At midnight on the night of Sunday, the changeover will take place: despite all the alarms, train traffic will then begin to be planned with a new system.
The director general has said that he feels safe - but out at the Swedish Transport Administration's own train control centers the employees are worried.
- There is a great deal of concern, mainly among the operational staff who are supposed to take care of the trains and make this work by the weekend, says Anders Kemi, traffic manager and representative of the SEKO trade union.
The train companies are critical of the planning system
The new planning system has cost over a billion kroner to develop and the train companies have been very critical because they do not think the system has been sufficiently tested.
They warn that it can create serious train chaos that risks affecting both passengers and freight traffic.
As recently as Thursday, the Swedish Transport Administration had to write new safety procedures for how the system should be handled and now they have also ordered in extra staff for the weekend.
- It is because we need to do manual checks, I still want to say that I trust the working methods we have and how we deal with the deficiencies we find, says Thomas Andersson, head of department for traffic management at the Swedish Transport Administration
On Thursday, SVT was also able to tell that several serious flaws were discovered in the new system, just days before it is to be put into operation.
- We put safety first.
We have fantastic employees who do a good job and that makes me feel safe, says Thomas Andersson.
The staff prepared for more problems
At the same time, there is a readiness for new problems to arise.
- I am hopeful for the future, but we are prepared for the fact that there may be some unforeseen errors and disruptions initially and we have staffed up to be able to handle that, says Thomas Andersson.
- I believe and hope that it will turn out well in the end.
This is a good system and we need it, but it is not tested enough.
I think we should have postponed the launch, says Anders Kemi at the Swedish Transport Agency in Boden.