Infocenter Directory

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Suburban Hospital planned an expansion that would affect its operations and
nearby neighbors. Phoenix Noise & Vibration was contracted to manage the project’s
environmental impact in order to uphold hospital operations, ensure compliance with
regulations and reduce community annoyance.

2.63 MB File Size

Suburban Hospital planned an expansion that would affect its operations and
nearby neighbors. Phoenix Noise & Vibration was contracted to manage the project’s
environmental impact in order to uphold hospital operations, ensure compliance with
regulations and reduce community annoyance.

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Vibration Monitoring Terminal (VMT) Type
AU-3680-X-LON is a complete solution delivered as part
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Sentinel On Demand enables you to monitor and
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instrumentation, collect and report data and maintain
your data indefinitely in the cloud.

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Sentinel Stakeholder Web works with your Sentinel service to deliver a rich source of environmental information that engages the community, helps to set expectations, and shows that you are serious about managing your environmental impact - making you a responsible neighbour.

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Details about our simple and effective Vibration Monitoring Terminal features, benefits and technical infromation

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Continuous, unattended noise monitoring systems can immediately alert you should noise levels exceed defined criteria. Once alerted to an exceedance, operators can act to return levels to compliance. This approach has two significant limitations. Firstly, the operator can only take action after the breach has occurred and therefore systems are only able to inform owners about problems that have occurred in the past, rather than allowing them to maintain compliance. Secondly, the noise limit exceedances might not be due to specific noise from the operator but from unrelated, residual noise in the often-complex noise climates around the particular site and will then be the cause for a false positive. Compliance breaches are frequently triggered by aircraft overflights, road traffic or community sources. Modern monitoring systems enable users to view noise characteristics and listen to the noise breach to determine the source and act if necessary. However, this approach can create a significant number of false positives each taking up operator time to address. A previous paper by the authors described how airport noise management systems have addressed this problem by combining data from other systems, and how different techniques are required in urban & industrial noise management. This paper describes developments in these techniques and gives examples of techniques that allow operators to take action before a compliance breach occurs, and to reduce the number of false positive alerts.
PACS no. 43.50.Rq, 43.50.Sr, 43.50.Yw

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Backed by field measurements, this paper provides a practical look at the effect of weather conditions on noise levels in order to raise awareness of the importance of meteorology in noise measurements. This paper references the requirements for measuring meteorology in BS 4142:20141 and compares those requirements to legislation from other countries, focusing on the propagation of sound rather than spurious noise created at the microphone. Whether short- or long-term measurements are considered, variations due to weather can add considerably to measurement uncertainty and should not be overlooked.

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Long term monitoring of noise from airports, industrial facilities and construction projects has been well established over many years. The systems monitor noise levels at various points around the facility, feed the data back to a central system where data can be summarized and any breaches in compliance criteria are reported. These systems are passive by nature; they simply report what happened giving little opportunity to do anything to prevent breaches in the first place. Should breaches occur, attendance at the site is typically necessary to investigate before advice on mitigation can be given to prevent future breaches of compliance.

Technology advances in how data is captured, what data is captured and how it is accessed now means that in a large number of cases investigation can be achieved remotely without the need for site visits. This makes the process more efficient, lower cost, and much more immediate. Technology can now deliver results in real time that can help to prevent breaches occurring in the first place.

This paper outlines the technology advances and suggests how they will help to change the way noise consultants can deliver more monitoring services over a wider geographical area with fewer staff whilst simultaneously providing a better quality result

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City noise management involves a variety of disciplines such as planning, mapping, action plans, policing, complaint management, abatement and public awareness. With the wide availability of mobile broadband internet access coupled with low cost noise sensors, many authorities and researchers are eager to use sound sensor networks for these tasks. A sensor network can be defined as a group of specialized transducers and processing with a communications infrastructure and is intended to monitor and record conditions at diverse locations, connected to a central software. This definition covers a wide range of different possibilities, designs and components such as MEMS microphones, processing software, type approved instrumentation, smart phones, etc. However, are all networks suitable for all tasks? Many sensors trade off measurement precision to reduce cost and enable an increase in number of measurement points within a budget. This paper describes different sensor classes and implementation strategies. It discusses the relative merits of different sensors and describes what is important to take account of when implementing these networks for application to one or multiple noise management tasks, outlining what each can be used for and what they shouldn’t be used for. Aspects covered include architecture, and practical applicability. The paper concludes with recommendations for using different smart networks and for further research. PACS no. 43.58.+z, 43.50.+y

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