Crossrail is one of Europe’s largest construction projects: a 118km railway line under development across London and the home counties. As part of the wider Crossrail project, packages of works that are described as “on network works” have been completed or are due for completion in 2019/20.

The signalling and associated civil engineering, telecoms and power packages were awarded by Network Rail to Alstom (previously Signalling Solutions) in 2011.

Abacus has provided commercial management and quantity surveying support to Alstom throughout the delivery of these packages of work on this prestigious project.

The scale

Final accounts on these projects will exceed £100m of signalling works delivered successfully.

The challenge

The signalling brief is to upgrade the existing SSI (Solid State Interlocking) to a CBI (Computer Based Interlocking) technology and to design with consideration for the future ERTMS (European Railway Traffic Management System).

Delivery

Abacus has supported the wider Alstom project team, providing pre and post-contract services in a complex environment.

“Abacus offers a great one-shop service to ensure the contract commercial requirements are satisfied and positive final account and settlement arrangements were agreed. The service always feels supportive and professional and Abacus’ staff integrate well into our project delivery teams. Abacus’ work helps ensure our commercial interests are protected in some very demanding situations.”
Project Director – Signalling Solutions

Our work included

• Post contract administration
• Management of claims and change control
• Commercial management of subcontract packages of work
• Production of cost and value reconciliation reports and forecasts
• Work package cost control
• Mentorship and training of Alstom staff