sentences:  There are some "autovías" which are actually built and maintained by private companies, such as Pamplona-Logroño A-12 or Madrid access road M45.The company assumes the building costs and the Autonomous Community where they are located (in the given examples, Navarre and Madrid) pays a yearly per-vehicle fee to the company based upon usage statistics, called "shadow toll" (in Spanish, "peaje en la sombra").The system can be regarded as a way for the Government to finance the build of new roads at the expense of the building company.