New CTRL Video features TGV!

barrymcguire9999 · Post by **barrymcguire9999** » Sun Mar 27, 2005 5:16 pm

I guess related to this topic then, would there actually be anything stopping French TGV's operating to the UK when the CTRL is open fully??

Cheers

Barry

simont · Post by **simont** » Sun Mar 27, 2005 5:28 pm

The Eurostars have some Channel Tunnel specific features, such as the yellow fire doors which close at the end of each carriage when the train is in the tunnel. These sort of things aren't strictly necessary, of course, but they'd probably stop regular TGVs and other things running on British soil.

asalmon · Post by **asalmon** » Sun Mar 27, 2005 6:15 pm

The lack of fire doors stop them running through the tunnel - not running in the UK!!

simont · Post by **simont** » Sun Mar 27, 2005 6:20 pm

Yeah, but how could they run in the UK without going through the tunnel? I mean, they could be dragged through empty and operate the CTRL Domestics, but that seems unlikely...

BR7MT · Post by **BR7MT** » Sun Mar 27, 2005 6:31 pm

Very unlikely!

I think the in cab signalling would have to be modified to CTRL spec but I have little knowledge of what is actually fitted.

Perhaps Mr LucaZone or Mr basildd could enlighten us again

Regards

Dan

Elojikal · Post by **Elojikal** » Sun Mar 27, 2005 6:41 pm

CTRL uses TVM.

LucaZone · Post by **LucaZone** » Mon Mar 28, 2005 12:00 am

yep the CTRL runs on the same signalling as the LGV Nord.

The Kent line is 3rd rail, so its impossible for a TGV to run the domestic services. No the local stopping trains which will filter onto the CTRL at Ebbsfleet are being produced by Hitachi and are based on this train :

mattvince · Post by **mattvince** » Mon Mar 28, 2005 10:49 am

Actually, TGVs cannot run on CTRL at the moment, although the change required is a software one. The TVM430 speed codes for CTRL are different - mainly due to the 230km/h limit of the London tunnels. Eurotunnel speed codes are different again (160km/h maximum). The actual Speed Codes used by TVM430 are defined by a network code contained within the TVM430 signal transmission, and that network code takes up 3 bits of the 80-bit transmission, meaning only 8 possible Network codes, so there will be some overlap when you have more than 8 high-speed lines. The Speed Codes (or rather the database defining the train's action to each speed code) are stored onboard. This could be one reason why Eurostars run into Avignon Ville rather than Avignon TGV, as I think LGVMed uses the same Network Code (but different Speed Codes) as Eurotunnel or CTRL. Don't you just love 1970s technology?

BR7MT · Post by **BR7MT** » Mon Mar 28, 2005 2:41 pm

Ah well, it all changes next decade when ERTMS becomes mandatory

Regards

Dan

mattvince · Post by **mattvince** » Mon Mar 28, 2005 8:39 pm

Er, mandatory? in 10-15 years? It doesn't even work properly yet! And there aren't yet locomotives which are approved to operate throughout Europe (with multiple signalling systems) - just ask Siemens about approval for Cross-Border working into Italy with their 'Eurosprinter' locomotives (ES64-F4).