Czechia sees widespread train delays due to security system failure

A security system failure in Czechia caused significant disruptions to train services across key rail corridors on Saturday morning, including both regional and long-distance routes. The issue has been resolved as of 11:00 a.m., though travel on affected routes may see delays throughout the day.

The issue stemmed from a malfunction in the European Train Control System (ETCS), which is designed to ensure the safety of trains through automatic intervention in case of operator error. The system went offline early on Saturday morning, resulting in widespread delays and the suspension of some services.

By 11:00 a.m., services began to return to normal, with the Czech Railways reporting that operations had been gradually stabilizing. However, delays may persist throughout the day, and passengers are urged to check real-time updates on the company’s website or app.

The root of the issue was identified as a malfunction in the GSM-R signal, a key component of the ETCS system, which is managed by an external provider. The system, which was fully implemented on several key rail corridors earlier this year, allows for automatic intervention to prevent accidents caused by human error or other operational issues.

In this case, the lack of a functional GSM-R signal led to a temporary shutdown of train services on affected routes for safety reasons.

"That is the main cause of the current delays. The system has gradually been switched back to the original security system that was in place before Jan. 1 of this year," Martin Kavka, a spokesperson for the railway fire brigade, told Czech News Agency.

Passengers experienced delays on major lines such as Prague's Main Train Station to Česká Třebová and Brno's Main Train Station to Šakvice. Trains were required to operate at a reduced speed of 100 km/h as a precautionary measure until the system could be restored.

"Trains are now starting to run again, while the external GSM-R signal provider is working intensively on the repair," Kavka added. "Train delays should be minimal by this afternoon."

As the GSM-R signal was being repaired, services on affected corridors began transitioning back to the previous security system, which had been in use before the nationwide ETCS upgrade in January 2025. With the restoration of the ETCS system, delays should start to decrease, with only minimal disruptions expected by the afternoon.

The ETCS is a major part of the Czech government’s strategy to modernize the railway system, with plans to extend its use to 4,000 kilometers of track by 2030.

The system is designed to increase safety by automatically stopping trains in the event of operator errors or other critical issues. Once fully implemented, it will enhance safety and efficiency across the country’s rail network.