Morning rush
22 min 588 trips · 93% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
ArlingtontoDean Road
Green Line
A direct MBTA train from Arlington to Dean Road took a median 24 minutes across 3,354 observed trips; 90% of measured rides finished within approximately 28 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical24 min50th percentile
Slower trip28 min90th percentile
Scheduled25 minmedian timetable
On pace89%within 2 min of schedule
THE SHORT ANSWER
How long does Arlington to Dean Road take?
The median completed ride from Arlington to Dean Road was 24 minutes; the published schedule’s median was 25 minutes.
Based on 3,354 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 24 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 28 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Arlington to Dean Road times by daypart
Morning rush produced the fastest median for Arlington to Dean Road; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
24 min 845 trips · 91% on paceEvening rush
25 min 684 trips · 91% on paceOff-peak
23 min 1,237 trips · 85% on paceMEASUREMENT SAMPLE
How Arlington to Dean Road was measured
The Arlington to Dean Road estimate uses 3,354 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 Arlington
Trips related to Arlington to Dean Road
The Arlington to Dean Road record is accompanied by 6 other measured direct rides beginning at Arlington, each with a published median duration.