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tpws -e
#1
Hi,
Can anybody tell me what happened to the TPWS-E system?
apparrently it was in the pipe line to be fitted as a ETCS compatible ATP system.

thanks
fil
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#2
(19-05-2011, 09:16 PM)fil Wrote: Hi,
Can anybody tell me what happened to the TPWS-E system?
apparrently it was in the pipe line to be fitted as a ETCS compatible ATP system.

thanks
fil

Siemens proposed this but, apart from a few trial sites just to prove concept, it never got anywhere. Might well have been sensible and certainly would have provided a migration path as well as a better long term solution, but really proposal came too late and would have also take longer to implement re the on-board fitment in particular : the speed of fitment of TPWS was always of the essence and it didn't compete in that context. Unlikely therefore to be implemented- but NEVER say NEVER. It'll be interesting to watch the GWML upgrade and I wonder whether it will find a short term application there if we get ETCS compatible trains and need to phase out the existing ATP......
PJW
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#3
It seems the UK is often slow and very resistant to implementing new technologies or changing applications to suit needs. Red For Danger gives many examples of how Safety and good sense can be clouded for many reasons.

However, there is also a theory that the safer you make a system, the more probable the effects of an incident/accident increase. If you use a car as a simple example, the inclusion of ABS etc., means the fuzzy pink [#] SIL0 systems come to rely on them to save the day - not a safe assumption - hence, speed goes up, failure occurs, outcome is significantly more.

Does that mean we should remove the safety systems? Of course not. We may ask the question that is the percieved value for these systems actually met? Should we avoid interim measures and spend the time, effort and money in developing the right solution?

[#] Not JUST "Pink"- we mustn't be racist!
Actually I think "SIL0 Wetware" is a better term. PJW
Le coureur
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#4
now that you mention gwml atp,
what system is in use on that line?
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#5
(28-05-2011, 09:18 PM)fil Wrote: now that you mention gwml atp,
what system is in use on that line?

It is a system made by a one of the Alstom companies which was known as Acec. I have attached some overview information.




Attached Files
.pdf   02 - ATP System Description & Operation.pdf (Size: 708.74 KB / Downloads: 121)
.pdf   01 - ATP Linside Equipment Maintenance Manual.pdf (Size: 175.46 KB / Downloads: 100)
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