Research carried out by the RAC Foundation has found that just a quarter of the money that is taken in motoring taxes by the UK government is actually spent on the maintenance of our roads. The figures taken from the 2012 report show that out of the £24.8 billion taken in fuel duty and £5.9 billion taken in vehicle excise duty, just £7.5 billion was spent on out national and local road networks. The funds received from our driving related taxes are not ring-fenced specifically for road maintenance and can be used for all manner of things from our police forces to healthcare, but the margins do seem to be increasing. Over the prior five year period just 28% off the taxes gained through duties was used for related road maintenance like repairing the numerous potholes that are sure to appear again this winter….
You can find more details here at racfoundation.org