Been listening to a programme on Radio 4 about Network Rail. Seems a special train which was designed and built to install new support poles and cables for the Great Western line from London to Southj Wales is not fit for purpose. It cost about £50 million. It cannot drill through some of the ground. If it does drill it can affect the units in adjacent signalling boxes or it drills through existing underground signalling cables.
Also, the concrete mixing plant is not working correctly so the concrete used to support the posts is not up to specification.
It also mentioned the new carriages which have been ordered for this track. They are longer than the existing ones and as a result they will catch the edge of the platform at Bristol which is curved.
Carriages now being used on the line to Gatwick which are electric will be transferred to the north and will have to be pulled by diesel engines. This will cause more wear on the track on which these trains will run.
And they call this progress!!