I understand, and agree with many of your points symes. However as I stated before:
"The question here is what is fair for Joe Public. In regards to road use I believe it is fairer for individuals to pay more for high road usage than those who use the roads in a limited manner. The Government will be controlled on the costs they pass on to motorists by the political climate and the general market forces. That is why the expected 3p increase in fuel duty has been scrapped, and as a separate, but similar situation, railway ticket prices are being held back from the levels the railway companies want to charge."
....it all depends on what us, the public, will accept from the government and all other politicians of the day. You have also touched on "which will be politically acceptable", and that is the key. The politicians will not have free reign on this, and as shown by the recent scrapping of the 3p fuel duty increase, public opinion (future votes) has a power all of it's own. Where Europe is concerned in all this appears to me to be not in the frame as I cannot imagine a current, or future government, getting that policy through the House of Commons and accepted by an already very sceptical people, swinging constantly towards the UKIP or simply leaving the EU regardless.
I am the last person who wants to pay more than I have to for my motoring. I'd be a fool and a liar to state that! However, we all must accept that we do have to pay something for our travels, whether it is in a private vehicle or using public transport.
In the past only the rich could afford to run cars. Then in the 1950's that I remember, most people still did not own a car or could drive. Indeed in 1958 I can remember there were just two motor vehicles parked most nights in our road; one was the butchers A30 van, and the other was an Atcost Ford Thames Trader builders van. My parents, along with all other people we knew then, did not drive. They could not afford to. However, we know what happened in the 1960's; one big "owner car" boom that more and more people suddenly could afford. In relative terms motoring then was not "cheap", and it never has been, or will be, as it all must be paid for. Then it was for all the new motorways, bypasses and river crossings to cope with the booming road traffic and, even more importantly, the demands of the commercial sector to move freight.
However, harking back to the past is of no use, we know what is today is a fact; heavily congested roads; greatly increasing rail traffic, and even ever increasing air use. The infrastructure to support all this must be improved, expanded, and that will take big money. We the consumers will have to pay one way or another, but again it will be public opinion and political pressure, along with market forces, that will control the amount of revenue raised. The abolishment of the RFL is going to happen, as the current system costs more than a system whereby the revenue is raised on every gallon used in fuel tanks, so that as with any other form of transport you pay for the distance travelled and the infrasture used.
The electric car, at their current prices, has some way to go before it becomes a realistic alternative for more people to own one. The amount of motorists using them will be low for some time, so the number of motorists still using the internal combustion engine to propel them around, in one of the 10's of thousands of those vehicles still being built is going to form the vast majority of road users. That results in what we see currently, in that political and commercial pressure from that group inhibits whatever the government of the day wishes to do in terms of taxing to discourage road use by petrol or diesel vehicles. But, again I stress, we Joe Public will have to accept that we must pay for our travel, but in a fair way. That final point will dictate the colours of future governments, and even our membership of the EU in part or in full.
As for the use of technology to keep track on us; sorry, but that already exists in our everyday lives. Numerous CCTV monitoring on every main road, in towns / cities / villages; ANPR; City Road Charging; computer monitoring of where we shop, what we buy and when; police use of mobile phone GPS systems; linked central computers, along with GCHQ and other intelligence agencies gathering intelligence in ways we will never know - yes we are being tracked already. Road charging is just going to be an extension to all that is in place now.
What we need in all respects of road and vehicle taxing is transparency from the government, and an understanding of where the cash raised from us is being spent, and on what. One thing is for sure, if this country is going to remain a global commercial power house, with a growing industrial sector, trillions of pounds must be spent, and you, I, and future generations will pay for it!