Overview
- The transit operator canceled Monday’s planned premiere ride and start of passenger service for the 50‑metre Urbanliner on the M4, and no new launch date was given.
- Officials said final certification requires additional joint reviews and recalculations with the supervisory authority, adding that resolving the open items is now the focus.
- Five Urbanliners have been delivered to BVG, with three slated for the initial rollout, as part of an Alstom program of up to 117 trams that will replace aging 1990s vehicles.
- Internal and approval documents reported by nd‑aktuell indicate temporary operating limits such as forward running only from cab A in passenger service and required door checks after certain automatic brakes, with some troubleshooting guides still in paper form on board.
- Experts have flagged the trams’ roughly 100‑ton full weight as a potential issue for some bridges on the M4, with reporting of a localized speed restriction, even as the 50.89‑metre vehicles promise capacity for up to 312 passengers on a heavily used route.