There is a cost associated to the construction, maintenance and operation of any road infrastructure. This financial effort is either pay by all taxpayers, by means of taxes, or by the road infrastructure users, by means of tolls.
In a non-tolling system, every citizen, being or not a user of the national road system, pay to provide a service to all its users (national or foreign) interested in traveling for pleasure or business purposes. This payment lies on tax payment grounds: it is universal and compulsory. This enables to cover the construction, maintenance and operation expenditures of the most national network, except for infrastructures with tolls.
When it is argued, who should support the financial effort needed to build and to operate a directly financed road infrastructure, without taxing all citizens, the obvious answer is: it should only be supported by the users who choose a better quality service, in terms of safety, speed, comfort and operation costs.
In these situations, the private financing plays an important role in terms of complementing traditional public financing funds, whenever the development of certain regions requires a quick response to transport demands.
Compared to the normal public financing, the toll transport facilities, release funds to other social priority needs and offer the possibility of an anticipated improvement of national road capacity.