EULYNX was started in 2014 by the railway infrastructure managers of 6 European countries: Germany, Netherlands, Belgium, France, Luxembourg and Great Britain.
[1] This has expanded with time to 15 members by including the railway infrastructure managers from: Finland, Norway, Sweden, Slovenia, Switzerland, Italy, Austria, Czech Republic and Croatia.
EULYNX stems from the shorter lifetime of new signalling equipment technology, especially of interlockings which are at the core of the railway safety system.
[3] The high cost of railway signalling equipment and the fact that until recently, suppliers operated mostly within national borders, resulted in a significant amount of technological diversity, and elements installed over many decades.
EULYNX aims to reinforce the process of defining and standardising interfaces in the future railway digital control command communication, signalling and automation system.
[6] The major goal is to increase the railway capacity and reliability with a significant reduction in the life-cycle cost of the system.
EULYNX specifications are integral to Bane NOR’s broader ERTMS expansion programme, which includes equipping rolling stock and updating the entire network with the ETCS Level 2 signalling system.
The tender, split into two lots, includes electronic interlockings, object controllers based on EULYNX BL4 R1 or higher, and a maintenance data management system (MDM).
A one-year dialogue phase with selected industry partners was started, with the final specifications expected to be released in November 2024.
EULYNX uses the semi-formal modelling language SysML which represents a step towards the application of formal methods in railway infrastructure.