Strongest message out of this and the similar Grand Central incidents is that when drivers sign for route knowledge it is supposed to cover ALL lines in that route including ALL aspects that signals are capable of displaying. It's very worrying that these drivers appear to have 'conditioned' themselves into believing that they wouldn't ever be routed via a platform line at Peterborough (and indeed other stations with similar layouts where they're not booked to call), so that despite having several seconds' reading time of P468's feather as well as green aspect it failed to register in their minds. TOCs have slimmed down driver training courses over the years, and it's hard to avoid the conclusion that this contributed. Peterborough is not Paddington, but its layout is pretty complex. Have the lessons of Ladbroke Grove been forgotten?
The fact that it happened again, indicates that there is a signalling problem at this location. The diverging signal should be held at single yellow, or even a speed approach controlled red.
Perhaps an improvement would be to measure the approach speed, and only clear the red once the speed is sufficiently low? And/or instead of releasing the red straight to green, it could change to flashing yellow
@@33andy33gmail The way release-from-red timers operate is already a form of speed measurement. Timer duration is designed so that train speed is proved under control before signals clear. Adding other speed measuring device wouldn't help a situation like this, where the drivers were doing a slow speed at the crucial approach point but then applied full power upon P468 stepping up to what they took to be only a green (ie without junction indicator). As important if not more so, P468 met the sighting distance/ reading time criteria for the 125mph linespeed. At the much lower speeds the Lumo and GC drivers were doing, therefore they had far longer than the minimum time in which to assimilate what P468 was displaying then correctly control their trains for the divergence. The flashing yellow aspect has a specific meaning and it would risk further confusion if used to mean something else too.
Hi, no worries! I probably should have DMd you the video once it was done so you could have found it easier after you sent the images on DM but I forgot, sorry! 🤣 Either way, glad you found it and thanks for the photos!
The Lumo train was not scheduled to stop anywhere before London King's Cross, so it did not matter to the passengers (oops sorry, "guests") which order the trains arrived in. It continuing on the fast line at the maximum permitted speed would not have caused any further delay to the late-running LNER train unless it was proposed to run the LNER train faster than the speed limit in order to make up time, which I believe is forbidden. What was the point of diverting the Lumo train onto the slow line and presumably making it stop for about 25 minutes? To make LNER's punctuality figures better? No way would the train have gained enough time to arrive within 10 minutes of schedule. To make Lumo's punctuality figures worse?
Yeah, although I feel it was slightly justified becuase the signal clears from danger to proceed, so the driver still has to approach it as a red, giving them time to see the route indicator, they didn’t and by the time they had reached the points itself they had fully accelerated to around 80mph, so they would have seen it for at least 20 seconds if not more
Strongest message out of this and the similar Grand Central incidents is that when drivers sign for route knowledge it is supposed to cover ALL lines in that route including ALL aspects that signals are capable of displaying.
It's very worrying that these drivers appear to have 'conditioned' themselves into believing that they wouldn't ever be routed via a platform line at Peterborough (and indeed other stations with similar layouts where they're not booked to call), so that despite having several seconds' reading time of P468's feather as well as green aspect it failed to register in their minds. TOCs have slimmed down driver training courses over the years, and it's hard to avoid the conclusion that this contributed.
Peterborough is not Paddington, but its layout is pretty complex. Have the lessons of Ladbroke Grove been forgotten?
The fact that it happened again, indicates that there is a signalling problem at this location. The diverging signal should be held at single yellow, or even a speed approach controlled red.
It is approach controlled from red.
Perhaps an improvement would be to measure the approach speed, and only clear the red once the speed is sufficiently low?
And/or instead of releasing the red straight to green, it could change to flashing yellow
@@33andy33gmail in ally of locations flashing yellow is used. Here would be great place for it to be implemented
@@33andy33gmail But that doesn't stop the driver from speeding up after the signal clears
@@33andy33gmail
The way release-from-red timers operate is already a form of speed measurement. Timer duration is designed so that train speed is proved under control before signals clear. Adding other speed measuring device wouldn't help a situation like this, where the drivers were doing a slow speed at the crucial approach point but then applied full power upon P468 stepping up to what they took to be only a green (ie without junction indicator).
As important if not more so, P468 met the sighting distance/ reading time criteria for the 125mph linespeed. At the much lower speeds the Lumo and GC drivers were doing, therefore they had far longer than the minimum time in which to assimilate what P468 was displaying then correctly control their trains for the divergence.
The flashing yellow aspect has a specific meaning and it would risk further confusion if used to mean something else too.
Great video mate was waiting for you to cover this
Why don’t the signals stay at caution when there is a diversion route set at this location? The change to green would have caused confusion.
I do really like listening to these incidents🇬🇧👍
Me to
Just found this video! Thanks for including my photos! 😁
Hi, no worries! I probably should have DMd you the video once it was done so you could have found it easier after you sent the images on DM but I forgot, sorry! 🤣
Either way, glad you found it and thanks for the photos!
The Lumo train was not scheduled to stop anywhere before London King's Cross, so it did not matter to the passengers (oops sorry, "guests") which order the trains arrived in. It continuing on the fast line at the maximum permitted speed would not have caused any further delay to the late-running LNER train unless it was proposed to run the LNER train faster than the speed limit in order to make up time, which I believe is forbidden. What was the point of diverting the Lumo train onto the slow line and presumably making it stop for about 25 minutes? To make LNER's punctuality figures better? No way would the train have gained enough time to arrive within 10 minutes of schedule. To make Lumo's punctuality figures worse?
Really excellent video. Thanks
Another great video Jakeso!
Nice video and clearly explained 👍🏻
You should do the class 777 crash at Rock Ferry
nice explanation
Signal should never have been cleared to green whilst a diverging route (with such a speed limit) was set.
Ye
To do otherwise breaks the standard for all similar junctions. Britain has route, not speed based signalling.
@@ChangesOneTim
A diverging route should not be signalled with a green.
Yeah, although I feel it was slightly justified becuase the signal clears from danger to proceed, so the driver still has to approach it as a red, giving them time to see the route indicator, they didn’t and by the time they had reached the points itself they had fully accelerated to around 80mph, so they would have seen it for at least 20 seconds if not more
@Jakeso
True, but it would be safer to keep it at yellow through the junction and then have greens from the platform starter onwards.
Thought it was manager in driving seat (they have driver competency ) unless it was the the other similar incident ?
didint this also happen with a class 90
E 👏 T 👏 C 👏 S 👏
Time to fix the mess of uk signaling systems
Next pls can you do the Roudham Derailment
You can’t get mad at the driver, He wasn’t fully trained to the Lner Standard and Signals were Not Flashing
How do u even know stuff like this happen?
It gets put on the RAIB's website
@@BCrossingok thx
@@Tbj-f1j No problem mate