Tarmacadam Tarmacadam Tarmacadam is a road surfacing material made by combining macadam surfaces, tar, and sand, patented by Welsh inventor Edgar Purnell Hooley in 1902. The terms "tarmacadam" and tarmac are also used, with varying degrees of correctness, for a variety of other materials, including tar-grouted macadam, bituminous surface treatments, and modern asphalt concrete. The term is also often used to describe airport aprons (also referred to as "ramps"), taxiways, and runways regardless of the surface. Pioneered by Scottish engineer in the 1820s, macadam roads are prone to rutting and generating dust. Methods to stabilize macadam surfaces with tar date back
Happiness Is the Road to share these on any networks. The album was originally scheduled to be just a single album. Those tracks became "Volume 2: The Hard Shoulder." In the middle of the recording sessions, the band experienced a major bit of inspiration and songwriting. They decided to follow their instincts, and wound up producing what would eventually become "Volume 1: Essence." These tracks hang together loosely as a concept, and are much mellower than the harder rocking -and non-conceptual- Volume 2. Fans were treated to double the material, and two completely different vibes for their investment. All music written by Marillion, lyrics