OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

CopleytoSummit Avenue

Green Line

A direct MBTA train from Copley to Summit Avenue took a median 16 minutes across 3,531 observed trips; 90% of measured rides finished within approximately 18 minutes.

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

Typical16 min50th percentile
Slower trip18 min90th percentile
Scheduled17 minmedian timetable
On pace93%within 2 min of schedule

THE SHORT ANSWER

How long does Copley to Summit Avenue take?

The median completed ride from Copley to Summit Avenue was 16 minutes; the published schedule’s median was 17 minutes.

Based on 3,531 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 16 minutes. That was within 1.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 18 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Copley to Summit Avenue times by daypart

Morning rush produced the fastest median for Copley to Summit Avenue; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

15 min 663 trips · 95% on pace

Midday

16 min 892 trips · 95% on pace

Evening rush

16 min 710 trips · 95% on pace

Off-peak

15 min 1,266 trips · 91% on pace

MEASUREMENT SAMPLE

How Copley to Summit Avenue was measured

The Copley to Summit Avenue estimate uses 3,531 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 →