Morning rush
14 min 603 trips · 88% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Dean RoadtoSaint Mary's Street
Green Line
A direct MBTA train from Dean Road to Saint Mary's Street took a median 14 minutes across 2,910 observed trips; 90% of measured rides finished within approximately 17 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical14 min50th percentile
Slower trip17 min90th percentile
Scheduled14 minmedian timetable
On pace86%within 2 min of schedule
THE SHORT ANSWER
How long does Dean Road to Saint Mary's Street take?
The median completed ride from Dean Road to Saint Mary's Street was 14 minutes; the published schedule’s median was 14 minutes.
Based on 2,910 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 14 minutes. That was within 0 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 17 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Dean Road to Saint Mary's Street times by daypart
Off-peak produced the fastest median for Dean Road to Saint Mary's Street; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
14 min 786 trips · 88% on paceEvening rush
15 min 604 trips · 91% on paceOff-peak
13 min 917 trips · 80% on paceMEASUREMENT SAMPLE
How Dean Road to Saint Mary's Street was measured
The Dean Road to Saint Mary's Street estimate uses 2,910 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 Dean Road
Trips related to Dean Road to Saint Mary's Street
The Dean Road to Saint Mary's Street record is accompanied by 6 other measured direct rides beginning at Dean Road, each with a published median duration.