OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Stony BrooktoMassachusetts Avenue

Orange Line

A direct MBTA train from Stony Brook to Massachusetts Avenue took a median 4.8 minutes across 5,131 observed trips; 90% of measured rides finished within approximately 5.2 minutes.

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

Typical4.8 min50th percentile
Slower trip5.2 min90th percentile
Scheduled7.2 minmedian timetable
On pace99%within 2 min of schedule

THE SHORT ANSWER

How long does Stony Brook to Massachusetts Avenue take?

The median completed ride from Stony Brook to Massachusetts Avenue was 4.8 minutes; the published schedule’s median was 7.2 minutes.

Based on 5,131 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 4.8 minutes. That was within 2.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 5.2 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Stony Brook to Massachusetts Avenue times by daypart

Evening rush produced the fastest median for Stony Brook to Massachusetts Avenue; Off-peak produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

4.8 min 1,073 trips · 98% on pace

Midday

4.8 min 1,178 trips · 98% on pace

Evening rush

4.8 min 1,098 trips · 99% on pace

Off-peak

4.8 min 1,782 trips · 99% on pace

MEASUREMENT SAMPLE

How Stony Brook to Massachusetts Avenue was measured

The Stony Brook to Massachusetts Avenue estimate uses 5,131 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 →