Sent_en: 2ms Transport for London's new TrackerNet software is fully opertational on the Circle line, which allows for precise tracking of trains, but is not yet fully installed on the Piccadilly line.
Sent_yy: Perisian baru TrackerNet untuk Pengangkutan di London beroperasi sepenuhnya di laluan Circle, yang membolehkan pengesanan tepat kereta api, tetapi masih belum dipasang sepenuhnya di laluan Piccadilly.