Berlin S-Bahn’s Operational Quality Deemed ‘Unsatisfactory’ Amid Rising Delays and Disruptions
Berlin, June 18 – A recent quality report on the Berlin S-Bahn, presented to the Main Committee, paints a grim picture of its operational status. The report concludes that the operating quality is “unsatisfactory” due to significant increases in delays and train cancellations. In 2025, the S-Bahn was used for nearly half a billion journeys, yet passengers experienced a substantial rise in service interruptions.
The report, which includes data from the first quarter of 2026, reveals 45,914 disruptions were recorded last year, marking a nearly ten percent increase. These disruptions, coupled with numerous construction projects, have presented the Berlin S-Bahn with “complex challenges that are difficult to manage.”
Punctuality Declines, Delays Escalate
Despite efforts from the “S-Bahn Plus” quality initiative, which saw most of its 180 planned measures implemented, new issues continue to emerge. The S-Bahn’s punctuality, defined as trains departing on schedule or within three minutes and 59 seconds of their scheduled time, has worsened. In 2025, the average punctuality rate was 93 percent, down from 93.8 percent in 2024, failing to meet the required 96 percent target.
However, the first quarter of 2026 showed a slight improvement, with March recording the highest monthly punctuality rate since April 2023, reaching 95.4 percent. This positive trend, however, is overshadowed by an overall increase in delay minutes. In 2025, the Berlin S-Bahn accumulated almost 1.5 million delay minutes, a 22.2 percent increase compared to 2024. The first quarter of 2026 saw a further 11.9 percent rise in delay minutes, totaling approximately 361,000.
Significant Increase in Train Cancellations
Train cancellations are an even more pressing concern. Last year, disruptions led to 1.7 million kilometers of uncompleted journeys, a 12.6 percent increase from 2024. In the first quarter of this year, 375,000 kilometers were canceled, up 6.6 percent from the same period last year. The cancellation rate, measured against the agreed-upon performance volume with the federal states, stands at 4.28 percent.
Who is to Blame for the Outages?
An interesting development highlighted in the report is the shifting responsibility for train cancellations. The Berlin S-Bahn is less frequently at fault for these incidents, with its share dropping from almost 41 percent to 27 percent when comparing the first quarters of 2025 and 2026. Vehicle malfunctions, a common cause in the past, decreased by 17 percent last year.
Conversely, the share of the infrastructure operator, DB InfraGO, has increased significantly. Issues with signals and switches have become a primary driver of disruptions, with their contribution rising from 29 percent to 35.6 percent between the first quarters of 2025 and 2026. The number of canceled kilometers due to these issues increased from 43,000 to 46,000. Signal and safety technology disruptions remain a top cause of the problems, with 233,000 train kilometers canceled in 2025 due to these issues, up from 159,000 in 2024. The number of disruptions to LST systems increased by 19 percent to 1,762.
“External influences” now constitute the leading cause of cancellations, increasing from 30 percent to 38.2 percent. In the first quarter of this year, 77,000 S-Bahn kilometers were canceled due to external factors, more than double the 34,000 kilometers recorded in the same period last year. These external influences encompass a wide range of events, including state visits, summer storms, arson attacks, the effects of BVG strikes, and the closure of motorway bridges. Official measures also contribute to this category, with their number rising by 18 percent.
Measures to Reverse the Trend and Political Reactions
The S-Bahn management is implementing various measures to counteract these negative trends, including replacing more signal cables and regularly closing sections of track at night for maintenance. However, the situation has prompted strong reactions from political figures.
Oda Hassepaß, transport policy spokesperson for the Greens in Berlin, commented, “S-Bahn restrictions directly lead to restrictions in the quality of life here in Berlin. To offer people who rely on the S-Bahn reliability again for their commute to work or to visit relatives, quick solutions are needed for the dilapidated signal and interlocking technology. DB InfraGO must be held more accountable here. The stability and punctuality of the S-Bahn are a basic prerequisite for many Berliners to manage their daily lives.”
The ongoing issues underscore the urgent need for comprehensive solutions to restore reliable and punctual S-Bahn services for the millions of commuters and visitors who depend on them daily.
