Actual Time of Departure
Logistics Term
Actual Time of Departure Definition
Actual time of Departure (ATD) means the exact time a particular mode of transportation leaves from the point of origin. The emphasis on the actual time of departure is the accuracy of it. It's only identified once the shipment disembarks. It is, therefore, more reliable than the estimated time of departure (ETD), which refers to the time a client expects their shipment to leave the point of origin, which can be the warehouse or storage facility. The difference between the actual and estimated departure times provides information on delivery delays. ATD can also describe the exact time when an airplane takes off.
How Actual Time of Departure Influences Actual Arrival Time
The actual time of departure and the estimated time should ideally align. Still, delays result in a difference between the two. Therefore, the provision of the ATD is essential in shipping as it may result in various changes in transportation. An example might be when a shipment expected to leave the warehouse at 12:30 p.m. ends up delayed. If it leaves at 12:40 p.m., it's expected the actual arrival time will also be delayed an extra ten minutes. An actual time of departure example occurs when the shipment is scheduled to leave the warehouse at 12:30 p.m. but ends up leaving at 12:40 p.m. Actual time of departure directly influences the actual arrival time.
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