UIC IRS 90940 - SFERA Launch Webinar introducing IRS 90940 and the SFERA protocol

Update 7th of July 2020:

IRS 90940 addresses the standardisation of data exchange flows with Driver Advisory Systems (DAS) by proposing the new SFERA protocol. This protocol has been designed to allow operators to work seamlessly across borders and speed up the implementation of advice to driver connected to real-time traffic management (Connected DAS or C-DAS) while remaining compatible with ATO over ETCS and other train protection systems.


Dear Railway community,

UIC invited you to connect to our webinar for the presentation of the new IRS 90940 - Data Exchanges with Driver Advisory Systems following the SFERA protocol.
The UIC SFERA Working Group / DAS experts were happy to introduce you to the concept between 10:00 and 11:00.

This was a short overview presentation to announce the upcoming IRS and launch its maintenance.
Please find the supporting documents:



- PDF - 1.5 Mb

See the document

Written and oral questions and answers transcript:


- PDF - 228.5 kb

See the document

Also, you will find the recording here:

Note: There will be an in-person launch event scheduled for 12 October 2020. Please save the date; additional details will be provided later on.

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