{
  "url": "https://openlegislation.uk/m4-motorway-heathrow-airport-spur-speed-limit-regulations-1994/note",
  "json_url": "https://openlegislation.uk/m4-motorway-heathrow-airport-spur-speed-limit-regulations-1994/note.json",
  "legislation": "uksi/1994/2129",
  "legislation_title": "The M4 Motorway (Heathrow Airport Spur) (Speed Limit) Regulations 1994",
  "legislation_url": "https://openlegislation.uk/m4-motorway-heathrow-airport-spur-speed-limit-regulations-1994",
  "path": "note",
  "kind": "note",
  "number": null,
  "heading": "Explanatory note",
  "text": "(This note is not part of the Regulations)\nThese Regulations impose a speed limit of 50 miles per hour on the length of the M4 Motorway known as the Heathrow Airport Spur (a distance of approximately 1675 metres) and on two short adjoining slip roads.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1994/2129/note",
    "retrieved_at": "2026-10-29T13:27:38.889607+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}