Depots Package B – Doncaster West, Doncaster Belmont, Tyne Yard ES4-5

The Depots and Stabling Project is the development of a strategy that is supported by necessary operational arrangements and any specific infrastructure interventions, to mitigate the impact that the railway access requirements of the wider TRU programme. As an established site, Doncaster West, was identified as a favourable location that could be mobilised quickly to support an uplift to stable trains and provide a legacy.

An ES3 feasibility study is being developed which will be issued post contract award as the design is not mature enough at tender stage. Draft design shall be issued for the tenderers to use to inform their tender offer.

TRU Engineering will provide engineering assurance. In summary the key deliverables are the ES4 design development of the option selected in the Option Selection Report and the ES5 Detailed Design provision: • Validate that the option selected in the OSR is feasible, using the draft design for pricing purposes only, (considering all disciplines and operations and maintenance requirements) and provide a report and drawings to support the following scope as per the iCRD which include, but not limited to the following:- o Reinstate siding No 6 to stable a 9 car AZUMA trainset including all ancillaries and stand back. o Reinstate points No 5041 and confirm that no further works are required to other point ends to access the siding. o Points 5042 shall be clipped normal to prevent access to siding No 5.

This is to ensure adequate clearances are provided whilst the driver is performing their train inspection. o Provide 360-degree drivers walkway o Provide walkway lighting for the reinstated No 6 siding compliant to BS12464. o Provide a high level outline construction schedule. o Provide an assured ES 4-5 cost plan o PC appointed supplier to incorporate an ES6-8 Construction cost plan. o To explore opportunities in the programme to ensure EiS 4 months before December 2027. o Confirm that there or no OLE works required or define what works will be required to the OLE, including any earthing and bonding to meet the requirements of the i-CRD. o Confirmation that the existing method of working is valid for trains entering and leaving the depot and that the existing operational procedures will not need to be altered. This will require engagement with the depot operator, local operations manager and will be facilitated by the NR POIS and project team.

The principal disciplines identified are Civil & Structural, Permanent Way, signalling (including ops and maintenance interface). The contractor is responsible for identifying and undertaking any additional surveys they deem necessary acting as Principal Designer.

The design shall be deemed to include permanent and temporary works associated with all necessary railway disciplines. All required designs, temporary works and disciplines are to comply with Network Rail Standards for submission and follow the prescribed engineering and construction methods to meet Network Rail Standards. Engineering assurance, to validate the designs will follow those prescribed by NWR standards and TRU Engineering will be the assurance body for the design.