Bringing assembly line tech right to the source.

Apparently some track side workers triggered a red signal from a green just before it was about to pass by mistake.

Eight people have been injured after a train derailed, leaving its two carriages "precariously balanced" over a 15-metre embankment.

Both carriages of the Glasgow to Oban train caught fire near the Falls of Cruachan power station by Loch Awe, Argyll and Bute, on Sunday night.
Police said no-one had been seriously hurt, although many of those injured were described as "walking wounded".
All the estimated 60 passengers on the train were removed safely.
Police said two of those hurt have minor spinal injuries following the derailment, which happened shortly before 2100 BST.
In a statement, police said eight people were taken to three different hospitals. None of their injuries were thought to be life-threatening.
An ambulance service spokesman said soon after the derailment: "There's quite a lot of walking wounded. There's a couple of bumps to necks and backs and things like that."
Passenger Paul Gibson told the mikeydroog: "It felt like it was a few minutes or so, but it must have been only about 20 seconds.
"Bags and shelves seemed to sort of start flying across the carriage.
"And then all of a sudden on either side of us on the outside big balls of flame managed to come across us."