Morning rush
22 min 660 trips · 86% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Chestnut Hill AvenuetoBoston University Central
Green Line
A direct MBTA train from Chestnut Hill Avenue to Boston University Central took a median 21 minutes across 3,329 observed trips; 90% of measured rides finished within approximately 25 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical21 min50th percentile
Slower trip25 min90th percentile
Scheduled23 minmedian timetable
On pace89%within 2 min of schedule
THE SHORT ANSWER
How long does Chestnut Hill Avenue to Boston University Central take?
The median completed ride from Chestnut Hill Avenue to Boston University Central was 21 minutes; the published schedule’s median was 23 minutes.
Based on 3,329 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 21 minutes. That was within 2 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 25 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 Boston University Central times by daypart
Off-peak produced the fastest median for Chestnut Hill Avenue to Boston University Central; Morning rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
22 min 884 trips · 90% on paceEvening rush
22 min 658 trips · 97% on paceOff-peak
20 min 1,127 trips · 85% on paceMEASUREMENT SAMPLE
How Chestnut Hill Avenue to Boston University Central was measured
The Chestnut Hill Avenue to Boston University Central estimate uses 3,329 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 Boston University Central
The Chestnut Hill Avenue to Boston University Central record is accompanied by 6 other measured direct rides beginning at Chestnut Hill Avenue, each with a published median duration.