Acoustics/Noise

Turn to GeoSonics/Vibra-Tech for sound expert advice on noise evaluation and analysis.

Noise Measurement

Traffic noise, railroad equipment, aircraft overflight – all affect your neighbors and operation. Rely on GeoSonics/Vibra-Tech to ensure you meet HUD standards.

Outside of blasting, noise levels produced by operations are a significant source of concerns. Noise levels emanate from major pieces of equipment, stationary plants and mobile equipment. Point sources, line sources and multiple location noise sources produce varying off-site conditions. GeoSonics/Vibra-Tech has specialty expertise in this area. Whether at permanent locations or through individual monitoring with field technicians, we provide full-service measurement and evaluation of noise.

Noise level measurement requires monitoring equipment and analysis that exceeds a standard review. GeoSonics/Vibra-Tech uses Type 1 laboratory grade noise level monitoring equipment and environmental analyzers to evaluate community levels. This equipment exceeds the normal community level analyzer and provides measurement that can be defended without question. When longer-term measurements are necessary our Re:mote Monitoring technology has the flexibility to be configured for noise level measurement.

Noise levels are monitored over multiple day and month periods, producing long-term noise trends to be evaluated. Such trends reflect environmental conditions that may apply to a site on a week by week or seasonal basis. Noise levels may also be a source of concern when they occur on building interiors. Noise level measurements for interior wall and floor transmission may be necessary to determine correct construction.

When new construction may affect noise levels within a neighborhood, GeoSonics/Vibra-Tech can evaluate the noise produced and provide a determination of compliance to local ordinances and regulations. Additionally, traffic noise, railroad equipment and aircraft overflights all affect the ability of a developer to obtain government financing. GeoSonics/Vibra-Tech’s experience and monitoring ability includes noise level certification to meet HUD standards.


Noise Modeling

Get sound advice you can trust. Count on GeoSonics/Vibra-Tech’s unique noise prediction programs to give your operation the strongest evaluation possible.

Changes in operations or greenfield site permitting typically require noise level measurement, prediction and evaluation. When there is no ability to measure existing noise or existing noise levels require prediction and demonstration of technical merit to become part of permit documents or testimony, GeoSonics/Vibra-Tech has the experience and qualifications to provide documented, irrefutable noise level evaluations.

After considering whether your site has commercial, residential or industrial sources or neighbors, we make noise level predictions based on in-house software plus CadnaA software. These high-level noise predictive programs provide the ultimate in noise evaluation. Mining equipment, vehicle traffic, aircraft overflights and community activity may be evaluated, with predictions of off-site noise levels graphically represented. Where structures are present, specific point level receptor calculations may be made. With GeoSonics/Vibra-Tech, determining the specific effects of buffers and berms never involves unsupported estimations. Actual measurement of noise levels combined with predictions give you and your permit the maximum support possible.

Combining noise measurement with noise modeling prediction gives your operation the strongest evaluation possible. Once modeling has been completed GeoSonics/Vibra-Tech’s site measurement work can corroborate the mapping. Continual follow-up measurement with our Re:mote Monitoring system can provide ongoing documentation.

Like all GeoSonics/Vibra-Tech services, our noise modeling work provides clients with the technical support and accurate information needed to make decisions.


Noise Mapping/Contouring

With accurate measurement, evaluation and graphic displays, GeoSonics/Vibra-Tech creates a multi-stage approach to demonstrate noise level evaluation and avoid issues later.

Noise level measurement and analysis are only as good as the data and its presentation. For neighbors, community groups and regulators who are not schooled in noise evaluation, numbers alone mean little. In order to put together a complete evaluation of noise levels, graphic contouring or mapping of the data is necessary. GeoSonics/Vibra-Tech’s multi-stage approach to noise level evaluation includes measurement, evaluation and graphic representation of noise levels. Either through development of contour lines of equal noise or graphic overlays on aerials or CAD drawings, our professionals expertly demonstrate noise effects in adjacent communities.

When completed in conjunction with GeoSonics/Vibra-Tech software and noise measurements a clear and convincing case can be prepared for evidence or testimony. Noise contour lines of equal noise levels may be generated and plotted. Site berms or other noise buffers that affect noise level transmission may be designed and added, with the results seen prior to actual construction. Once added, the noise reduction of levels from ambient existing community noise may also be seen.

Evaluations for permitting may also be applied to considerations for operational modifications. Moving equipment, relocating haul roads, increasing plant size or other modifications within an operation cause significant noise pattern changes that require review before time, materials and resources are committed. Using GeoSonics/Vibra-Tech services and noise mapping can help you avoid issues before, during and after operations.