As with most things, drayage is split into several categories. The Intermodal Association of North America has published six drayage classifications.
Inter-carrier drayage involves the movement of goods or units over a short distance and between different carriers (railroad and trucking stations).
Though intra-carrier drayage sounds similar to the previous category, this type of classification specifically takes freight from a rail hub to an intermodal hub, all controlled by the same carrier.
As the name suggests, expedited drayage is when units are transported quickly and efficiently, as the material goods are time-sensitive.
This is probably the type of good transportation you are most familiar with: delivering retail goods to customers via roadways.
Shuttle drayage is when an intermodal unit travels from its hub of origin and is temporarily taken to a parking lot. Loading and emptying occurs here when the hub becomes overcrowded.
This is when an intermodal unit is taken to a pier or dock from its previous hub.
Nearly 95 percent of the world’s manufactured goods travel in a container before they reach customers’ hands. That being said, intermodal container shipping and the intermodal supply chain have fundamentally changed how the world’s businesses conduct trade even though they are newer transportation innovations.