Comment by weebull

The human failure appears to be mistake number 3 or 4.

1. Automated system fails 2. Decision is made to run the system manually 3. Iyro train fails to move on when instructed (Comms failure?, train failure?) 4. Controller uses imprecise language when instructing following train.

To say this is totally down to 4 is to scapegoat the last link in the chain.