Survey control underpins accuracy on UK civils and highways projects. We explain what control is, why it matters, who owns it, and simple ways to avoid costly errors during setting out, as-built measurement, and handover.

Site Engineers, Setting Out Engineers and Surveyors are often treated as interchangeable, but on UK civils projects the differences matter for competence, documentation and delivery. This guide explains the roles clearly and why it matters for contractors, PMs, QSs and international engineers.