Morning rush
26 min 643 trips · 93% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Park StreettoGriggs Street
Green Line
A direct MBTA train from Park Street to Griggs Street took a median 28 minutes across 3,338 observed trips; 90% of measured rides finished within approximately 33 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical28 min50th percentile
Slower trip33 min90th percentile
Scheduled30 minmedian timetable
On pace87%within 2 min of schedule
THE SHORT ANSWER
How long does Park Street to Griggs Street take?
The median completed ride from Park Street to Griggs Street was 28 minutes; the published schedule’s median was 30 minutes.
Based on 3,338 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 28 minutes. That was within 2 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 33 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Park Street to Griggs Street times by daypart
Morning rush produced the fastest median for Park Street to Griggs Street; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
29 min 903 trips · 83% on paceEvening rush
30 min 611 trips · 81% on paceOff-peak
27 min 1,181 trips · 89% on paceMEASUREMENT SAMPLE
How Park Street to Griggs Street was measured
The Park Street to Griggs Street estimate uses 3,338 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 Park Street
Trips related to Park Street to Griggs Street
The Park Street to Griggs Street record is accompanied by 6 other measured direct rides beginning at Park Street, each with a published median duration.