DelayometerLondon rail, measured

Live measured status

Northern line status

GoodTfL: Good Service

Running normally

Score87out of 100
Added to a journey9send to end, versus normal
Waiting longer by0sper train, on average
Running slower by1sper section, on average
Sections scored105of 106 on the line
Confidencehighfrom waiting times and train speeds

Live — last reading . Bank and Charing Cross are measured as the separate routes they are.

The last 24 hours

Sun 11 Oct 09:20:00 → 09:10:00

no service

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.

Declared against measured

Mon 5 Oct → Mon 12 Oct

  • Good
  • Minor delay
  • Delayed
  • Severe delay
  • Nothing measured, or nothing running

Across this window, for 3 hours TfL declared a good service while we were measuring a real delay; and for 11 hours TfL was reporting disruption that our measurements did not pick up, which is the direction we are likelier to be wrong in. Our band changes only once a condition has held for fifteen minutes, so this is a picture of sustained running rather than every flicker — the chart above is where a short sharp incident still shows. Every other page here asks you to take our word for it; this one is the argument with the evidence attached.

By direction

Towards central London

90

Good

Running normally

Away from central London

84

Minor delay

Delays on part of the line

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.

Slowest sections right now

Worst first

Battersea Power → Nine Elms27
Edgware → Burnt Oak35
Colindale → Hendon Central42
High Barnet → Totteridge & Whetstone46
Morden → South Wimbledon49
Burnt Oak → Colindale50

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.

Every other line

How this is measured →