DelayometerLondon rail, measured

Live measured status

Circle line status

GoodTfL: Minor Delays

Running normally

TfL’s reason: Circle Line: Minor delays due to train cancellations.

Score95out of 100
Added to a journey0send to end, versus normal
Waiting longer by0sper train, on average
Running slower byper section, on average
Sections scored10of 72 on the line
Confidencemediumfrom waiting times only

Live — last reading . Shares track with the District, Hammersmith & City and Metropolitan lines for much of its route.

The last 24 hours

Sat 19 Sept 00:30:00 → 00:20:00

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

Sat 12 Sept → Sat 19 Sept

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

Across this window, for 26 hours TfL declared a good service while we were measuring a real delay; and for 10 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

100

Good

Running normally

Away from central London

91

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

South KensingtonGloucester Road8
AldgateLiverpool Street97
Mansion HouseCannon Street100
Cannon StreetMonument100
MonumentTower Hill100
Tower HillAldgate100

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 →