Morning rush
26 min 566 trips · 92% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Park StreettoReservoir
Green Line
A direct MBTA train from Park Street to Reservoir took a median 27 minutes across 3,333 observed trips; 90% of measured rides finished within approximately 31 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical27 min50th percentile
Slower trip31 min90th percentile
Scheduled29 minmedian timetable
On pace88%within 2 min of schedule
THE SHORT ANSWER
How long does Park Street to Reservoir take?
The median completed ride from Park Street to Reservoir was 27 minutes; the published schedule’s median was 29 minutes.
Based on 3,333 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 27 minutes. That was within 2.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 31 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Park Street to Reservoir times by daypart
Morning rush produced the fastest median for Park Street to Reservoir; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
27 min 883 trips · 88% on paceEvening rush
28 min 707 trips · 91% on paceOff-peak
26 min 1,177 trips · 86% on paceMEASUREMENT SAMPLE
How Park Street to Reservoir was measured
The Park Street to Reservoir estimate uses 3,333 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 Park Street
Trips related to Park Street to Reservoir
The Park Street to Reservoir record is accompanied by 6 other measured direct rides beginning at Park Street, each with a published median duration.