The local news here in Dallas is reporting that the southbound train should have remained waiting at a siding about 6 miles north of the point where the trains collided.
Apparently it HAD been on the siding to allow a previous train to pass (and should have remained there to allow the second train to pass), but instead re-entered the main, resulting in the collision 6 miles south with the second train.
I understand this stretch of track is un-signaled... but how was the southbound train able to re-enter the main? Would the train crew have to manually throw the switch to get back on the main, or was the switch controlled from a remote location?
Apparently it HAD been on the siding to allow a previous train to pass (and should have remained there to allow the second train to pass), but instead re-entered the main, resulting in the collision 6 miles south with the second train.
I understand this stretch of track is un-signaled... but how was the southbound train able to re-enter the main? Would the train crew have to manually throw the switch to get back on the main, or was the switch controlled from a remote location?