Our Projects

Management of the Signalling & Signal Control Assurance Programme   Monitoring of compliance by signalling contractors to LUL’s requirements and national and international standards and developing the systems assurance elements for the safety case and proof of safety requirements for introducing the new signalling and control system. Stockton has developed, refined and addressed the Client’s safety concerns by use of suitable skills and tools to produce hazard / safety or risk assessments using techniques Stockton has developed, or enhanced. This work included review/audit of contractors’ safety analyses for the signalling hardware and software. It also involved linking these analyses to the LUL safety case and presenting the results in a form suitable for approval by LUL and The Railway Inspectorate.

Metronet and LU have a rolling programme to replace point systems with modern designs.  There is also significant engineering development work where system designs have to be modified for LU application.  This involved novel components and new applications of systems applied elsewhere.  Our consultants provided system application safety cases and worked closely with suppliers to ensure the necessary safety evidence for approval by LU safety review panels.  Supporting specialist technical work by our consultants included safety case construction (using GSN where needed), cost benefit analysis, fault tree analysis, RAM analysis, hazard identification, hazard review and management to closure.

Provision of Assurance Management Support allied specifically to the Introduction of ‘Hydraulic In Bearer Clamplock (IBCL) Points’ at Neasden Depot and Provision of a Feasibility Study / Migration Strategy for an ‘Electrically Actuated IBCL’ for future use on TfL Infrastructure.   Management of the production of the Product Assurance documentation produced by the Points Supplier (SPX Rail Systems) as part of the ‘Product Safety Case’ to gain approval for the introduction of ‘In Bearer Point Mechanisms’ (IBCL) for use at Neasden Depot. In addition to this we prepared a Feasibility Study / Migration Strategy for the introduction of ‘Electrically Actuated IBCL’s’ for future use on TfL Infrastructure. This work included Failure Analysis, Bottom Up Cost Estimates and Detailed Planning and Whole Life Costing of the Hydraulic vs Electric Variant.

Stockton are providing Engineering Safety Management support to Bombardier Transportation (UK) for the new User Worked Crossing product known as EBI Gate 200.  Stockton have provided a full suite of safety documentation to enable the EBI Gate 200 system to be approved and rolled out on the Network Rail infrastructure.

London Underground Deep Tube Programme   Provision of Support for the Engineering Safety Management activities to the Deep Tube Programme for London Underground.  The Deep Tube Programme objective is to derive the maximum capacity of the Deep Tube Lines, through replacement of Rolling Stock and Signalling assets whilst: · • Resolving the constraints of the existing infrastructure • Minimising energy utilisation • Managing increases in tunnel temperature • Improving the customer experience • Exploring higher levels of automation • Not accepting wholesale closures and • Improving overall service reliability Specialist technical work by Stockton includes safety planning, production of project safety documentation, liaison with project stakeholders together with hazard identification, management and review.

Thameslink High Capacity Infrastructure Stockton assisted Lloyd's Register Rail / Ricardo Rail in the provision of engineering system and safety support for Network Rail during the implementation of the Automatic Train Operation and European Train Control System on the Thameslink route in London. Specialist technical work by Stockton includes work package safety planning, liaison with project stakeholders and support to hazard identification, management and review.

Safety engineering and assurance leadership through testing and trials phases and start of revenue service on the Elizabeth line.
Stockton provided senior management and specialist engineering over four years leading up to the completion of the Elizabeth line. Our consultants provided expertise in a number of roles, including the Head of Assurance for the Crossrail delivery as a whole, covering technical assurance, requirements, RAM and engineering safety management. Eight Stockton specialists contributed to programme delivery. We provided system safety analysis, hazard identification, hazard review, safety justification submissions (Common Safety Method) and overall management of system safety and assurance to drive completion of the railway.