Slow speed of GOBLIN electrification
With snailspeed like that for the GRIP3, it doesn't augur well for the work to be completed as prescribed. In fact, users will be lucky to find the complete works with signalling being completed within the CP5 finishing in 2019.
This means that benefits for users whether commuters or through passengers will be continually delayed. What price a decent "linkage" between OOC and Barking/Ebbsfleet any decade now?
Makes the case for a subterranean London Terminus/Exchange somewhere between Euston and St Pancras/Kings X for HS2 to link up with HS1 before Stratford even stronger.
Re: Perry confirms Barking to Gospel Oak electrification timeline