Page "Commercial vehicle operation" Paragraph 1
from
Wikipedia
A typical system would be purchased by the managers of a trucking company.
It would have a satellite navigation system, a small computer and a digital radio in each truck.
Every fifteen minutes the computer transmits where the truck has been.
The digital radio service forwards the data to the central office of the trucking company.
A computer system in the central office manages the fleet in real time under control of a team of dispatchers.
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