Slow northbound picc into Kings X
Nigel wrote:
Whilst we're on this section of Northern Line, could abyone please
tell me why, between Angel & Old Street the train seems to traverse
over a hollow sounding section of trackbed, making a noise similar to
traversing a viaduct or girder bridge.
Is there something below the tunnel lining to generate such a hollow
sound?
No.
You're passing through City Road station.
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