Today’s society is constantly looking for solutions to reduce the continuous increase in emissions into the air and the train has always been seen as the most environmentally friendly means of transport for handling large quantities of people and goods on long journeys.?? In this work a description will be made of the current situation in Italy regarding the railway lines, especially those related to freight transport, and showing how locomotives with diesel propulsion still exist and continue to be produced, having regard to the non-electrification of almost 20% of the lines currently in use.?? The analysis will focus on a locomotive in particular, the German Vossloh G2000 now always directed towards a lower use due to seniority but that has been the symbol of diesel transport on rail thanks to its power and regularity.