Morning rush
11 min 667 trips · 99% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Saint Mary's StreettoTappan Street
Green Line
A direct MBTA train from Saint Mary's Street to Tappan Street took a median 12 minutes across 3,724 observed trips; 90% of measured rides finished within approximately 14 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical12 min50th percentile
Slower trip14 min90th percentile
Scheduled13 minmedian timetable
On pace95%within 2 min of schedule
THE SHORT ANSWER
How long does Saint Mary's Street to Tappan Street take?
The median completed ride from Saint Mary's Street to Tappan Street was 12 minutes; the published schedule’s median was 13 minutes.
Based on 3,724 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 12 minutes. That was within 1 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 14 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Saint Mary's Street to Tappan Street times by daypart
Morning rush produced the fastest median for Saint Mary's Street to Tappan Street; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
12 min 941 trips · 98% on paceEvening rush
13 min 682 trips · 98% on paceOff-peak
12 min 1,434 trips · 91% on paceMEASUREMENT SAMPLE
How Saint Mary's Street to Tappan Street was measured
The Saint Mary's Street to Tappan Street estimate uses 3,724 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 Saint Mary's Street
Trips related to Saint Mary's Street to Tappan Street
The Saint Mary's Street to Tappan Street record is accompanied by 6 other measured direct rides beginning at Saint Mary's Street, each with a published median duration.