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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...


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...

Railway noise and vibration consultants

New Cross Gate Depot - East London Line

Southdowns was commissioned by TfL (London Overground) to undertake an independent verification of the newly operational East London Line traincare facility at New Cross Gate depot with a view to assessing compliance against historical planning conditions imposed through the TWA process. Southdowns was selected due to its expertise in railway noise and vibration, its familiarity with the traincare processes and previous involvement on behalf of LB Lewisham the local planning authority. All parties involved agreed to this joint expert role on the basis that no conflicts existed. The specialised technical work and competencies required for this project included:. - Understanding...