Carillion has secured two contracts for Network Rail projects across the London region valued at a combined total of £122 million.

The company will be responsible for delivering work on the Crossrail West Inner Track Improvements and Crossrail Old Oak Common development and Paddington Approaches and Intercity Express Programme. The Crossrail project is aimed at improving transport links across the capital and reducing the strain on the Underground system, which can become increasingly congested during rush hour.

Carillion's section will ensure that the Crossrail is fully integrated into Network Rail's existing routes from Stockley Junction in the west of the city to Old Oak Common heading up to Paddington. The company's role in the project will include design, track work, switches and crossings, overhead line and cable management, as well as civil engineering.

The contracts have been procured from Network Rail and will be managed by the organisation during the construction work. Funding has been generated with the help of Crossrail and officials expect the work to be completed by summer 2017.

Richard Howson, Carillion chief executive, said: "We look forward to continuing our strong relationship with Network Rail through working together to delivering the upgrades required to enable Crossrail to connect to the existing network between Stockley Junction and Old Oak Common."

The construction of Crossrail has been moving at a pace during 2013 with the development reaching a number of major milestones and the group has outlined a number of plans that are set to take place until 2015. The first Crossrail tunnels are expected to be completed by the end of 2013 which will form the connecting western section between Royal Oak and Farringdon.

There is also set to be further work carried out by Canary Wharf Group to create a timber lattice roof on the top of the new Canary Wharf station. This is expected to take place in the latter stages of the year.

Crossrail is set to be a major boost for the London area, reducing journey times and congestion.

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