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Macadamise
Macadam is a type of road construction pioneered by Scottish engineer John Loudon McAdam , 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 keep dust and stones together. The method simplified what had been considered state-of-the-art at that point. Predecessors Pierre-Marie-Jérôme Trésaguet Pierre-Marie-Jérôme Trésaguet is sometimes considered the first person to bring post-Roman science to road building. A Frenchman from an engineering family, he worked paving roads in Paris from 1757 to 1764. As chief engineer of road construction of Limoges, he had opportunity to develop a better and cheaper method of road construction. In 1775, Tresaguet became engineer-general and presented his answer for road improvement in France, which soon became standard practice there. Paperback Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brickwork
Brickwork is masonry produced by a bricklayer, using bricks and mortar. Typically, rows of bricks called '' courses'' are laid on top of one another to build up a structure such as a brick wall. Bricks may be differentiated from blocks by size. For example, in the UK a brick is defined as a unit having dimensions less than and a block is defined as a unit having one or more dimensions greater than the largest possible brick. Brick is a popular medium for constructing buildings, and examples of brickwork are found through history as far back as the Bronze Age. The fired-brick faces of the ziggurat of ancient Dur-Kurigalzu in Iraq date from around 1400 BC, and the brick buildings of ancient Mohenjo-daro in modern day Pakistan were built around 2600 BC. Much older examples of brickwork made with dried (but not fired) bricks may be found in such ancient locations as Jericho in Palestine, Çatal Höyük in Anatolia, and Mehrgarh in Pakistan. These structures have survived fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toll Road
A toll road, also known as a turnpike or tollway, is a public or private road for which a fee (or ''Toll (fee), toll'') is assessed for passage. It is a form of road pricing typically implemented to help recoup the costs of road construction and Road maintenance, maintenance. Toll roads have existed in some form since Classical antiquity, antiquity, with tolls levied on passing travelers on foot, wagon, or horseback; a practice that continued with the automobile, and many modern tollways charge fees for motor vehicles exclusively. The amount of the toll usually varies by vehicle type, weight, or number of axles, with freight trucks often charged higher rates than cars. Tolls are often collected at toll plazas, toll booths, toll houses, toll stations, toll bars, toll barriers, or toll gates. Some toll collection points are automatic, and the user deposits money in a machine which opens the gate once the correct toll has been paid. To cut costs and minimise time delay, many tolls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boonsboro, Maryland
Boonsboro is a town in Washington County, Maryland, United States, located at the foot of South Mountain. It nearly borders Frederick County and is proximate to the Antietam National Battlefield. The population was 3,779 at the 2020 census. History Local lore asserts Boonsboro was founded by George Boone, a cousin of Daniel Boone, and was originally named "Margaretsville" after his wife, Margaret. The town was incorporated as Boonesborough in 1831. Local newspapers and villagers preferred the name Boonsboro. The former name was used on some documents as late as 1903. Boonsboro was a key town during the American Civil War. Two battles were fought in its present borders. The town was also used to keep wounded soldiers after the Battle of Antietam in September 1862. Southeast of the town was the site of the Battle of South Mountain. Boonsboro lies on what used to be the National Road. Today it is known as either the Old National Pike or Alt-U.S. 40. In Boonsboro, it is M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hagerstown, Maryland
Hagerstown is a city in Washington County, Maryland, United States, and its county seat. The population was 43,527 at the 2020 United States census, 2020 census. Hagerstown ranks as Maryland's List of municipalities in Maryland, sixth-most populous incorporated city and is the most populous city in the Western Maryland, Maryland Panhandle. Hagerstown anchors the Hagerstown metropolitan area extending into West Virginia. It makes up the northwesternmost portion of the Washington–Baltimore combined statistical area in the heart of the Great Appalachian Valley. The population of the metropolitan area in 2020 was 293,844. Greater Hagerstown was the fastest-growing metropolitan area in the state of Maryland and among the fastest growing in the United States, as of 2009. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carriage
A carriage is a two- or four-wheeled horse-drawn vehicle for passengers. In Europe they were a common mode of transport for the wealthy during the Roman Empire, and then again from around 1600 until they were replaced by the motor car around 1900. They were generally owned by the rich, but second-hand private carriages became common public transport, the equivalent of modern cars used as taxis. Carriage suspensions are by leather strapping or, on those made in recent centuries, steel springs. There are numerous names for different types. Two-wheeled carriages are usually owner-driven. Coaches are a special category within carriages. They are carriages with four corner posts and a fixed roof. Two-wheeled war chariots and transport vehicles such as four-wheeled wagons and two-wheeled carts were forerunners of carriages. In the 21st century, horse-drawn carriages are occasionally used for public parades by royalty and for traditional formal ceremonies. Simplified modern versio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Table
The water table is the upper surface of the phreatic zone or zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with groundwater, which may be fresh, saline, or brackish, depending on the locality. It can also be simply explained as the depth below which the ground is saturated. The portion above the water table is the vadose zone. It may be visualized as the "surface" of the subsurface materials that are saturated with groundwater in a given vicinity. In coarse soils, the water table settles at the surface where the water Hydraulic head, pressure head is equal to the atmospheric pressure (where gauge pressure = 0). In soils where capillary action is strong, the water table is pulled upward, forming a capillary fringe. The groundwater may be from precipitation or from more distant groundwater flowing into the aquifer. In areas with sufficient precipitation, water infiltrates through pore spaces in the soil, passing through t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turnpike Trust
Turnpike trusts were bodies set up by individual Acts of Parliament in the United Kingdom, Acts of Parliament, with powers to collect road toll road, tolls for maintaining the principal roads in Kingdom of Great Britain, Britain from the 17th but especially during the 18th and 19th centuries. At the peak, in the 1830s, over 1,000 trusts administered around of turnpike road in England and Wales, taking tolls at almost 8,000 toll-gates and side-bars. During the early 19th century the concept of the turnpike trust was adopted and adapted to manage roads within the British Empire (Ireland, Canada, Australia, New Zealand, India, and South Africa) and in the United States. Turnpikes declined with the Railway mania, coming of the railways and then the Local Government Act 1888 gave responsibility for maintaining main roads to county councils and county borough councils. Etymology The term "turnpike" originates from the similarity of the gate used to control access to the road, to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristol
Bristol () is a City status in the United Kingdom, cathedral city, unitary authority area and ceremonial county in South West England, the most populous city in the region. Built around the River Avon, Bristol, River Avon, it is bordered by the ceremonial counties of Gloucestershire to the north and Somerset to the south. The county is in the West of England combined authority area, which includes the Greater Bristol area (List of urban areas in the United Kingdom, eleventh most populous urban area in the United Kingdom) and nearby places such as Bath, Somerset, Bath. Bristol is the second largest city in Southern England, after the capital London. Iron Age hillforts and Roman villas were built near the confluence of the rivers River Frome, Bristol, Frome and Avon. Bristol received a royal charter in 1155 and was historic counties of England, historically divided between Gloucestershire and Somerset until 1373 when it became a county corporate. From the 13th to the 18th centur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scottish Lowlands
The Lowlands ( or , ; , ) is a cultural and historical region of Scotland. The region is characterised by its relatively flat or gently rolling terrain as opposed to the mountainous landscapes of the Scottish Highlands. This area includes cities like Edinburgh and Glasgow and is known for its fertile farmland, historic sites, and urban centres. It is the more populous and industrialised part of Scotland compared to the sparsely populated Highlands. Culturally, the Lowlands and the Scottish Highlands, Highlands diverged from the Late Middle Ages into the modern period, when Scots language, Lowland Scots replaced Scottish Gaelic throughout most of the Lowlands. Geography Geographically, Scotland is divided into three distinct areas: the Scottish Highlands, Highlands, the Central plain (Central Belt, in the Central Lowlands), and the Southern Uplands. The Lowlands cover roughly the latter two. The northeast plain is also "low-land", both geographically and culturally, but in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
