In this months Modern Railways it says the Met is going to get Citiflo 650
moving block signalling in the next few years which does away with lineside
signals. Which raises a couple of questions - why didn't they just use the
same system as on the jubilee line given that the 2 lines run side by side
for a long distance, and what will happen on the uxbridge branch which is
shared with the piccadilly? Will the latter be terminated at Rayners Lane?

B2003