The type of road charging is not up for discussion, should our dear leader decide to ignore the 1.5 million signatories to his petition system, and go ahead with a road charging scheme.
The definition of an electronic road toll has already been spelt out by European Directives, and it would appear that they are more big brother centric that the UK.
The regulations can be found here.
We just need to convince the Government that this is a bad idea. Full stop.