Nature of the Shipping Industry

Shipping is a private, highly competitive service industry. The activity of the industry is divided into several categories, namely, liner service, tramp shipping, industrial service, and tanker operation, all of which operate on certain well-established routes.

I. Trade Routes

Most of the world's shipping travels a relatively small number of major ocean routes: the North Atlantic, between Europe and eastern North America; the Mediterranean-Asian route via the Suez Canal; the Panama Canal route connecting Europe and the eastern American coasts with the western American coasts and Asia; the South African route linking Europe and America with Africa; the South American route from Europe and North America to South America; the North Pacific route linking western America with Japan and China; and the South Pacific route from western America to Australia, New Zealand, Indonesia, and southern Asia. The old Cape of Good Hope route pioneered by Vasco da Gama and shortened by the Suez Canal has returned to use for giant oil tankers plying between the Persian Gulf and Europe and America. Many shorter routes, including coastal routes, are heavily traveled.

Major Shipping Trade Routes
This map shows shipping routes from the perspective of the north pole, which falls roughly at the map’s center. Called a polar-azimuthal map, it was created by flattening the globe from the top, which provides a better understanding of the way the routes curve around the planet. Although there are hundreds of potential shipping paths across the world’s oceans, almost all ships travel on a few well-established routes. Determined by geography, economics, and historical tradition, the routes serve to connect major industrial regions to one another and to areas that produce raw materials.

II. Coastwise Shipping

Technically, coastal shipping is conducted within 32 km (within 20 mi) of the shoreline, but in practice ship lanes often extend beyond that distance, for reasons of economy and safety of operation. In the U.S., coastal shipping is conducted along the Pacific, Atlantic, and Gulf coasts. Under the restriction known as cabotage, the U.S. and many other nations permit only vessels registered under the national flag to engage in coastal trade. Among many small European countries cabotage does not apply, and short international voyages are common. A special feature of coastal shipping in the U.S. is the trade between the Pacific coast and the Atlantic and Gulf coasts. Vessels engaged in this trade traverse the open sea and utilize the Panama Canal; however, they are covered by cabotage laws. In coastal and short-distance shipping, special-purpose ships are often employed, such as car ferries and train ferries.

III. Inland Waterways

A major part of all the world's shipping moves on inland waterways—rivers, canals, and lakes. Usually such shipping employs smaller, lighter vessels, although in some cases oceangoing ships navigate inland waterways, for example, the St. Lawrence Seaway route to the Great Lakes of North America. Containerization, lighter-aboard-ship, and barge-aboard-ship operations have facilitated the shipping of cargoes between oceangoing vessels and those of the inland waterways.

IV. Liner Services

Liner service consists of regularly scheduled shipping operations on fixed routes. Cargoes are accepted under a bill-of-lading contract issued by the ship operator to the shipper.

Competition in liner service is regulated generally by agreements, known as conferences, among the shipowners. These conferences stabilize conditions of competition and set passenger fares or freight rates for all members of the conferences. In the U.S., steamship conferences are supervised by the Federal Maritime Commission in accordance with the Shipping Act of 1916. Rate changes, modifications of agreements, and other joint activities must be approved by the commission before they are effective. Measures designed to eliminate or prevent competition are prohibited by law.

V. Tramp Shipping

Tramps, known also as general-service ships, maintain neither regular routes nor regular service. Usually tramps carry shipload lots of the same commodity for a single shipper. Such cargoes generally consist of bulk raw or low-value material, such as grain, ore, or coal, for which inexpensive transportation is required. About 30 percent of U.S. foreign commerce is carried in tramps.

Tramps are classified on the basis of employment rather than of ship design. The typical tramp operates under a charter party, that is, a contract for the use of the vessel.

The center of the chartering business is the Baltic Exchange in London, where brokers representing shippers meet with shipowners or their representatives to arrange the agreements. Freight rates fluctuate according to supply and demand: When cargoes are fewer than ships, rates are low. Charter rates are also affected by various other circumstances, such as crop failures and political crises.

Charter parties are of three kinds, namely, the voyage charter, the time charter, and the bareboat charter. The voyage charter, the most common of the three, provides transport for a single voyage, and designated cargo between two ports in consideration of an agreed fee. The charterer provides all loading and discharging berths and port agents to handle the ship, and the shipowner is responsible for providing the crew, operating the ship, and assuming all costs in connection with the voyage, unless an agreement is made to the contrary. The time charter provides for lease of the ship and crew for an agreed period of time. The time charter does not specify the cargo to be carried but places the ship at the disposal of the charterer, who must assume the cost of fuel and port fees. The bareboat charter provides for the lease of the ship to a charterer who has the operating organization for complete management of the ship. The bareboat charter transfers the ship, in all but legal title, to the charterer, who provides the crew and becomes responsible for all aspects of its operation.

The leading tramp-owning and tramp-operating nations of the world are Norway, Britain, the Netherlands, and Greece. The carrying capacity of a typical, modern, well-designed tramp ship is about 12,000 dwt, and its speed is about 15 knots. The recent trend is toward tramps of 30,000 dwt, without much increase in speed.

VI. Industrial Carriers

Industrial carriers are vessels operated by large corporations to provide transportation essential to the processes of manufacture and distribution. These vessels are run to ports and on schedules determined by the specific needs of the owners. The ships may belong to the corporations or may be chartered. For example, the Bethlehem Steel Corp. maintains a fleet of Great Lakes ore carriers, a number of specialized ships that haul ore from South America to Baltimore, Maryland, and a fleet of dry-cargo ships that transports steel products from Baltimore to the Pacific coast. Many oil companies maintain large fleets of deep-sea tankers, towboats, and river barges to carry petroleum to and from refineries.

VII. Tanker Operation

All tankers are private or contract carriers. In the 1970s some 34 percent of the world tanker fleet, which aggregates about 200 million dwt, was owned by oil companies; the remaining tonnage belonged to independent shipowners who chartered their vessels to the oil companies. So-called supertankers, which exceed 100,000 dwt, are employed to transport crude petroleum from the oil fields to refineries. The refined products, such as gasoline, kerosene, and lubricating oils, are distributed by smaller tankers, generally less than 30,000 dwt, and by barges.