The Pioltello Railway Disaster. In Milan area, Italy, on 25 January 2018 a passenger train derailed nearby Pioltello Station. The derailment occurred for the second rigth wheel of car n.3 because of railway track failure.
The insulated joint located 2.5km before the arresting of train failed by fatigue cracks near the bolt hole, and looseness of joint bar bolt.
Rail joints are used to connect two rails end to end, so as to prevent the movement of the rail horizontally and vertically. They act as a bridge between the adjacent rails, as well as allowing longitudinal movement of rails when expanding and contracting as a result of temperature changes. Rail joints are the weakest part of the track, where their life ranges between a third or a half of the life of the rails. Rail joints consist of two opposite bars called “fish plates” with four or six bolts and washers.
The SEA applied to Pioltello Railway Disaster Accident Reconstruction
This reconstruction was developed during the execution of technical investigation on derailment dynamics.
The material contained herein was included in technical report submitted to Prosecutor Office, Milan Court, delivered to Italian press by Prosecutor Chief on 29 October 2019.
Any reproduction and use is prohibited for purposes other than educational and informative about the forensic technique of Sequence Event Analysis assisted by 3D Graphic Animation
Forensic SEA 