GNSS BASED ELECTRONIC TOLL COLLECTION SYSTEM OF GUARANTEED PERFORMANCES.

During 2005 the first GPS based ETC system in the world, the German Toll Collect, started-up operations. GNSS appears as the most flexible and costefficient technology to implement large-scale ETC systems. However, due to the nature of GNSS position errors, GNSS-based ETC still has some constraints to be overcome. In the Toll Collect system, additional sensors and side infrastructure are used resulting in a complex and costly system. Thispaper presents an innovative ETC system based on the use of a GNSS integrity service, as Galileo, combined with algorithms that ensure position integrity to efficiently overcome such problems. For the covering abstract see ITRD E134653.