👉 Unarrival is a concept in transportation economics, particularly with regard to the arrival of goods at a distribution point. It refers to the time when an item is expected to be delivered but it has not yet arrived on the receiving end. In other words, if you are waiting for a delivery from a store, and the delivery hasn't arrived yet, then that's an unarrival. Unarrivals can occur in different ways depending on the type of goods being distributed. For example, if a package
