Context

The article begins by defining what control/command means in a guided ground transportation system, even though its definition has evolved considerably over time and continues to do so in more futuristic visions.

A historical review of the major stages in its development is then provided, in order to assess its value in supporting operations, and to understand the economic and strategic stakes involved.

The article goes on to define the essential components of control/command and their respective roles in the management of the various related operations.

The technologies and technical solutions implemented are then presented, without seeking to be exhaustive, which is impossible given the complexity...