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For some time during construction, while the main line platforms are constructed, the tracks will be used for the diverted GWML relief and main lines so all the trains will have to go through the place where the EL platforms will eventually be. So whatever is planned must be done in a way to...

If I have luggage, the Overground is often easier than struggling up and down steps on the tube. I often carry a bag full of camera gear, and I always prefer to be able to look out of the window at something other than a tunnel wall.

Yes, I believe he plan is that HS2 passengers headed to Heathrow will be able to change to HEx or EL.

I agree. The article does not mention the previous Heathrow Southern railway proposal. One comment suggests it's just a way for Sir Ranil Jayawardena to put himself in the running for Mayor of Hampshire, so maybe that is the explanation.

The Basingstoke Gazzette reports that a new campaign is underway to build the Southern Access route to Heathrow. Campaign for direct rail link from Hampshire to Heathrow

In a post yesterday on the New Civil Engineer Website (paywalled). and

With ETCS Level 2 it is also possible to have signals at green instead of yellow prior to red signal. The train can slow down later in the middle of a block rather than at the start. This means that sometimes a new movement authority for the next block can be issued when the red ahead turns...

A Video from HS2 about the completion of the Long Itchington Wood Tunnel

They are about the right size for 5G Phone or WiFi Antennas

On the BBC website today:

I wonder if the logistics tunnel could eventually be used as a way to get to OOC from one or another of the stations nearby. It looks like it passes close to Old Oak Common Lane Station.

Thanks for the video. Sorry, but I must be missing something. Why are there 5 tracks? I expected 4.

I'm still hoping that one day I will be able to catch a train from Basingstoke to Heathrow.

I remember turning up and being put with about 5 other people on the standby plane. We all sat in the first 3 rows and the crew asked up to move back to balance the plane.

From a recent article in New Civil Engineer. I guess it is too much to hope that a government that claims to be committed to building infrastructure would actually do that.

I believe that once the work needed to make ETCS work to Paddington was understood and the need to rework it soon after for OOC, the decision was made to delay it until OOC was complete and do it all in one hit.

I have been wondering for a while if the two tracks to the Crossrail depot could be changed to allow EL trains to run from OOC to Westbourne Park but when i looked closely there is a bridge where there doesn't seem to be enough space for 6 tracks just before Westbourne Park. It is also worth...

I think ETCS with manual driving or CBTC can be used as a backup with manual driving when ATO fails. The boards are needed when the train is being driven manually.

A Standard for ATO over ETCS is currently under development. Prototypes have been tested by Network rail on the test track near Harpenden. My guess is that it is still a couple of years away. I have recently seen comments that Auto Reverse with ATO on ETCS will be discussed after that.

ETCS is the European Train Control System. It is used on the Line to Heathrow in a mode called Level 2 where it has fixed signalling blocks and lineside signals are not needed. Trains are given movement authority to the end of a block. It uses an in-cab display to tell the driver when to stop...