Morning rush
22 min 679 trips · 88% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Griggs StreettoCopley
Green Line
A direct MBTA train from Griggs Street to Copley took a median 23 minutes across 3,372 observed trips; 90% of measured rides finished within approximately 27 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical23 min50th percentile
Slower trip27 min90th percentile
Scheduled24 minmedian timetable
On pace81%within 2 min of schedule
THE SHORT ANSWER
How long does Griggs Street to Copley take?
The median completed ride from Griggs Street to Copley was 23 minutes; the published schedule’s median was 24 minutes.
Based on 3,372 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 23 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 27 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Griggs Street to Copley times by daypart
Morning rush produced the fastest median for Griggs Street to Copley; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
23 min 865 trips · 84% on paceEvening rush
24 min 666 trips · 77% on paceOff-peak
22 min 1,162 trips · 77% on paceMEASUREMENT SAMPLE
How Griggs Street to Copley was measured
The Griggs Street to Copley estimate uses 3,372 completed direct-trip stop-timestamp pairs matched to the schedule active for each observed train.
We publish the median because one dramatic delay should not define an everyday journey, and the 90th percentile because riders still need to understand the bad end of normal.
We do not infer why a trip ran slowly. Construction, incidents, crowding and weather require separate evidence.
Read the complete method →MORE FROM Griggs Street
Trips related to Griggs Street to Copley
The Griggs Street to Copley record is accompanied by 6 other measured direct rides beginning at Griggs Street, each with a published median duration.