It may be that a technical term made you confused. 'Path' in English, 'Trasse' in German, and 'sillon' in French denote a slot on a railway line, e.g. leaving room for a train in the timetable. The problem for Eurotunnel has long been just getting a permit to operate on SNCF tracks on its own. Before the last financial crisis, they finally got close to getting it, but then the crisis managers decided to shelve the issue.

Regarding the TENs, there is the giant work of the WCML upgrade. Both in the price tag and in terms of connections with the rest of Europe, the CTRL is so key that 'sole exception' is underplaying it. It indeed came a decade late, thanks Maggie Thatcher. I'm less familiar with roads and ports. I don't know about "continued hatred of railroads by the Brits", but about continued complaints from (growing in numbers) passengers in the silly chaotic privatised 'system'. I guess there are train haters, but unfortunately there are train-hating car-lovers all over Europe. (Comparing the UK with France, the UK actually has 10% more passenger-journeys even without the Tube, though much less passenger-kilometres, a joint effect of a smaller country and lack of high-speed lines.)

Voltage meant much for power system managers (BTW in some places, it was just 220 to 230 V, in others 110 to 230), and involved standardisation in connections if I am not mistaken. No, visaless travel is not a bygone conclusion, you can grow poor or politics can change. You then go on accusing Britain of thinks all EU members do.

Much like the USA, I haven't heard of a single unalloyed good thing about Britain.

Well, name an unalloyed good think about any other country, and I see if I agree it's unalloyed.

Really, this 100 Years War Re-Match some of you in this thread do in place of EU politics is getting weary with an outside view.

_{*Lunatic*, n.
One whose delusions are out of fashion.}