With the increase in the use of rail for both the high speed movement of passengers and for freight transport, there are growing needs for measurement and monitoring of noise levels from rail operations.

High speed rail operations can generate high noise levels that can impact upon the surrounding environment and become a community noise issue unless monitored and managed effectively.

Noise levels from freight operations, although often lower in absolute level, can be more of an annoyance to the nearby population as the noise sources are often present for much longer periods. Longer trains often require more than one power unit and the slow speed of these can impact significantly upon the environmental.

Cirrus can provide a range of noise measurement systems that can be used for short term noise measurements as well as for long term or permanent monitoring of rail operations.

The Optimus Green sound level meters can be used either a handheld instrument or with an environmental measurement kit to give a comprehensive range of noise parameters including frequency data and audio recording.

For longer term or permanent measurements, we can offer a range of noise measurement systems that are fully weather protected and that can provide data over a remote communication system to a central location.