OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Science Park/West EndtoEast Somerville

Green Line

A direct MBTA train from Science Park/West End to East Somerville took a median 4.8 minutes across 3,686 observed trips; 90% of measured rides finished within approximately 5.8 minutes.

Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only

Typical4.8 min50th percentile
Slower trip5.8 min90th percentile
Scheduled6.2 minmedian timetable
On pace99%within 2 min of schedule

THE SHORT ANSWER

How long does Science Park/West End to East Somerville take?

The median completed ride from Science Park/West End to East Somerville was 4.8 minutes; the published schedule’s median was 6.2 minutes.

Based on 3,686 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 4.8 minutes. That was within 1.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 5.8 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 East Somerville times by daypart

Evening rush produced the fastest median for Science Park/West End to East Somerville; Morning rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

5.2 min 597 trips · 99% on pace

Midday

4.8 min 938 trips · 98% on pace

Evening rush

4.8 min 683 trips · 99% on pace

Off-peak

4.8 min 1,468 trips · 99% on pace

MEASUREMENT SAMPLE

How Science Park/West End to East Somerville was measured

The Science Park/West End to East Somerville estimate uses 3,686 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 →