TfL Rail is a train service operated by Transport for London that connects central London with the surrounding areas. It primarily serves the route between Liverpool Street and Shenfield, providing a vital link for commuters and travelers. The service is integrated with the London Underground and other London Overground services, making it easier for passengers to transfer between different modes of transport. In 2021, TfL Rail was rebranded as Elizabeth Line, named after Queen Elizabeth II. This new line enhances connectivity across London and beyond, extending to Reading and Heathrow Airport. The service features modern trains and improved facilities, aiming to provide a more efficient travel experience.