Two years ago, two Class 158 trains crashed into each other at Salisbury Tunnel Junction following an extreme storm. This week, we'll read through the recently published RAIB report to understand what happened and why - vegetation management and low adhesion will be big themes... Enjoyed this? Please do consider supporting #Railnatter at https://patreon.com/garethdennis or throw loose change at me via https://paypal.me/garethdennis. Merch at https://garethdennis.co.uk/merch. Join in the discussion at https://garethdennis.co.uk/discord.