The main status from TfL is shown at the top, explaining any disruption and alternative routes.
Where possible, we estimate how long you’ll wait for the next train, shown in red, amber, or green. This compares to typical wait times and is based on line-wide, not station-specific, data.
A percentage shows how much longer your journey will take, based on real-time data. For example, '20% journey delay' means your trip will take 20% more time than usual; a negative percentage means it will be quicker.
The line chart shows the delay percentage over the last 30 minutes. This can indicate whether service is improving or declining.
Note: Calculations are in beta and only cover Underground lines (excluding W&C). They are not available when the line is part suspended or closed, or between midnight and 6am.