Thameslink Programme
London and South East England, UK · 2009–2020 · £7bn (2019 prices)
The judgement call
Account-gated at launchThe importance of co-located teams and early contractor involvement for complex station redevelopments like London Bridge. - Innovation in using pre-fabricated modular components to accelerate construction and improve efficiency. - Initial poor planning and insufficient understanding of the existing network condition by the Department for Transport and Network Rail led to significant delays and cost overruns. - The programme highlighted the critical need for robust project management and integration across infrastructure, rolling stock, and operational aspects in major rail projects.
Key engineering challenges
Redeveloping London Bridge station, one of the busiest in the UK, while maintaining full operational service. - Integrating complex new signalling systems (ETCS) and track layouts into a highly congested and operational railway environment. - Managing significant infrastructure failures and delays, particularly concerning the existing Network Rail infrastructure, requiring substantial remedial investment. - Delivering a highly complex programme involving simultaneous upgrades to infrastructure, introduction of new rolling stock, and implementation of new timetables.
Project facts
- Client / owner
- Network Rail, Department for Transport (DfT)
- Lead contractor
- Costain (London Bridge Station redevelopment), Balfour Beatty (various infrastructure works)
- Lead designers
- Grimshaw (London Bridge Station architectural design), WSP (London Bridge Station rail system design), Mott MacDonald
- Project type
- upgrade
- Scale
- 100 new stations served; increased capacity to 24 trains per hour through central London; 7km of infrastructure remodelled around London Bridge; 115 new trains
- Disciplines
- civil; structural; electrical; systems; signalling; track; railway operations; project management; environmental
- Standards & frameworks
- Network Rail standards; CDM Regulations; RSSB standards
Sources: Wikipedia (https://en.wikipedia.org/wiki/Thameslink_Programme); New Civil Engineer (Jan 2018, https://www.newcivilengineer.com/archive/infrastructure-failures-cause-of-thameslink-delays-report-finds-10-01-2018/); National Audit Office (Nov 2017, https://www.nao.org.uk/reports/update-on-the-thameslink-programme/); BRE Group (https://bregroup.com/case-studies/thameslink-programme-london-bridge-railway); Emerald (Jan 2021, https://www.emerald.com/jcien/article/174/3/116/437461/Thameslink-programme-uk-design-and-construction-of)