Charging systems must be technically robust and accurate but experience elsewhere suggests they need not be excessively complex and hence expensive. Put simply, the theoretical needs to move at the same pace as the practical, while recognising circumstances change and systems will evolve. Motorists in France, Italy, Spain, Portugal, Stockholm, Norway, Singapore, Australia, and North America are familiar with the idea that they pay as they use certain roads and this report shows how they receive better service in return.