OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

CopleytoSaint Mary's Street

Green Line

A direct MBTA train from Copley to Saint Mary's Street took a median 7.2 minutes across 3,537 observed trips; 90% of measured rides finished within approximately 8.8 minutes.

Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only

Typical7.2 min50th percentile
Slower trip8.8 min90th percentile
Scheduled9.2 minmedian timetable
On pace98%within 2 min of schedule

THE SHORT ANSWER

How long does Copley to Saint Mary's Street take?

The median completed ride from Copley to Saint Mary's Street was 7.2 minutes; the published schedule’s median was 9.2 minutes.

Based on 3,537 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 7.2 minutes. That was within 2 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 8.8 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Copley to Saint Mary's Street times by daypart

Evening rush produced the fastest median for Copley to Saint Mary's Street; Off-peak produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

7.2 min 665 trips · 98% on pace

Midday

7.2 min 892 trips · 98% on pace

Evening rush

7.2 min 713 trips · 98% on pace

Off-peak

7.2 min 1,267 trips · 99% on pace

MEASUREMENT SAMPLE

How Copley to Saint Mary's Street was measured

The Copley to Saint Mary's Street estimate uses 3,537 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 →