Where do we go if we have a breakdown? God forbid the EMERGENGY SERVICES not getting through."
The idea is for this scheme to be used during peak hours, laybys every 500 yards would be constructed for vehicle breakdowns during those periods that the hard shoulder is in use for traffic. Apparently the experiment on the M42 was very succesfull.
Tax on petrol does not depend on the volume of traffic using a given road, which road charging would. Road charging would just be a more sophisticated form of road toll, which is used in a few places in UK and more generally in France, for example.
Fair point, however at the moment the emergency services can get to the scene in a very quick time. With the squeezing together of vehicles (when the occupants have worked out where the siren is coming from), surely this will slow the response rate of the emergency services.
Also when roadworks are being done on the motorway network, the hard shoulder IS used as a lane in numerous situations I have seen.