Invensys will be responsible for the design, supply, installation, testing and commissioning of the signalling works, including new LED signals, gantries and posts, and new lineside equipment. The contract follows completion of the Reading Enabling Project, a 27 month programme that involved transferring control of Reading station to three Westlock computer-based interlocking at the new Thames Valley Signalling Control Centre at Didcot. One of these will be remodelled as part of the Reading Southern Lines signalling project which will be commissioned over the Christmas period.
 
The overall project to upgrade Reading includes the remodelling of the Reading station area from Sonning to Pangbourne to allow better flow of traffic, a new maintenance depot, and four new platforms which will increase capacity.