Fix The District WIMBLEDON

Why this data matters

TfL used to measure the impact of delays using a metric called Lost Customer Hours — estimating the total time lost by passengers due to disruptions of two minutes or more. However, TfL stopped publishing this data after 2019/20, citing COVID changes to passenger demand. They have never resumed it.

With no official measure of real-world delay impact, this community tracker fills the gap. The "time lost" figures above use a similar principle — multiplying delay duration by the number of affected passengers — to produce evidence we can present to our MP, TfL, and the Department for Transport.

Source: TfL Underground Services Performance