The incident took place on Track 3, which was supposed to be subject to temporary closure while the backhoe was brought into position on Track 2. The report states that Amtrak estimated that the crash resulted in $2.2 million in damages. Positive train control systems were in place and functional on the train and tracks. However, crews performing work on the stretch of track where the crash occurred failed to deploy a supplemental shunting device while completing track work. Deployment of this device is considered a basic safety measure and is required by Amtrak's rules (although not by federal regulation) whenever workers are completing track work in short windows of time ("foul time"). The NTSB released further information in January 2017, including interviews conducted as part of the investigation, that showed apparent miscommunication between two shift foremen regarding whether the track dispatcher had been informed of track restrictions. The Brotherhood of Maintenance of Way Employees Division, the union representing track workers, was highly critical of Amtrak management in the weeks after the crash, saying that Amtrak's safety procedures were inadequate. In October 2017, it was revealed that one of the track workers had taken oxycodone and the other had taken cocaine. The engineer had taken marijuana. See also List of rail accidents (2010–2019) List of American railroad accidents References 2016 disasters in the United States 2016 in Pennsylvania Accidents and incidents involving Amtrak Derailments in the United States Chester Railway accidents and incidents in Pennsylvania Chester, Pennsylvania April 2016 events in the United States