{
  "url": "https://openlegislation.uk/eu-directive-2015-996/annex/appendix-F",
  "json_url": "https://openlegislation.uk/eu-directive-2015-996/annex/appendix-F.json",
  "legislation": "eudr/2015/996",
  "legislation_title": "Commission Directive (EU) 2015/996 of 19 May 2015 establishing common noise assessment methods according to Directive 2002/49/EC of the European Parliament and of the Council (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-directive-2015-996",
  "path": "annex/appendix/F",
  "kind": "appendix",
  "number": "F",
  "heading": "Database for road traffic source",
  "text": "This appendix presents the database for most of the existing road noise sources to be used to calculate road traffic noise following the method described in 2.2 Road traffic noise.\nTable F-1\nCoefficients AR,i,m and BR,i,m for rolling noise and AP,i,m and BP,i,m for propulsion noise\nCategory\nCoefficient\n63\n125\n250\n500\n1 000\n2 000\n4 000\n8 000\n1\nAR\n79,7\n85,7\n84,5\n90,2\n97,3\n93,9\n84,1\n74,3\nBR\n30\n41,5\n38,9\n25,7\n32,5\n37,2\n39\n40\nAP\n94,5\n89,2\n88\n85,9\n84,2\n86,9\n83,3\n76,1\nBP\n– 1,3\n7,2\n7,7\n8\n8\n8\n8\n8\n2\nAR\n84\n88,7\n91,5\n96,7\n97,4\n90,9\n83,8\n80,5\nBR\n30\n35,8\n32,6\n23,8\n30,1\n36,2\n38,3\n40,1\nAP\n101\n96,5\n98,8\n96,8\n98,6\n95,2\n88,8\n82,7\nBP\n– 1,9\n4,7\n6,4\n6,5\n6,5\n6,5\n6,5\n6,5\n3\nAR\n87\n91,7\n94,1\n100,7\n100,8\n94,3\n87,1\n82,5\nBR\n30\n33,5\n31,3\n25,4\n31,8\n37,1\n38,6\n40,6\nAP\n104,4\n100,6\n101,7\n101\n100,1\n95,9\n91,3\n85,3\nBP\n0\n3\n4,6\n5\n5\n5\n5\n5\n4a\nAR\n0\n0\n0\n0\n0\n0\n0\n0\nBR\n0\n0\n0\n0\n0\n0\n0\n0\nAP\n88\n87,5\n89,5\n93,7\n96,6\n98,8\n93,9\n88,7\nBP\n4,2\n7,4\n9,8\n11,6\n15,7\n18,9\n20,3\n20,6\n4b\nAR\n0\n0\n0\n0\n0\n0\n0\n0\nBR\n0\n0\n0\n0\n0\n0\n0\n0\nAP\n95\n97,2\n92,7\n92,9\n94,7\n93,2\n90,1\n86,5\nBP\n3,2\n5,9\n11,9\n11,6\n11,5\n12,6\n11,1\n12\n5\nAR\nBR\nAP\nBP\nTable F-2\nCoefficients ai and bi for studded tyres\nCategory\nCoefficient\n63\n125\n250\n500\n1 000\n2 000\n4 000\n8 000\n1\nai\n0,0\n0,0\n0,0\n2,6\n2,9\n1,5\n2,3\n9,2\nbi\n0,0\n0,0\n0,0\n– 3,1\n– 6,4\n– 14,0\n– 22,4\n– 11,4\nTable F-3\nCoefficients CR,m,k and CP,m,k for acceleration and deceleration\nCategory\nk\nCr\nCp\n1\n1 = crossing\n– 4,5\n5,5\n2 = roundabout\n– 4,4\n3,1\n2\n1 = crossing\n– 4\n9\n2 = roundabout\n– 2,3\n6,7\n3\n1 = crossing\n– 4\n9\n2 = roundabout\n– 2,3\n6,7\n4a\n1 = crossing\n0\n0\n2 = roundabout\n0\n0\n4b\n1 = crossing\n0\n0\n2 = roundabout\n0\n0\n5\n1 = crossing\n2 = roundabout\nTable F-4\nCoefficients αi,m and βm for road surface\nDescription\nMin speed at which it is valid[km/h]\nMaximum speed at which it is valid[km/h]\nCategory\nαm(63 Hz)\nαm(125 Hz)\nαm(250 Hz)\nαm(500 Hz)\nαm(1 kHz)\nαm(2 kHz)\nαm(4 kHz)\nαm(8 kHz)\nßm\nReference road surface\n—\n—\n1\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n2\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n3\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\n1-layer ZOAB\n50\n130\n1\n0,5\n3,3\n2,4\n3,2\n– 1,3\n– 3,5\n– 2,6\n0,5\n– 6,5\n2\n0,9\n1,4\n1,8\n– 0,4\n– 5,2\n– 4,6\n– 3,0\n– 1,4\n0,2\n3\n0,9\n1,4\n1,8\n– 0,4\n– 5,2\n– 4,6\n– 3,0\n– 1,4\n0,2\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\n2-layer ZOAB\n50\n130\n1\n0,4\n2,4\n0,2\n– 3,1\n– 4,2\n– 6,3\n– 4,8\n– 2,0\n– 3,0\n2\n0,4\n0,2\n– 0,7\n– 5,4\n– 6,3\n– 6,3\n– 4,7\n– 3,7\n4,7\n3\n0,4\n0,2\n– 0,7\n– 5,4\n– 6,3\n– 6,3\n– 4,7\n– 3,7\n4,7\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\n2-layer ZOAB (fine)\n80\n130\n1\n– 1,0\n1,7\n– 1,5\n– 5,3\n– 6,3\n– 8,5\n– 5,3\n– 2,4\n– 0,1\n2\n1,0\n0,1\n– 1,8\n– 5,9\n– 6,1\n– 6,7\n– 4,8\n– 3,8\n– 0,8\n3\n1,0\n0,1\n– 1,8\n– 5,9\n– 6,1\n– 6,7\n– 4,8\n– 3,8\n– 0,8\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nSMA-NL5\n40\n80\n1\n1,1\n– 1,0\n0,2\n1,3\n– 1,9\n– 2,8\n– 2,1\n– 1,4\n– 1,0\n2\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n3\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nSMA-NL8\n40\n80\n1\n0,3\n0,0\n0,0\n– 0,1\n– 0,7\n– 1,3\n– 0,8\n– 0,8\n– 1,0\n2\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n3\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nBrushed down concrete\n70\n120\n1\n1,1\n– 0,4\n1,3\n2,2\n2,5\n0,8\n– 0,2\n– 0,1\n1,4\n2\n0,0\n1,1\n0,4\n– 0,3\n– 0,2\n– 0,7\n– 1,1\n– 1,0\n4,4\n3\n0,0\n1,1\n0,4\n– 0,3\n– 0,2\n– 0,7\n– 1,1\n– 1,0\n4,4\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nOptimised brushed down concrete\n70\n80\n1\n– 0,2\n– 0,7\n0,6\n1,0\n1,1\n– 1,5\n– 2,0\n– 1,8\n1,0\n2\n– 0,3\n1,0\n– 1,7\n– 1,2\n– 1,6\n– 2,4\n– 1,7\n– 1,7\n– 6,6\n3\n– 0,3\n1,0\n– 1,7\n– 1,2\n– 1,6\n– 2,4\n– 1,7\n– 1,7\n– 6,6\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nFine broomed concrete\n70\n120\n1\n1,1\n– 0,5\n2,7\n2,1\n1,6\n2,7\n1,3\n– 0,4\n7,7\n2\n0,0\n3,3\n2,4\n1,9\n2,0\n1,2\n0,1\n0,0\n3,7\n3\n0,0\n3,3\n2,4\n1,9\n2,0\n1,2\n0,1\n0,0\n3,7\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nWorked surface\n50\n130\n1\n1,1\n1,0\n2,6\n4,0\n4,0\n0,1\n– 1,0\n– 0,8\n– 0,2\n2\n0,0\n2,0\n1,8\n1,0\n– 0,7\n– 2,1\n– 1,9\n– 1,7\n1,7\n3\n0,0\n2,0\n1,8\n1,0\n– 0,7\n– 2,1\n– 1,9\n– 1,7\n1,7\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nHard elements in herring-bone\n30\n60\n1\n8,3\n8,7\n7,8\n5,0\n3,0\n– 0,7\n0,8\n1,8\n2,5\n2\n8,3\n8,7\n7,8\n5,0\n3,0\n– 0,7\n0,8\n1,8\n2,5\n3\n8,3\n8,7\n7,8\n5,0\n3,0\n– 0,7\n0,8\n1,8\n2,5\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nHard elements not in herring-bone\n30\n60\n1\n12,3\n11,9\n9,7\n7,1\n7,1\n2,8\n4,7\n4,5\n2,9\n2\n12,3\n11,9\n9,7\n7,1\n7,1\n2,8\n4,7\n4,5\n2,9\n3\n12,3\n11,9\n9,7\n7,1\n7,1\n2,8\n4,7\n4,5\n2,9\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nQuiet hard elements\n30\n60\n1\n7,8\n6,3\n5,2\n2,8\n– 1,9\n– 6,0\n– 3,0\n– 0,1\n– 1,7\n2\n0,2\n0,7\n0,7\n1,1\n1,8\n1,2\n1,1\n0,2\n0,0\n3\n0,2\n0,7\n0,7\n1,1\n1,8\n1,2\n1,1\n0,2\n0,0\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nThin layer A\n40\n130\n1\n1,1\n0,1\n– 0,7\n– 1,3\n– 3,1\n– 4,9\n– 3,5\n– 1,5\n– 2,5\n2\n1,6\n1,3\n0,9\n– 0,4\n– 1,8\n– 2,1\n– 0,7\n– 0,2\n0,5\n3\n1,6\n1,3\n0,9\n– 0,4\n– 1,8\n– 2,1\n– 0,7\n– 0,2\n0,5\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5\nThin layer B\n40\n130\n1\n0,4\n– 1,3\n– 1,3\n– 0,4\n– 5,0\n– 7,1\n– 4,9\n– 3,3\n– 1,5\n2\n1,6\n1,3\n0,9\n– 0,4\n– 1,8\n– 2,1\n– 0,7\n– 0,2\n0,5\n3\n1,6\n1,3\n0,9\n– 0,4\n– 1,8\n– 2,1\n– 0,7\n– 0,2\n0,5\n4a\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n4b\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n0,0\n5",
  "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/eudr/2015/996/annex/appendix/F",
    "retrieved_at": "2026-11-01T15:21:38.862218+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."
}