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Macadam is a type of road construction pioneered by Scottish engineer John Loudon McAdam c. 1820, in which crushed stone is placed in shallow, convex layers and compacted thoroughly. A binding layer of stone dust (crushed stone from the original material) may form; it may also, after rolling, be covered with a cement or bituminous binder to ...
Tarmacadam is a concrete road surfacing material made by combining tar and macadam (crushed stone and sand), patented by Welsh inventor 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.
Pennsylvania Route 724 (PA 724) is a 30-mile (48 km) road in the U.S. commonwealth of Pennsylvania that runs from U.S. Route 422 (US 422) in Sinking Spring southeast to PA 23 near Phoenixville. PA 724 travels through Berks and Chester counties. The route runs through the southern suburbs of Reading, passing through Shillington and Kenhorst.
Asphalt batch mix plant A machine laying asphalt concrete, fed from a dump truck. Asphalt concrete (commonly called asphalt, [1] blacktop, or pavement in North America, and tarmac or bitumen macadam in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, and the core of embankment dams. [2]
Google Maps' location tracking is regarded by some as a threat to users' privacy, with Dylan Tweney of VentureBeat writing in August 2014 that "Google is probably logging your location, step by step, via Google Maps", and linked users to Google's location history map, which "lets you see the path you've traced for any given day that your ...
John Loudon McAdam, 1830, National Gallery, London. John Loudon McAdam (23 September 1756 [1] – 26 November 1836) 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 particle size and predetermined structure, that would be more durable and less muddy than soil-based tracks.
Asphalt road in Norway A road is a thoroughfare , route, or way on land between two places that has been surfaced or otherwise improved to allow travel by foot or some form of conveyance , including a motor vehicle , cart, bicycle, or horse.
Pennsylvania Route 63 (PA 63) is a 37.4-mile-long (60.2 km) state highway located in the Philadelphia, Pennsylvania, area.The western terminus of the route is at PA 29 in Green Lane, Montgomery County.
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