Withdrawal from service
NS withdrew an average of 17.3% of its trains for maintenance, repairs and refurbishment on any given day in 2022 (2021: 20.0%). NS is increasingly having to withdraw trains as a result of defects and the associated logistics issues. The DDZ trains are a case in point: they are also being modified following a complete standstill period, and fitted with an enhanced braking system and bogie monitoring system. The supply of new parts has been delayed. Even so, we are working on further lowering the withdrawal percentage in order to increase the number of seats for passengers. For example, to that end we are putting the last inactive DDZ trains back into service, applying a smarter maintenance approach and a system for the flexible deployment of mechanics who go to the trains for maintenance or repairs.