If you mean how slaves were transported to the United States, it was by ship. If you mean how slaves were "transported" to freedom from the south, that was called the "Underground Railroad."
Slaves mostly walked..
slaves did not use any transport they mostly walked
Slaves
The Highway Transportation System
The second leg of the triangle trade was known as the Transportation of Slaves. This involved the forced migration of African slaves to the Americas to work on plantations. This leg of the trade was a crucial and brutal aspect of the triangular trade system.
Good transportation system
The three primary components of the triangular trade system were: The transportation of enslaved Africans from West Africa to the Americas. The transportation of raw materials such as sugar, tobacco, and cotton from the Americas to Europe. The transportation of manufactured goods from Europe to Africa.
A transportation hub is a moving system
This system is the transportation of the blood.
the U.S. Department of Transportation.
The "middle passage" is the transportation of slaves form Africa to the New World. Roughly 20% of the slaves died during the voyage
A large number of Rhode Islanders were involved in the fanancing and transportation of slaves and Rhode Island had more slaves then any other New England Colony. It was a very profitable enterprise.