Morning rush
4.8 min 607 trips · 100% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Summit AvenuetoDean Road
Green Line
A direct MBTA train from Summit Avenue to Dean Road took a median 4.8 minutes across 3,559 observed trips; 90% of measured rides finished within approximately 5.8 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical4.8 min50th percentile
Slower trip5.8 min90th percentile
Scheduled7.2 minmedian timetable
On pace100%within 2 min of schedule
THE SHORT ANSWER
How long does Summit Avenue to Dean Road take?
The median completed ride from Summit Avenue to Dean Road was 4.8 minutes; the published schedule’s median was 7.2 minutes.
Based on 3,559 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 4.8 minutes. That was within 2.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 5.8 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Summit Avenue to Dean Road times by daypart
Morning rush produced the fastest median for Summit Avenue to Dean Road; Midday produced the slowest.
Differences can change as the rolling dataset updates.
Midday
5.2 min 898 trips · 100% on paceEvening rush
5.2 min 662 trips · 100% on paceOff-peak
4.8 min 1,392 trips · 100% on paceMEASUREMENT SAMPLE
How Summit Avenue to Dean Road was measured
The Summit Avenue to Dean Road estimate uses 3,559 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 Summit Avenue
Trips related to Summit Avenue to Dean Road
The Summit Avenue to Dean Road record is accompanied by 6 other measured direct rides beginning at Summit Avenue, each with a published median duration.