Noise Monitoring Program Port Community Liaison Committee Delta - - PowerPoint PPT Presentation

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Port Community Liaison Committee – Delta (PCLC) Delta Community Office March 17th, 2015

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Noise Monitoring Program

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Noise Monitoring Program – Overview

Program Goals Monitoring Locations - Delta Noise Sentinel System Noise Metrics I ntegration w ith Port Operations

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Noise Monitoring – Goals

• Noise is an important issue for the Port
• Community complaint driven (current approach)
• Part of Port’s sustainability objectives
• Improve understand of noise environment
• Confirm or exclude noise sources
• Long term trending of port related noise
• Establish a body of knowledge to inform decision makers

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Roberts Bank Delta – Locations

RBD Tug Basin RBD Gingell Park RBD Longhouse (TBC)

Disclaim er: Levels indicated at noise terminals may not directly relate to community

• r individual impacts as noise levels shown maybe mitigated or enhanced by

environmental factors such as distance, physical structures, and weather

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Noise Sentinel – Hardw are

• Equipment supplied by

Brüel & Kjær

• Integrated monitoring

terminal

• Weather station option
• Secure wireless data

transmission

• Managed 24 x 7
• Real-time web access
• On-demand enquiry and

reported for PMV

• perational staff

Weather Station Wireless Connection Microphone Integrated Meter Solar Panel

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Noise Sentinel – Public Portal

http: / / portmetrovancouver.pmv.noisesentinel.com/ http: / / www.portmetrovancouver.com/ en/ environment/ initiatives/ noise-monitoring

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Sound – Propagation

RECEI VER

Characteristics

• Continuous
• Intermittent
• Impulsive
• Tonality
• Low Frequency

I nfluenced by

• Distance
• Atmospheric Conditions
• Obstacles/ Barriers
• Reflection/ Absorption

SOURCE PROPAGATI ON

Perception

• Human Response
• Relative to Other

Sounds

• Changes Over

Time

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Sound – Basics

Environm ental Noise

• Relates to ambient sound levels beyond the comfort levels

caused by traffic, construction, industrial, and some recreational activities.

Sound Level (typically reported as LeqA)

• A measure of sound pressure that is frequency-weighted

(representing human response) and time-averaged (combining short term measurements to get longer term averages) for the purposes of reporting in the units of decibels (dB).

Long Term Measurem ent

• Most relevant to port related activities.

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Sound – Long Term Metrics

• Track number of noise events
• Community Noise Equivalent Level (CNEL)
• Annual time averaging
• Adjustments accounting for sound characteristics

Characteristic Factor Adjustm ent Evening (7 pm – 10 pm) + 5 dB Nighttime (10 pm – 7 am) + 10 dB Weekend, daytime (7 am – 7 pm) + 5 dB Regular impulsive + 5 dB Highly impulsive + 12 dB Tonal quality + 5 dB Low frequency Calculated dB

Source: ANSI S12.9 Quantities and Procedures for Description and Measurement of Environmental Sound – Part 4 : Noise Assessm ent and Prediction of Long-term Community Response

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Port Operations

• Strategy (in development phase)
• Project and environmental review
• Lead pilot projects
• Collaboration with stakeholders

Com m unity I m pacts Operational Requirem ents

Continued Port Growth and Increased Activity Anticipated

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Questions

Environmental Programs

EnvironmentalPrograms@portmetrovancouver.com