Southdowns were commissioned to investigate the noise emissions from the CTRL ventilation shaft headhouse buildings as part of the commissioning of the railway during controlled Eurostar movements at service speeds.
Extensive digital acquisition of noise signals was undertaken at each of the sites across London to enable an appreciation of noise generated by both mechanical equipment, and passing trains in the tunnels, with the latter also giving rise to regenerated noise from air flow within the shafts.
Data was used to identify relative contributions and to assess compliance with the Projects noise commitments, requiring the emissions not to exceed 5 dB over the pre-determined background noise level at sensitive receivers.
Croydon Tramlink Extension
Crossrail - Parliamentary Select Committee
Channel Tunnel Rail Link Contractors
West Coast Route Modernisation - Electrification Equipment
Southern Railway Train Operating Company
Thameslink Programme - CTRL Enabling Works
Southern Region Power Upgrade
Docklands Light Railway - City Airport Extension
Westminster City Council Rail Schemes Advice
Channel Tunnel Rail Link - Rail Link Engineering
St Louis Power Station, Mauritius
West Coast Route Modernisation - Contractor
Environment Agency - Waste Facilities
DLR Woolwich-Arsenal Extension
Lincoln Station Re-modelling
DLR Langdon Park Station
St Pancras International Station
Tottenham Court Road Station Upgrade
London Underground - Cooling the Tube Programme
East London Line Extension
Haripur Power Station, Bangladesh
Biomass Scheme, Polegate
Temporary Construction Railway - DLR Woolwich Ext.
Bacton Gas Terminal
Cambridge Junction, Hitchin