Nexus requires suitably qualified and experienced technical consultants, who will be appointed to a five year zero-value framework, as a single supplier, to support Nexus on the technical development for a new extension to the Tyne and Wear Metro network: the Washington Metro Loop (WML). Under this framework, Nexus will tender a series of successive packages of work, including:
• Feasibility study 
• Topographical surveys and site investigation 
• Design in principle 
The aim of the feasibility study, which will be awarded at the point of framework award, is to build on and further develop the findings and ideas to date to produce an efficient and effective design and programme for delivery.
Subject to approval of the Outline Business Case (OBC) by Government in due course, and the main contracting strategy, Nexus may also tender the detailed design as part of this framework let.