Northern line status

Higher is better; the hairline is the threshold below which a line stops counting as running normally. A dashed stretch along the bottom is a period we have no score for, and it says which kind. No service is the small hours, when the line is not running. No data is us: either nothing reached us, or — more often — we had nothing to compare that stretch against, because a line TfL has declared disrupted for long enough loses those hours from what we count as normal. Neither is a delay, and we would rather show the hole than draw a line across it.

One direction can be in trouble while the other runs perfectly, which is exactly what a single line-wide status hides. Platform indicators name the destination rather than the direction — we will too, once the measurement service publishes where each direction ends.

Sections are scored on their own, so a line can be fine end to end and still have one stretch that is not. Only measured sections appear here.

• Bakerloo line status
• Central line status
• Circle line status
• District line status
• Hammersmith & City line status
• Jubilee line status
• Metropolitan line status
• Piccadilly line status
• Victoria line status
• Waterloo & City line status
• Elizabeth line status
• DLR status