3. Dual-mode or hybrid powertrain design

3.1 Rail segments

In this section, we'll identify rail segments according to their main characteristics: the power required to carry out the mission, speed, tonnage hauled, type of service, etc. We can distinguish at least seven major families of segments. We can distinguish at least seven major families, which we'll call "segments" (figure 13 ):

• high-speed trains ;

• intercity" or mainline trains;

• regional trains, TER ;

• freight trains ;

• commuter trains, RER ;