OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

BoylstontoCoolidge Corner

Green Line

A direct MBTA train from Boylston to Coolidge Corner took a median 18 minutes across 3,529 observed trips; 90% of measured rides finished within approximately 21 minutes.

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

Typical18 min50th percentile
Slower trip21 min90th percentile
Scheduled19 minmedian timetable
On pace91%within 2 min of schedule

THE SHORT ANSWER

How long does Boylston to Coolidge Corner take?

The median completed ride from Boylston to Coolidge Corner was 18 minutes; the published schedule’s median was 19 minutes.

Based on 3,529 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 18 minutes. That was within 1 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 21 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Boylston to Coolidge Corner times by daypart

Morning rush produced the fastest median for Boylston to Coolidge Corner; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

17 min 667 trips · 91% on pace

Midday

18 min 891 trips · 92% on pace

Evening rush

19 min 712 trips · 94% on pace

Off-peak

18 min 1,259 trips · 88% on pace

MEASUREMENT SAMPLE

How Boylston to Coolidge Corner was measured

The Boylston to Coolidge Corner estimate uses 3,529 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 →