster, P.Eng., Partner Vincent Ferraro, M.Eng., P.Eng., Managing Partner December 11, Walgreen Road, Ottawa, Ontario K0A 1L0 T (613)

2 EXECUTIVE SUMMARY This document describes an environmental noise assessment performed for a proposed mixed-use development titled St-Charles Market in Ottawa, Ontario. The C-shape eight-storey building will rise approximately 25 metres above local grade. Figure 1 illustrates a site plan with surrounding context. The major source of roadway noise affecting the development is traffic along Beechwood Avenue. The assessment is based on: (i) theoretical noise prediction methods that conform to the Ministry of the Environment (MOE) and City of Ottawa requirements; (ii) noise level criteria as specified by the City of Ottawa s Environmental Noise Control Guidelines (ENCG); (iii) future vehicular traffic volumes based on the City of Ottawa s Official Plan roadway classifications; and (iv) architectural drawings received from LineBox Studio Inc. The results of the current analysis indicate that noise levels will range between 47 and 73 dba during the daytime period (07:00-23:00) and between 39 and 65 dba during the nighttime period (23:00-07:00). The highest noise level (i.e. 73 dba) occurs on the east wing north façade, which is nearest and most exposed to Beechwood Avenue. Minimum building construction in all areas is required to satisfy the Ontario Building Code (2012). In addition, Sound Transmission Class (STC) ratings are required for building components where noise levels exceed 65 dba (see Figure 4 to 6). Results of the calculations also indicate that all units will require central air conditioning (or similar mechanical system), which will allow occupants to keep windows closed and maintain a comfortable living environment. A Warning Clause (Type D 1 ) will also be required be placed on all Lease, Purchase and Sale Agreements. Noise levels at the 7 th floor common terraces are expected to approach 61 and 62 dba during the daytime period (Receptors 21 and 22 respectively). According to the ENCG, if these terraces are to be used as outdoor living areas, noise control measures (barriers) are required to reduce the L EQ to below 60 dba and as close to 55 dba as technically, economically and administratively feasible. Investigation into the application of a 1.1 metre (m) noise mitigating guard rail surrounding the terraces proved that noise levels can be reduced to 56 and 58 dba, as illustrated in Figure 7. Although noise levels at the terrace remain 1 City of Ottawa Environmental Noise Control Guidelines, SS Wilson Associates, May 10, 2006 Environmental Noise Assessment i

3 elevated, any inclusion of a noise barrier with a height greater than 1.1 m would negatively impact the terraces architecturally. Therefore it is not feasible to reduce the noise levels to below 55 dba. As mitigated noise levels are above 55 dba, a Warning Clause (Type B 2 ) is required. Noise levels from the existing stationary sources are expected to fall below ambient noise levels during most periods of the day and marginally exceed ambient noise levels when deliveries at the adjacent commercial building occur. However occasional deliveries are excluded from the sound level criteria as per the ENCG. Because we have already recommended upgraded building components and the use of central air conditioning for the developments eastern façade to control traffic noise levels, stationary noise impacts are expected to be negligible. Due to the presence of existing stationary noise in the area, a Warning Clause (Type E 3 ) will be required for all units on Agreements of Lease, Purchase and Sale. 2 City of Ottawa Environmental Noise Control Guidelines, SS Wilson Associates, May 10, ibid Environmental Noise Assessment ii

4 TABLE OF CONTENTS PAGE 1. INTRODUCTION 1 2. TERMS OF REFERENCE 1 3. OBJECTIVES 2 4. METHODOLOGY Background Roadway Traffic Noise Criteria for Roadway Traffic Noise Roadway Traffic Volumes Theoretical Roadway Noise Predictions Indoor Noise Calculations Qualitative Stationary Noise 7 5. RESULTS AND DISCUSSION Roadway Noise Levels Noise Control Measures for Transportation Sources Noise Barrier Calculation Stationary Noise Levels CONCLUSIONS AND RECOMMENDATIONS 12 FIGURES APPENDICES: Appendix A STAMSON 5.04 Input and Output Data (Roadway Traffic Noise) Appendix B STAMSON 5.04 Input and Output Data (Barrier Calculation) Environmental Noise Assessment iii

5 1. INTRODUCTION Gradient Wind Engineering Inc. (GWE) was retained by LineBox Studio Inc. to undertake an environmental noise study of a proposed mixed-use development titled St-Charles Market in Ottawa, Ontario. This report summarizes the methodology, results and recommendations related to an environmental noise assessment. GWE s scope of work involved assessing exterior and interior noise levels generated by local roadway traffic as well as providing a qualitative assessment of stationary noise impacts. The assessment was performed on the basis of theoretical noise calculation methods conforming to the City of Ottawa 4 and Ministry of the Environment 5 guidelines. Noise calculations were based on architectural drawings received from LineBox Studio Inc., with future traffic volumes corresponding to the City of Ottawa s Official Plan (OP) roadway classifications. 2. TERMS OF REFERENCE The focus of this environmental noise assessment is a proposed development consisting of an L-shaped eight-storey building surrounding the existing St. Charles Church. The development is located on the southeast corner of the St. Charles Street & Beechwood Avenue intersection. The major source of roadway noise is Beechwood Avenue. The site is surrounded on all sides with mixed-use land, specifically Residential and Traditional Mainstreet zones. Figure 1 illustrates a complete site plan with surrounding context. Upon completion, the development will rise approximately 25 metres (m) above local grade. The ground floor and 2 nd floor will house commercial, common and residential space, while the remaining floors will occupy residential and common space only. Two outdoor living areas (OLA s) are considered on site, specifically at the east and west 7 th -floor common terraces. 4 City of Ottawa Environmental Noise Control Guidelines, SS Wilson Associates, May 10, Ministry of the Environment Publication NPC-300 Environmental Noise Assessment 1

6 3. OBJECTIVES The main goals of this work are to: (i) calculate the future noise levels on the study building produced by local roadway traffic, (ii) ensure that interior noise levels do not exceed the allowable limits specified by the City of Ottawa s Environmental Noise Control Guidelines as outlined in Section 4 of this report. 4. METHODOLOGY 4.1 Background Noise can be defined as any obtrusive sound. It is created at a source, transmitted through a medium, such as air, and intercepted by a receiver. Noise may be characterized in terms of the power of the source or the sound pressure at a specific distance. While the power of a source is characteristic of that particular source, the sound pressure depends on the location of the receiver and the path that the noise takes to reach the receiver. Measurement of noise is based on the decibel unit, dba, which is a logarithmic ratio referenced to a standard noise level ( Pascals). The A suffix refers to a weighting scale, which better represents how the noise is perceived by the human ear. With this scale, a doubling of power results in a 3 dba increase in measured noise levels and is just perceptible to most people. An increase of 10 dba is often perceived to be twice as loud. 4.2 Roadway Traffic Noise Criteria for Roadway Traffic Noise For vehicle traffic, the equivalent sound energy level, L EQ, provides a measure of the time varying noise levels, which is well correlated with the annoyance of sound. It is defined as the continuous sound level, which has the same energy as a time varying noise level over a period of time. For roadways, the L EQ is commonly calculated on the basis of a 16-hour (L EQ16) daytime (07:00-23:00) / 8-hour (L EQ8) nighttime (23:00-07:00) split to assess its impact on residential buildings. The City of Ottawa s Environmental Noise Control Guidelines (ENCG) specifies that the recommended indoor noise limits (that are relevant to this study) are 40, 45 and 50 dba for residence sleeping quarters, living rooms and retail spaces respectively, as listed in Table 1. Based on GWE s experience, more comfortable indoor noise levels should be targeted toward 37, 42 and 47 dba to control peak noise, and deficiencies in building envelope construction. Environmental Noise Assessment 2

7 TABLE 1: INDOOR SOUND LEVEL CRITERIA (ROAD & RAIL) 6 Type of Space Time Period Road L EQ (dba) General offices, reception areas, retail stores, etc. 07:00 23: Living/dining/den areas of residences, hospitals, schools, nursing/retirement homes, day-care centres, theatres, places of worship, libraries, individual or semi-private offices, conference rooms, etc. Rail 07:00 23: Sleeping quarters of hotels/motels 23:00 07: Sleeping quarters of residences, hospitals, nursing/retirement homes, etc. 23:00 07: Predicted noise levels at the plane of window (POW) and outdoor living area (OLA) dictate the action required to achieve the recommended sound levels. When noise levels at these areas exceed the criteria outlined in Table 2, specific outdoor, ventilation and Warning Clause requirements may apply. In addition, when noise levels exceed the criteria outlined in Table 3, upgraded building components must be designed. 6 Adapted from ENCG Table 1.6 Environmental Noise Assessment 3

8 TABLE 2: ROAD & RAIL NOISE COMBINED OUTDOOR NOISE, VENTILATION AND WARNING CLAUSE REQUIREMENTS 7 Time Period L EQ (dba) Ventilation Requirements Outdoor Noise Control Measures Warning Clause Outdoor Living Area (OLA) L EQ(16hr) < 55 N/A Not required Not required Daytime (07:00 23:00) 55 < L EQ(16hr) 60 L EQ(16hr) > 60 N/A N/A May not be required but should be considered Required to reduce the L EQ to below 60 dba and as close to 55 dba where feasible Type A Type B Plane of Window (POW) L EQ(16hr) < 55 Not required N/A Not required Daytime (07:00 23:00) 55 < L EQ(16hr) 65 Forced air heating with provision for central air conditioning N/A Type C L EQ(16hr) > 65 Central air conditioning N/A Type D L EQ(8hr) < 50 Not required N/A Not required Nighttime (23:00 07:00) 50 < L EQ(8hr) 60 Forced air heating with provision for central air conditioning N/A Type C L EQ(8hr) > 60 Central air conditioning N/A Type D - Required if resultant L EQ exceeds 55 dba - Required if resultant L EQ exceeds 55 dba and if it is administratively, economically and/or technically feasible TABLE 3: ROAD & RAIL NOISE BUILDING COMPONENT REQUIREMENTS 8 Source L EQ (dba) Building Component Requirements Road Rail L EQ(16hr) > 65 (Daytime) L EQ(8hr) > 60 (Nighttime) L EQ(16hr) > 60 (Daytime) L EQ(8hr) > 55(Nighttime) Building components (walls, windows, etc.) must be designed to achieve indoor sound level criteria 7 Adapted from ENCG Table Adapted from ENCG Table 1.8 Environmental Noise Assessment 4

9 4.2.2 Roadway Traffic Volumes The ENCG dictates that noise calculations should consider future sound levels based on a roadway s classification at the mature state of development. Therefore, traffic volumes are based on the roadway classifications outlined in the City of Ottawa s Official Plan (OP) and Transportation Master Plan 9 which provides additional details on future roadway expansions. Average Annual Daily Traffic (AADT) volumes are then based on data in Table 1.7 of the ENCG for each roadway classification. Table 4 (below) summarizes the AADT values used for each roadway included in this assessment. In the absence of an available posted speed limit for Beechwood Avenue, we have assumed one based on the type of roadway. TABLE 4: ROADWAY TRAFFIC DATA Roadway Roadway Class Speed Limit (km/h) Official Plan AADT Beechwood Avenue 4-UAU 60 30, Theoretical Roadway Noise Predictions Noise predictions were performed with the aid of the Ministry of the Environment (MOE) computerized noise assessment program, STAMSON 5.04, for road and rail analysis. Appendix A includes the STAMSON 5.04 input and output data. Roadway noise calculations were performed by treating each road segment as separate line sources of noise, and by using existing building locations as noise barriers. In addition to the traffic volumes summarized in Table 4, theoretical noise predictions were based on the following parameters: 9 City of Ottawa Transportation Master Plan, November 2013 Environmental Noise Assessment 5

10 Truck traffic on all roadways was taken to comprise 5% heavy trucks and 7% medium trucks, as per ENCG requirements for noise level predictions The day/night split was taken to be 92% / 8% respectively for all streets Absorptive and reflective intermediate ground surfaces based on specific source-receiver path ground characteristics The study site was treated as having flat topography Noise receptors were strategically placed at 22 locations around the study area (see Figures 2 and 3). 4.3 Indoor Noise Calculations The difference between outdoor and indoor noise levels is the noise attenuation provided by the building envelope. According to common industry practice, complete walls and individual wall elements are rated according to the Sound Transmission Class (STC). The STC ratings of common residential walls built in conformance with the Ontario Building Code (2012) typically exceed STC 35, depending on exterior cladding, thickness and interior finish details. For example, brick veneered walls can achieve STC 55. Standard good quality double-glazed non-operable windows can have STC ratings ranging from 25 to 40 depending on the window manufacturer, pane thickness and inter-pane spacing. As previously mentioned, the windows are the known weak point in a partition. According to the ENCG, when daytime noise levels (from road and rail sources) at the plane of the window exceed 65 dba, calculations must be performed to evaluate the sound transmission quality of the building components to ensure acceptable indoor noise levels. The calculation procedure 10 considers: Window type and total area as a percentage of total room floor area Exterior wall type and total area as a percentage of the total room floor area Acoustic absorption characteristics of the room Outdoor noise source type and approach geometry Indoor sound level criteria, which varies according to the intended use of a space 10 Building Practice Note: Controlling Sound Transmission into Buildings by J.D. Quirt, National Research Council of Canada, September 1985 Environmental Noise Assessment 6

11 Based on published research 11, exterior walls possess specific sound attenuation characteristics that are used as a basis for calculating the required STC ratings of windows in the same partition. Due to the limited information available at the time of the study, which was prepared for site plan approval, detailed floor layouts and building elevations have not been finalized; therefore, detailed STC calculations could not be performed at this time. As a guideline, the anticipated STC requirements for windows have been estimated based on the overall noise reduction required for each intended use of space (STC = outdoor noise level targeted indoor noise levels). A review of window supplier literature indicates that the specified STC ratings can be achieved by a variety of window systems having a combination of glass thickness and inter-pane spacing. We have not specified any particular window configurations, as there are several manufacturers and various combinations of window components that will offer the necessary sound attenuation rating. However, it is the responsibility of the manufacturer to ensure that the specified window achieves the required STC. This can only be assured by using window configurations that have been certified by laboratory testing. The requirements for STC ratings assume that the remaining components of the building are constructed and installed according to the minimum standards of the Ontario Building Code. The specified STC requirements also apply to swinging and/or sliding patio doors. All specified building components will require review by a qualified acoustical engineer for conformance to the recommendations of this report prior to building permit application. 4.4 Qualitative Stationary Noise The Ontario Ministry of the Environment has published the D-series guidelines to assist planners and municipalities in the planning process to minimize the impacts industrial facilities and sensitive land uses will have on one another. In the document D-6 Compatibility between industrial facilities and sensitive land uses 12 general areas of influence and minimum separation distance are recommended to minimize the potential for incompatible land uses creating an adverse effect on sensitive land use. Under the guidelines, industrial facilities are characterized into three categories depending on their size and potential output of noise, odour, dust and / or vibration. Sensitive land use under the guideline can include land uses such as residential, parks, schools, childcare facilities, senior citizens residences, hospitals, churches and other places of worship. 11 CMHC, Road & Rail Noise: Effects on Housing 12 MOE Guideline D-6, Environmental Planning & Analysis Branch, July 1995 Environmental Noise Assessment 7

12 There are no industrial facilities within the recommended minimum separation distance from the study area. The D-6 guideline allows for development within the influence zone in cases of infill, provided the appropriate studies are conducted to ensure the potential for an adverse effect is minimized. Several commercial buildings are along Beechwood Avenue and include retail outlets and restaurants. Although they are not industrial facilities under the D-6 guideline, they could be considered a Class I industry, where a recommended minimum separation distance from sensitive land uses is 20 m and the potential influence zone is 70 m. Commercial facilities that are within 70 m of the development include a dentistry clinic and a fast-food restaurant at 170 Beechwood Avenue. Based on our assessment, the only significant existing stationary source in the area is the mechanical equipment on the roof of the adjacent dentistry clinic and a fast-food restaurant as well as potential truck activity in the alleyway between the development and adjacent commercial building. 5. RESULTS AND DISCUSSION 5.1 Roadway Noise Levels Appendix A contains the complete set of input and output data from all STAMSON 5.04 calculations. The results of the roadway noise calculations are summarized in Table 5. Environmental Noise Assessment 8

13 Receptor Number TABLE 5: EXTERIOR NOISE LEVELS DUE TO ROAD TRAFFIC Plane of Window Receptor Location Noise Level (dba) Day Night 1 POW Ground Level East Wing North Façade POW Ground Level East Wing East Façade POW Ground Level East Wing South Façade POW Ground Level West Wing West Façade POW Ground Level West Wing North Façade POW Ground Level West Wing East Façade POW Ground Level North Façade POW Ground Level East Wing West Façade POW 6 th Floor East Wing North Façade POW 6 th Floor East Wing East Façade POW 6 th Floor East Wing South Façade POW 6 th Floor West Wing West Façade POW 6 th Floor West Wing North Façade POW 6 th Floor West Wing East Façade POW 6 th Floor North Façade POW 6 th Floor East Wing West Façade POW 7 th Floor West Wing North Façade POW 8 th Floor East Wing North Façade POW 8 th Floor West Wing West Façade POW 8 th Floor East Wing West Façade OLA 7 th Floor West Wing Terrace OLA 7 th Floor East Wing Terrace The results of the current analysis indicate that noise levels will range between 47 and 73 dba during the daytime period (07:00-23:00) and between 39 and 65 dba during the nighttime period (23:00-07:00). The highest noise level (i.e. 73 dba) occurs on the east wing north façade, which is nearest and most exposed to Beechwood Avenue. Environmental Noise Assessment 9

14 5.2 Noise Control Measures for Transportation Sources The noise levels predicted due to road traffic exceed the criteria listed in the ENCG for building components. As discussed in Section 4.3, the anticipated STC requirements for windows have been estimated based on the overall noise reduction required for each intended use of space (STC = outdoor noise level targeted indoor noise levels). As per city of Ottawa requirements, detailed STC calculations will be required to be completed prior to building permit application for each unit type. The STC requirements for the windows are summarized below for various units within the development (see Figure 4 to 6): Bedroom Windows (i) Bedroom windows facing north on the east wing will require a minimum STC of 36 (ii) Bedroom windows facing east on the east wing will require a minimum STC of 32 (iii) Bedroom windows facing west on the east wing will require a minimum STC of 31 (iv) Bedroom windows facing north on the west wing will require a minimum STC of 30 (v) All other bedroom windows are to satisfy Ontario Building Code (OBC 2012) requirements Living Room Windows (i) Living room windows facing north on the east wing will require a minimum STC of 31 (ii) Living room windows facing east on the east wing will require a minimum STC of 27 (iii) Living room windows facing west on the east wing will require a minimum STC of 26 (iv) Living room windows facing north on the west wing will require a minimum STC of 25 (v) All other living room windows are to satisfy Ontario Building Code (OBC 2012) requirements Retail Windows (i) Retail windows facing north on the east wing will require a minimum STC of 26 (ii) Retail windows facing east on the east wing will require a minimum STC of 22 (iii) Retail windows facing west on the east wing will require a minimum STC of 21 (iv) Retail windows facing north on the west wing will require a minimum STC of 20 (v) All other retail windows are to satisfy Ontario Building Code (OBC 2012) requirements Environmental Noise Assessment 10

15 (i) Exterior Walls Exterior wall components on the aforementioned façades require a minimum STC of 45 which will be achieved with brick cladding or an acoustical equivalent according to NRC test data 13 Results of the calculations also indicate that all units will require central air conditioning (or similar mechanical system), which will allow occupants to keep windows closed and maintain a comfortable living environment. A Warning Clause (Type D) will also be required be placed on all Lease, Purchase and Sale Agreements. 5.3 Noise Barrier Calculation Noise levels at the 7 th floor common terraces are expected to approach 61 and 62 dba during the daytime period (Receptor 21 and 22 respectively). According to the ENCG, if these terraces are to be used as outdoor living areas, noise control measures (barriers) are required to reduce the L EQ to below 60 dba and as close to 55 dba as technically, economically and administratively feasible. Investigation into the application of a 1.1 m noise mitigating guardrail surrounding the terraces proved that noise levels can be reduced to 56 and 58 dba, as illustrated in Figure 7. Although noise levels at the terrace remain elevated, any inclusion of a noise barrier with a height greater than 1.1 m would negatively impact the terraces architecturally. Therefore it is not feasible to reduce the noise levels to below 55 dba. As mitigated noise levels are above 55 dba, a Warning Clause (Type B) is required. Table 6 summarizes the results of the barrier investigations at the 7 th floor terraces. TABLE 6: RESULTS OF BARRIER INVESTIGATION Location 7 th Floor Common Terrace West 7 th Floor Common Terrace East Reference Receptors Barrier Height (m) Daytime L EQ Noise Levels (dba) Without With Barrier Barrier J.S. Bradley and J.A. Birta. Laboratory Measurements of the Sound Insulation of Building Façade Elements, National Research Council October Environmental Noise Assessment 11

16 5.4 Stationary Noise Levels Based on our experience of similar retail buildings, impacts from the adjacent commercial building at 170 Beechwood Avenue are expected to be below ambient noise levels produced by roadway traffic. During deliveries, the noise levels from trucks may marginally exceed ambient noise levels. However, the ENCG excludes occasional deliveries from the sound level criteria. Furthermore, because we have already recommended upgraded building components and the use of central air conditioning for the developments eastern façade to control traffic noise levels, noise impacts are expected to be negligible. 6. CONCLUSIONS AND RECOMMENDATIONS The results of the current analysis indicate that noise levels will range between 47 and 73 dba during the daytime period (07:00-23:00) and between 39 and 65 dba during the nighttime period (23:00-07:00). The highest noise level (i.e. 73 dba) occurs on the east wing north façade, which is nearest and most exposed to Beechwood Avenue. Minimum building construction in all areas is required to satisfy the Ontario Building Code (2012). In addition, Sound Transmission Class (STC) ratings are required for building components where noise levels exceed 65 dba (see Figures 4 to 6). In addition to upgraded windows, the installation of central air conditioning (or similar mechanical system) will be required for all units. The following Warning Clause (Type D 14 ) in all Agreements of Lease, Purchase and Sale will be required: Dwelling units in this building have been supplied with central air conditioning which will allow windows and exterior doors to remain closed, thereby ensuring that the indoor sound levels are within the City of Ottawa s and the Ministry of the Environment s noise criteria. Noise levels at the 7 th floor common terraces are expected to approach 61 and 62 dba during the daytime period (Receptor 21 and 22 respectively). According to the ENCG, if these terraces are to be used as outdoor living areas, noise control measures (barriers) are required to reduce the L EQ to below 60 dba and as close to 55 dba as technically, economically and administratively feasible. Investigation into the application of a 1.1 m noise mitigating guard rail surrounding the terraces proved that noise levels can be 14 City of Ottawa Environmental Noise Control Guidelines, SS Wilson Associates, May 10, 2006 Environmental Noise Assessment 12

17 reduced to 56 and 58 dba, as illustrated in Figure 7. Although noise levels at the terrace remain elevated, any inclusion of a noise barrier with a height greater than 1.1 m would negatively impact the terraces architecturally. Therefore it is not feasible to reduce the noise levels to below 55 dba. As mitigated noise levels are above 55 dba, a Warning Clause (Type B 15 ) is required: 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 the Environment s noise criteria. Noise levels from the existing stationary sources are expected to fall below ambient noise levels during most periods of the day and marginally exceed ambient noise levels when deliveries at the adjacent commercial building occur. However, occasional deliveries are excluded from the sound level criteria as per the ENCG. Because we have already recommended upgraded building components and the use of central air conditioning for the developments eastern façade to control traffic noise levels, noise impacts are expected to be negligible. Due to the presence of existing stationary noise in the area, a Warning Clause (Type E 16 ) will be required for all units on Agreements of Lease, Purchase and Sale as outlined below: Purchasers/ tenants are advised that due to the proximity of the adjacent commercial facilities, noise from the commercial facilities may at times be audible Additionally, the following restrictive covenant shall also be included in all Agreements of Lease, Purchase and Sale: The Transferee covenants with the Transferor that the above clause, verbatim, shall be included in all subsequent Agreements of Purchase and Sale and deeds conveying the lands described herein, which shall run with the said lands and is for the benefit of the subsequent owners of the said lands and the owner of the adjacent road. 15 City of Ottawa Environmental Noise Control Guidelines, SS Wilson Associates, May 10, ibid Environmental Noise Assessment 13

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26 APPENDIX A STAMSON INPUT AND OUTPUT DATA (ROADWAY TRAFFIC NOISE) Environmental Noise Assessment A 1

27 STAMSON 5.0 NORMAL REPORT Date: :09:22 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: r1.te Description: Time Period: Day/Night 16/8 hours Road data, segment # 1: Beech (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: Beech (day/night) --- Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 0.00 Environmental Noise Assessment A 2

28 Results segment # 1: Beech (day) ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba Results segment # 1: Beech (night) ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES (DAY): (NIGHT): Environmental Noise Assessment A 3

29 STAMSON 5.0 NORMAL REPORT Date: :10:53 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: r2.te Description: Time Period: Day/Night 16/8 hours Road data, segment # 1: Beech (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: Beech (day/night) --- Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 2 (Flat/gentle slope; with barrier) Barrier angle1 : deg Angle2 : deg Barrier height : 5.00 m Barrier receiver distance : 3.00 / 3.00 m Source elevation : 0.00 m Receiver elevation : 0.00 m Barrier elevation : 0.00 m Reference angle : 0.00 Environmental Noise Assessment A 4

30 Results segment # 1: Beech (day) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba Environmental Noise Assessment A 5

31 Results segment # 1: Beech (night) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES (DAY): (NIGHT): Environmental Noise Assessment A 6

32 STAMSON 5.0 NORMAL REPORT Date: :11:42 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: r3.te Description: Time Period: Day/Night 16/8 hours Road data, segment # 1: Beech (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: Beech (day/night) --- Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 2 (Flat/gentle slope; with barrier) Barrier angle1 : deg Angle2 : deg Barrier height : m Barrier receiver distance : 1.00 / 1.00 m Source elevation : 0.00 m Receiver elevation : 0.00 m Barrier elevation : 0.00 m Reference angle : 0.00 Environmental Noise Assessment A 7

33 Results segment # 1: Beech (day) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba Results segment # 1: Beech (night) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES (DAY): (NIGHT): Environmental Noise Assessment A 8

34 STAMSON 5.0 NORMAL REPORT Date: :11:56 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: r4.te Description: Time Period: Day/Night 16/8 hours Road data, segment # 1: BeechL (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: BeechL (day/night) ---- Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 2 (Flat/gentle slope; with barrier) Barrier angle1 : deg Angle2 : deg Barrier height : 8.00 m Barrier receiver distance : / m Source elevation : 0.00 m Receiver elevation : 0.00 m Barrier elevation : 0.00 m Reference angle : 0.00 Environmental Noise Assessment A 9

35 Road data, segment # 2: BeechR (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 2: BeechR (day/night) ---- Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 0.00 Environmental Noise Assessment A 10

36 Results segment # 1: BeechL (day) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Results segment # 2: BeechR (day) ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba Environmental Noise Assessment A 11

37 Results segment # 1: BeechL (night) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Results segment # 2: BeechR (night) ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES (DAY): (NIGHT): Environmental Noise Assessment A 12

38 STAMSON 5.0 NORMAL REPORT Date: :12:04 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: r5.te Description: Time Period: Day/Night 16/8 hours Road data, segment # 1: BeechL (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: BeechL (day/night) ---- Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 2 (Flat/gentle slope; with barrier) Barrier angle1 : deg Angle2 : deg Barrier height : 8.00 m Barrier receiver distance : / m Source elevation : 0.00 m Receiver elevation : 0.00 m Barrier elevation : 0.00 m Reference angle : 0.00 Environmental Noise Assessment A 13

39 Road data, segment # 2: BeechR (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 2: BeechR (day/night) ---- Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 2 (Flat/gentle slope; with barrier) Barrier angle1 : deg Angle2 : deg Barrier height : m Barrier receiver distance : / m Source elevation : 0.00 m Receiver elevation : 0.00 m Barrier elevation : 0.00 m Reference angle : 0.00 Environmental Noise Assessment A 14

40 Results segment # 1: BeechL (day) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Results segment # 2: BeechR (day) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba Environmental Noise Assessment A 15

41 Results segment # 1: BeechL (night) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Environmental Noise Assessment A 16

42 Results segment # 2: BeechR (night) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES (DAY): (NIGHT): Environmental Noise Assessment A 17

43 STAMSON 5.0 NORMAL REPORT Date: :12:12 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: r6.te Description: Time Period: Day/Night 16/8 hours Road data, segment # 1: Beech (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: Beech (day/night) --- Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 2 (Flat/gentle slope; with barrier) Barrier angle1 : deg Angle2 : deg Barrier height : m Barrier receiver distance : / m Source elevation : 0.00 m Receiver elevation : 0.00 m Barrier elevation : 0.00 m Reference angle : 0.00 Environmental Noise Assessment A 18

44 Results segment # 1: Beech (day) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba Environmental Noise Assessment A 19

45 Results segment # 1: Beech (night) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES (DAY): (NIGHT): Environmental Noise Assessment A 20

46 STAMSON 5.0 NORMAL REPORT Date: :12:19 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: r7.te Description: Time Period: Day/Night 16/8 hours Road data, segment # 1: BeechL (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: BeechL (day/night) ---- Angle1 Angle2 : deg 0.00 deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 2 (Flat/gentle slope; with barrier) Barrier angle1 : deg Angle2 : deg Barrier height : m Barrier receiver distance : 4.00 / 4.00 m Source elevation : 0.00 m Receiver elevation : 0.00 m Barrier elevation : 0.00 m Reference angle : 0.00 Environmental Noise Assessment A 21

47 Road data, segment # 2: BeechR (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 2: BeechR (day/night) ---- Angle1 Angle2 : 0.00 deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 2 (Flat/gentle slope; with barrier) Barrier angle1 : 0.00 deg Angle2 : deg Barrier height : m Barrier receiver distance : / m Source elevation : 0.00 m Receiver elevation : 0.00 m Barrier elevation : 0.00 m Reference angle : 0.00 Environmental Noise Assessment A 22

48 Results segment # 1: BeechL (day) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Results segment # 2: BeechR (day) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba Environmental Noise Assessment A 23

49 Results segment # 1: BeechL (night) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Results segment # 2: BeechR (night) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES (DAY): (NIGHT): Environmental Noise Assessment A 24

50 STAMSON 5.0 NORMAL REPORT Date: :12:26 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: r8.te Description: Time Period: Day/Night 16/8 hours Road data, segment # 1: Beech (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: Beech (day/night) --- Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : 1.50 / 1.50 m Topography : 2 (Flat/gentle slope; with barrier) Barrier angle1 : deg Angle2 : deg Barrier height : m Barrier receiver distance : 2.00 / 2.00 m Source elevation : 0.00 m Receiver elevation : 0.00 m Barrier elevation : 0.00 m Reference angle : 0.00 Environmental Noise Assessment A 25

51 Results segment # 1: Beech (day) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba Environmental Noise Assessment A 26

52 Results segment # 1: Beech (night) ! 1.50! 1.50! 1.50 ROAD ( ) = dba Segment Leq : dba Total Leq All Segments: dba TOTAL Leq FROM ALL SOURCES (DAY): (NIGHT): Environmental Noise Assessment A 27

53 STAMSON 5.0 NORMAL REPORT Date: :12:32 MINISTRY OF ENVIRONMENT AND ENERGY / NOISE ASSESSMENT Filename: r9.te Description: Time Period: Day/Night 16/8 hours Road data, segment # 1: Beech (day/night) Car traffic volume : 24288/2112 veh/timeperiod * Medium truck volume : 1932/168 veh/timeperiod * Heavy truck volume : 1380/120 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 : 7.00 Heavy Truck % of Total Volume : 5.00 Day (16 hrs) % of Total Volume : Data for Segment # 1: Beech (day/night) --- Angle1 Angle2 : deg deg Wood depth : 0 (No woods.) No of house rows : 0 / 0 Surface : 2 (Reflective ground surface) Receiver source distance : / m Receiver height : / m Topography : 1 (Flat/gentle slope; no barrier) Reference angle : 0.00 Environmental Noise Assessment A 28