Truck Ordered Not Used (TONU). When the shipper ordered the cargo but the order is cancelled for some reason after the truck is shipped to his destination, for this, monetary compensation is usually charged. An example from life.
Layover. When the driver is delayed overnight or 24 hours while waiting for loading/unloading. And in this case, compensation for the downtime is paid. An example from life.
Detention, additional charge, fine for the downtime during loading/unloading. An example from life.