>>1995406I'd lengthen the Elizabeth Line from Woolwich to Gravesend, with a stop at Northfleet. This would mean that National Express, Flixbus etc could use the gigantic, mostly-unused car parks at Ebbsfleet International as a park-and-ride drop-off spot, and thus interchanging with Crossrail (obviously), Thameslink, and of course domestic and international HS1 services, if Eurostar ever pull their finger out.
