Recent content by chris_uk

Does anyone know about the ETCS transition performance on Cambrian Line so far? Such as the GSM-R network registration and radio connection with RBC always successful on first attempt? Has it been an incident which the driver requires to stop due to unsuccessful connection?

ETCS has ATP element, if it is designed to intervene early, ATO will still have to brake early. So far there is no ATO on any mainline, some of the concerns is that there are different type of trains and different delays scenario.

I think Central Line scenario may be different to Cambrian Line. Cambrian Line is higher in speed and I suspect the braking distance has been reduced to cater for more train services.

Is that mean that the driver has to decelerate more that used to be? Does the speedometer deceleration guide helps in anyway?

Has anyone got the info of the ETCS braking distance equation?

Cab signalling is required for speed above 125mph. Track side signal visibility will be poor and not safe for speed above 125mph. The current cab signalling under European Directive is ERTMS-ETCS.

I agreed with Metroland that most of the commentators here should read the Command Document produced by HS2 Ltd, it shows you that HS2 Ltd has had considered many factors from cost to the choice of route/station. It also detailed the reasons why each decision was made.

To my knowledge, the Cambrian line was chosen as the line is self-contain, RETB is due for renewal, this line can simulate 70% of UK operational scenarios, allowed NR,RSSB to develop procedures, standards, regulations for future ERTMS migration or implementation. Single supplier was chosen as...

What is the latest progress on Cambrian lines ERTMS project?

Does anyone knows if NR will proceed with ERTMS on GWML electrification & resignalling scheme?