A reporting mark is a code used to identify owners or lessees of rolling stock and other equipment used on certain rail transport networks. The code typically reflects the name or identifying number of the owner, lessee, or operator of the equipment, similar to IATA airline designators .
73-482: The West Isle Line ( reporting mark WFS ) is a private railroad and is a wholly owned subsidiary of Nutrien (formerly Western Farm Service). The line is operated by a contractor and the line does not have any employees. The line began service on January 7, 1998, after having been acquired from the Burlington Northern & Santa Fe Railway . The line runs for 5.25 miles from Alpaugh, California , to
146-695: A 2-digit code indicating the vehicle's register country . The registered keeper of a vehicle is now indicated by a separate Vehicle Keeper Marking (VKM), usually the name of the owning company or an abbreviation thereof, which must be registered with the Intergovernmental Organisation for International Carriage by Rail (OTIF) and the European Union Agency for Railways (ERA) and which is unique throughout Europe and parts of Asia and Northern Africa. The VKM must be between two and five letters in length and can use any of
219-477: A 40-ft unit than for a 1 TEU box. Although 20-ft units mostly have heavy cargo, and are useful for stabilizing both ships and revenue, carriers financially penalize 1 TEU boxes by comparison. For container manufacturers, 40-foot High-Cubes now dominate market demand both for dry and refrigerated units. Manufacturing prices for regular dry freight containers are typically in the range of $ 1750–$ 2000 U.S. per CEU (container equivalent unit), and about 90% of
292-560: A clause in the International Longshoremen's Association (ILA) contract stipulated that the work of "stuffing" (filling) or "stripping" (emptying) a container within 50 miles (80 km) of a port must be done by ILA workers, or if not done by ILA, that the shipper needed to pay royalties and penalties to the ILA. Unions for truckers and consolidators argued that the ILA rules were not valid work preservation clauses, because
365-769: A connection with the BNSF Railway at Stoil (milepost 936 on BNSF's Bakersfield Subdivision ). Western Farm Service is the only customer on the line. Western Farm Service bought the line from the BNSF in order to avoid having the BNSF's "Alpaugh Branch" abandoned. The line was formerly part of the Atchison, Topeka and Santa Fe Railway and was constructed by the ATSF in 1914. The railroad, as of 2001, averages 400 carloads per year, primarily chemicals used for fertilizer . The West Isle Line has one EMD GP9 (serial number 21332) that
438-597: A crane. However they frequently do not have the upper corner fittings of ISO containers, and are not stackable, nor can they be lifted and handled by the usual equipment like reach-stackers or straddle-carriers. They are generally more expensive to procure. Basic terminology of globally standardized intermodal shipping containers is set out in standard: From its inception, ISO standards on international shipping containers, consistently speak of them sofar as 'Series 1' containers – deliberately so conceived, to leave room for another such series of interrelated container standards in
511-464: A hyphen. Some examples: When a vehicle is sold it will not normally be transferred to another register. The Czech railways bought large numbers of coaches from ÖBB. The number remained the same but the VKM changed from A-ÖBB to A-ČD. The UIC introduced a uniform numbering system for their members based on a 12-digit number, largely known as UIC number . The third and fourth digit of the number indicated
584-438: A means to bundle cargo and goods into larger, unitized loads that can be easily handled, moved, and stacked, and that will pack tightly in a ship or yard. Intermodal containers share a number of construction features to withstand the stresses of intermodal shipping, to facilitate their handling, and to allow stacking. Each has a unique ISO 6346 reporting mark. In 2012, there were about 20.5 million intermodal containers in
657-403: A new 35 ft (10.67 m) x 8 ft (2.44 m) x 8 ft 6 in (2.59 m) Sea-Land container was developed, the length determined by the maximum length of trailers then allowed on Pennsylvanian highways. Each container had a frame with eight corner castings that could withstand stacking loads. Tantlinger also designed automatic spreaders for handling the containers, as well as
730-700: A predecessor of the CNW, from which the UP inherited it. Similarly, during the breakup of Conrail , the long-retired marks of the Pennsylvania Railroad (PRR) and New York Central Railroad (NYC) were temporarily brought back and applied to much of Conrail's fleet to signify which cars and locomotives were to go to CSX (all cars labeled NYC) and which to Norfolk Southern (all cars labeled PRR). Some of these cars still retain their temporary NYC marks. Because of its size, this list has been split into subpages based on
803-584: A subsidiary of the AAR, maintains the active reporting marks for the North American rail industry. Under current practice, the first letter must match the initial letter of the railroad name. As it also acts as a Standard Carrier Alpha Code , the reporting mark cannot conflict with codes in use by other nonrail carriers. Marks ending with the letter "X" are assigned to companies or individuals who own railcars, but are not operating railroads; for example,
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#1732787955815876-462: A typical internal width of 2.44 m ( 96 + 1 ⁄ 8 in), (a gain of ~ 10 centimetres ( 3 + 15 ⁄ 16 in) over the ISO-usual 2.34 m ( 92 + 1 ⁄ 8 in), gives pallet-wide containers a usable internal floor width of 2.40 m ( 94 + 1 ⁄ 2 in), compared to 2.00 m ( 78 + 3 ⁄ 4 in) in standard containers, because
949-777: Is a technically incorrect carry-over usage of the name of an important predecessor of the ISO containers: the much smaller steel CONEX boxes used by the U.S. Army . Intermodal containers exist in many types and standardized sizes, but 90 percent of the global container fleet are "dry freight" or "general purpose" containers: durable closed rectangular boxes, made of rust-retardant Corten steel ; almost all 8 feet (2.44 m) wide, and of either 20 or 40 feet (6.10 or 12.19 m) standard length, as defined by International Organization for Standardization (ISO) standard 668:2020 . The worldwide standard heights are 8 feet 6 inches (2.59 m) and 9 feet 6 inches (2.90 m) –
1022-488: Is used to uniquely identify every such rail car or locomotive, thus allowing it to be tracked by the railroad it is traveling over, which shares the information with other railroads and customers. In multinational registries, a code indicating the home country may also be included. The Association of American Railroads (AAR) assigns marks to all carriers, under authority granted by the U.S. Surface Transportation Board , Transport Canada , and Mexican Government. Railinc ,
1095-550: The 13.6 m (44 ft 7 + 3 ⁄ 8 in) swap bodies that are common for truck transport in Europe. The EU has started a standardization for pallet wide containerization in the European Intermodal Loading Unit (EILU) initiative. Many sea shipping providers in Europe allow these on board, as their external width overhangs over standard containers are sufficiently minor that they fit in
1168-538: The Ideal X , started container shipping on the US East Coast, Matson Navigation followed suit between California and Hawaii. Just like Pan-Atlantic 's containers, Matson's were 8 ft (2.44 m) wide and 8 ft 6 in (2.59 m) high, but due to California's different traffic code Matson chose to make theirs 24 ft (7.32 m) long. In 1968, McLean began container service to South Vietnam for
1241-593: The Derby Canal , which Outram had also promoted. By the 1830s, railways were carrying containers that could be transferred to other modes of transport. The Liverpool and Manchester Railway in the UK was one of these, making use of "simple rectangular timber boxes" to convey coal from Lancashire collieries to Liverpool, where a crane transferred them to horse-drawn carriages. Originally used for moving coal on and off barges, "loose boxes" were used to containerize coal from
1314-590: The ISO 6346 standard classifies a broad spectrum of container types in great detail. Aside from different size options, the most important container types are: Containers for offshore use have a few different features, like pad eyes , and must meet additional strength and design requirements, standards and certification, such as the DNV2.7-1 by Det Norske Veritas , LRCCS by Lloyd's Register , Guide for Certification of Offshore Containers by American Bureau of Shipping and
1387-559: The International standard ISO10855 : Offshore containers and associated lifting sets , in support of IMO MSC/Circ. 860 A multitude of equipment, such as generators, has been installed in containers of different types to simplify logistics – see § Containerized equipment for more details. Swap body units usually have the same bottom corner fixtures as intermodal containers, and often have folding legs under their frame so that they can be moved between trucks without using
1460-662: The Marie Maersk no longer use separate stacks in their holds, and other stacks above deck – instead they maximize their capacity by stacking continuously from the bottom of the hull, to as much as 21 high. This requires automated planning to keep heavy containers at the bottom of the stack and light ones on top to stabilize the ship and to prevent crushing the bottom containers. Regional intermodal containers, such as European, Japanese and U.S. domestic units however, are mainly transported by road and rail, and can frequently only be stacked up to two or three laden units high. Although
1533-965: The Swiss Museum of Transport and the Bureau International des Containers (BIC) held demonstrations of container systems for representatives from a number of European countries, and from the United States. A system was selected for Western Europe, based on the Netherlands' system for consumer goods and waste transportation called Laadkisten (lit. "Loading chests"), in use since 1934. This system used roller containers for transport by rail, truck and ship, in various configurations up to 5,500 kg (12,100 lb) capacity, and up to 3.1 by 2.3 by 2 metres (10 ft 2 in × 7 ft 6 + 1 ⁄ 2 in × 6 ft 6 + 3 ⁄ 4 in) in size. This became
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#17327879558151606-669: The TTX Company (formerly Trailer Train Company) is named for its original reporting mark of TTX. In another example, the reporting mark for state-funded Amtrak services in California is CDTX (whereas the usual Amtrak mark is AMTK) because the state transportation agency ( Caltrans ) owns the equipment used in these services. This may also apply to commuter rail, for example Metrolink in Southern California uses
1679-467: The U.S. Army Transportation Corps developed the "Transporter", a rigid, corrugated steel container, able to carry 9,000 pounds (4,100 kg). It was 8 ft 6 in (2.59 m) long, 6 ft 3 in (1.91 m) wide, and 6 ft 10 in (2.08 m) high, with double doors on one end, was mounted on skids, and had lifting rings on the top four corners. After proving successful in Korea,
1752-597: The twistlock mechanism that connects with the corner castings. Containers in their modern 21st-century form first began to gain widespread use around 1956. Businesses began to devise a structured process to utilize and to get optimal benefits from the role and use of shipping containers. Over time, the invention of the modern telecommunications of the late 20th century made it highly beneficial to have standardized shipping containers and made these shipping processes more standardized, modular, easier to schedule, and easier to manage. Two years after McLean's first container ship,
1825-513: The 26 letters of the Latin alphabet . Diacritical marks may also be used, but they are ignored in data processing (for example, Ö is treated as though it is O ). The VKM is preceded by the code for the country (according to the alphabetical coding system described in Appendix 4 to the 1949 convention and Article 45(4) of the 1968 convention on road traffic), where the vehicle is registered and
1898-401: The 9 ft 6 in (2.9 m) tall high-cube, as well as 4-foot-3-inch half-height (1.3 m) 20-foot (6.1 m) containers are equally counted as one TEU. Similarly, extra long 45 ft (13.72 m) containers are commonly counted as just two TEU, no different from standard 40 feet (12.19 m) long units. Two TEU are equivalent to one forty-foot equivalent unit (FEU). In 2014
1971-703: The Box: How Globalization Changed from Moving Stuff to Spreading Ideas and The Box: How the Shipping Container Made the World Smaller and the World Economy Bigger , said in an interview: Because of delays in the process, it's taking a container longer to go from its origin to its final destination where it's unloaded, so the container is in use longer for each trip. You've just lost a big hunk of
2044-654: The Transporter was developed into the Container Express (CONEX) box system in late 1952. Based on the Transporter, the size and capacity of the Conex were about the same, but the system was made modular, by the addition of a smaller, half-size unit of 6 ft 3 in (1.91 m) long, 4 ft 3 in (1.30 m) wide and 6 ft 10 + 1 ⁄ 2 in (2.10 m) high. CONEXes could be stacked three high, and protected their contents from
2117-738: The U.S. nor Europe. In November 1932, the first container terminal in the world was opened by the Pennsylvania Rail Road Company in Enola, Pennsylvania . Containerization was developed in Europe and the US as a way to revitalize rail companies after the Wall Street Crash of 1929 , in New York, which resulted in economic collapse and a drop in all modes of transport. In April 1951 at Zürich Tiefenbrunnen railway station ,
2190-651: The US military with great success. ISO standards for containers were published between 1968 and 1970 by the International Maritime Organization. These standards allow for more consistent loading, transporting, and unloading of goods in ports throughout the world, thus saving time and resources. The International Convention for Safe Containers (CSC) is a 1972 regulation by the Inter-governmental Maritime Consultative Organization on
2263-682: The VKM BLS. Example for an "Einheitswagen" delivered in 1957: In the United Kingdom, prior to nationalisation, wagons owned by the major railways were marked with codes of two to four letters, these codes normally being the initials of the railway concerned; for example, wagons of the Great Western Railway were marked "G W"; those of the London, Midland and Scottish Railway were marked "L M S", etc. The codes were agreed between
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2336-541: The acquiring company discontinues the name or mark of the acquired company, the discontinued mark is referred to as a "fallen flag" railway. Occasionally, long-disused marks are suddenly revived by the companies which now own them. For example, in recent years, the Union Pacific Railroad has begun to use the mark CMO on newly built covered hoppers, gondolas and five-bay coal hoppers. CMO originally belonged to Chicago, St. Paul, Minneapolis and Omaha Railway ,
2409-401: The container, to avoid axle weight violations. The maximum gross weights that U.S. railroads accept or deliver are 52,900 lb (24,000 kg) for 20-foot containers, and 67,200 lb (30,500 kg) for 40-foot containers, in contrast to the global ISO-standard gross weight for 20-footers having been raised to the same as 40-footers in the year 2005. In the U.S., containers loaded up to
2482-452: The corrugated sides cause aerodynamic drag, and up to 10% fuel economy loss in road or rail transport, compared to smooth-sided vans. Standard containers are 8 feet (2.44 m) wide by 8 ft 6 in (2.59 m) high, although the taller "High Cube" or "hi-cube" units measuring 9 feet 6 inches (2.90 m) have become very common in recent years . By the end of 2013, high-cube 40 ft containers represented almost 50% of
2555-427: The development of containers, as well as their handling and transportation equipment. In 1949, while at Brown Trailers Inc. of Spokane, Washington , he modified the design of their stressed skin aluminum 30-foot trailer, to fulfil an order of two-hundred 30 by 8 by 8.5 feet (9.14 m × 2.44 m × 2.59 m) containers that could be stacked two high, for Alaska-based Ocean Van Lines . Steel castings on
2628-484: The eight corners, to allow gripping the box from above, below, or the side, and they can be stacked up to ten units high. Although ISO standard 1496 of 1990 only required nine-high stacking, and only of containers rated at 24,000 kg (53,000 lb), current Ultra Large Container Vessels of the Post New Panamax and Maersk Triple E class are stacking them ten or eleven high. Moreover, vessels like
2701-453: The elements. By 1965 the US military used some 100,000 Conex boxes, and more than 200,000 in 1967, making this the first worldwide application of intermodal containers. Their invention made a major contribution to the globalization of commerce in the second half of the 20th century, dramatically reducing the cost of transporting goods and hence of long-distance trade. From 1949 onward, engineer Keith Tantlinger repeatedly contributed to
2774-435: The extra width enables their users to either load two Euro-pallets end on end across their width, or three of them side by side (providing the pallets were neatly stacked, without overspill), whereas in standard ISO containers, a strip of internal floor-width of about 33 centimetres (13 in) cannot be used by Euro-pallets. As a result, while being virtually interchangeable: Some pallet-wides are simply manufactured with
2847-448: The first letter of the reporting mark: A railway vehicle must be registered in the relevant state's National Vehicle Register (NVR), as part of which process it will be assigned a 12-digit European Vehicle Number (EVN). The EVN schema is essentially the same as that used by the earlier UIC numbering systems for tractive vehicles and wagons , except that it replaces the 2-digit vehicle owner's code (see § Europe 1964 to 2005 ) with
2920-508: The first post World War II European railway standard of the International Union of Railways – UIC-590 , known as "pa-Behälter". It was implemented in the Netherlands, Belgium, Luxembourg, West Germany, Switzerland, Sweden and Denmark. The use of standardized steel shipping containers began during the late 1940s and early 1950s, when commercial shipping operators and the US military started developing such units. In 1948
2993-427: The future. Basic dimensions and permissible gross weights of intermodal containers are largely determined by two ISO standards: Weights and dimensions of the most common (standardized) types of containers are given below. Forty-eight foot and fifty-three foot containers have not yet been incorporated in the latest, 2020 edition of the ISO 668. ISO standard maximum gross mass for all standard sizes except 10-ft boxes
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3066-494: The global containerized intermodal freight transport system, but smaller numbers are in regional use as well. It is like a boxcar that does not have wheels. Based on size alone, up to 95% of intermodal containers comply with ISO standards, and can officially be called ISO containers . These containers are known by many names: freight container, sea container, ocean container, container van or sea van , sea can or C can , or MILVAN , or SEAVAN . The term CONEX (Box)
3139-462: The global container fleet grew to a volume of 36.6 million TEU, based on Drewry Shipping Consultants' Container Census. Moreover, in 2014 for the first time in history 40-foot High-Cube containers accounted for the majority of boxes in service, measured in TEU. In 2019 it was noted by global logistics data analysis startup Upply that China's role as 'factory of the world' is further incentivizing
3212-640: The late 1780s, at places like the Bridgewater Canal . By the 1840s, iron boxes were in use as well as wooden ones. The early 1900s saw the adoption of closed container boxes designed for movement between road and rail. The first international standard for containers was established by the Bureau International des Containers et du Transport Intermodal (B.I.C.) in 1933, and a second one in 1935, primarily for transport between European countries. American containers at this time were not standardized, and these early containers were not yet stackable – neither in
3285-601: The late 18th century. In 1766 James Brindley designed the box boat 'Starvationer' with ten wooden containers, to transport coal from Worsley Delph (quarry) to Manchester by Bridgewater Canal . In 1795, Benjamin Outram opened the Little Eaton Gangway, upon which coal was carried in wagons built at his Butterley Ironwork. The horse-drawn wheeled wagons on the gangway took the form of containers, which, loaded with coal, could be transshipped from canal barges on
3358-519: The latter are known as High Cube or Hi-Cube ( HC or HQ ) containers. Depending on the source, these containers may be termed TEUs (twenty-foot equivalent units), reflecting the 20- or 40-foot dimensions. Invented in the early 20th century, 40-foot intermodal containers proliferated during the 1960s and 1970s under the containerization innovations of the American shipping company SeaLand . Like cardboard boxes and pallets , these containers are
3431-497: The maximum width of road vehicles in the region but is 6 inches (15 cm) wider than ISO-standard containers, and they are often not built strong enough to endure the rigors of ocean transport. The first North American containers to come to market were 48 feet (15 m) long. This size was introduced by container shipping company American President Lines (APL) in 1986. The size of the containers matched new federal regulations passed in 1983 which prohibited states from outlawing
3504-425: The operation of single trailers shorter than 48 feet long or 102 inches wide. This size being 8 feet (2.44 m) longer and 6 inches (15 cm) wider has 29% more volume capacity than the standard 40-ft High-Cube, yet costs of moving it by truck or rail are almost the same. In the late 1980s, the federal government announced it would once again allow an increase in the length of trailers to 53 feet (16 m) at
3577-572: The owner of a reporting mark is taken over by another company, the old mark becomes the property of the new company. For example, when the Union Pacific Railroad (mark UP) acquired the Chicago and North Western Railway (mark CNW) in 1995, it retained the CNW mark rather than immediately repaint all acquired equipment. Some companies own several marks that are used to identify different classes of cars, such as boxcars or gondolas. If
3650-405: The owner, or more precisely the keeper of the vehicle. Thus each UIC member got a two-digit owner code . With the introduction of national vehicle registers this code became a country code. Some vehicles had to be renumbered as a consequence. The Swiss company BLS Lötschbergbahn had the owner code 63. When their vehicles were registered, they got numbers with the country code 85 for Switzerland and
3723-492: The process can easily cause major delays everywhere up and down the supply chain. The reliance on containers exacerbated some of the economic and societal damage from the 2021 global supply chain crisis of 2020 and 2021, and the resulting shortages related to the COVID-19 pandemic . In January 2021, for example, a shortage of shipping containers at ports caused shipping to be backlogged. Marc Levinson, author of Outside
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#17327879558153796-722: The rail cargo weight limit cannot move over the road, as they will exceed the U.S. 80,000 lb (36,000 kg) highway limit. Australian RACE containers are also slightly wider to optimise them for the use of Australia Standard Pallets , or are 41 ft (12.5 m) long and 2.5 m (8 ft 2 in) wide to be able to fit up to 40 pallets. European pallet wide (or PW) containers are minimally wider, and have shallow side corrugation, to offer just enough internal width, to allow common European Euro-pallets of 1.20 m ( 47 + 1 ⁄ 4 in) long by 0.80 m ( 31 + 1 ⁄ 2 in) wide, to be loaded with significantly greater efficiency and capacity. Having
3869-650: The railways and registered with the Ministry of Railways , Government of India . Intermodal container An intermodal container , often called a shipping container , or cargo container , (or simply “container” ) is a large metal crate designed and built for intermodal freight transport , meaning these containers can be used across different modes of transport – such as from ships to trains to trucks – without unloading and reloading their cargo. Intermodal containers are primarily used to store and transport materials and products efficiently and securely in
3942-762: The railways and registered with the Railway Clearing House . In India, wagons owned by the Indian Railways are marked with codes of two to four letters, these codes normally being the initials of the railway divisions concerned along with the Hindi abbreviation; for example, trains of the Western Railway zone are marked "WR" and "प रे"; those of the Central Railway zone are marked "CR" and "मध्य", etc. The codes are agreed between
4015-820: The reporting mark SCAX because the equipment is owned by the Southern California Regional Rail Authority —which owns the Metrolink system—even though it is operated by Amtrak. This is why the reporting mark for CSX Transportation , which is an operating railroad, is CSXT instead of CSX. Private (non-common carrier) freight car owners in Mexico were issued, up until around 1990, reporting marks ending in two X's, possibly to signify that their cars followed different regulations (such as bans on friction bearing trucks) than their American counterparts and so their viability for interchange service
4088-445: The safe handling and transport of containers. It decrees that every container traveling internationally be fitted with a CSC Safety-approval Plate. This holds essential information about the container, including age, registration number, dimensions and weights, as well as its strength and maximum stacking capability. Longshoremen and related unions around the world struggled with this revolution in shipping goods. For example, by 1971
4161-487: The same, ISO-standard floor structure, but with the side-panels welded in, such that the ribs/corrugations are embossed outwards, instead of indenting to the inside. This makes it possible for some pallet-wides to be just 2.462 m ( 96 + 7 ⁄ 8 in) wide, but others can be 2.50 m ( 98 + 3 ⁄ 8 in) wide. The 45 ft (13.72 m) pallet-wide high-cube container has gained particularly wide acceptance, as these containers can replace
4234-577: The ship lines want to ship them empty back to Asia, rather than letting them go to South Dakota and load over the course of several days. So we've had exporters in the United States complaining that they have a hard time finding a container that they can use to send their own goods abroad. Ninety percent of the global container fleet consists of "dry freight" or "general purpose" containers – both of standard and special sizes. And although lengths of containers vary from 8 to 56 feet (2.4 to 17.1 m), according to two 2012 container census reports about 80% of
4307-451: The standard, general purpose container, many variations exist for use with different cargoes. The most prominent of these are refrigerated containers (also called reefers ) for perishable goods, that make up 6% of the world's shipping boxes. Tanks in a frame, for bulk liquids, account for another 0.75% of the global container fleet. Although these variations are not of the standard type, they mostly are ISO standard containers – in fact
4380-451: The standards. Empty weight ( tare weight ) is not determined by the standards, but by the container's construction, and is therefore indicative, but necessary to calculate a net load figure, by subtracting it from the maximum permitted gross weight. The bottom row in the table gives the legal maximum cargo weights for U.S. highway transport, and those based on use of an industry common tri-axle chassis. Cargo must also be loaded evenly inside
4453-401: The top corners provided lifting and securing points. In 1955, trucking magnate Malcom McLean bought Pan-Atlantic Steamship Company , to form a container shipping enterprise, later known as Sea-Land . The first containers were supplied by Brown Trailers Inc, where McLean met Keith Tantlinger , and hired him as vice-president of engineering and research. Under the supervision of Tantlinger,
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#17327879558154526-418: The total capacity because the containers can't be used as intensively. We've had in the United States an additional problem, which is that the ship lines typically charge much higher rates on services from Asia to North America than from North America to Asia. This has resulted in complaints, for example, from farmers and agricultural companies, that it's hard to get containers in some parts of the country because
4599-404: The two ends are quite rigid, containers flex somewhat during transport. Container capacity is often expressed in twenty-foot equivalent units ( TEU , or sometimes teu ). A twenty-foot equivalent unit is a measure of containerized cargo capacity equal to one standard 20-foot (6.1 m) long container. This is an approximate measure, wherein the height of the box is not considered. For example,
4672-452: The use of 40-foot containers, and that the computational standard 1 TEU boxes only make up 20% of units on major east–west liner routes, and demand for shipping them keeps dropping. In the 21st century, the market has shifted to using 40-foot high-cube dry and refrigerated containers more and more predominantly. Forty-foot units have become the standard to such an extent that the sea freight industry now charges less than 30% more for moving
4745-641: The usual interlock spaces in ship's holds, as long as their corner-castings patterns (both in the floor and the top) still match with regular 40-foot units, for stacking and securing. The North American market has widely adopted containerization, especially for domestic shipments that need to move between road and rail transport. While they appear similar to the ISO-standard containers, there are several significant differences: they are considered High-Cubes based on their 9 ft 6 in (2.90 m) ISO-standard height, their 102-inch (2.6 m) width matches
4818-466: The work of stuffing and stripping containers away from the pier had not traditionally been done by ILA members. In 1980 the Supreme Court of the United States heard this case and ruled against the ILA. Some experts have said that the centralized, continuous shipping process made possible by containers has created dangerous liabilities: one bottleneck, delay, or other breakdown at any point in
4891-592: The world of varying types to suit different cargoes. Containers have largely supplanted the traditional break bulk cargo ; in 2010, containers accounted for 60% of the world's seaborne trade. The predominant alternative methods of transport carry bulk cargo , whether gaseous, liquid, or solid—e.g., by bulk carrier or tank ship , tank car , or truck . For air freight , the lighter weight IATA -defined unit load devices are used. Containerization has its origins in early coal mining regions in England beginning in
4964-486: The world's containers are either 20- or 40-foot standard-length boxes of the dry freight design. These typical containers are rectangular, closed box models, with doors fitted at one end, and made of corrugated weathering steel (commonly known as CorTen) with a plywood floor. Although corrugating the sheet metal used for the sides and roof contributes significantly to the container's rigidity and stacking strength, just like in corrugated iron or in cardboard boxes ,
5037-591: The world's containers are made in China. The average age of the global container fleet was a little over 5 years from end 1994 to end 2009, meaning containers remain in shipping use for well over 10 years. A gooseneck tunnel , an indentation in the floor structure, that meshes with the gooseneck on dedicated container semi-trailers , is a mandatory feature in the bottom structure of 1AAA and 1EEE (40- and 45-ft high-cube) containers, and optional but typical on standard height, forty-foot and longer containers. Other than
5110-423: The world's maritime container fleet, according to Drewry's Container Census report. About 90% of the world's containers are either nominal 20-foot (6.1 m) or 40-foot (12.2 m) long, although the United States and Canada also use longer units of 45 ft (13.7 m), 48 ft (14.6 m) and 53 ft (16.15 m). ISO containers have castings with openings for twistlock fasteners at each of
5183-580: Was impaired. This often resulted in five-letter reporting marks, an option not otherwise allowed by the AAR. Companies owning trailers used in trailer-on-flatcar service are assigned marks ending with the letter "Z", and the National Motor Freight Traffic Association , which maintains the list of Standard Carrier Alpha Codes, assigns marks ending in "U" to owners of intermodal containers . The standard ISO 6346 covers identifiers for intermodal containers. When
5256-486: Was manufactured in February 1956 for Southern Pacific Railroad . It is marked in a green paint scheme with yellow marking as "West Isle Line" engine number "3399". It was formerly known as SP 3399, 3472, and 5639. Reporting mark In North America , the mark, which consists of an alphabetic code of two to four letters, is stenciled on each piece of equipment, along with a one- to six-digit number. This information
5329-421: Was raised to 36,000 kg or 79,000 lb per Amendment 1 on ISO 668:2013, in 2016. Draft Amendment 1 of ISO 668: 2020 – for the eighth edition – maintains this. Given the average container lifespan, the majority of the global container fleet have not caught up with this change yet. Values vary slightly from manufacturer to manufacturer, but must stay within the tolerances dictated by
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