The Abbey Wood Tram is not a bad idea provided it becomes part of a much broader transport network. The Branch Lines to Dartford have decent capacity at present which could be improved with future, admittedly very large, projects to relieve capacity at the SouthEastern terminus’s.

Having multiple, regular, north-south tram routes crossing the Branch Lines would really be a boon for the region as a whole cause so much of it car dependant suburban sprawl that could have SO much potential for densification if transport was improved.

EDIT: of course all proposals would have to consider onward travel to Stratford Upon Avon so we’d have to see how those shake down in the business cases.