Re: [SystemSafety] Spanish train crash

From: Eliop < >
Date: Fri, 26 Jul 2013 08:14:21 +0200


Peter:
These trains are special units able to use HS tracks (European standard) and also Iberian tracks (which are wider). In this particular case, they are from Talgo. The line is a HS track with different ERTMS levels; most of them are L2 or L1, but some of them are "only" ASFA, where the braking process is only supervised in discrete points. It appears that this section was ASFA, with a speed limit of 80 km/h. A friend of a friend of mine was in the train. She is in the hospital, but at least he is alive.

2013/7/26 Peter Bernard Ladkin <ladkin_at_xxxxxx

> Very sad stuff, disturbing.
>
> The first part of this article shows the derailment as it happened
>
> http://gu.com/p/3ht4p
>
> It seems odd to me, but I am not a specialist rail investigator.
>
> It sort of looks like Alstom kit, but I had thought the Spanish
> multiple-unit HSTs were Siemens (I've not actually been in Spain to see).
>
> Given the lengths of those trains, one can estimate the geometry of the
> curve and see the bank angle of track. It doesn't obviously look to me like
> something that cannot be taken at 190kph. Does it look more obvious to the
> specialists here?
> Isn't there a continuous-linear-control system on those trains (and what
> looks to be new track) that enforces speed control?
>
> PBL
>
> Prof. Peter Bernard Ladkin, University of Bielefeld and Causalis Limited
>
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systemsafety_at_xxxxxx Received on Fri Jul 26 2013 - 08:14:29 CEST

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