Glossary of terms


  • ULEZ: Ultra Low Emissions Zone
  • HULEZ: Heathrow Ultra Low Emissions Zone
  • CoCP: Construction Code of Practice
  • DfT: Department for Transport
  • TfL: Transport for London
  • DCO: Development Consent Order
  • PINS: Planning Inspectorate
  • Airports NPS: Airports National Policy Statement
  • Airports Commission
  • CPZ: Compulsory Purchase Zone
  • WPOZ: Wider Property Offer Zone
  • Category 3 compensation
  • NSIP: Nationally Significant Infrastructure Project
  • TEAM: Tactically Enhanced Arrivals Mode
  • IPA: Independent Parallel Approach
  • MPPA: Million passengers per annum
  • Northern runway: With expansion, refers to the new third runway to the north-west of the existing runways.
  • Middle runway: With expansion, refers to the what is today known as the Northern Runway (27R, 09L)
  • Southern Runway: The existing southern runway (27L, 09R)
  • DILs: Document Inspection Location