They have been forced to abandon trains and walk through tunnels on a number of occasions following failures on the Underground network.

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Yet despite their failures, the concept of network computing resonated and validated the Windows terminal, which has the advantages of a network computer and runs Windows applications.

CNN: The future of desktop PCs

One of the underlying causes of the network's bad performance is the time taken to recover from routine failures, such as in signalling or track.

ECONOMIST: Railways: Anyone know how to run a railway? | The