OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Chestnut Hill AvenuetoBabcock Street

Green Line

A direct MBTA train from Chestnut Hill Avenue to Babcock Street took a median 16 minutes across 3,338 observed trips; 90% of measured rides finished within approximately 19 minutes.

Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only

Typical16 min50th percentile
Slower trip19 min90th percentile
Scheduled16 minmedian timetable
On pace81%within 2 min of schedule

THE SHORT ANSWER

How long does Chestnut Hill Avenue to Babcock Street take?

The median completed ride from Chestnut Hill Avenue to Babcock Street was 16 minutes; the published schedule’s median was 16 minutes.

Based on 3,338 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 16 minutes. That was within 0 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 19 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 Babcock Street times by daypart

Off-peak produced the fastest median for Chestnut Hill Avenue to Babcock Street; Midday produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

16 min 661 trips · 75% on pace

Midday

17 min 888 trips · 78% on pace

Evening rush

16 min 659 trips · 93% on pace

Off-peak

16 min 1,130 trips · 81% on pace

MEASUREMENT SAMPLE

How Chestnut Hill Avenue to Babcock Street was measured

The Chestnut Hill Avenue to Babcock 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 →