Road surface layers of smaller stones, until the road surface was composed of small stones compacted into a hard, durable surface. "Road metal" later became the name of stone chippings mixed with tar to form the road surfacing material tarmac. A road of such material is called a "metalled road" in Britain, a "paved road" in Canada and the US, or a "sealed road" in parts of Canada, Australia and New Zealand. A granular surface can be used with a traffic volume where the annual average daily traffic is 1,200 vehicles per day or less. There is some structural strength if the
The Fine Art of Surfacing around America leading up to "The Fine Art of Surfacing", drumming up publicity for the band in the States. During this time the Rats learned much about both American life and breaking into the American music market. This is a recurring theme on the album, sometimes taking a serious approach in looking at American society, in songs like "I Don't Like Mondays" and "Diamond Smiles," while other times looking at it in a downright silly and mocking manner in songs like "Nothing Happened Today" and "Having My Picture Taken," the album takes aim at 1979 life in classic punk style.