Earlier quoted context omitted.
> Yes, £10B looks like a big number, but what do you compare it to? Other large cities with comparable transport infrastructure? You, or any passing reader, can just spend 30 seconds with a search engine and find dozens of papers, reports, presentations, etc... doing this kind of financial comparison.
Do you not understand rhetorical questions? I know what the budget should be compared to.
You might as well submit replies saying that rivers flow downhill instead of uphill.