"We'll see how it is to ride the first tram tunnel in the capital"

Warsaw's first tram tunnel is being tested, featuring a supercapacitor for energy storage. The 1.6-kilometer route connects Grójecka with the West Railway Station, including an underground tram stop. Construction began in June 2024 and is nearing completion, with passenger service expected soon, though exact dates remain uncertain due to potential adjustments required by safety officials.