Morning rush
39 min 658 trips · 78% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Chestnut Hill AvenuetoPark Street
Green Line
A direct MBTA train from Chestnut Hill Avenue to Park Street took a median 40 minutes across 3,281 observed trips; 90% of measured rides finished within approximately 46 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical40 min50th percentile
Slower trip46 min90th percentile
Scheduled41 minmedian timetable
On pace73%within 2 min of schedule
THE SHORT ANSWER
How long does Chestnut Hill Avenue to Park Street take?
The median completed ride from Chestnut Hill Avenue to Park Street was 40 minutes; the published schedule’s median was 41 minutes.
Based on 3,281 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 40 minutes. That was within 1 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 46 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Chestnut Hill Avenue to Park Street times by daypart
Off-peak produced the fastest median for Chestnut Hill Avenue to Park Street; Evening rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
41 min 869 trips · 74% on paceEvening rush
42 min 656 trips · 70% on paceOff-peak
39 min 1,098 trips · 71% on paceMEASUREMENT SAMPLE
How Chestnut Hill Avenue to Park Street was measured
The Chestnut Hill Avenue to Park Street estimate uses 3,281 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 Chestnut Hill Avenue
Trips related to Chestnut Hill Avenue to Park Street
The Chestnut Hill Avenue to Park Street record is accompanied by 6 other measured direct rides beginning at Chestnut Hill Avenue, each with a published median duration.