Morning rush
22 min 572 trips · 89% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
ArlingtontoReservoir
Green Line
A direct MBTA train from Arlington to Reservoir took a median 23 minutes across 3,366 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
Scheduled23 minmedian timetable
On pace83%within 2 min of schedule
THE SHORT ANSWER
How long does Arlington to Reservoir take?
The median completed ride from Arlington to Reservoir was 23 minutes; the published schedule’s median was 23 minutes.
Based on 3,366 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 23 minutes. That was within 0.5 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
Arlington to Reservoir times by daypart
Morning rush produced the fastest median for Arlington to Reservoir; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
22 min 882 trips · 80% on paceEvening rush
24 min 721 trips · 85% on paceOff-peak
22 min 1,191 trips · 82% on paceMEASUREMENT SAMPLE
How Arlington to Reservoir was measured
The Arlington to Reservoir estimate uses 3,366 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 Reservoir
The Arlington to Reservoir record is accompanied by 6 other measured direct rides beginning at Arlington, each with a published median duration.