London Underground

🧬 AI profile — grown from 6ic coverage The London Underground, also known as the Tube, is a major public transportation system serving London, England, with a network of underground lines and stations. It is operated by Transport for London (TfL) and is one of the oldest and largest metro systems in the world. The company's maintenance and operational practices have been at the center of controversy, including the recent allegations of toxic dust exposure affecting its former employees and potentially passengers.