First trial operation: Subway connections communicating in real-time

The Hamburg Hochbahn is embarking on a significant transformation with the "U-Bahn 100" project, a lighthouse initiative presented at the UITP Summit 2025. This project, scheduled for completion by the end of this decade, aims to revolutionise the city's underground network.

At the helm of this project is Jens-Günter Lang, the Chief Technology Officer (Technical Director) of Hamburg Hochbahn. Lang is overseeing the implementation of a new train control system, Communication-Based Train Control (CBTC), which will enable automated, dynamic train spacing to increase capacity and reduce waiting times on the U2 and U4 lines.

The CBTC system, also known as Moving Block, is a cutting-edge technology that allows trains to continuously communicate their exact position and speed to the central control system. This will enable the system to control the rhythm of the trains dynamically, ensuring smoother and more efficient operations.

The successful test run of the CBTC system is expected to increase passenger capacity by up to 50% and reduce the current tightest interval of 150 seconds by almost a minute.

As part of the "U-Bahn 100" project, the DT5 vehicles will be upgraded, with older models being replaced by modern DT6 vehicles. Trains will still be staffed during the introduction of the new CBTC system to coordinate boarding and alighting.

The implementation of the project requires upgrading the track network, including signal boxes, which began in September 2024 and is expected to continue until 2030.

By automating the existing network, passengers can look forward to more space and comfort, as well as shorter waiting times at the platform. The "U-Bahn 100" project is set to redefine urban mobility in Hamburg, offering a more efficient and enjoyable commuting experience for all.