A bogie (in some senses called a truck in North American English) is a chassis or framework carrying wheelsets, attached to a vehicle, thus serving as a modular subassembly of wheels and axles.
Cab signalling is a railway safety system that communicates track status and condition information to the cab, crew compartment or driver's compartment of a locomotive, railcar or multiple unit.
Electromagnetic or magnetic induction is the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field.
Italy (Italia), officially the Italian Republic (Repubblica Italiana), is a sovereign state in Europe.
RS4 Codici is a train protection system used in Italy.
A train protection system is a railway technical installation to ensure safe operation in the event of human failure.