GRK to design and build Finland’s first relay interlocking interfaces for railway CTC (centralized traffic control) in compliance with the EULYNX standard

On 18 January 2022, GRK Rail Oy entered into an agreement with the Finnish Transport Infrastructure Agency on a sub-project for the renewal of the Northern Finland’s railway CTC. The value of the POKA relay interlocking interface project, which is implemented using the design and build model, is EUR 5.8 million, including options.

In this sub-project, GRK Rail will design and build the interfaces for the relay interlockings required for the CTC system to be renewed. The project uses the EULYNX SCI-CC (Standard Communication Interface – Control Centre) interface, which is being applied for the first time in Finland. The delivery includes the development and deployment of software related to the interface. The interfaces of the relay interlockings’ CTC system will be renewed in multiple phases to a total of 53 relay interlockings during 2022–2024.

“It is great to be involved in renewing the Northern Finland’s CTC system, which is at the end of its life cycle. The common objective of everyone operating in the railway business is to improve the safety and operational reliability of the railway system. The use of new interface solutions will also enable more extensive use of digitalization in railway traffic in the future,” says Tero Palosaari, Director at GRK Rail Oy.

The project for the renewal of the Northern Finland’s railway CTC system (POKA project) is being implemented in cooperation between the Finnish Transport Infrastructure Agency and Fintraffic Raide Ltd. Fintraffic is responsible for the construction of the CTC system and the Finnish Transport Infrastructure Agency for connecting the CTC system to the railway infrastructure. The new POKA system is to be designed, built, and put into production in multiple stages, so that the entire project will be completed by 2025.

For more information, please contact
Tero Palosaari, Director, GRK Rail Oy, +358 40 658 5077,
Juha Toimela, CEO, GRK Infra Oy, +358 40 594 5473,