TII has a requirement for engineering services in connection with the updating and maintenance of the documents contained in TII Publications relevant to Structures/Geotechnics (Lot 2) and ITS/Signage and Communications (Lot 5). These documents provide a set of design standards and guidance which are comprehensive, up-to-date, fit for purpose and reflect international best practice to facilitate the design, construction and maintenance of TII projects in the above areas. Lot 2: Structures and Geotechnics : provides for the development of TII Standards, Specifications and other technical documents relating to the structural and geotechnical assets that form part of the TII’s transport networks. Lot 5: ITS and Communications: provides for the development of TII Standards and Technical documents relating to ITS and communication systems on national roads.