Road spline, 2 lane motorway slip-road, 70mph with no traffic level. Designed to be 0.2m over baseboard level for correct car height. Texture derived from those by cgtextures.com and Andi06. To diagram 1005.1, 1012.1 & 1012.4. See http://www.legislation.gov.uk/uksi/2002/3113/schedule/6/made for details.