Morning rush
14 min 1,220 trips · 93% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
ArlingtontoScience Park/West End
Green Line
A direct MBTA train from Arlington to Science Park/West End took a median 14 minutes across 6,843 observed trips; 90% of measured rides finished within approximately 18 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical14 min50th percentile
Slower trip18 min90th percentile
Scheduled16 minmedian timetable
On pace89%within 2 min of schedule
THE SHORT ANSWER
How long does Arlington to Science Park/West End take?
The median completed ride from Arlington to Science Park/West End was 14 minutes; the published schedule’s median was 16 minutes.
Based on 6,843 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 14 minutes. That was within 2 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 18 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Arlington to Science Park/West End times by daypart
Morning rush produced the fastest median for Arlington to Science Park/West End; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
14 min 1,667 trips · 90% on paceEvening rush
15 min 1,357 trips · 79% on paceOff-peak
14 min 2,599 trips · 91% on paceMEASUREMENT SAMPLE
How Arlington to Science Park/West End was measured
The Arlington to Science Park/West End estimate uses 6,843 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 Science Park/West End
The Arlington to Science Park/West End record is accompanied by 6 other measured direct rides beginning at Arlington, each with a published median duration.