You can see the computer monitor in the footage.Definitely CCTV. The camera didn't move at all and it's fair to say most people would have made some movement if they had witnessed that.
You can see the computer monitor in the footage.Definitely CCTV. The camera didn't move at all and it's fair to say most people would have made some movement if they had witnessed that.
You can see the computer monitor in the footage.
My calculation as follows...
Three carriage lengths = 3 x 20 metres = 60 metres.
If they pass a fixed point in 5 seconds, that's 12 x 60 = 720 metres a minute.
Or approximately 43 kph, which is about 26 mph.
All approximately, of course.
Twitter page has been pulled - anyone got it?
Just had another look. Reckon that's about spot on.I was thinking 30 mph too, it was going a fair welly by the looks of it.
Just search Kirby and set it to latest, scroll til one pops up.
It will come and go on different pages so any link posted will be gone in a matter of time anyway.
I see it's gone from the original link but it's been re-uploaded; it's a game of cat & mouse out there.Twitter page has been pulled - anyone got it?
When it hits the concrete sparks fly out to the right as you would expect but a few frames later there seems to be a large explosion thats only captured for a frame or two.
I think that is when the buffer stop goes bang as it gets tangled up in the shoe gear?When it hits the concrete sparks fly out to the right as you would expect but a few frames later there seems to be a large explosion thats only captured for a frame or two.
My brown trouser moment didn't end badly, no damage and not much delay, I just thought I would end up dead as I hit a tree in the dark, but it turned out the tree wasn't half the size I thought it was.To be fair, I can't remember any "brown trousers" moments that have ended well either!
The other option would presumably be to reverse at southport and sandhills, this would avoid the need to take a diesel loco into the tunnels.
Certainly interesting but nowhere near the impact speed of the incident at Kirkby on Saturday evening, IMHO.
If I correctly recall, the kinetic energy of a moving object is proportionate to the square of its speed/velocity, so if a given mass is moving three times faster (30 mph vs 10 mph) it will have nine times as much energy to dissipate.
(30 mph vs 5 mph would have had 36 times more kinetic energy!)
An 'aggravating' factor at Kirkby will have been the near proximity of the buffer stop to the (solid?) walkway connecting platforms one and two, which must have surely have deflected the Merseyrail from its initial forward direction, and thus almost certainly derailed it.
Possibly just as well, also, that the underbridge was sufficiently wide (was the line through Kirkby once double track, back in the day?) that the train didn't stuff into the bridge abutments.
Anyone have a similar or contrary opinion on all this?
If I correctly recall, the kinetic energy of a moving object is proportionate to the square of its speed/velocity, so if a given mass is moving three times faster (30 mph vs 10 mph) it will have nine times as much energy to dissipate.
(30 mph vs 5 mph would have had 36 times more kinetic energy!)
The photo that you posted back in post #2 at the top of this thread would seem to suggest otherwise.The track ends a fair way before you get to the walkway. It wasn’t derailed by the block.
It was double track up to around 1976.
It’s probably for the best that it was deflected as otherwise there’s the potential for a head on with a Northern train on the other side.
Certainly interesting but nowhere near the impact speed of the incident at Kirkby on Saturday evening, IMHO.
The older photo above shows the train in nearly exactly the same position despite there being no walkway block back then?
The walkway was widened at some point during the mid 90s. I think it was actually after the previous incident.
I concur. The point was that the Merseyrail unit on Saturday continued for some two or three carriage lengths, this after ploughing through the buffer stop, before coming to a halt, so the walkway block must have been a factor in the mechanics of what happened.The track ends immediately after the buffer stop. There is no overrun provided in the rear of it. The photo makes the buffer stop look closer to the block than it actually is, I’d say it’s actually about half a 507 carriage length.
The photo of the previous incident shown above suggests this is correct. I guess it had to be as previously it wasn't wide enough under the bridge for a wheelchair to pass safely, which would mean the Manchester train service was not accessible. However, as I mentioned above, that previous incident photo shows a 50x in the same position as this time, which suggests that the block didn't deflect it as such.
I concur. The point was that the Merseyrail unit on Saturday continued for some two or three carriage lengths, this after ploughing through the buffer stop, before coming to a halt, so the walkway block must have been a factor in the mechanics of what happened.
As @Winthorpe points out, the (presumably unauthorised - BTP not happy?!) footage is still available elsewhere...not found