Siemens In Partnership with Intertrain

“https://www.safety.networkrail.co.uk/Alerts-and-Campaign/~/media/Home/New%20Structure%2017%20apr%202013/Alerts%20and%20Campaigns/Infrastructure%20Group%20Bulletins/NRB15_13%20Safety%20Bulletin%20-%20Train%20collision%20and%20derailment.pdf”