Breaking the 200 km/h Barrier: The Evolution of the CMK
Poland is currently pushing the boundaries of its rail infrastructure, moving beyond the long-standing 200 km/h speed limit. The focus is on the Centralna Magistrala Kolejowa (CMK), the critical corridor connecting Warsaw with Katowice and Krakow.
PKP Intercity has initiated extensive operational tests using the ED250 Pendolino units to reach speeds of 250 km/h. These trials, specifically conducted on the section between Grodzisk Mazowiecki and Zawiercie, are not just about speed—they are about safety and sustainability.
The primary goal of these intensive runs is to evaluate the dynamic loads on engineering objects. By testing how bridges and other infrastructure react to maximum speeds, engineers can ensure the line is fit for regular high-speed passenger traffic.
The Digital Backbone: GSM-R and ETCS Level 2
Increasing speed requires more than just powerful engines; it requires a sophisticated digital nervous system. To safely operate at 250 km/h, the infrastructure must undergo a digital transformation.
Key to this transition is the implementation of the GSM-R system and the deployment of ETCS (European Train Control System) Level 2. These systems allow for better communication between trains and traffic control, reducing the reliance on traditional trackside signals and allowing for tighter, faster intervals between trains.
Current efforts include the finalization of GSM-R construction, with testing phases scheduled to ramp up to ensure the corridor is fully prepared for the next generation of speed standards.
The Leap to True High-Speed Rail (350 km/h)
Even as 250 km/h represents a significant upgrade for existing lines, Poland is already looking toward the future of “true” high-speed rail. Plans are in motion for the construction of dedicated high-speed lines where trains will reach 350 km/h.
This leap will require entirely new rolling stock, as the current Pendolino fleet is optimized for different parameters. The transition to 350 km/h would drastically reshape travel times across Central Europe, potentially bringing journeys between major cities like Katowice and Warsaw to under two hours.
Balancing Velocity with Capacity
The future of the network isn’t just about the fastest trains, but about the right train for the right route. PKP Intercity is diversifying its fleet to balance extreme speed with high passenger capacity.
While the Pendolino handles the high-speed corridors, the operator has ordered 42 double-decker Alstom Coradia Max units. These are designed for a maximum speed of 200 km/h, focusing on moving larger volumes of passengers efficiently on original routes where 250 km/h is not feasible or required.
This dual-track strategy—investing in both the ED250 high-speed capabilities and high-capacity Coradia Max units—ensures a versatile network that can handle both business express travel and mass transit.
Frequently Asked Questions
When will trains regularly run at 250 km/h in Poland?
The plan is for ED250 Pendolino trains to begin regular service at 250 km/h starting with the 2027/2028 timetable.
Where are the 250 km/h tests taking place?
Tests are being conducted on the Centralna Magistrala Kolejowa (CMK), specifically on the section between Grodzisk Mazowiecki and Zawiercie.
What is the difference between the Pendolino and the Coradia Max?
The Pendolino (ED250) is a high-speed unit capable of 250 km/h (and higher in tests), while the Alstom Coradia Max is a double-decker unit designed for high capacity with a maximum speed of 200 km/h.
What infrastructure is needed for these higher speeds?
The rollout requires the completion of the GSM-R communication system and the implementation of ETCS Level 2 for advanced train control.
What do you reckon about the shift toward 250 km/h and 350 km/h rail in Central Europe? Will this change your travel habits? Let us know in the comments below or subscribe to our newsletter for more industry insights!
