London Underground Limited
SSR OS7/8/9 - Signalling Solutions for Ove Arup
London Underground is introducing longer trains on the sub-surface (SSR) lines, with an additional carriage. Alterations were needed to the existing signalling system to accommodate the additional train length.
Xanta were engaged by Arup to provide design support, expertise, mentoring and assistant for this work. The packages were OS7, OS8 and OS9 and covered stations on the west side of the Circle, District and Hammersmith and City Lines.
Xanta and ARUP developed impact studies into a preferred design to enable alterations to pass to the detailed design stage. The objective was to provide signalling design that identified signalling equipment to be moved and or recovered to facilitate provision of the longer train. The work required production of deliverables that included survey reports, concept design, diagrams to support the proposed design, signal sighting, design risk assessments, and identification of options section of the preferred scheme.