Morning rush
28 min 683 trips · 86% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Griggs StreettoPark Street
Green Line
A direct MBTA train from Griggs Street to Park Street took a median 30 minutes across 3,377 observed trips; 90% of measured rides finished within approximately 35 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical30 min50th percentile
Slower trip35 min90th percentile
Scheduled31 minmedian timetable
On pace76%within 2 min of schedule
THE SHORT ANSWER
How long does Griggs Street to Park Street take?
The median completed ride from Griggs Street to Park Street was 30 minutes; the published schedule’s median was 31 minutes.
Based on 3,377 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 30 minutes. That was within 1.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 35 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Griggs Street to Park Street times by daypart
Morning rush produced the fastest median for Griggs Street to Park Street; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
30 min 869 trips · 80% on paceEvening rush
32 min 666 trips · 67% on paceOff-peak
29 min 1,159 trips · 74% on paceMEASUREMENT SAMPLE
How Griggs Street to Park Street was measured
The Griggs Street to Park Street estimate uses 3,377 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 Griggs Street
Trips related to Griggs Street to Park Street
The Griggs Street to Park Street record is accompanied by 6 other measured direct rides beginning at Griggs Street, each with a published median duration.