An environmental noise impact assessment is a detailed noise survey and is often required for planning applications and are requested by local authorities in order to establish the environmental noise impacts of a development. An environmental noise assessment will typically involve an assessment of the existing noise environment and comparison of the predicted of the noise level generated by the proposed development.
Noise impact assessments/ noise surveys/ noise tests are normally requested by a Planning Officer or by the Local Authority due to concerns relating to construction of new residential dwellings (or change of use) in a high noise exposure area. New dwellings can be exposed to road traffic, rail, air or mechanical/commercial noise which is unacceptable.