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
Material culture of the Manasir من مزارع في سور) on Sur Island] Material culture of the Manasir The material culture of the Manasir is very basic and primarily relies on the by-products of palm tree cultivation (cf. Date cultivation in Dar al-Manasir). Date trees not only constitute the main source of income and an important supply of nutrition in Dar al-Manasir, but the Manasir also make intelligent use of all different parts of the palm tree. From it they produce diverse household items, garden tools and building material for their traditional mud houses. (cf. Architecture in Dar al-Manasir). What follows is a list of raw