Tolling

Applications
Title	Tolling
Author(s)	Rui Barradas Pereira.
Level	Basic
Year of Publication	2011

It is foreseen that traditional ways of road tolling will be substituted by solutions based on positioning by means of GNSS. On the other hand there's the need of implement urban tolling that is usually called Congestion Charge Zone (CCZ) with the aim to avoid urban pollution and urban traffic congestion. The use of GNSS for Electronic Tolling Collection (ETC) has many advantages with respect to other technologies as it allows for a flexible and scalable system with minimum specific roadside infrastructure. This translates directly into a simple and cost efficient system. In fact, the interoperability directive 2004/52/EC adopted by EU in 2004 prescribed the development and deployment of a European Electronic Tolling Service (EETS), recommending the GNSS technology as the one to be adopted.

Road and urban tolling based on GNSS implies that the position and trajectory of a vehicle is estimated by means of a GNSS system in order to decide if the vehicle must be charged or not and to compute the charging value. This must be done along with the determination of an accuracy level and the acquisition/generation of some kind of irrefutable evidences that can prove the amount of applied charges[4].