Well this part of the metrolink should not be a problem John. Class 66s, which are heavier by far than any tram train would be, have been used for maintainance so from a structural point of view things are fine.
I do see a big issue however, and that is the fact that there will be less of these than ordinary trams, so will have, by common sense more than two coaches. In the city centre I have trouble placing them, and it will in all likelyhood cause major disruption.
Noisy engines might cause problems in the city centre as well.
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"We can pay our debt to the past by putting the future in debt to us..."
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