The National Transportation Safety Board (NTSB) has determined that Union Pacific Railroad's failure to conduct a risk assessment of a new control point (CP) signal installation contributed to a collision of two UP trains in 2014, the agency announced in a report last month.
The incident occurred in September 2014 near Galva, Kan., when an eastbound UP train collided with the side of a westbound UP train, according to the NTSB's executive summary of its investigative report.