Tarmacadam
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Tarmacadam or tarmac is a road surfacing material made by combining tar and macadam, patented by Welsh inventor Edgar Purnell Hooley in 1902. It is a more durable and dust-free enhancement of simple c
Workers tarring a road in London during World War I
Kabul Kandahar Highway in 2003
John Loudon McAdam
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John Loudon McAdam was a Scottish civil engineer and road-builder. He invented a new process, "macadamisation", for building roads with a smooth hard surface, using controlled materials of mixed parti
Tarmacadam
…Edgar Purnell Hooley in 1902. It is a more durable and dust-free enhancement of simple compacted stone macadam surfaces invented by Scottish engineer John Loudon McAdam in the early 19th century. The terms "tarmacadam" and "tarmac" are also used for a variety of other materials, including tar-grouted macadam, bituminous…
John Loudon McAdam, 1830, National Gallery, London
Memorial stone to John Loudon McAdam