OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Boston University EasttoChestnut Hill Avenue

Green Line

A direct MBTA train from Boston University East to Chestnut Hill Avenue took a median 22 minutes across 3,409 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

Typical22 min50th percentile
Slower trip25 min90th percentile
Scheduled24 minmedian timetable
On pace92%within 2 min of schedule

THE SHORT ANSWER

How long does Boston University East to Chestnut Hill Avenue take?

The median completed ride from Boston University East to Chestnut Hill Avenue was 22 minutes; the published schedule’s median was 24 minutes.

Based on 3,409 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 22 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

Boston University East to Chestnut Hill Avenue times by daypart

Morning rush produced the fastest median for Boston University East to Chestnut Hill Avenue; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

20 min 644 trips · 94% on pace

Midday

22 min 880 trips · 91% on pace

Evening rush

23 min 664 trips · 92% on pace

Off-peak

22 min 1,221 trips · 91% on pace

MEASUREMENT SAMPLE

How Boston University East to Chestnut Hill Avenue was measured

The Boston University East to Chestnut Hill Avenue estimate uses 3,409 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 →