Morning rush
39 min 637 trips · 83% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Science Park/West EndtoHeath Street
Green Line
A direct MBTA train from Science Park/West End to Heath Street took a median 39 minutes across 2,926 observed trips; 90% of measured rides finished within approximately 45 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical39 min50th percentile
Slower trip45 min90th percentile
Scheduled41 minmedian timetable
On pace81%within 2 min of schedule
THE SHORT ANSWER
How long does Science Park/West End to Heath Street take?
The median completed ride from Science Park/West End to Heath Street was 39 minutes; the published schedule’s median was 41 minutes.
Based on 2,926 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 39 minutes. That was within 2.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 45 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Science Park/West End to Heath Street times by daypart
Off-peak produced the fastest median for Science Park/West End to Heath Street; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
40 min 704 trips · 79% on paceEvening rush
41 min 593 trips · 79% on paceOff-peak
37 min 992 trips · 82% on paceMEASUREMENT SAMPLE
How Science Park/West End to Heath Street was measured
The Science Park/West End to Heath Street estimate uses 2,926 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 Science Park/West End
Trips related to Science Park/West End to Heath Street
The Science Park/West End to Heath Street record is accompanied by 6 other measured direct rides beginning at Science Park/West End, each with a published median duration.