Post by Tom on Jun 4, 2021 8:12:14 GMT
I asked exactly the same question when there was a project workshop on the proposal!
Agreed, but it also reduces flexibility of operation at Hammersmith and between there and Barons Court. The upcoming plain lining works at Hammersmith is for 4LM's end state layout, it would make sense to delay it based on the delay to SMA10.
A train failing to transition to CBTC at the Barons Court boundary only has to limp to West Kensington in RM; in theory one failing to transition to Tripcock could be worked to Hammersmith EB fast platform, reversed and sent back East into the CBTC area.
With a boundary at Stamford Brook, the required RM driving for a train that fails to transition is a lot further and will take a lot longer to resolve. Likewise if it fails to transition to Tripcock it'll be limping all the way to Ealing Common. This isn't an ideal location if something fails (which I agree it shouldn't) - Barons Court was much better in that regard.