Morning rush
20 min 643 trips · 98% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
CopleytoGriggs Street
Green Line
A direct MBTA train from Copley to Griggs Street took a median 21 minutes across 3,350 observed trips; 90% of measured rides finished within approximately 25 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical21 min50th percentile
Slower trip25 min90th percentile
Scheduled24 minmedian timetable
On pace92%within 2 min of schedule
THE SHORT ANSWER
How long does Copley to Griggs Street take?
The median completed ride from Copley to Griggs Street was 21 minutes; the published schedule’s median was 24 minutes.
Based on 3,350 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 21 minutes. That was within 3 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 25 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Copley to Griggs Street times by daypart
Morning rush produced the fastest median for Copley to Griggs Street; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
22 min 908 trips · 92% on paceEvening rush
23 min 607 trips · 84% on paceOff-peak
21 min 1,192 trips · 92% on paceMEASUREMENT SAMPLE
How Copley to Griggs Street was measured
The Copley to Griggs Street estimate uses 3,350 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 Copley
Trips related to Copley to Griggs Street
The Copley to Griggs Street record is accompanied by 6 other measured direct rides beginning at Copley, each with a published median duration.