2. For road traffic noise indicators the assessment method “Calculation of road traffic noise” (Department of Transport, 7 June 1988, HMSO)(1) must be used, adapted using the report “Method for converting the UK road traffic noise index LA10,18h to the EU noise indices for road noise mapping” (DEFRA, 24 January 2006)(2).
ISBN 0115508473.
Prepared by TRL Limited and Casella Stanger, Document Reference st/05/91/AGG04442.