The second component of transportation is storage….
In-transit inventory is a captive element of the transportation system.
But the same vehicle that is transporting it can also be a storage vessel prior to shipment of at the destination. It is often cheaper to keep all the equipment or parts in the truck rather than unloading and reloading it a couple days later.
We talked about the flexible element of product being transported… it is called diversion when a shipment destination is changed while it is enroute. This is the same term used to change the mission of an aircraft from a training mission to a SAR case.