• North Atlantic route:

Western Europe (Rotterdam, Hamburg, London, Copenhagen, Saint Petersburg; Nordic Stockholm, Oslo, etc.) — North Atlantic — East Coast of North America (New York, Quebec, etc.), South Coast (Port of New Orleans, and via the Florida Straits).

• Asia-Europe route (Suez Canal route):

East Asia (Yokohama, Shanghai, Hong Kong and other ports, passing through Taiwan, BashiStrait, etc.), Southeast Asia (Singapore, Manila, etc.)—Strait of Malacca—Indian Ocean (South Asia Colombo, Mumbai , Kolkata, Karachi, etc.) — Bab el Mandeb Strait (Aden) — Red Sea — Suez Canal (Alexandria) — Mediterranean Sea (Tunisia, Genoa) — Strait of Gibraltar — England (Dover) Straits—Western European countries.

• Cape of Good Hope route:

West Asia (Abadan, etc., via the Strait of Hormuz), East Asia, Southeast Asia, South Asia — Indian Ocean — East Africa (Dar es Salaam) — Mozambique Strait — Cape of Good Hope (Cape Town) — Atlantic Ocean — West Africa (Dagar) — Western Europe, giant ships with a carrying capacity of more than 250,000 tons cannot pass through the Suez Canal and need to bypass the Cape of Good Hope at the southern tip of Africa.

• North Pacific route:

Eastern and southeastern Asia—Pacific Ocean—the west coast of North America (San Francisco, Los Angeles, Vancouver, Seattle, etc.) is the international trade route between Asia and North American countries. With the development of East Asia’s economy, this The trade volume on these routes continues to increase. These four routes are the busiest routes in the world. The North Atlantic route is the busiest maritime transportation route in the world, and the Cape of Good Hope route is the route with the largest oil transportation volume. It is known as the “maritime lifeline” of Western countries.

• Panama Canal route:

East coast of North America—Panama Canal (Panama City)—ports on the west coast of North America. It is a shortcut to connect the Atlantic and Pacific Oceans and is of great significance to the connection between the east and west coasts of the United States.

• South Pacific route:

The passage between countries in the Asia-Pacific region (Sydney, Wellington) — the Pacific Ocean (Honolulu) — the west coast of South America (Lima, Valparaiso, etc.).