综合控制系统

在瑞典国家铁路管理局发布的2001年报告中，火车司机汇报了关于清晨换班疲倦的严重问题。他们在理解列车自动防护功能方面存在很大困难，该功能可以通过危险信号阻止火车继续前进。在维修和缺乏预计工作信息方面也存在问题。

An integrated control system

According to a 2001 report managed by the Swedish National Rail Administration, train drivers reported ,severe problems concerning sleeping on early morning shifts. They had difficulty understanding the automatic train protection function, which stops the train going through danger signals. There were also problems with maintenance and a lack of information on planned tasks.