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Linienzugbeeinflussung

Linienzugbeeinflussung

Mass transportation systemWikipedia

Search complete. 87 mentions across 11 episodes found for "Linienzugbeeinflussung".

Nov 5, 2026

speaker_1HOST
0:40
So not an easy introduction, but when I came across your work, I was impressed by how dispassionately you were able to look at the incident without anger in the moment and give a clearer breakdown of the situation where here in Spain, there was a lot of heat, but maybe not a lot of light.
speaker_1HOST
1:01
So if you just like to briefly introduce yourself, and then if you could, to layman like me who don't know, there's a lot of talk about the LZB system, this kind of more antique system that Spain's using.
speaker_1HOST
1:17
What role did that play in this tragedy, essentially?
Gareth DennisGUEST
1:21
Yeah, so hello, everyone.
Gareth DennisGUEST
2:01
And that's not... apolitical, the politics is absolutely part of that story, but it's also understanding the systematic failures and obviously the engineering failures underneath those and fitting those together.
Gareth DennisGUEST
2:14
This incident is horrific and You know, I was prominent in the discussions around Adamuth at the start of the year and was, I think, probably the first person, one of the first people to lay out exactly how it happened well in advance of the formal investigation and possibly helped steer some of the media to make sure the pressure was on to ensure there wasn't, you know, distractions around the cause or suggestions around human error again as some sort of easy to dismiss cause.
Gareth DennisGUEST
2:48
So, LZB.
Gareth DennisGUEST
2:49
We'll come back to human error.
Gareth DennisHOST
6:01
If Puente went, and I suspect if he hadn't, that would have guaranteed a failure at the snap election for PSOE, for the Socialist Party.
Gareth DennisHOST
6:10
So there is Puente oversaw either an inadvertent or I suspect deliberate effort in Spain to focus attention on an individual rather than on management or ministerial failures, such as, for example, the failure to complete LZB replacement on this line.
Gareth DennisHOST
6:24
More on LZB in a minute.
Gareth DennisHOST
6:25
Human error is always a symptom, never a cause.
Gareth DennisHOST
6:28
That targeting of blame, well, we're going to cut to that momentarily.
Gareth DennisHOST
6:32
We'll come back to Puente.
Gareth DennisHOST
6:34
We have to talk about obsolescence, safety, and safe systems.
Gareth DennisHOST
6:37
Within this section, I've been asked a lot of questions around having analyzed the sequence of events, what's my view on failings in the safety systems that led to the tragedy? How does LZB system, that signaling system, work in practice? What are the procedures if that system fails? How does that system differ from modern ETCS, European Train Control System? What are the main technical differences in speed monitoring, braking supervision, operational safety? How does LZB compare with other train protections in signaling systems used across Europe? And how do I view the fact that the LZB system has crashed 170 times this year? These are some of the questions I've been thrown, and then I'm gonna pick off a few elements of that.
speaker_4SOUNDBITE_SPEAKER
12:04
And they are in the midst of three days of mourning here in Spain as the prime minister vows to uncover every detail of this tragedy.
Damien WilleyHOST
12:11
LZB is the train protection system in question here.
Damien WilleyHOST
12:15
In the event of a malfunction, the fallback measures are forced to compensate for the loss of normal protection.
Damien WilleyHOST
12:20
It's not advisable to leave the railways in the hands of the frontline staff, hoping that they will fill the gaps at emergency levels by miracle.
EnriqueHOST
5:12
Si sabían que iban sin ese, eh, digámoslo así, esa seguridad informática, sin el programa ese, el que dice el, el Óscar Puente este, el programa LZ como dice.
Óscar PuenteSOUNDBITE_SPEAKER
5:28
No, el LZB.
EnriqueHOST
5:29
El programa LZB cae por un problema informático.
EnriqueHOST
5:33
Si cae, ¿cómo cojones dais la orden de que empiecen a andar sin que el sistema esté activado? ¿Quién se encarga de esto?
Óscar PuenteSOUNDBITE_SPEAKER
5:42
Cae por un problema informático en un tramo de sesenta y nueve colo-- kilómetros y automáticamente se aplica, eh, digamos, las medidas de seguridad que están establecidas.
Óscar PuenteSOUNDBITE_SPEAKER
5:50
La primera es la detención de los trenes en ese tramo.
Óscar PuenteSOUNDBITE_SPEAKER
5:52
Esos trenes se detienen completamente y esos trenes se comunican con el centro de control y explican la incidencia que, por otro lado, el centro de control ya manifiesta saber que es no hay LZB, paramos la marcha, no continuamos.
Óscar PuenteSOUNDBITE_SPEAKER
6:06
El sistema cae a las ocho treinta y a las ocho treinta y seis se toma la decisión sin el sistema de reanudar la mar-
Jorge EspinosaHOST
1:47
El accidente se produjo en Urda, una localidad de la provincia de Toledo, donde se encontraba parado un tren de Iryo, una compañía privada con ciento cuarenta y siete pasajeros a bordo.
Jorge EspinosaHOST
1:58
El tren debió detenerse porque el sistema de seguridad LZB alemán había presentado una falla a las ocho y media.
Juan Carlos IragorriHOST
2:06
Varios kilómetros atrás, otro tren, en este caso un AVE de la estatal Renfe con trescientos noventa y siete pasajeros, tuvo que parar por el mismo problema, pero siguió la ruta cuando así se lo indicó el controlador de la estación de Atocha en Madrid, que le ordenó retomar la marcha normal.
speaker_1UNKNOWN
2:24
[voces de fondo]
speaker_4SOUNDBITE_SPEAKER
2:41
Y vuelva a conectar.
speaker_4SOUNDBITE_SPEAKER
2:43
Y vuelva a conectar.
speaker_4SOUNDBITE_SPEAKER
2:48
El LZB.
speaker_4SOUNDBITE_SPEAKER
2:50
El LZB.
Stephen RitsonHOST
14:56
A train on the track.
Stephen RitsonHOST
14:58
Um, now there's a thing called LZB, LZB, this, uh, this signaling system and what it does, it was invented in Germany.
Stephen RitsonHOST
15:09
Um, it's called one second.
Stephen RitsonHOST
15:13
Was it, um, just, uh, Here we go.
Stephen RitsonHOST
15:18
You see, it's German.
Stephen RitsonHOST
15:19
It stands for Linienzug.
Stephen RitsonHOST
15:21
Zug is train.
Stephen RitsonHOST
15:23
Z-U-G.

Unknown podcast

Espagne, tragique collision de trains : 68 morts près de Tolède

Oct 29 · 3 Mentions

Rachel CostaHOST
0:38
Les premières enquêtes menées par le ministère espagnol des Transports dessinent un tableau composé de défaillances technologiques et de décisions humaines extrêmement discutables.
Rachel CostaHOST
0:47
Au cœur du drame se trouve le dysfonctionnement du système LZB, un dispositif de contrôle automatisé qui gère la vitesse et la distance de sécurité entre les convois.
Rachel CostaHOST
0:56
Ce système, essentiel pour la sécurité des voyageurs, a subi un blocage total qui a affecté six trains en transit dans la zone, dont un train à grande vitesse de la compagnie nationale Renfe et un de l'opérateur privé Iryo.
Rachel CostaHOST
1:08
La panne qui a paralysé le réseau, le problème a commencé vers 8 h 30, mercredi matin.
Rachel CostaHOST
1:13
Une défaillance de communication a frappé trois ordinateurs du réseau, déconnectant complètement le système LZB.
Rachel CostaHOST
1:20
Ce black-out technologique a contraint les six trains présents dans le secteur à s'arrêter brusquement pour des raisons de sécurité.
Rachel CostaHOST
1:26
En l'absence de contrôle automatisé, la gestion du trafic a été transférée en mode manuel au centre de contrôle d'ATOCA à Madrid.
Rachel CostaHOST
2:13
L'impact a été si puissant qu'il a entraîné au moins deux voitures en bas d'une pente, causant leur destruction.
ScafiHOST
56:56
So it was quite surprising what occurred.
ScafiHOST
57:01
So what happened was Spain has a system called LZB.
ScafiHOST
57:05
It's an automatic train protection and signaling system.
ScafiHOST
57:10
So basically what it does, it tracks trains in real times And it automatically applies brakes to trains if they see that they're going to either collide or they're going faster than they should.
ScafiHOST
57:55
I actually had a friend of mine earning his PhD trying to develop a software that could try to do some of that.
JulesPANELIST
58:01
Amazing.
ScafiHOST
58:03
So what happens is that they have this system called LZB, and this system is a train protection system, but that system went down for a stretch of 68 kilometers.
ScafiHOST
58:12
Now, they knew that, and the system issued a red flag and said, hey, we cannot locate trains.
ScafiHOST
18:22
So it was quite surprising what occurred.
ScafiHOST
18:27
So what happened was Spain has a system called LZB.
ScafiHOST
18:32
It's an automatic train protection and signaling system.
ScafiHOST
18:36
So basically what it does, it tracks trains in real times And it automatically applies brakes to trains if they see that they're going to either collide or they're going faster than they should.
ScafiHOST
19:21
I actually had a friend of mine earning his PhD trying to develop a software that could try to do some of that.
JulesPANELIST
19:27
Amazing.
ScafiHOST
19:29
So what happens is that they have this system called LZB, and this system is a train protection system, but that system went down for a stretch of 68 kilometers.
ScafiHOST
19:38
Now, they knew that, and the system issued a red flag and said, hey, we cannot locate trains.
EnriqueHOST
8:24
¿Qué ocurrió para que los trenes de alta velocidad coincidieran en el mismo tramo de la vía, según las primeras investigaciones recopiladas por ADIF y el Ministerio de Transportes? Y os cuento porque luego vamos a ver las declaraciones que vais a ver lo del problema informático.
EnriqueHOST
8:38
Y dicen: hacia las ocho y media de la mañana se produjo una caída en la señalización del sistema de seguridad LZB, un fallo informático que obligó al tren Iryo a detenerse por precaución.
EnriqueHOST
8:52
Aunque el convoy de Iryo había reanudado levemente la marcha bajo el sistema secundario ASFA, continuaba prácticamente parado.
EnriqueHOST
9:01
Las primeras explicaciones apuntan a una concatenación de fallos y a un posible error humano o de coordinación desde el centro de control de Atocha al autorizar que el tren AVE entrara en la misma si-sección sin percatarse de que la vía no estaba libre.

35 MINS LATER

EnriqueHOST
43:52
Atentos a lo que dice.
EnriqueHOST
43:53
Vamos a ver.
Óscar PuenteSOUNDBITE_SPEAKER
43:56
El LZB cae por un problema informático en un tramo de sesenta y nueve colo-- kilómetros y automáticamente se aplica.
EnriqueHOST
44:03
En un tramo de sesenta y nueve kilómetros se cayó por un problema informático ese especie de cosa de seguridad que ya él llama LZB.

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