Train delay per weekday
Measured · train runs—
Live · connecting
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Plate I. The subway today: live trains in their line colours; hatched and sealed stretches lose the most recorded time.
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Train delay per weekday
Measured · train runs—
Rider time lost per weekday
Estimate ModelledBased on people entering stations, so shown only where gate counts exist. Assumes riders reach the platform at random times: the waiting part is modeled, not recorded.
Late trips
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Train runs 5+ min over scheduled run time. Our measure; the MBTA's Excess Trip Time is per rider and not comparable.
Extra time per run
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Avg. time over (or under) scheduled run time, per run between compared stops.
Long gaps
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Train came more than 1.5× the scheduled headway after the one before.
Gate entries in long gaps
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Average weekday fare-gate entries. Entries, not riders.
Every measure for the dates, day and lines picked below.
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Sixteen sites in official order, each with its nearest T stop. Straight-line distances; walk times are estimates. Not part of any delay figure.
Time-of-day periods load with the charts.