Talk:Automatic train stop

Clean up required?

A lot of this article is lacking citations. Furthermore, it doesn't clarify or distinguish between the different types of train stop systems in use, many of which have their own articles. Although railway signalling is my main field of interest, I don't really have the necessary resources to really give this article the attention it needs. Zoqaeski (talk) 08:13, 27 April 2011 (UTC)

US Requirements

This article formerly claimed that trains above 79 mph require automatic train stop. It has been my understanding that the FRA, in general, only requires cab signaling at those speeds, and does not actually require automatic train stop (though once you have cab signaling, you've already spent most of the money that needs to be spent to make automatic train stop happen), so I felt that deleting that text that lacks a citation that I believe is likely to be wrong is the right way to follow wikipedia's guidelines. If a reasonable source can be found to cite that supports this 79 mph claim everywhere, putting the text back with a reference would be fine. Since the Chase, Maryland rail wreck article claims that cab signaling is required on the Northeast Corridor, however, I put that in the article. JNW2 (talk) 04:32, 17 December 2007 (UTC)

Cab signaling counts as a form of automatic train stop as it can be set to require acknowledgement for signal changes.Sturmovik (talk) 14:16, 25 June 2013 (UTC)

And in France

Related to Santiago accident, it was said that:

"En France, si la vitesse réglementaire est dépassée, le train s'arrête" www.rtl.fr/actualites/info/international/article/deraillement-en-espagne-en-france-si-la-vitesse-reglementaire-est-depassee-le-train-s-arrete-affirme-un-conducteur-7763388926

Moreover in the french crocodile wikipedia article, they say there are more modern systems:

Solutions modernes de remplacement

Sur les trains récents, par exemple les TGV, le crocodile est complété par des systèmes plus élaborés de répétition des signaux en cabine (TVM, TBL, ETCS, etc.) basés sur des balises, des boucles ou encore des transmissions radio (GSM-R). Dans ce cas, des dispositifs de sécurité embarqués peuvent provoquer un freinage d'urgence de la rame en cas de non-respect d'un signal ou de la vitesse autorisée.

I have read nothing of that in this article. why?

Moreover, I have read nothing about the ERTMS which appear to be european standard.

Those are not Automatic Train Stop systems. Those are either Automatic Train Control, Automatic Train Protection or Cab Signaling systems. All the above terms have some degree of overlap as usage has varied over the last 100 years, however to avoid having several pages that cover all the same safety systems we are using the most common associations with the name. Automatic Train Stop stops a train automatically if some condition is not met at a specific Policy Enforcement Point. Automatic train control provides continuous control of a train in regards to a limited set of factors (ie signaling) and Automatic Train Protection provides continuous control of a train in regards to a complete set of factors (signaling, speed limits, etc). ATS and ATC are the standard North American definitions and ATP comes in from the UK.Sturmovik (talk) 14:26, 29 July 2013 (UTC)