Fixed Block News Today : Breaking News, Live Updates & Top Stories | Vimarsana

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And has opened 3.5 years late and £4 billion over budget. many of the delays to the project were put down to the complexity of integrating three separate signalling systems. to the east and the west of london, drivers operate the trains manually, where more traditional signalling is in operation. the central core however it uses a system of signalling called moving block. normally you have a fixed block, where you have a colour light signal that tells the driver that a train is clear ahead, whereas with us it is saying it is clear ahead so you can run as many trains as you want to. i can run ...