Motorcycle sport is a broad field that encompasses all sporting aspects of motorcycling. The disciplines are not all races or timed-speed events, as several disciplines test a competitor's various riding skills.
Seal most commonly refers to:
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, taxiways, and runways regardless of the surface.
A road surface or pavement is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past, gravel road surfaces, cobblestone and granite setts were extensively used, but these surfaces have mostly been replaced by asphalt or concrete laid on a compacted base course. Road surfaces are frequently marked to guide traffic. Today, permeable paving methods are beginning to be used for low-impact roadways and walkways. Pavements are crucial to countries such as US and Canada, which heavily depend on road transportation. Therefore, research projects such as Long-Term Pavement Performance are launched to optimize the life-cycle of different road surfaces.
Supermoto or Supermotard is a form of motorcycle racing held on race tracks that alternate between three kinds of track surfaces: the hard packed dirt of flat track, the irregular jumps and obstacles of motocross, and the paved tarmac of road racing. Supermoto was originally conceived by Gavin Trippe in 1979 as a segment of the TV show Wide World of Sports. It was something like an all-star game, in which the best riders from the three separate genres of motorcycle racing could temporarily leave their normal race class to come together and compete for the title of best all around racer. Today supermoto is a distinct genre of its own and riders in the other classes do not routinely cross over into supermoto.
Asphalt concrete is a composite material commonly used to surface roads, parking lots, airports, as well as the core of embankment dams. It consists of mineral aggregate bound together with asphalt, laid in layers, and compacted. The process was refined and enhanced by Belgian inventor and U.S. immigrant Edward de Smedt.
Macadam is a type of road construction, pioneered by Scottish engineer John Loudon McAdam around 1820, in which single-sized crushed stone layers of small angular stones are placed in shallow lifts and compacted thoroughly. A binding layer of stone dust may form; it may also, after rolling, be covered with a binder to keep dust and stones together. The method simplified what had been considered state of the art at that point.
Cobblestone is a natural building material based on cobble-sized stones, and is used for pavement roads, streets, and buildings.
Autocross is a timed competition in which drivers navigate one at a time through a defined course on either a sealed or an unsealed surface. It is a form of motorsports that emphasizes safe competition and active participation. Autocross differs from road racing and oval racing in that generally there is only one car on the track, driving against the clock rather than other cars. As an entry-level motorsport it provides a stepping stone for drivers looking to move into other more competitive and possibly expensive forms of racing.
Tar is a dark brown or black viscous liquid of hydrocarbons and free carbon, obtained from a wide variety of organic materials through destructive distillation. Tar can be produced from coal, wood, petroleum, or peat. Production and trade in pine-derived tar was a major contributor in the economies of Northern Europe and Colonial America. Its main use was in preserving wooden sailing vessels against rot. The largest user was the Royal Navy. Demand for tar declined with the advent of iron and steel ships.
The River Colne is a small river that runs through Essex, England and passes through Colchester. It is not a tributary of any other river, instead having an estuary that joins the sea near Brightlingsea.
A gravel road is a type of unpaved road surfaced with gravel that has been brought to the site from a quarry or stream bed. They are common in less-developed nations, and also in the rural areas of developed nations such as Canada and the United States. In New Zealand, and other Commonwealth countries, they may be known as 'metal roads'. They may be referred to as 'dirt roads' in common speech, but that term is used more for unimproved roads with no surface material added. If well constructed and maintained, a gravel road is an all-weather road.
The airport apron or apron, also incorrectly referred to as the tarmac, is the area of an airport where aircraft are parked, unloaded or loaded, refueled, or boarded. Although the use of the apron is covered by regulations, such as lighting on vehicles, it is typically more accessible to users than the runway or taxiway. However, the apron is not usually open to the general public and a permit may be required to gain access. By extension, the term "apron" is also used to identify the air traffic control position responsible for coordinating movement on this surface at busier airports.
Chipseal is a pavement surface treatment that combines one or more layer(s) of asphalt with one or more layer(s) of fine aggregate. In the United States, chipseals are typically used on rural roads carrying lower traffic volumes, and the process is often referred to as asphaltic surface treatment. In Australia and New Zealand chipsealing is used on a larger percentage of roads, both rural and urban. This type of surface has a variety of other names including tar and chip, sprayed seal or surface dressing.
Tarmac Group Limited was a multinational building materials company headquartered in Wolverhampton, United Kingdom. It produced road surfacing and heavy building materials including aggregates, concrete, cement and lime, as well as operating as a road construction and maintenance subcontractor.
Otta seal is a type of bituminous surface treatment that was developed by the Norwegian Road Research Laboratory (NRRL). Its name is based on the location in which it was created, the Otta Valley. Otta seal was developed to be used as a temporary surfacing on new roads; however, after seeing its strength, it has been used as permanent roads as well.
BriSCA Formula 2 Stock Cars is a class of single seater auto racing in the UK. Cars are custom-built and race on oval tracks of either shale or tarmac of approximately a quarter-mile in length. The tracks they race on are surrounded by either armco or post and cable fences to keep the cars on the track. Racing involves contact, drivers are allowed to push, punt or spin fellow competitors out of the way. The cars are very strong and are of an open wheel design, but are designed with the contact element in mind, with front and rear bumpers and a sturdy roll cage.
Bar grip tyres, or 'NDT' in US military parlance, are an early tyre tread pattern developed for off-road use.
The Kampala–Hoima Road is a road in the Central and Western regions of Uganda, connecting the cities of Kampala and Hoima. A section of this road, between Namungoona and Busunju, is being developed into the Kampala–Busunju Expressway.
