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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...


St George’s Park Retirement Village, Ditching Common, West Sussex

Sound Insulation Design and Testing. This major complex comprised the construction and development of 74 new retirement flats, along with a range of on-site facilities including restaurant, bar, gym and retail. Southdowns’ was appointed by the main contractor prior to commencement of works to provide detailed acoustic design advice to ensure that the acoustic performance of the separating walls, floors, lifts and other amenity areas of the building achieved the guideline values and principles of Approved Document E. Subsequent testing of floors and walls was also undertaken on sample floors and walls, following completion of the building works....

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SW4 Music Festival, Clapham Common - Licence Appeal

Southdowns was appointed by London Borough Wandsworth to provide an independent review of the licence terms attached by London Borough Lambeth for the upcoming SW4 Concert on Clapham Common. This review included preparation of a critique of the event organiser’s various management plans and reports, with the view to preparing and giving expert evidence at the appeal court hearings, on behalf of Wandsworth Council. The SW4 Outdoor Music festival event is held annually on Clapham Common over the August bank holiday and includes dance orientated music from around the site. LB Lambeth, who control part of the park, had granted...