GRAIL: GNSS introduction in the rail sector

Updated: Aug 13, 2016

Project details

Acronym: 
GRAIL
Classification: 
USER COMMUNITY
USER SEGMENT
Total Cost: 
6 627 191 €
EU Contributions: 
3 685 000 €
Contract Number: 
GJU/05/2409/CTR/GRAIL
Project Call: 
FP6 2nd Call
Start Date: 
31/08/2005
End Date: 
29/02/2008
Duration: 
30
Project Type: 
APPLICATION

Contact

Coordinator: 
Mr Alvaro Urech
INECO
Av. Partenon 4, 4th floor
28042 Madrid ES
Spain
Tel: 
+34 (0)91 452 5770
Fax: 
+34 (0)91 452 1306
Scientific Officer: 
Stefano Scarda
Background: 

During the last few years, several projects funded both by ESA and the EC have been studying and demonstrating the use of GNSS for safety-related applications in railways, especially the ERTMS/ETCS application. In the framework of the GADEROS project a workshop was organised by the GJU to bring together representatives from these projects (GADEROS, INTEGRAIL, RUNE and LOCOLOC/LOCOPROL) with the EC, ESA, ERTMS users group and the GJU. During the review of the findings of those projects, it was detected that although they do not follow the same approach the conclusions reached were similar. These projects have proved the feasibility of introducing GNSS in railways and in particular ETCS by means of theoretical studies and demonstrations: - Safety analysis on these concepts has already been performed (however, not yet as formal safety cases) and the results are positive;. - Some system prototypes have already been developed by the industry; - Both railway signalling and GNSS industry have provided good co-operation towards a common interest. Several different functional and technical concepts have been presented by these projects but they can be mainly summarised as follows: 1. GNSS system as odometry: GNSS-based location is used as a substitute or complement of the current odometry sensors (tachometers, INS, Doppler radar, etc.). Thus it can remain internal to the ETCS. 2. GNSS for the fixed balise marker: The GNSS system is used to provide the ETCS onboard system with a message equivalent to that provided to a fixed balise in the track for a position marker.

Objectives: 

This project proposes a strategy, consistent with the current deployment process of ERTMS/ETCS in Europe, to provide a smooth integration of GNSS into control and command applications, particularly in ERTMS/ETCS. The GRAIL project will be based on three main objectives: 1. To specify, develop and test a GNSS prototype system for enhanced odometry, ready to be integrated in ETCS onboard systems; 2. To pave the way for the future introduction of more ambitious approaches at different levels of ERTMS/ETCS architecture; 3. To complete the perspective of safety-related applications with the study and demonstration of non-safety applications and the study of economical and legal issues.

Partners: 
AT
  • SIEMENS
BE
  • Alstom
DE
  • Bombardier Transport
  • DLR
  • Thales
ES
  • ADIF
  • CEDEX
  • DEIMOS Space
  • Indra Espacio
  • Invensys-Dimetronic
  • TIFSA
FR
  • ESSP
  • Thales Alenia Space
GB
  • ESYS
  • RSSB
IT
  • ANSALDO STS
NL
  • IIASL