Morning rush
37 min 631 trips · 88% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Heath StreettoScience Park/West End
Green Line
A direct MBTA train from Heath Street to Science Park/West End took a median 37 minutes across 3,287 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
Typical37 min50th percentile
Slower trip44 min90th percentile
Scheduled39 minmedian timetable
On pace78%within 2 min of schedule
THE SHORT ANSWER
How long does Heath Street to Science Park/West End take?
The median completed ride from Heath Street to Science Park/West End was 37 minutes; the published schedule’s median was 39 minutes.
Based on 3,287 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 37 minutes. That was within 2 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
Heath Street to Science Park/West End times by daypart
Off-peak produced the fastest median for Heath Street to Science Park/West End; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
39 min 797 trips · 77% on paceEvening rush
41 min 635 trips · 60% on paceOff-peak
35 min 1,224 trips · 82% on paceMEASUREMENT SAMPLE
How Heath Street to Science Park/West End was measured
The Heath Street to Science Park/West End estimate uses 3,287 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 Heath Street
Trips related to Heath Street to Science Park/West End
The Heath Street to Science Park/West End record is accompanied by 6 other measured direct rides beginning at Heath Street, each with a published median duration.