I don't see it as a tax-raising exercise - more a way of putting off doing anything now whilst paying lipservice to the problems we face. Why on earth unveil plans for reducing congestion in 15 years time (or is it 2015?) when by that time, if predictions are correct, gridloack will already have occurred in some areas?
I'm partly for a system which makes people think twice about using their car when an alternative is available. The problem is, it is the short, local journeys which people need to be encouraged not to be making by car.
If I knew it was going to cost me X amount each time I got in the car to drive 1 mile into the town centre, then I'd more likely get on my bike, walk, use a bus (if the service were cheaper and frequent) or at least condense my errands into one journey.
The government have much to do to turn people off their cars and turn them onto alternatives like cycling or buses. Perhaps they ought to unveil plans to build more cycle lanes (continual ones that don't suddenly end!), more places to lock a bike and bus lanes, at the same time as unveiling plans to turn people off driving their cars.
More companies need to be encouraged (by incentives?) to adopt flexible working patterns. When I had the option of flexible hours, I always chose to drive at the quietest time I could find. Everyone would.
Part of me thinks that such a policy might start to make people look for work closer to their homes or homes closer to their work places. I know this isn't feasible for everyone, initially, but it might start to turn around the long-commute culture. On the otherhand, I think the government have done nothing to discourage people having to drive miles from their local community to access amenities of work or leisure by allowing the building of out of town business parks and shopping centres.
It concerns me that this policy is not an environmental policy. There will be no incentives for people to drive smaller, greener cars if fuel duty and tax are done away with. If it is expensive to cross the country via the motorways during daytime hours, more business men/women are going to use domestic flights and families who typically holiday in Cornwall or Scotland may be tempted to fly off abroad if the cost is then comparable or cheaper.