Hardstand
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A hardstand (also hard standing and hardstanding in British English) is a paved or hard-surfaced area on which vehicles, such as cars or aircraft, may be parked. The term may also be used informally to refer to an area of compacted hard surface such as
macadam Macadam is a type of road construction, pioneered by Scottish engineer John Loudon McAdam around 1820, in which crushed stone is placed in shallow, convex layers and compacted thoroughly. A binding layer of stone dust (crushed stone from the o ...
.


Uses

Hardstands are found at
airport An airport is an aerodrome with extended facilities, mostly for commercial air transport. Airports usually consists of a landing area, which comprises an aerially accessible open space including at least one operationally active surface ...
s, military facilities,
freight terminal A freight terminal is a processing node for freight. They may include airports, seaports, container ports, goods stations, railroad terminals and trucking terminals. As most freight terminals are located at ports, many cargo containers can be seen ...
s, and other facilities where heavy vehicles need to be parked for significant periods of time. They also exist, paved or unpaved, at places where road vehicles are parked. At airports, hardstands enable
airliner An airliner is a type of aircraft for transporting passengers and air cargo. Such aircraft are most often operated by airlines. Although the definition of an airliner can vary from country to country, an airliner is typically defined as an ...
s to board or offload passengers using stair trucks or mobile ramps, and (on smaller aircraft) built-in airstairs, without needing dedicated
jet bridge A jet bridge (also termed jetway, jetwalk, airgate, gangway, aerobridge/airbridge, skybridge, finger, airtube, expedited suspended passenger entry system (E-SPES), or its official industry name passenger boarding bridge (PBB)) is an enclosed, ...
s.


Purpose

The purpose of a hardstand is to provide a strong surface for stationary vehicles, including where the vehicles may otherwise sink into the ground if left for extended periods of time. A hardstand is configured with a slope for drainage, which with unpaved surfaces serves to slow deterioration.


Construction

Hardstands are paved with materials including concrete heavy-duty pavers, which give maintenance flexibility over other products as well as strength for the life of the project; or
asphalt Asphalt, also known as bitumen (, ), is a sticky, black, highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term a ...
; or
macadam Macadam is a type of road construction, pioneered by Scottish engineer John Loudon McAdam around 1820, in which crushed stone is placed in shallow, convex layers and compacted thoroughly. A binding layer of stone dust (crushed stone from the o ...
. To support the weight of heavy vehicles such as large
airplane An airplane or aeroplane (informally plane) is a fixed-wing aircraft that is propelled forward by thrust from a jet engine, propeller, or rocket engine. Airplanes come in a variety of sizes, shapes, and wing configurations. The broad spe ...
s,
tank A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and good battlefield mobility provided by tracks and a powerful engin ...
s, or heavy
truck A truck or lorry is a motor vehicle designed to transport cargo, carry specialized payloads, or perform other utilitarian work. Trucks vary greatly in size, power, and configuration, but the vast majority feature body-on-frame construction ...
s, the paving is usually thicker and more durable than in automobile
parking lot A parking lot (American English) or car park (British English), also known as a car lot, is a cleared area intended for parking vehicles. The term usually refers to an area dedicated only for parking, with a durable or semi-durable surface ...
s.


See also

*
Airport apron The airport apron, apron, flight line, ramp, or tarmac is the area of an airport where aircraft are parked, unloaded or loaded, refueled, boarded, or maintained. Although the use of the apron is covered by regulations, such as lighting on vehic ...


References

{{Reflist Architectural elements Civil engineering