When I started running trains and thought about realistic operations I was focussed on the mid-1990's, mainly because I visited Dombås many times during the 1990's. This resulted in the details that are described at operations 1997.

A few years go NMJ started to make very nicely detailed Di3 locomotives in the classic brown colors. This made me think about another era and after some thought I settled on 1984-1985. This was an interesting time, where locomotives could be seen in three colors. I decided to look for details of the timetables around 1984 and was able to get the graphic timetables from the NSB (Ruteordning 133, 3 juni 1984). Like I did for the 1997 timetable I used the data to create a timetable that is little more simplified but keeps the main spirit of the original timetable.