OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

CopleytoChestnut Hill

Green Line

A direct MBTA train from Copley to Chestnut Hill took a median 23 minutes across 3,315 observed trips; 90% of measured rides finished within approximately 26 minutes.

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

Typical23 min50th percentile
Slower trip26 min90th percentile
Scheduled24 minmedian timetable
On pace89%within 2 min of schedule

THE SHORT ANSWER

How long does Copley to Chestnut Hill take?

The median completed ride from Copley to Chestnut Hill was 23 minutes; the published schedule’s median was 24 minutes.

Based on 3,315 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 23 minutes. That was within 1.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 26 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Copley to Chestnut Hill times by daypart

Morning rush produced the fastest median for Copley to Chestnut Hill; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

22 min 551 trips · 91% on pace

Midday

23 min 878 trips · 89% on pace

Evening rush

24 min 708 trips · 92% on pace

Off-peak

22 min 1,178 trips · 87% on pace

MEASUREMENT SAMPLE

How Copley to Chestnut Hill was measured

The Copley to Chestnut Hill estimate uses 3,315 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 →