{
  "url": "https://openlegislation.uk/eu-regulation-2014-540/annex-II/division-4/division-4.1/division-4.1.3/division-4.1.3.1",
  "json_url": "https://openlegislation.uk/eu-regulation-2014-540/annex-II/division-4/division-4.1/division-4.1.3/division-4.1.3.1.json",
  "legislation": "eur/2014/540",
  "legislation_title": "Regulation (EU) No 540/2014 of the European Parliament and of the Council of 16 April 2014 on the sound level of motor vehicles and of replacement silencing systems, and amending Directive 2007/46/EC and repealing Directive 70/157/EEC (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2014-540",
  "path": "annex/II/division/4/division/4.1/division/4.1.3/division/4.1.3.1",
  "kind": "division",
  "number": "4.1.3.1",
  "heading": "Vehicles of categories M1, N1 and M2 ≤ 3 500 kg",
  "text": "The calculated values for the acceleration test and the constant speed test are given by:\nLwot rep = Lwot (i+1) + k * (Lwot(i) – Lwot (i+1))\nLcrs rep = Lcrs(i+1) + k * (Lcrs (i) – Lcrs (i+1))\nWhere k = (awot ref – awot (i+1))/(awot (i) – awot (i+1))\nIn the case of a single gear ratio test, the values are the test result of each test.\nThe final result is calculated by combining Lwot rep and Lcrs rep. The equation is:\nLurban = Lwot rep – kP * (Lwot rep – Lcrs rep)\nThe weighting factor kP, gives the partial power factor for urban driving. In cases other than a single gear test kP is calculated by:\nkP = 1 – (aurban/awot ref)\nIf only one gear was specified for the test kP is given by:\nkP = 1 – (aurban/awot test)\nIn cases where awot test is less than aurban:\nkP = 0",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2014/540/annex/II/division/4/division/4.1/division/4.1.3/division/4.1.3.1",
    "retrieved_at": "2026-11-01T14:47:38.922483+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."
}