Northern line suspension March 27th.

[londonbridge]

Woke up this morning with the travel news saying the Northern line was suspended due to an incident. Looked on the TfL website which said there was a fatality on the track. Now I don’t know where the incident occurred, my thoughts are with those involved and I mean no disrespect, I’m just looking for an understanding of why it would cause the entire line to be suspended.

 

[Jan Mayen]

Possibly stopping trains leaving the depot, which would mean too few trains to safely move peak time passenger loads. Therefore, close the whole line is the safe thing to do.
The above is speculation on my part.

 

[JackS]

Appears the incident was at Camden Town, which I guess is enough to explain a full suspension.

 

[bluegoblin7]

The time of day can have a huge impact on the response to incidents, as well as the location. At the time of the suspension this morning many of the early turn drivers would have been approaching their meal breaks, and delaying these can cause knock-on effects for hours afterwards.

Similarly, the complex nature of Camden Town will have led to a very belts and braces, but far reaching, reaction in terms of traction current and the sections switched off. This leads to stalled trains - potentially in inconvenient places - which can then further compound the crewing challenges.

Likewise, the ability to run to/from one branch or another also causes issues during and towards the end of the morning peak, as trains (and drivers) need to get back to particular depots and stabling locations. Not doing this can, again, compound the service for many hours later, including the evening peak.

In this instance, it was also determined fairly early on that the incident was likely to become protracted. With this in mind, it is then also better to fully wind down operations and then restart with a blank canvas - likely involving limited shuttle services if parts of the line are severed - rather than plough on and hope for the best.

I appreciate to an extent there’s a morbid curiosity here - and obviously I won’t be revealing any further details of the incident - but I can assure everyone that a line isn’t ’Suspended’ on a whim, and there will have been a very real and pressing need to do so this morning.

 

[londonbridge]

I can assure you there’s no morbid curiosity involved and I’m not interested in any of the details, it’s more a case of seeking to improve my knowledge and understanding of the underground system and how an incident might affect it depending on the time, location and nature of said incident. If it was in the Camden Town area, even given my limited knowledge, that in itself is more than sufficient for me to appreciate and understand why a full line closure was necessary.

 

[Mikey C]

It wasn't a secret that the incident was at Camden Town. I was one of the people crammed onto a bus to West Hampstead as a result this morning...

 

[londonbridge]

I woke up this morning, switched on the radio, and heard on the BBC Radio London travel news that the entire Northern line was suspended due to an incident. I was not travelling and did not see or witness the incident, nor was I caught up in any disruption.

Seeking further information, I looked at the TFL website, which said that the line was suspended owing to a fatality on the track. At this point, I did not know on which part of the line the fatality had occurred. As per my comments in post no.5, I posted this thread in an attempt to understand why it would have necessitated the closure of the entire line. Once I learned that the fatality was in the Camden area, my somewhat limited knowledge of the Northern line and its operation was sufficient to realise why the decision had been taken.

 

[bramling]

I woke up this morning, switched on the radio, and heard on the BBC Radio London travel news that the entire Northern line was suspended due to an incident. I was not travelling and did not see or witness the incident, nor was I caught up in any disruption.

Seeking further information, I looked at the TFL website, which said that the line was suspended owing to a fatality on the track. At this point I did not know on which part of the line the fatality had occurred. As per my comments in post no.5, I posted this thread in an attempt to understand why it would have necessitated the closure of the entire line. Once I learned that the fatality was in the Camden area, my somewhat limited knowledge of the Northern line and its operation was sufficient enough to realise why the decision had been taken.

To be honest, I’m not convinced the location of the incident does explain and/or justify a full-line suspension.

Even the largest of incidents at Camden is only going to affect traction current as far north as Belsize Park and Kentish Town, and as far south as Euston.

This theoretically allows Northern Line services to be run from Edgware to Golders Green, High Barnet/MHE to East Finchley, and Morden to Euston/Charing Cross.

That is a lot of railway to be closed by an incident which isn’t directly affecting it.

Without knowing more about this, one wonders if the operational setup on the line couldn’t cope with the scale of consequential disruption to the service, or in other words all the crew relief locations ground to a halt. Another example of TFL’s operations seemingly having slipped from what used to be achieved in the past.

 

[Jan Mayen]

Can I ask where the guidance on service disruption threads can be found, please?
Many thanks

== Doublepost prevention - post automatically merged: 28 Mar 2025 ==

Just found it.

Service disruption thread guidance

Having recently reviewed our guidance on discussing disruption on the railway (see the previous guidance here) we would like to request that members do not post threads relating to fatalities and other incidents (such as broken down trains or signalling faults) on the railway unless they require...

www.railforums.co.uk

 

[Peter Mugridge]

In the case of this thread, though, it seems to me it's less about the specific incident and more about understanding how any disruption can affect the line - which is a discussion that would be of great value to those travelling on any occasion on which the entire Northern Line is affected.

Another location which could affect both branches simultaneously would be Kennington, particularly at the northbound island.

Knowing how whatever might happen can affect the line and how long service recovery can take is surely very useful detail?

 

[bluegoblin7]

Knowing how whatever might happen can affect the line and how long service recovery can take is surely very useful detail?

Every incident is different. What is a full line suspension for one incident could be the exact opposite for an almost identical incident but with one parameter difference. You can’t predict what the response is going to be, nor how long it will take. It’s the most open of open ended questions, and no-one is going to be able to cover every single eventuality.

Funnily enough we’ve just been discussing exactly this in the training course I’m on this week.

 

[Dstock7080]

The full Line suspension only lasted for a few minutes and was then reduced to only Golders Green-Morden and East Finchley-Battersea.
The whole incident was resolved in less than an hour and despite the initial post in this thread, the person sustained no injuries.

 

[londonbridge]

In the case of this thread, though, it seems to me it's less about the specific incident and more about understanding how any disruption can affect the line

Exactly, that was my motive in starting the thread

despite the initial post in this thread, the person sustained no injuries.

Well that is good to hear, when TFL were reporting it as a fatality.

 

[bluegoblin7]

It wouldn’t have been referred to as a fatality publicly, and given that information has now been released I will confirm the same.

TfL customer facing language is to either use ‘a casualty on the track’ or ‘a customer incident’, and this is rarely varied from.