projects

Below are a list of recent project case studies. Select one to learn more, older case studies are listed in the archive...

> Agricultural worker's home
> Town Centre apartments development
> Drinks production factory upgrade
> New town residential development
> Garden centre redevelopment
> Residential development near North Circular Road

A noise survey established existing noise conditions at the site. A noise assessment reviewed the proposed layout to reflect the noise exposure category of the site and the internal and external amenity space.

The mobile home is based on the design of a Norwegian log cabin. The sound insulation of external wall and window construction was assessed and the predicted sound reduction of the facade showed that good resting and sleeping conditions will result.

This study followed an earlier study in 2004 completed at the planning application stage.

The Local Planning Authority required an updated noise report on the existing noise climate affecting the development. In addition there was concern on the part of the Environmental Health Officer regarding the relocation of an electric substation and its impact on the living conditions of future residents. 

A nightime manual survey and 24hrs continuous noise monitoring were carried out.

The orientation of the building, including a gable end blank wall, has resulted in effective screening of the flats from the electrical sub station. This together with an internal arrangement ensuring that sensitive rooms are protected by interposing the less-sensitive rooms (bathrooms, kitchens and store roomsw) and a primary double glazing window system with trickle ventilators installed within all habitable roooms on facades adjoining the sub station resulted in a good internal noise climate in line with the requirements of the Local Planning Authority.

 

 

Noise surveys of the external areas of the site during daytime and nighttime hours. The nighttime survey monitored heavy goods vehicle arrivals and departures and the loading and unloading operations with fork lift trucks.

A 24hrs continuous measurement system recorded background and ambient noise levels at the site boundaries adjoining neigbouring residential properties.

An audit of the internal levels generated by the existing bottling lines was also completed.

The noise report detailed survey results, observations and suggested mitigation and related design issues for the expanded production facility.

 

A noise study assessed the principle source of environmental noise generated by road traffic on the motorway which lies in a cutting adjoining the site.

Noise surveys in accordance with the Department of Transport Calculation of Road Traffic Noise were carried out using the shortened measurement method and continuous noise monitoring over 24hrs.

The assessment demonstrated that the site falls into Noise Exposure Category B.

The report concluded that outside space(s) would expect a reasonable standard of external amenity and that sound levels inside the dwellings would result in a good standard of internal amenity in terms of the criterion in BS8233 and that there would be no conflict with local planning policies.

The assessment examined noise conditions at the site and noise generation from goods deliveries.

The noise surveys of background and ambient noise levels were concentrated at the site boundaries adjoining neighbouring residetial properties near to the proposed location of the new storage building. 

Additional noise measurements were recorded at 10m distance from stationary lorries, fork-lift truck(s) unloading and loading goods and vehicular movements in the yard.

The noise report presented results, an analysis of predicted levels and recommended mitigation. There was scope for attenuation within the building and the design of boundary treatment that took the form of an acoustic fence and a planted earth bund.  

 

 

 

 

 

Noise surveys were undertaken during a 24hours weekday to record road traffic noise levels at the site. External and internal levels affecting the existing dwelling were measured.

The noise exposure category (NEC) of the site was determined as NEC D and planning permission was likely to be refused.

To achieve target noise levels inside the dwellings the design for the new dwellings required a high window specification to ensure that a good standard of internal amenity would be achieved in terms of the criterion in BS8233: 1999.

A whole house continuous ventilation system incorporating quiet fans with integral ductwork attenuators was recommended.

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