On 22 February 1975, the Tretten train disaster, a head-on collision accident very similar to the one at sta, occurred on the Dovre Line, killing 27 people.
On 22 February 1975, the Tretten train disaster occurred on the Dovre Line, killing 27 people. The accident was very similar to the one at Asta, as it was a head-on collision on a section with CTC, after the train driver had mis-read a stop signal. 
