An independent Impact Advisory Group (IAG) is formed from key Stakeholder User Group (SUG) members and provides more detailed advice and co-create research outputs.

The IAG comprises primary users of the Programme’s outcomes; managers and engineers responsible for the design, operation and maintenance of long linear earthwork assets, including Highways England (Patterson), Network Rail (Abbott), HS2 (Sartain), Environment Agency (Tarrant), The Cabinet Office, CIRIA, industry consultants, standards consultants and contractors (including JD Consulting Dora, CH2M Moore, Jackson, Mott MacDonald, Power). During the first year, the IAG will be chaired by Abbott (NR), a member of the Geotechnical Asset Owners Forum (GAOF).

The IAG meets six-monthly – with alternate meetings open to the whole Scientific Steering Group.