Planer : (1) A self-propelled machine which removes a controlled depth of pavement material. (2) A device for incorporating a cutter blade which is pulled or propelled along a road to smooth the surface and improve the riding quality
Peter Milne and Kieran Sharp, ARRB Group, and Bob Ungers, consultant, Austroads Glossary of Terms (4th Ed.), Austroads Ltd., Sydney, NSW, Australia 2010. http://www.bicyclensw.org.au/files/u1/Austroads_Gl ossary_of_Terms_4th_edition.pdf (Road Trfc and Transp Sfty - Brit) {529}