The move comes in the wake of the death of an eight year old boy, who died after being pushed off a platform and into the path of an ICE train at Frankfurt main station on July 29. The boy’s mother was also pushed off the platform but was able to avoid being hit by the train.

MVG said one method of preventing similar tragedies was using the platform screen doors, and a feasibility study carried out on behalf of MVG and Munich City Works (SMG) found the doors could be retrofitted into the existing platforms, although the work is expected to cost hundreds of millions of euros.

Under the pilot project, which is expected to go live in 2023, MVG will install the screen doors on one of four platforms at Olympiazentrum U-Bahn station, where it will be tested in normal operations.

The planned north-south U9, which will run from Nordfriedhof on Line U6 south via Münchner Freiheit and Pinakothekenviertel to link up with a branch running south from Theresienwiese on Line U2, will be built with CBTC and platform screen doors.