Spoke–hub distribution paradigm

The spoke–hub distribution paradigm (also known as the hub-and-spoke system) is a form of transport topology optimization in which traffic planners organize routes as a series of spokes that connect outlying points to a central "hub". Simple forms of this distribution/connection model contrast with point-to-point transit systems, in which each point has a direct route to every other point, and which modeled the principal method of transporting passengers and freight until the 1970s.

Source: Wikipedia — Spoke–hub distribution paradigm (CC BY-SA 4.0)