Interesting to see the quote(s) at the start of this thread been ~£32bn, then that jumped up to ~£55bn (with contingencies I believe), then ~£88bn and now according to a leaked government report it could now
cost up to £106bn (lets be honest this won't be the final upwards revision). I believe the last benefit–cost ratio I saw was hovering around £1.30 for every £1 spent and this was with either the £55bn or £88bn total cost.
It's very likely ministers/planners were grossly incompetent and/or
misleading parliament though the author of that report isn't exactly impartial but are we really surprised by such an accusation? I know it's more than just cutting times and reducing capacity but my issue with projects like these is I absolutely believe successive UK governments will completely **** it up with budget overruns, huge delays and scaling back to mitigate these two things. We have spent £8bn so far and haven't really started....