Railways
Southdowns is recognised as one of the UK’s leading firms in railway noise and vibration consultancy, with unrivalled experience and understanding of acoustical issues relating to major railway project delivery. Staff have extensive experience in the planning, design, construction, asset management and expert testimony on a number of key UK and international railway projects including:
- Crossrail
- West Coast Route Modernisation
- Channel Tunnel Rail Link
- East London Line
- Thameslink Programme
- St Pancras International Station
- Washington Metro, USA
- DLR City Airport Extension
- DLR Woolwich Extension
- High Speed Railway, Taiwan
- London Underground’s Cooling the Tube Programme
- LU Tottenham Court Road Station Upgrade
- Croydon Tramlink
- Dublin LRT, Rep. Ireland
- Speedrail, Australia
Senior staff were also seconded to Rail Link Engineering for a number of years during the design and construction of the Channel Tunnel Rail Link, managing the in-house team of specialists.
Southdowns extensive services to the railway sector cover construction and operational aspects for both underground and overground railways and include:
- feasibility studies
- route optioneering
- baseline noise and vibration studies
- development of calculation procedures and design aims
- impact assessments
- Section 61 (Control of Pollution Act 1974) Consent Applications
- groundborne noise & vibration
- ventilation shaft design
- noise barrier design and testing
- identification and specification of mitigation measures
- permanent way detailed design
- commissioning / compliance studies
- expert witness
The company is accredited under both the Achilles Link-up and Constructionline schemes and is retained to provide services on a framework agreement to Network Rail.

Crossrail Design