It would be better to impose and to set dates, to incentivise by means of investments or, better still, to withdraw investment from those who fail to adapt to the infrastructure projects or who purchase rolling stock that does not use these systems.
Sarebbe meglio imporre e fissare delle date, incentivare mediante investimenti e anzi toglierli a chi non si adegua ai progetti di infrastrutturazione o acquista rotabili che non usano questi sistemi.