Morning rush
22 min 596 trips · 94% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
ReservoirtoArlington
Green Line
A direct MBTA train from Reservoir to Arlington took a median 23 minutes across 3,245 observed trips; 90% of measured rides finished within approximately 26 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical23 min50th percentile
Slower trip26 min90th percentile
Scheduled24 minmedian timetable
On pace89%within 2 min of schedule
THE SHORT ANSWER
How long does Reservoir to Arlington take?
The median completed ride from Reservoir to Arlington was 23 minutes; the published schedule’s median was 24 minutes.
Based on 3,245 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 23 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 26 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Reservoir to Arlington times by daypart
Off-peak produced the fastest median for Reservoir to Arlington; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
23 min 780 trips · 87% on paceEvening rush
24 min 662 trips · 85% on paceOff-peak
22 min 1,207 trips · 89% on paceMEASUREMENT SAMPLE
How Reservoir to Arlington was measured
The Reservoir to Arlington estimate uses 3,245 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 Reservoir
Trips related to Reservoir to Arlington
The Reservoir to Arlington record is accompanied by 6 other measured direct rides beginning at Reservoir, each with a published median duration.