Appendix I - Noise Assessment Screening Worksheet

Transcription

1 Appendix I - Noise Assessment Screening Worksheet Questio Ne A ti it, Repla e e t or E pa sio Will the project involve only the replacement of existing equipment or activities or the expansion of a pre-existing facility or activity, or will it involve significant new noise sources or activities? Repla e e t of E isti g E uip e t o A ti ities E pa sio of E isti g E uip e t o A ti ities *similar industial activity is occurring at neighboring facility Ne E uip e t o A ti ities Score 3 Questio Noise Le els E pe ted o Proje t Site Based on experience with similar operations at the current location or elsewhere, or on your best judgment, do you expect that noise levels within the project site will be: Ve Lo Lo Mode ate High Ve High Question 3 - Presence of Undesirable Characteristics Score 2 Will any of the key activities/sources create ongoing noise which: (1). is clearly tonal (hums, whirs, whines), (2). is impulsive or has very rapid onset (bumps, bangs, material handling impacts, rail car shunting, compressed air release etc.), or (3). contains strong low-frequency content (e.g. large diesel engines, large fans or air compressors). No Yes, oise ill o tai o e su h ha a te isti Yes, oise ill o tai t o o th ee su h ha a te isti s Questio Prese e of High-E erg I pulsi e Noise Score 3 Will a y a ti ities reate o goi g oise hi h ould e lassified as High-e ergy I pulsi e? Examples of such sources are limited in the port context but could include the industrial use of explosives or explosive circuit breakers. No Yes Questio Hours/Da s of Operatio Score 0 Will the normal operating schedule be: Da Shift o l da s/ eek Da Shift o l da s pe eek Da & E e i g Shifts da s/ eek

2 Da & E e i g Shifts da s/ eek -hou s pe da da s / eek -hou s pe da da s pe eek Questio Pro i it to Noise-Se siti e Areas Score 1 How far is the nearest noise-sensitive land use (residences, schools, hospitals, passive parks etc.) from the property line of the project site? Mo e tha, to, to to to less tha Questio Prese e of Noise Shieldi g or Refle tio Score 4 Will buildings, structures and/or landforms partially or totally screen (that is, interrupt the line of sight and direct hearing) project noise sources from nearby noise receptors? Here consideration should be given to the relative elevations of the noise sources, the noise receivers (ground and upper floors) and the intervening buildings and/or landforms. Noise shielding effects are maximized when intervening buildings and/or landforms are higher and wider than both the noise source area and the noise receiver area. Alternatively, the project may involve construction of a building or other structure that, while not necessarily a significant source of noise itself, reflects noise from other sources towards adjacent noise-sensitive areas. This other noise may originate from project operations or from sources not related to the project, such as other port operations or transportation facilities related Su sta tial, o ti uous oise shieldi g Su sta tial, ut ot total, s ee i g I te itte t shieldi g, e.g., o of s alle, o -adjoi i g uildi gs S atte ed shieldi g o je ts, a hi e, sto kpiles S o e poi ts No shieldi g pote tial No oise shieldi g a d ill efle t oise to a ds se siti e a eas Score 0 Note: A noise shielding barrier will be constructed along the western property boundary (conceptual cross-section attached Figure 1). This will consist of a 1 to 2 m high lock-block wall behind a constructed soil berm adjacent to material handling noise-producing areas (noted as stockpile area in Figure 1), with a 1 to 2 m high noise-blocking fence placed along the top of the berm. Beyond the berm, Swedish Columner Aspens will be planted along the property line, which can grow to a height of 15 m and a thickness of 3 m, providing additional secondary noise shielding. The highest potential impulse noise will occur at the height of a dump truck bed (approximately 1 to 1.5 m) within the stockpile area as soil is loaded. The proposed barrier will effectively and continuously shield receptors located on the second story (approximately 4 or 5 m ) of the nearest resident (2nd floor approximately 100 m from the noise source) from material handling impact noise as well as residences located further away from the property. If the impulse noise source is located 1.5 m above ground at a distance 100 m from a receptor located on a 2nd story balcony or at a 2nd story window (5 m above ground, net of 3.5 above the noise source), trigonometry shows that the angle of incline to the receptor is 2 degrees: θ = ta /100 The maximum distance between such impulse noises on the property and the noise shielding barrier will be approximately 30 m. The required height above ground of the barrier is then given as: (tan 2 30) = 2.5 m The height of the constructed barrier will exceed the required height for effective substantial and continuous noise shielding. Questio Baseli e Noise E iro e t How would you rate the baseline (pre-project) noise environment within the noise sensitive area nearest the project site?

3 Ve ois ea us high a, us po t, ai po t, hea i dust Nois ea us a te ial oad, light i dust ial a ea, u a o e Mode atel oise ea olle to oad, su u a eside tial Quiet su u a eside tial a a f o olle to oads Ve Quiet u al eside tial, ell a a f o i dust o ai oads Questio Populatio Pote tiall E posed to Proje t Noise Score 2 Approximately how many residences or other noise sensitive land uses are located within 500 m o less to to to o e tha Questio Le el of Co u it Co er a out Noise Score 5 What level of concern (e.g., complaint history) currently exists among residents/users of adjacent noise sensitive lands regarding noise emissions from PMV lands in general and your project site in particular? No histo of o e o o plai ts S o e poi t Mi o o e s ha e ee e p essed S o e poi ts U k o S o e poi ts Mode ate le el of o e, so e o plai ts High le el of o e /o ga ized o plai ts Score 1

4 Q:\Vancouver\Drafting\Engineering\VGEO\ENG.VGEO \ENG.VGEO Conceptual Cross Section R0a.dwg [FIGURE 1] August 18, :44:27 pm (BY: HALL, ROBERT J) 1 m TO 2 m NOISE BARRIER (FENCE) LOCK BLOCK WALL 1 m TO 2 m HIGH SOIL BERM STOCKPILE AREA 2 m TO 3 m WIDE PLANTING ZONE ISSUED FOR REVIEW CLIENT LEGEND NOTES DERWENT WAY TRANSFER FACILITY SCALE: NTS Westerra Enterprises Inc. SCREENING NOISE ASSESSMENT FOR PORT METRO VANCOUVER CONCEPTUAL NOISE SHIELDING ALONG WESTERN BOUNDARY EBA PROJECT NO. DWN CKD REV ENG.VGEO RH TM 0 OFFICE DATE EBA-VANC August 18, 2016 Figure 1

5 Appendix II - Noise Assessment Project Score No. Attribute of Project or Project Setting Score Importance Weighting Weighted Score 1 New Activity, Replacement or Expansion Noise Levels Expected on Project Site Presence of Undesirable Characteristics Presence of High Energy Impulsiveness Noise Hours/Days of Operation Proximity to Noise Sensitive Areas Presence of Noise Shielding or Reflection Baseline Noise Environment Population Potentially Exposed to Project Noise Level of Community Concern About Noise TOTAL WEIGHTED PROJECT SCORE