The world's largest airlines can be defined in several ways. American Airlines Group is the largest by its fleet size, revenue, profit, passengers carried and revenue passenger mile. Delta Air Lines is the largest by assets value and market capitalization. Lufthansa Group is the largest by number of employees, FedEx Express by freight tonne-kilometers, Ryanair by number of international passengers carried and Turkish Airlines by number of countries served.
On August 30, 2012, Hawaiian filed an application with the U.S. Department of Transportation for a nonstop route between Kona and Tokyo-Haneda.[41] This would fill a void that Japan Airlines left when it ceased service to Kona nearly two years earlier.[41] However, the US Department of Transportation rejected the airline's application to begin service.[42]
A corduroy or beach ladder (or board and chain) is an array of planks (usually hardwood or treated timber) laid close together and perpendicular to the direction of traffic flow, and secured at each end by a chain or cable to form a pathway or ramp over the sand dune. Corduroys are cheap and easy to construct and quick to deploy or relocate. They are commonly used for pedestrian access paths and light duty vehicular access ways. They naturally conform to the shape of the underlying beach or dune profile, and adjust well to moderate erosion, especially longshore drift. However, they can cease to be an effective access surface if they become buried or undermined by erosion by surface runoff coming from the beach head. If the corduroy is not wide enough for vehicles using it, the sediment on either side may be displaced creating a spoon drain that accelerates surface run off and can quickly lead to serious erosion. Significant erosion of the sediment beside and under the corduroy can render it completely ineffective and make it dangerous to pedestrian users who may fall between the planks.
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The refund application(s) is only for bookings made on this website. Details please refer to the Fare Note of your ticket. For itinerary to/from USA: A no-penalty 100% refund will be given if the refund application is made within 24 hours of purchase and if the ticket purchase was made at least one week (168 hours) prior to the first flight departure.
Among the first countries to have regular airlines in Latin America and the Caribbean were Bolivia with Lloyd Aéreo Boliviano,[57] Cuba with Cubana de Aviación, Colombia with Avianca (the first airline established in the Americas), Argentina with Aerolineas Argentinas, Chile with LAN Chile (today LATAM Airlines), Brazil with Varig, Dominican Republic with Dominicana de Aviación, Mexico with Mexicana de Aviación, Trinidad and Tobago with BWIA West Indies Airways (today Caribbean Airlines), Venezuela with Aeropostal, Puerto Rico with Puertorriquena; and TACA based in El Salvador and representing several airlines of Central America (Costa Rica, Guatemala, Honduras and Nicaragua). All the previous airlines started regular operations well before World War II. Puerto Rican commercial airlines such as Prinair, Oceanair, Fina Air and Vieques Air Link came much after the second world war, as did several others from other countries like Mexico's Interjet and Volaris, Venezuela's Aserca Airlines and others.
Constructive waves move material up the beach while destructive waves move the material down the beach. During seasons when destructive waves are prevalent, the shallows will carry an increased load of sediment and organic matter in suspension. On sandy beaches, the turbulent backwash of destructive waves removes material forming a gently sloping beach. On pebble and shingle beaches the swash is dissipated more quickly because the large particle size allows greater percolation, thereby reducing the power of the backwash, and the beach remains steep. Compacted fine sediments will form a smooth beach surface that resists wind and water erosion.

Codesharing is the most common type of airline partnership; it involves one airline selling tickets for another airline's flights under its own airline code. An early example of this was Japan Airlines' (JAL) codesharing partnership with Aeroflot in the 1960s on Tokyo–Moscow flights; Aeroflot operated the flights using Aeroflot aircraft, but JAL sold tickets for the flights as if they were JAL flights. This practice allows airlines to expand their operations, at least on paper, into parts of the world where they cannot afford to establish bases or purchase aircraft. Another example was the Austrian–Sabena partnership on the Vienna–Brussels–New York/JFK route during the late '60s, using a Sabena Boeing 707 with Austrian livery.
Fabric ramps are commonly employed by the military for temporary purposes where the underlying sediment is stable and hard enough to support the weight of the traffic. A sheet of porous fabric is laid over the sand to stabilize the surface and prevent vehicles from bogging. Fabric Ramps usually cease to be useful after one tidal cycle as they are easily washed away, or buried in sediment.

In order to protect yourself in the Cyber world, you should validate whether or not the website you're visiting is indeed a legitimate website. EVA Air website (www.evaair.com), EVA Sky Shop web-site (www.shopeva.com) and EVA Air mobile website (m.evaair.com) are secure site with the GeoTrust server Digital ID – of which enable secure communications between your browser and our website.


In August 2007, the Seattle Seahawks became the second sports team to begin using Hawaiian Airlines to travel to games. The Oakland Raiders, also of the NFL, have been flying Hawaiian Airlines since the 1990s. The two teams fly on Hawaiian's Boeing 767s to and from all their games. Two of Hawaiian's Boeing 767 aircraft have been fitted with decals of logos from the Seahawks and the Raiders.
Ocean beaches are habitats with organisms adapted to salt spray, tidal overwash, and shifting sands. Some of these organisms are found only on beaches. Examples of these beach organisms in the southeast US include plants like sea oats, sea rocket, beach elder, beach morning glory (Ipomoea pes-caprae), and beach peanut, and animals such as mole crabs (Hippoidea), coquina clams (Donax), ghost crabs, and white beach tiger beetles.[2]
When you book or purchase peripheral services (e.g. car rental, local transportation, accommodation, or other related products) through the EVA AIR web-site, EVA AIR mobile web, the EVA Sky Shop web-site and the EVA Sky Shop App, as the process may be completed through a third-party transaction platform, hence the personal information and the finance-related information you input may be collected by suppliers of related travel products for subsequent service provision.
Hawaiian Holdings revealed on July 17, 2012, that it had signed a Letter of Intent to acquire turboprop ATR 42 aircraft with the aim of establishing a subsidiary carrier to serve routes not currently in Hawaiian's neighbor island system.[69] In December 2012 it was announced that Empire Airlines would operate the aircraft on behalf of Hawaiian.[70] A fourth ATR 42 aircraft was acquired in June 2018.[71]

Some beaches have man-made infrastructure, such as lifeguard posts, changing rooms, showers, shacks and bars. They may also have hospitality venues (such as resorts, camps, hotels, and restaurants) nearby. Wild beaches, also known as undeveloped or undiscovered beaches, are not developed in this manner. Wild beaches can be appreciated for their untouched beauty and preserved nature.
EVA AIR will follow the guidelines for “ Categories of personal information collected” in using the e-mail addresses collected from you to deliver relevant information that you have agreed to receive, including transaction information, services and special privileges, various information notice of Infinity MileageLands such as mileage statement, card tier expired or mileage expired letter, notice of special privileges for member only, etc. and will make known on the e-mail that it is sent by EVA AIR. Our email may contain electronic images known as Web Beacons that allow us to know whether and how many times, our email are opend and verify any click through to links within the email. The Web Beacons will be deleted when you delete the email.
Financial transactions and authorization: the finance-related information provided by passengers in their ticket or all kind of ancillary services purchase will be submitted to respective financial institution in the ticket purchase process (e.g. (ex: preorder, on-line shop or duty free) for credit card authorization or bank transfer) before completing a ticket purchase.

Air transport agreement Bermuda Agreement (UK-US, 1946-78) Bermuda II Agreement (UK-US, 1978-2008) China-US Cross-Strait charter (China-Taiwan) Beijing Convention Cape Town Treaty Chicago Convention Convention on the Marking of Plastic Explosives European Common Aviation Area Flight permit Freedoms of the air Hague Hijacking Convention Hague Protocol ICAO Montreal Convention Open skies (EU–US Open Skies Agreement) Paris Convention of 1919 Rome Convention Sabotage Convention Tokyo Convention Warsaw Convention


The first new airliner ordered by Imperial Airways, was the Handley Page W8f City of Washington, delivered on 3 November 1924.[15] In the first year of operation the company carried 11,395 passengers and 212,380 letters. In April 1925, the film The Lost World became the first film to be screened for passengers on a scheduled airliner flight when it was shown on the London-Paris route.
If a particular city has two or more airports, market forces will tend to attract the less profitable routes, or those on which competition is weakest, to the less congested airport, where slots are likely to be more available and therefore cheaper. For example, Reagan National Airport attracts profitable routes due partly to its congestion, leaving less-profitable routes to Baltimore-Washington International Airport and Dulles International Airport.
On January 5, 2015, Hawaiian refiled its previously rejected application with the U.S. Department of Transportation (DOT) for the Kona-Haneda route with service, if approved, to begin in June. The request was prompted by a DOT decision in December 2014 to review the public interest in Delta Air Lines' Seattle-Tokyo route after Delta reduced the frequency of those flights from daily to seasonal.[49] On March 31, DOT again denied the request, opting instead to allow Delta to continue operating the route, with American Airlines taking over if Delta's planned service continued to fail.[50]

Hawaiian began acquiring Boeing 717 aircraft for operation on the Neighbor Island network in February 2001.[67] On June 4, 2008, the airline announced that it had agreed to lease an additional four 717 airplanes to meet demand due to the shutdown of Aloha Airlines' passenger operations and the closing of ATA Airlines, with deliveries between September and the end of 2008.[68]
On 25 August 1919, the company used DH.16s to pioneer a regular service from Hounslow Heath Aerodrome to Le Bourget, the first regular international service in the world. The airline soon gained a reputation for reliability, despite problems with bad weather, and began to attract European competition. In November 1919, it won the first British civil airmail contract. Six Royal Air Force Airco DH.9A aircraft were lent to the company, to operate the airmail service between Hawkinge and Cologne. In 1920, they were returned to the Royal Air Force.[7]
Each transaction may only purchase a total of 9 tickets (not including infant tickets) and must contain at least 1 adult (over 16 years old), each adult may only bring 1 infant (Infant does not occupy a seat, and must be under the age of 2 while traveling.) and 1 child, or at most 3 children. Please contact our reservation & ticketing staff if you wish to book a child or infant ticket only.
Although Germany lacked colonies, it also began expanding its services globally. In 1931, the airship Graf Zeppelin began offering regular scheduled passenger service between Germany and South America, usually every two weeks, which continued until 1937.[17] In 1936, the airship Hindenburg entered passenger service and successfully crossed the Atlantic 36 times before crashing at Lakehurst, New Jersey, on May 6, 1937.[18] In 1938, a weekly air service from Berlin to Kabul, Afghanistan, started operating.[19]
Airline financing is quite complex, since airlines are highly leveraged operations. Not only must they purchase (or lease) new airliner bodies and engines regularly, they must make major long-term fleet decisions with the goal of meeting the demands of their markets while producing a fleet that is relatively economical to operate and maintain; comparably Southwest Airlines and their reliance on a single airplane type (the Boeing 737 and derivatives), with the now defunct Eastern Air Lines which operated 17 different aircraft types, each with varying pilot, engine, maintenance, and support needs.
Each operator of a scheduled or charter flight uses an airline call sign when communicating with airports or air traffic control centres. Most of these call-signs are derived from the airline's trade name, but for reasons of history, marketing, or the need to reduce ambiguity in spoken English (so that pilots do not mistakenly make navigational decisions based on instructions issued to a different aircraft), some airlines and air forces use call-signs less obviously connected with their trading name. For example, British Airways uses a Speedbird call-sign, named after the logo of its predecessor, BOAC, while SkyEurope used Relax.

Inter-Island Airways (Hawaiian: Hui Mokulele Piliʻāina), the forerunner of the airline which is now known as Hawaiian Airlines, was incorporated on January 30, 1929. Inter-Island Airways, a subsidiary of Inter-Island Steam Navigation Company, began operations on October 6, 1929, with a Bellanca CH-300 Pacemaker, providing short sightseeing flights over Oʻahu.[14][15] Scheduled service began a month later on November 11 using Sikorsky S-38s with a flight from Honolulu to Hilo, via intermediary stops on Molokaʻi and Maui.[16]
Codesharing is the most common type of airline partnership; it involves one airline selling tickets for another airline's flights under its own airline code. An early example of this was Japan Airlines' (JAL) codesharing partnership with Aeroflot in the 1960s on Tokyo–Moscow flights; Aeroflot operated the flights using Aeroflot aircraft, but JAL sold tickets for the flights as if they were JAL flights. This practice allows airlines to expand their operations, at least on paper, into parts of the world where they cannot afford to establish bases or purchase aircraft. Another example was the Austrian–Sabena partnership on the Vienna–Brussels–New York/JFK route during the late '60s, using a Sabena Boeing 707 with Austrian livery.
The musical next opened at the Drury Lane Theatre, Oakbrook, Illinois in June 2015 (previews). Again directed by Schaeffer, Shoshana Bean plays Cee Cee and Whitney Bashor plays Bertie.[13] The choreographer is Lorin Latarro, with scenic design by Derek McLane, lighting design by Howell Binkley, costume design by Alejo Vietti and sound design by Kai Harada.[14]
It is 1958; a rich little girl, Hillary, meets child performer C.C., under the boardwalk on the beach in Atlantic City, New Jersey. Hillary is lost and C.C. is hiding from her overbearing stage mother. They become fast friends, growing up and bonding through letters of support to each other. A grown-up Hillary goes on to become a human rights lawyer, while C.C.'s singing career is not exactly taking off. They write to each other regularly and give updates on their lives. Hillary shows up at the New York City dive bar where C.C. is performing, their first meeting since Atlantic City. She moves in with C.C. and gets a job with the ACLU. C.C. is now performing singing telegrams, leading to a job offer from John, the artistic director of the Falcon Players, after she sings his birthday telegram.

World War II, like World War I, brought new life to the airline industry. Many airlines in the Allied countries were flush from lease contracts to the military, and foresaw a future explosive demand for civil air transport, for both passengers and cargo. They were eager to invest in the newly emerging flagships of air travel such as the Boeing Stratocruiser, Lockheed Constellation, and Douglas DC-6. Most of these new aircraft were based on American bombers such as the B-29, which had spearheaded research into new technologies such as pressurization. Most offered increased efficiency from both added speed and greater payload.[32][33]


Infant does not occupy a seat, and must be under the age of 2 while traveling. Each purchase is limited to 9 tickets (not including infant tickets), and must contain at least 1 adult(over the age of 16). Each adult may only bring 1 infant and 1 child. For passenger traveling with infant, kindly contact your local reservation office for bassinet seat selection, subjected to availability. Some airlines do not offer infant fares (e.g. Alaska Airlines, etc.). You may purchase adult ticket first via this website, and then seek infant ticket through other channels.
A beach is an unstable environment that exposes plants and animals to changeable and potentially harsh conditions. Some animals burrow into the sand and feed on material deposited by the waves. Crabs, insects and shorebirds feed on these beach dwellers. The endangered piping plover and some tern species rely on beaches for nesting. Sea turtles also bury their eggs in ocean beaches. Seagrasses and other beach plants grow on undisturbed areas of the beach and dunes.
At the same time, Juan Trippe began a crusade to create an air network that would link America to the world, and he achieved this goal through his airline, Pan American World Airways, with a fleet of flying boats that linked Los Angeles to Shanghai and Boston to London. Pan Am and Northwest Airways (which began flights to Canada in the 1920s) were the only U.S. airlines to go international before the 1940s.
All inter-island passengers on Hawaiian Airlines should check-in at least 90 minutes prior to scheduled departure. Passengers should plan to check-in for trans-pacific flights between Hawaii and US mainland cities two-and-a-half hours prior to departures and three hours prior to departure for international flights. Inter-island check-in closes 30 minutes before departure, and all other flight check-in options close 45 minutes before departure. Online check-in is available 24 hours before departure and closes 90 minute beforehand.

During hot calm seasons, a crust may form on the surface of ocean beaches as the heat of the sun evaporates the water leaving the salt which crystallises around the sand particles. This crust forms an additional protective layer that resists wind erosion unless disturbed by animals, or dissolved by the advancing tide. Cusps and horns form where incoming waves divide, depositing sand as horns and scouring out sand to form cusps. This forms the uneven face on some sand shorelines. White sand beaches look white because the quartz or eroded limestone in the sand reflects or scatters sunlight without absorbing other colors.


Coastlines facing very energetic wind and wave systems will tend to hold only large rocks as smaller particles will be held in suspension in the turbid water column and carried to calmer areas by longshore currents and tides. Coastlines that are protected from waves and winds will tend to allow finer sediments such as clay and mud to precipitate creating mud flats and mangrove forests. The shape of a beach depends on whether the waves are constructive or destructive, and whether the material is sand or shingle. Waves are constructive if the period between their wave crests is long enough for the breaking water to recede and the sediment to settle before the succeeding wave arrives and breaks.


As in many mature industries, consolidation is a trend. Airline groupings may consist of limited bilateral partnerships, long-term, multi-faceted alliances between carriers, equity arrangements, mergers, or takeovers. Since governments often restrict ownership and merger between companies in different countries, most consolidation takes place within a country. In the U.S., over 200 airlines have merged, been taken over, or gone out of business since deregulation in 1978. Many international airline managers are lobbying their governments to permit greater consolidation to achieve higher economy and efficiency.
Previously listed on the American Stock Exchange, the company moved to NASDAQ on June 2, 2008.[54] Hawaiian Holdings, Inc. is a holding company whose primary asset is the sole ownership of all issued and outstanding shares of common stock of Hawaiian Airlines, Inc. On June 30, 2008, the company announced that it had been added to the Russell 3000 Index.[55]
The pattern of ownership has been privatized in the recent years, that is, the ownership has gradually changed from governments to private and individual sectors or organizations. This occurs as regulators permit greater freedom and non-government ownership, in steps that are usually decades apart. This pattern is not seen for all airlines in all regions.[87]
Each transaction may only purchase a total of 9 tickets (not including infant tickets) and must contain at least 1 adult (over 16 years old), each adult may only bring 1 infant (Infant does not occupy a seat, and must be under the age of 2 while traveling.) and 1 child, or at most 3 children. Please contact our reservation & ticketing staff if you wish to book a child or infant ticket only.
Each operator of a scheduled or charter flight uses an airline call sign when communicating with airports or air traffic control centres. Most of these call-signs are derived from the airline's trade name, but for reasons of history, marketing, or the need to reduce ambiguity in spoken English (so that pilots do not mistakenly make navigational decisions based on instructions issued to a different aircraft), some airlines and air forces use call-signs less obviously connected with their trading name. For example, British Airways uses a Speedbird call-sign, named after the logo of its predecessor, BOAC, while SkyEurope used Relax. 

In January 2013, Hawaiian signed a Memorandum of Understanding with Airbus for an order of 16 A321neo aircraft plus up to 9 options. The aircraft is operated in a 2-class, 189 seat configuration.[80] Following the completion of labor agreements relating to the operation of the aircraft with the airline's pilot and flight attendant unions, the airline finalized the order in March 2013.[81] In December 2016, Hawaiian announced their intention of leasing two additional A321neo aircraft, bringing their total fleet of the type to 18. The first flight took place on January 17 from Kahului to Oakland.[63]
On March 31, 2011, Hawaiian announced that they will be renovating the check-in lobby of the inter-island terminal at the Honolulu International Airport (Hawaiian's main hub). Hawaiian, the only occupant of the inter-island terminal, will be removing the traditional check-in counter, to install six circular check-in islands in the middle of the lobbies. Those check-in islands can be used for inter-island, mainland, and international flights.[38]

In February 2018, Hawaiian was rumored to be canceling its order for six A330-800s and replacing them with 787-9s.[82] It was reported that Boeing priced the aircraft at less than $115 million, and possibly less than $100 million, each; the production cost of a 787-9 is between $80 million and $90 million. Boeing Capital also released Hawaiian from three 767-300ER leases in advance; these aircraft were to be transferred to United Airlines. Initially, Hawaiian refuted it cancelled its A330-800 order, but did not dismiss a new deal with Boeing.[83] However, on March 6, 2018, Hawaiian Airlines confirmed the cancellation of the A330-800 order and the signing of a Letter of Intent with Boeing to purchase ten 787-9 aircraft, with options for an additional ten planes;[84] the deal was finalized at the Farnborough Air Show in July 2018.[85]
Previously listed on the American Stock Exchange, the company moved to NASDAQ on June 2, 2008.[54] Hawaiian Holdings, Inc. is a holding company whose primary asset is the sole ownership of all issued and outstanding shares of common stock of Hawaiian Airlines, Inc. On June 30, 2008, the company announced that it had been added to the Russell 3000 Index.[55]
Service during the early 1920s was sporadic: most airlines at the time were focused on carrying bags of mail. In 1925, however, the Ford Motor Company bought out the Stout Aircraft Company and began construction of the all-metal Ford Trimotor, which became the first successful American airliner. With a 12-passenger capacity, the Trimotor made passenger service potentially profitable.[29] Air service was seen as a supplement to rail service in the American transportation network.
Constructive waves move material up the beach while destructive waves move the material down the beach. During seasons when destructive waves are prevalent, the shallows will carry an increased load of sediment and organic matter in suspension. On sandy beaches, the turbulent backwash of destructive waves removes material forming a gently sloping beach. On pebble and shingle beaches the swash is dissipated more quickly because the large particle size allows greater percolation, thereby reducing the power of the backwash, and the beach remains steep. Compacted fine sediments will form a smooth beach surface that resists wind and water erosion.
The world's largest airlines can be defined in several ways. American Airlines Group is the largest by its fleet size, revenue, profit, passengers carried and revenue passenger mile. Delta Air Lines is the largest by assets value and market capitalization. Lufthansa Group is the largest by number of employees, FedEx Express by freight tonne-kilometers, Ryanair by number of international passengers carried and Turkish Airlines by number of countries served.
Although Germany lacked colonies, it also began expanding its services globally. In 1931, the airship Graf Zeppelin began offering regular scheduled passenger service between Germany and South America, usually every two weeks, which continued until 1937.[17] In 1936, the airship Hindenburg entered passenger service and successfully crossed the Atlantic 36 times before crashing at Lakehurst, New Jersey, on May 6, 1937.[18] In 1938, a weekly air service from Berlin to Kabul, Afghanistan, started operating.[19]

The pattern of ownership has been privatized in the recent years, that is, the ownership has gradually changed from governments to private and individual sectors or organizations. This occurs as regulators permit greater freedom and non-government ownership, in steps that are usually decades apart. This pattern is not seen for all airlines in all regions.[87]


A concrete ramp should follow the natural profile of the beach to prevent it from changing the normal flow of waves, longshore currents, water and wind. A ramp that is below the beach profile will tend to become buried and cease to provide a good surface for vehicular traffic. A ramp or stair that protrudes above the beach profile will tend to disrupt longshore currents creating deposits in front of the ramp, and scouring behind. Concrete ramps are the most expensive vehicular beach accesses to construct requiring use of a quick drying concrete or a coffer dam to protect them from tidal water during the concrete curing process. Concrete is favored where traffic flows are heavy and access is required by vehicles that are not adapted to soft sand (e.g. road registered passenger vehicles and boat trailers). Concrete stairs are commonly favored on beaches adjacent to population centers where beach users may arrive on the beach in street shoes, or where the foreshore roadway is substantially higher than the beach head and a ramp would be too steep for safe use by pedestrians. A composite stair ramp may incorporate a central or side stair with one or more ramps allowing pedestrians to lead buggies or small boat dollies onto the beach without the aid of a powered vehicle or winch. Concrete ramps and steps should be maintained to prevent buildup of moss or algae that may make their wet surfaces slippery and dangerous to pedestrians and vehicles.
On November 27, 2007, Hawaiian Airlines signed a MOU (Memorandum of Understanding) with Airbus for 24 long-range jets priced at $4.4 billion. The order included six Airbus A330-200s with a further six purchase rights and six Airbus A350-800s with a further six purchase rights - plans to fly to Paris and London were discussed. Deliveries for the A330s began in 2010 while the first A350 was to be delivered in 2017.[72]
The first German airline to use heavier than air aircraft was Deutsche Luft-Reederei established in 1917 which started operating in February 1919. In its first year, the D.L.R. operated regularly scheduled flights on routes with a combined length of nearly 1000 miles. By 1921 the D.L.R. network was more than 3000 km (1865 miles) long, and included destinations in the Netherlands, Scandinavia and the Baltic Republics. Another important German airline was Junkers Luftverkehr, which began operations in 1921. It was a division of the aircraft manufacturer Junkers, which became a separate company in 1924. It operated joint-venture airlines in Austria, Denmark, Estonia, Finland, Hungary, Latvia, Norway, Poland, Sweden and Switzerland.

If you know anything about the history of airline baggage fees, you'll remember the year 2008. That's when American Airlines rocked the air travel industry by charging for a first checked-bag. Sure, the U.S. Travel Association may demand a free bag for every passenger, but it'll never happen - airlines in the U.S. alone took in more than $3 billion in bag fees last year. They'd be crazy to give ... Continue reading
A corduroy or beach ladder (or board and chain) is an array of planks (usually hardwood or treated timber) laid close together and perpendicular to the direction of traffic flow, and secured at each end by a chain or cable to form a pathway or ramp over the sand dune. Corduroys are cheap and easy to construct and quick to deploy or relocate. They are commonly used for pedestrian access paths and light duty vehicular access ways. They naturally conform to the shape of the underlying beach or dune profile, and adjust well to moderate erosion, especially longshore drift. However, they can cease to be an effective access surface if they become buried or undermined by erosion by surface runoff coming from the beach head. If the corduroy is not wide enough for vehicles using it, the sediment on either side may be displaced creating a spoon drain that accelerates surface run off and can quickly lead to serious erosion. Significant erosion of the sediment beside and under the corduroy can render it completely ineffective and make it dangerous to pedestrian users who may fall between the planks.

The line between beach and dune is difficult to define in the field. Over any significant period of time, sediment is always being exchanged between them. The drift line (the high point of material deposited by waves) is one potential demarcation. This would be the point at which significant wind movement of sand could occur, since the normal waves do not wet the sand beyond this area. However, the drift line is likely to move inland under assault by storm waves.[2]
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