sentences:  There are some autovías which are built and maintained by private companies, notably the Pamplona-Logroño autovía A-12; the company assumes the building costs and the Autonomous Community where they are located (in the given example, Navarre) pays a yearly per-vehicle fee to the company based upon usage statistics, called "toll in the shadow" (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.Also, since the payment starts only after the road is finished, construction delays are usually shorter than those of regular state-owned dual carriage-ways.