The Piccadilly line is a deep-level London Underground line that operates from the north to the west of London. Credit: Costain. Transport for London (TfL) has announced the arrival of the first test ...
Leaves on the line! Inside TfL's battle to keep the Piccadilly line running during autumn and winter
• TfL combats this with rail adhesion (“RAT”) trains that spread a sand compound to help Tube trains stick to the track If you’re wondering why your Piccadilly line train has been delayed or cancelled ...
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