Morning rush
37 min 575 trips · 88% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
ReservoirtoScience Park/West End
Green Line
A direct MBTA train from Reservoir to Science Park/West End took a median 38 minutes across 3,149 observed trips; 90% of measured rides finished within approximately 44 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical38 min50th percentile
Slower trip44 min90th percentile
Scheduled40 minmedian timetable
On pace81%within 2 min of schedule
THE SHORT ANSWER
How long does Reservoir to Science Park/West End take?
The median completed ride from Reservoir to Science Park/West End was 38 minutes; the published schedule’s median was 40 minutes.
Based on 3,149 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 38 minutes. That was within 2.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 44 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Reservoir to Science Park/West End times by daypart
Morning rush produced the fastest median for Reservoir to Science Park/West End; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
38 min 762 trips · 82% on paceEvening rush
40 min 643 trips · 69% on paceOff-peak
37 min 1,169 trips · 83% on paceMEASUREMENT SAMPLE
How Reservoir to Science Park/West End was measured
The Reservoir to Science Park/West End estimate uses 3,149 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 Science Park/West End
The Reservoir to Science Park/West End record is accompanied by 6 other measured direct rides beginning at Reservoir, each with a published median duration.