Overview

• July tests on a two-kilometer track between Berne and Oldenfelde confirmed CBTC moving-blocks can safely maintain 100-second headways
• Forty DT5 trains have completed retrofits with CBTC hardware and software and about 120 more will follow while future DT6 units arrive factory-equipped
• The first revenue service launch is scheduled for Q4 2026 on the U4 Jungfernstieg–Elbbrücken section as part of the phased modernization
• Hochbahn expects the new system to raise U2 and U4 daily capacity by up to 50 percent by 2029 and will keep onboard drivers to start trips and monitor operations
• The project leverages retrofit precedents in Copenhagen and London to shift one of Germany’s oldest metros from fixed-block to dynamic train control