Responses to the Stakeholders

SFERA’s Working group experts have answered to the Stakeholders Feedback from the workshop.
You will find all their answers in the following detailed table:


- PDF - 166.4 kb


Press Article about SFERA

Read the 16 january 2019 Global Railway Review journal online issue about a successful test with a DAS using SFERA protocol:

Feedback from the group about the comments submitted during the workshop will soon be published here.


On 5 November 2018, UIC has hosted at its headquarters in Paris (16, rue Jean Rey) a Stakeholder Workshop dedicated to the new International Railway Solution (IRS) 90940, Communication with Driver Advisory Systems (Project SFERA).

The adoption of Driver Advisory Systems (DAS) throughout Europe is increasing. DAS can improve significantly the energy efficiency of traction: Connected-DAS (C-DAS) in particular – i.e. DAS connected to Traffic Management Systems – can give the most benefits.

SFERA is intended to facilitate the use of C-DAS for international traffic by standardising the data exchange between on-board systems and Traffic Management Systems (TMS). The scope includes both ERTMS/ETCS Limited Supervision and Class B train protection systems. The format is also useful for Standalone DAS (S-DAS) by standardising data interfaces between Infrastructure Managers and Railway Undertakings. It will also be possible to express ATO over ERTMS messages (Subset-126) in SFERA format.

The goal of this Workshop is to collect feedback from all parties involved in DAS development and operations, to deliver a workable IRS which will:

  • Facilitate and promote the roll out of DAS;
  • Improve interoperability of DAS throughout Europe;
  • Ultimately improve the energy efficiency of the whole railway system.

The meeting started at 11:00 and ended at 17:00.

UIC has also organised another Stakeholder Workshop on 6 November 2018, at UIC Headquarters in Paris, regarding the new International Railway Solution (IRS) 90930, replacing UIC Leaflet 930, dealing with Traction Energy Settlement and Data Exchange. You can find the information about that event at the following page:

  • Registration (10:30-11:00)
  • Introduction (11:00-12:00)
    • UIC Standardisation and the IRS System [1]
    • Introduction to the SFERA Project [2]
  • Plenary session (12:00-13:00)
    • Overview of the project: introduction to the Posters [3]
  • Lunch break (13:00-14:00)
  • Interactive session: Posters (14:00-15:30)
    • Overview and Relation to ATO over ETCS [4]
    • Core Use Cases [5]
    • Advanced Use Case: Power Management [6]
    • Advanced Use Case: Degraded Adhesion [7]
    • Message Structure [8]
    • Communication [9]
    • Proof of Concept: Thalys Test [10]
  • Plenary session (15:30-17:00):
    • Feedback – Q&A (15:30-16:30)
    • Wrap-up (16:30-17:00)


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Friday 14 September 2018