A New Perspective for GNSS Based Safe Train Position

Autor: Salvatore Sabina, Nazelie Kassabian, Fabio Poli
Rok vydání: 2018
Předmět:
Zdroj: GNSS for Rail Transportation ISBN: 9783319790831
Popis: This chapter describes the virtual balise concept and summarizes the benefits associated with its use in the evolution of the ERTMS system. A possible-enhanced ERTMS functional architecture suitable for implementing the virtual balise concept is also presented along with the detailed description of the main new functional blocks. This chapter also introduces the proposed extensions of the key ERTMS concepts for estimating the train position based on virtual balises, and consequently, an innovative railway integrity concept is described based on the peculiarities of the railway operational rules and the signalling principles for guaranteeing safe train movements. Finally, a preliminary apportionment of the ETCS Core Hazard tolerable hazard rate based on the use of not only physical balises but also virtual balises is presented.
Databáze: OpenAIRE