Tube Delays: Piccadilly Line

Tube escalatorSignal problems are the biggest cause of disruption on the Piccadilly line.

Staff issues, including industrial action and problems with the train fleet are the other significant issues.

Delays are measured by what TfL call Lost Customer Hours (LCH). These are calculated by multiplying the delays in minutes by the number of passengers. TfL records all delays over 2 minutes. It uses the financial year from April to March and splits the year in 13 equal periods for performance measurement.


Data in the London Underground Performance Almanac for the last full year shows there was an average of 205,014 Lost Customer Hours per period on the Piccadilly Line.

LCH Piccadilly

The Piccadilly ranks in 4th place for the worst record on the network, but it has improved considerably in the past 10 years. It has reduced Lost Customer Hours by 69% in the pas 3 years compared to 2003/06.

Source data

See also

Central Line leads the lost hours league table of your Tube delays

Strikes are a commuting disaster, but what delays your daily Tube journey?

Passenger data reveals busiest stations where Tube strike will hit hardest