OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

East SomervilletoPark Street

Green Line

A direct MBTA train from East Somerville to Park Street took a median 16 minutes across 3,594 observed trips; 90% of measured rides finished within approximately 20 minutes.

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

Typical16 min50th percentile
Slower trip20 min90th percentile
Scheduled17 minmedian timetable
On pace82%within 2 min of schedule

THE SHORT ANSWER

How long does East Somerville to Park Street take?

The median completed ride from East Somerville to Park Street was 16 minutes; the published schedule’s median was 17 minutes.

Based on 3,594 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 16 minutes. That was within 1 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 20 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

East Somerville to Park Street times by daypart

Off-peak produced the fastest median for East Somerville to Park Street; Morning rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

17 min 733 trips · 85% on pace

Midday

16 min 902 trips · 81% on pace

Evening rush

17 min 730 trips · 76% on pace

Off-peak

15 min 1,229 trips · 84% on pace

MEASUREMENT SAMPLE

How East Somerville to Park Street was measured

The East Somerville to Park Street estimate uses 3,594 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 →