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Crossrail C510 Whitechapel and Liverpool Street Station Tunnels

This project is the 2018 Association of Noise Consultants ( ANC ) Award Winner in the Environmental Noise Category. Southdowns was appointed as the noise and vibration specialists by the Balfour Beatty BeMO Alpine Morgan Sindall Vinci Joint Venture ( BBMV JV) in 2011 to manage the contractor’s requirements with respect to noise and vibration. The C510 contract is widely regarded by the project as one of the more complex tunnelling packages due in part to the close proximity of residential and non-residential noise and vibration sensitive receptors to the main tunnel support worksites. The total value of the contract...

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Crossrail - C610 Systemwide Track and Fit Out

Southdowns is the lead noise and vibration specialist for the design and build contractor (Alstom TSO Costain JV,) with responsibilities that include the final detailed design sign-off of the proposed Standard Track Systems for the tunnelled sections of the alignment under central London. The track has been designed to achieve prescriptive groundborne noise and vibration requirements in overlying buildings and includes several generic trackform types including: resilient baseplates; bi-block and monobloc booted sleeper systems; and two variants of floating track slab in sensitive locations. Other design related elements include: the optimisation of fixed nose switch and crossing units to minimise...

Baseline noise study of DXB noise emissions

Dubai International Airport

Southdowns was commissioned to install an unattended noise monitoring system in and around Dubai International Airport ( DXB ) and to undertake a baseline noise study of DXB noise emissions over a 6 month period. The baseline noise study forms part of an Environmental Social Impact Assessment ( ESIA ) and the determination of environmental conditions around DXB during the initial phase of DXB’s Strategic Plan 2020. Ten unattended noise monitoring station were setup to monitor air traffic arriving into and departing from DXB. The noise monitoring stations were installed at the end of each runway and within the grounds...