Road and airfield surface characteristics - Part 2: Procedure for determining the skid resistance of a pavement surface using a device with longitudinal controlled slip (LFCRNL): ROAR (Road Analyser and Recorder of Norsemeter); German version CEN/TS 15901-2:2009
Deutsches Institut Fur Normung E.V. (German National Standard) , 03/01/2010
