Sent_en: 2zh 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: 伦敦交通局新推出的TrackerNet软件在伦敦环线上完全可以运行，该软件可以对列车进行精确跟踪，但皮卡迪利线上尚未完全安装。