This document establishes the legal framework and regulatory authority for the construction and modification of the A421 trunk road between Wendlebury and Bicester, specifically concerning the implementation of slip roads. The text is issued by the government of Great Britain to formalize the compulsory purchase of land and the alteration of existing highway infrastructure. It serves as a statutory instrument, providing the legal basis for the Department of Transport to proceed with specific road improvements in Oxfordshire.

This document is utilized primarily by legal professionals, civil engineers, and land surveyors involved in historical infrastructure planning. Experts categorize this as a standard statutory instrument that provides the necessary administrative authorization for public works projects.