In transportation, cargo refers to goods transported by land transport, water transport or air transport, while freight refers to its conveyance. In economics, freight refers to goods transported at a freight rate for Commerce gain. The term cargo is also used in case of goods in the cold chain, because the perishable inventory is always in transit towards a final end-use, even when it is held in refrigeration or other similar climate-controlled facilities, including warehouses.
Multi-modal container units, designed as reusable carriers to facilitate unit load handling of the goods contained, are also referred to as cargo, especially by shipping lines and logistics operators. When empty containers are shipped each unit is documented as a cargo and when goods are stored within, the contents are termed containerized cargo. Similarly, aircraft ULD boxes are also documented as cargo, with an associated packing list of the items contained within.
Break bulk / general cargo are goods that are handled and stowed piecemeal to some degree, as opposed to cargo in bulk or modern shipping containers. Typically bundled in batches for hoisting, either with , slings, , or stacked on trays, or skids; at best (and today mostly) lifted directly into and out of a vessel's holds, but otherwise onto and off its deck, by cranes or present on the dock or on the ship itself. If hoisted on deck instead of straight into the hold, liftable or rolling unit loads, like bags, barrels/vats, boxes, cartons and crates, then have to be man-handled and stowed competently by . Securing break bulk and general freight inside a vessel, includes the use of dunnage. When no hoisting equipment is available, break bulk would previously be man-carried on and off the ship, over a plank, or by passing via Bucket brigade. Since the 1960s, the volume of break bulk cargo has enormously declined worldwide in favour of containerization of containers. Bulk cargo, such as salt, oil, tallow, but also Scrap, is usually defined as commodities that are neither on pallets nor in containers. Bulk cargoes are not handled as individual pieces, the way heavy-lift and project cargo are. Alumina, grain, gypsum, logs, and wood chips, for instance, are bulk cargoes. Bulk cargo is classified as liquid or dry goods.
There are many commercial aircraft suitable for carrying cargo such as the Boeing 747 and the more prominent An‑124, which was purposely built for easy conversion into a cargo aircraft. Such large aircraft employ standardized quick-loading containers known as unit load devices (ULDs), comparable to ISO containers on cargo ships. ULDs can be stowed in the lower decks (front and rear) of several wide-body aircraft,In an all-freight configuration also on their main deck, but this is less common. and on the main deck of some narrow-bodies. Some dedicated cargo planes have a large opening front for loading.
Air freight shipments are very similar to LTL shipments in terms of size and packaging requirements. However, air freight or air cargo shipments typically need to move at much faster speeds than per hour. While shipments move faster than standard LTL, air shipments do not always actually move by air. Air shipments may be booked directly with the carriers, through brokers or with online marketplace services. In the US, there are certain restrictions on cargo moving via air freight on passenger aircraft, most notably the transport of rechargeable lithium-ion battery shipments.
Shippers in the US must be approved and be "known" in the Known Shipper Management System before their shipments can be tendered on passenger aircraft.
The main disadvantage of rail freight is its lack of flexibility. For this reason, rail has lost much of the freight business to road transport. Rail freight is often subject to transshipment costs, since it must be transferred from one mode of transportation to another. Practices such as containerization aim at minimizing these costs. When transporting point-to-point bulk loads such as cement or grain, with specialised bulk handling facilities at the rail sidings, the rail mode of transport remains the most convenient and preferred option.
Many governments are encouraging shippers to increase their use of rail rather than transport because of trains' lower environmental disbenefits.
A good example of road cargo is food, as require deliveries daily to replenish their shelves with goods. Retailers and manufacturers of all kinds rely upon , be they full size semi trucks or smaller . These smaller road haulage companies constantly strive for the best routes and prices to ship out their products. Indeed, the level of commercial freight transported by smaller businesses is often a good barometer of healthy economic development as these types of vehicles move and transport anything literally, including couriers transporting parcels and mail. You can see the different types and weights of vehicles that are used to move cargo around .
LTL shipments range from , being less than the majority of times. The average single piece of LTL freight is and the size of a standard pallet. Long freight and/or large freight are subject to extreme length and cubic capacity surcharges.
Trailers used in LTL can range from . The standard for city deliveries is usually . In tight and residential environments the trailer is used the most.
The shipments are usually palletized, stretch shrink-wrapped and packaged for a mixed-freight environment. Unlike express or parcel, LTL shippers must provide their own packaging, as carriers do not provide any packaging supplies or assistance. However, circumstances may require crating or another substantial packaging.
By the Federal Bridge Gross Weight Formula the total weight of a loaded truck (tractor and trailer, 5-axle rig) cannot exceed in the United States. In ordinary circumstances, long-haul equipment will Tare weight about , leaving about of freight capacity. Similarly a load is limited to the space available in the trailer, normally or long, wide, high and high overall.
While express, parcel and LTL shipments are always intermingled with other shipments on a single piece of equipment and are typically reloaded across multiple pieces of equipment during their transport, TL shipments usually travel as the only shipment on a trailer. In fact, TL shipments usually deliver on exactly the same trailer as they are picked up on.
Truckload (TL) carriers usually charge a rate per kilometre or mile. The rate varies depending on the distance, geographic location of the delivery, items being shipped, equipment type required, and service times required. TL shipments usually receive a variety of surcharges very similar to those described for LTL shipments above. There are thousands more small carriers in the TL market than in the LTL market. Therefore, the use of transportation intermediaries or brokers is widespread.
Another cost-saving method is facilitating pickups or deliveries at the carrier's terminals. Carriers or intermediaries can provide shippers with the address and phone number for the closest shipping terminal to the origin and/or destination. By doing this, shippers avoid any accessorial fees that might normally be charged for liftgate, residential pickup/delivery, inside pickup/delivery, or notifications/appointments.
Shipping experts optimize their service and costs by sampling rates from several carriers, brokers and online marketplaces. When obtaining rates from different providers, shippers may find a wide range in the pricing offered. If a shipper in the United States uses a broker, freight forwarder or another transportation intermediary, it is common for the shipper to receive a copy of the carrier's Federal Operating Authority. Federal Motor Carrier Safety Administration Freight brokers and intermediaries are also required by Federal Law to be licensed by the Federal Highway Administration. Experienced shippers avoid unlicensed brokers and forwarders because if brokers are working outside the law by not having a Federal Operating License, the shipper has no protection in case of a problem. Also, shippers typically ask for a copy of the broker's insurance certificate and any specific insurance that applies to the shipment.
Overall, shipping costs have fallen over the past decades. A further drop in shipping costs in the future might be realized through the application of improved 3D printing technologies.
The United States has been one of the leaders in securing cargo. They see cargo as a concern to national security. After the terrorist attacks of September 11th, the security of this magnitude of cargo has become highlighted on the over 6 million cargo containers that enter the United States ports each year. The latest US Government response to this threat is the . CSI is a program intended to help increase security for containerized cargo shipped to the United States from around the world. Europe is also focusing on this issue, with several EU-funded projects underway.
Practical advice on stabilization is given in the International Guidelines on Safe Load Securing for Road Transport.
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