The system must provide a smooth flow of information from the transmitter to the receiver. Tolerant of Loss . Audio and video streams can tolerate the occasional loss of small amounts of information. If a particular pixel of a streaming video image is corrupted in transport, the result is not more serious than an imperceptible flash on a passing image. ATM achieves these features through the use of short, 53-byte cells.
Long trains are very efficient from the perspective of the railroad company.
A locomotive is needed whether the train has 1 car or 1000. . . . Longer trains reduce the percentage of overhead. On the other hand, if you are waiting at a railroad crossing, long trains can impose excessive delays. Short trains allow users to cross the tracks more frequently. For a given total number of freight cars, the average delay getting across the tracks will be approximately the same, over time, with either short or long trains.