New signal system for the railway – efficiency in the implementation of ERTMS (RiR 2018:21)

The costs of developing a new signal system for the Swedish railway have almost tripled, and there is a risk of further increases down the line. At the same time, the audit by the Swedish National Audit Office reveals that delays and deficiencies in the planning have entailed extra efforts in the current, outdated signal plant in order to avoid problems for rail traffic prior to the transition.